./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.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 ec179c2b0ae29cffe9fd88f2044fb26f554ea0dd1abcec6f41fd07a61f74c869 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 04:11:56,692 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 04:11:56,777 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 04:11:56,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 04:11:56,783 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 04:11:56,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 04:11:56,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 04:11:56,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 04:11:56,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 04:11:56,811 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 04:11:56,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 04:11:56,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 04:11:56,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 04:11:56,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 04:11:56,816 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 04:11:56,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 04:11:56,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 04:11:56,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 04:11:56,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 04:11:56,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 04:11:56,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 04:11:56,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 04:11:56,822 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 04:11:56,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 04:11:56,822 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 04:11:56,823 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 04:11:56,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 04:11:56,824 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 04:11:56,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 04:11:56,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:11:56,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 04:11:56,825 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 04:11:56,825 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 04:11:56,825 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 04:11:56,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 04:11:56,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 04:11:56,826 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 04:11:56,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 04:11:56,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 04:11:56,827 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec179c2b0ae29cffe9fd88f2044fb26f554ea0dd1abcec6f41fd07a61f74c869 [2024-10-24 04:11:57,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 04:11:57,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 04:11:57,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 04:11:57,128 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 04:11:57,128 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 04:11:57,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2024-10-24 04:11:58,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 04:11:58,792 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 04:11:58,793 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2024-10-24 04:11:58,803 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1303b5bcc/a9e0424d705341228bea72670db7c0ab/FLAGe238fda99 [2024-10-24 04:11:59,160 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1303b5bcc/a9e0424d705341228bea72670db7c0ab [2024-10-24 04:11:59,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 04:11:59,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 04:11:59,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 04:11:59,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 04:11:59,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 04:11:59,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@542e7f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59, skipping insertion in model container [2024-10-24 04:11:59,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,206 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 04:11:59,373 WARN L248 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.h_b06.c[1245,1258] [2024-10-24 04:11:59,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:11:59,470 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 04:11:59,496 WARN L248 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.h_b06.c[1245,1258] [2024-10-24 04:11:59,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:11:59,544 INFO L204 MainTranslator]: Completed translation [2024-10-24 04:11:59,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59 WrapperNode [2024-10-24 04:11:59,545 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 04:11:59,546 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 04:11:59,546 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 04:11:59,546 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 04:11:59,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,621 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 259 [2024-10-24 04:11:59,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 04:11:59,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 04:11:59,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 04:11:59,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 04:11:59,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,645 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,682 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]. [2024-10-24 04:11:59,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,710 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,724 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 04:11:59,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 04:11:59,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 04:11:59,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 04:11:59,744 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59" (1/1) ... [2024-10-24 04:11:59,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:11:59,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 04:11:59,783 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) [2024-10-24 04:11:59,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 04:11:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 04:11:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 04:11:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 04:11:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 04:11:59,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 04:11:59,947 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 04:11:59,949 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 04:12:00,416 INFO L? ?]: Removed 124 outVars from TransFormulas that were not future-live. [2024-10-24 04:12:00,417 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 04:12:00,452 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 04:12:00,452 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 04:12:00,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:12:00 BoogieIcfgContainer [2024-10-24 04:12:00,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 04:12:00,455 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 04:12:00,455 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 04:12:00,458 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 04:12:00,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:11:59" (1/3) ... [2024-10-24 04:12:00,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302ab2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:12:00, skipping insertion in model container [2024-10-24 04:12:00,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:11:59" (2/3) ... [2024-10-24 04:12:00,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302ab2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:12:00, skipping insertion in model container [2024-10-24 04:12:00,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:12:00" (3/3) ... [2024-10-24 04:12:00,463 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b06.c [2024-10-24 04:12:00,481 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 04:12:00,482 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 04:12:00,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 04:12:00,546 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;@10fe3abc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 04:12:00,547 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 04:12:00,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 57 states have (on average 1.5087719298245614) internal successors, (86), 58 states have internal predecessors, (86), 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) [2024-10-24 04:12:00,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-24 04:12:00,558 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:12:00,559 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] [2024-10-24 04:12:00,560 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:12:00,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:12:00,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1854122609, now seen corresponding path program 1 times [2024-10-24 04:12:00,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:12:00,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996171501] [2024-10-24 04:12:00,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:12:00,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:12:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:12:01,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:12:01,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:12:01,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996171501] [2024-10-24 04:12:01,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996171501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:12:01,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:12:01,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:12:01,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866474884] [2024-10-24 04:12:01,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:12:01,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:12:01,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:12:01,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:12:01,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:12:01,215 INFO L87 Difference]: Start difference. First operand has 59 states, 57 states have (on average 1.5087719298245614) internal successors, (86), 58 states have internal predecessors, (86), 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 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:12:01,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:12:01,256 INFO L93 Difference]: Finished difference Result 102 states and 150 transitions. [2024-10-24 04:12:01,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:12:01,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-10-24 04:12:01,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:12:01,270 INFO L225 Difference]: With dead ends: 102 [2024-10-24 04:12:01,270 INFO L226 Difference]: Without dead ends: 60 [2024-10-24 04:12:01,273 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 [2024-10-24 04:12:01,277 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:12:01,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 238 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:12:01,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-10-24 04:12:01,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-10-24 04:12:01,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.4576271186440677) internal successors, (86), 59 states have internal predecessors, (86), 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) [2024-10-24 04:12:01,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 86 transitions. [2024-10-24 04:12:01,312 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 86 transitions. Word has length 24 [2024-10-24 04:12:01,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:12:01,312 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 86 transitions. [2024-10-24 04:12:01,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 04:12:01,313 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 86 transitions. [2024-10-24 04:12:01,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 04:12:01,314 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:12:01,314 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] [2024-10-24 04:12:01,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 04:12:01,314 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:12:01,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:12:01,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1641530748, now seen corresponding path program 1 times [2024-10-24 04:12:01,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:12:01,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041119657] [2024-10-24 04:12:01,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:12:01,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:12:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:12:01,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:12:01,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:12:01,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041119657] [2024-10-24 04:12:01,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041119657] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:12:01,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:12:01,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:12:01,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889568869] [2024-10-24 04:12:01,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:12:01,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:12:01,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:12:01,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:12:01,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:12:01,518 INFO L87 Difference]: Start difference. First operand 60 states and 86 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-10-24 04:12:01,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:12:01,560 INFO L93 Difference]: Finished difference Result 105 states and 150 transitions. [2024-10-24 04:12:01,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:12:01,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2024-10-24 04:12:01,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:12:01,563 INFO L225 Difference]: With dead ends: 105 [2024-10-24 04:12:01,563 INFO L226 Difference]: Without dead ends: 62 [2024-10-24 04:12:01,564 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 [2024-10-24 04:12:01,565 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:12:01,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 235 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:12:01,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-24 04:12:01,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-10-24 04:12:01,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 61 states have internal predecessors, (88), 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) [2024-10-24 04:12:01,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 88 transitions. [2024-10-24 04:12:01,574 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 88 transitions. Word has length 25 [2024-10-24 04:12:01,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:12:01,575 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 88 transitions. [2024-10-24 04:12:01,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2024-10-24 04:12:01,576 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 88 transitions. [2024-10-24 04:12:01,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-24 04:12:01,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:12:01,577 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] [2024-10-24 04:12:01,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 04:12:01,578 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:12:01,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:12:01,580 INFO L85 PathProgramCache]: Analyzing trace with hash -445811448, now seen corresponding path program 1 times [2024-10-24 04:12:01,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:12:01,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885830179] [2024-10-24 04:12:01,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:12:01,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:12:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:12:01,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:12:01,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:12:01,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885830179] [2024-10-24 04:12:01,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885830179] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:12:01,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:12:01,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:12:01,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291165677] [2024-10-24 04:12:01,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:12:01,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 04:12:01,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:12:01,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 04:12:01,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:12:01,824 INFO L87 Difference]: Start difference. First operand 62 states and 88 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-10-24 04:12:01,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:12:01,898 INFO L93 Difference]: Finished difference Result 111 states and 157 transitions. [2024-10-24 04:12:01,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 04:12:01,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2024-10-24 04:12:01,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:12:01,900 INFO L225 Difference]: With dead ends: 111 [2024-10-24 04:12:01,900 INFO L226 Difference]: Without dead ends: 66 [2024-10-24 04:12:01,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:12:01,901 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 72 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:12:01,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 222 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:12:01,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-24 04:12:01,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2024-10-24 04:12:01,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.421875) internal successors, (91), 64 states have internal predecessors, (91), 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) [2024-10-24 04:12:01,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 91 transitions. [2024-10-24 04:12:01,914 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 91 transitions. Word has length 26 [2024-10-24 04:12:01,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:12:01,915 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 91 transitions. [2024-10-24 04:12:01,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2024-10-24 04:12:01,915 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2024-10-24 04:12:01,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-24 04:12:01,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:12:01,917 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] [2024-10-24 04:12:01,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 04:12:01,917 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:12:01,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:12:01,918 INFO L85 PathProgramCache]: Analyzing trace with hash 629292231, now seen corresponding path program 1 times [2024-10-24 04:12:01,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:12:01,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416158237] [2024-10-24 04:12:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:12:01,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:12:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:12:02,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:12:02,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:12:02,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416158237] [2024-10-24 04:12:02,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416158237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:12:02,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:12:02,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 04:12:02,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283473416] [2024-10-24 04:12:02,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:12:02,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 04:12:02,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:12:02,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 04:12:02,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:12:02,541 INFO L87 Difference]: Start difference. First operand 65 states and 91 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 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) [2024-10-24 04:12:02,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:12:02,680 INFO L93 Difference]: Finished difference Result 130 states and 182 transitions. [2024-10-24 04:12:02,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 04:12:02,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 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 [2024-10-24 04:12:02,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:12:02,683 INFO L225 Difference]: With dead ends: 130 [2024-10-24 04:12:02,683 INFO L226 Difference]: Without dead ends: 82 [2024-10-24 04:12:02,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-24 04:12:02,687 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 114 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:12:02,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 357 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:12:02,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-10-24 04:12:02,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 77. [2024-10-24 04:12:02,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 76 states have internal predecessors, (108), 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) [2024-10-24 04:12:02,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2024-10-24 04:12:02,704 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 27 [2024-10-24 04:12:02,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:12:02,704 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2024-10-24 04:12:02,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 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) [2024-10-24 04:12:02,705 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2024-10-24 04:12:02,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-24 04:12:02,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:12:02,707 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] [2024-10-24 04:12:02,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 04:12:02,708 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:12:02,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:12:02,708 INFO L85 PathProgramCache]: Analyzing trace with hash -26366069, now seen corresponding path program 1 times [2024-10-24 04:12:02,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:12:02,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433359424] [2024-10-24 04:12:02,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:12:02,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:12:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:12:03,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:12:03,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:12:03,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433359424] [2024-10-24 04:12:03,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433359424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:12:03,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:12:03,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 04:12:03,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662339696] [2024-10-24 04:12:03,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:12:03,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:12:03,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:12:03,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:12:03,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:12:03,056 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 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) [2024-10-24 04:12:03,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:12:03,122 INFO L93 Difference]: Finished difference Result 123 states and 172 transitions. [2024-10-24 04:12:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 04:12:03,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 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 [2024-10-24 04:12:03,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:12:03,124 INFO L225 Difference]: With dead ends: 123 [2024-10-24 04:12:03,124 INFO L226 Difference]: Without dead ends: 75 [2024-10-24 04:12:03,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-24 04:12:03,125 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 63 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:12:03,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 273 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:12:03,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-24 04:12:03,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2024-10-24 04:12:03,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.4225352112676057) internal successors, (101), 71 states have internal predecessors, (101), 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) [2024-10-24 04:12:03,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2024-10-24 04:12:03,140 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 27 [2024-10-24 04:12:03,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:12:03,140 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2024-10-24 04:12:03,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 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) [2024-10-24 04:12:03,141 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2024-10-24 04:12:03,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-24 04:12:03,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:12:03,142 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] [2024-10-24 04:12:03,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 04:12:03,142 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:12:03,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:12:03,142 INFO L85 PathProgramCache]: Analyzing trace with hash 747197092, now seen corresponding path program 1 times [2024-10-24 04:12:03,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:12:03,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968101143] [2024-10-24 04:12:03,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:12:03,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:12:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 04:12:03,169 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 04:12:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 04:12:03,215 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 04:12:03,216 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 04:12:03,217 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 04:12:03,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 04:12:03,222 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-24 04:12:03,262 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 04:12:03,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:12:03 BoogieIcfgContainer [2024-10-24 04:12:03,269 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 04:12:03,269 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 04:12:03,270 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 04:12:03,270 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 04:12:03,270 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:12:00" (3/4) ... [2024-10-24 04:12:03,273 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 04:12:03,274 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 04:12:03,274 INFO L158 Benchmark]: Toolchain (without parser) took 4111.02ms. Allocated memory was 157.3MB in the beginning and 192.9MB in the end (delta: 35.7MB). Free memory was 101.1MB in the beginning and 82.5MB in the end (delta: 18.6MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2024-10-24 04:12:03,275 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 96.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 04:12:03,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.22ms. Allocated memory is still 157.3MB. Free memory was 100.7MB in the beginning and 127.7MB in the end (delta: -27.0MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2024-10-24 04:12:03,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.57ms. Allocated memory is still 157.3MB. Free memory was 127.7MB in the beginning and 122.0MB in the end (delta: 5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 04:12:03,277 INFO L158 Benchmark]: Boogie Preprocessor took 118.00ms. Allocated memory is still 157.3MB. Free memory was 122.0MB in the beginning and 118.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 04:12:03,278 INFO L158 Benchmark]: RCFGBuilder took 711.78ms. Allocated memory is still 157.3MB. Free memory was 118.0MB in the beginning and 82.2MB in the end (delta: 35.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-10-24 04:12:03,278 INFO L158 Benchmark]: TraceAbstraction took 2813.92ms. Allocated memory was 157.3MB in the beginning and 192.9MB in the end (delta: 35.7MB). Free memory was 81.5MB in the beginning and 82.5MB in the end (delta: -961.6kB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2024-10-24 04:12:03,278 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 192.9MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 04:12:03,280 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 96.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.22ms. Allocated memory is still 157.3MB. Free memory was 100.7MB in the beginning and 127.7MB in the end (delta: -27.0MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.57ms. Allocated memory is still 157.3MB. Free memory was 127.7MB in the beginning and 122.0MB in the end (delta: 5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 118.00ms. Allocated memory is still 157.3MB. Free memory was 122.0MB in the beginning and 118.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 711.78ms. Allocated memory is still 157.3MB. Free memory was 118.0MB in the beginning and 82.2MB in the end (delta: 35.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2813.92ms. Allocated memory was 157.3MB in the beginning and 192.9MB in the end (delta: 35.7MB). Free memory was 81.5MB in the beginning and 82.5MB in the end (delta: -961.6kB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. * Witness Printer took 4.50ms. Allocated memory is still 192.9MB. Free memory is still 82.5MB. 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 bitwiseAnd at line 89. 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_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 2); [L30] const SORT_11 msb_SORT_11 = (SORT_11)1 << (2 - 1); [L32] const SORT_15 mask_SORT_15 = (SORT_15)-1 >> (sizeof(SORT_15) * 8 - 32); [L33] const SORT_15 msb_SORT_15 = (SORT_15)1 << (32 - 1); [L35] const SORT_1 var_5 = 0; [L36] const SORT_11 var_12 = 0; [L37] const SORT_15 var_17 = 2; [L38] const SORT_1 var_22 = 1; [L39] const SORT_11 var_39 = 1; [L41] SORT_1 input_2; [L42] SORT_1 input_3; [L43] SORT_1 input_4; [L44] SORT_11 input_26; [L45] SORT_11 input_40; [L46] SORT_1 input_45; [L48] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_1=1, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L48] SORT_1 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L49] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_1=1, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L49] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L50] EXPR __VERIFIER_nondet_uchar() & mask_SORT_11 VAL [mask_SORT_11=3, mask_SORT_1=1, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L50] SORT_11 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L51] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_1=1, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L51] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L53] SORT_1 init_7_arg_1 = var_5; [L54] state_6 = init_7_arg_1 [L55] SORT_1 init_9_arg_1 = var_5; [L56] state_8 = init_9_arg_1 [L57] SORT_11 init_14_arg_1 = var_12; [L58] state_13 = init_14_arg_1 [L59] SORT_1 init_32_arg_1 = var_5; [L60] state_31 = init_32_arg_1 VAL [mask_SORT_11=3, mask_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L63] input_2 = __VERIFIER_nondet_uchar() [L64] EXPR input_2 & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L64] input_2 = input_2 & mask_SORT_1 [L65] input_3 = __VERIFIER_nondet_uchar() [L66] EXPR input_3 & mask_SORT_1 VAL [input_2=0, mask_SORT_11=3, mask_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L66] input_3 = input_3 & mask_SORT_1 [L67] input_4 = __VERIFIER_nondet_uchar() [L68] input_26 = __VERIFIER_nondet_uchar() [L69] input_40 = __VERIFIER_nondet_uchar() [L70] input_45 = __VERIFIER_nondet_uchar() [L73] SORT_1 var_10_arg_0 = state_6; [L74] SORT_1 var_10_arg_1 = state_8; [L75] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L76] SORT_11 var_16_arg_0 = state_13; VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_10=1, var_12=0, var_16_arg_0=0, var_17=2, var_22=1, var_39=1, var_5=0] [L77] EXPR var_16_arg_0 & mask_SORT_11 VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_10=1, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L77] var_16_arg_0 = var_16_arg_0 & mask_SORT_11 [L78] SORT_15 var_16 = var_16_arg_0; [L79] SORT_15 var_18_arg_0 = var_16; [L80] SORT_15 var_18_arg_1 = var_17; [L81] SORT_1 var_18 = var_18_arg_0 != var_18_arg_1; [L82] SORT_1 var_19_arg_0 = var_10; [L83] SORT_1 var_19_arg_1 = var_18; VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_12=0, var_17=2, var_19_arg_0=1, var_19_arg_1=1, var_22=1, var_39=1, var_5=0] [L84] EXPR var_19_arg_0 & var_19_arg_1 VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L84] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1; [L85] SORT_1 var_23_arg_0 = var_19; [L86] SORT_1 var_23 = ~var_23_arg_0; [L87] SORT_1 var_24_arg_0 = var_22; [L88] SORT_1 var_24_arg_1 = var_23; VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_12=0, var_17=2, var_22=1, var_24_arg_0=1, var_24_arg_1=-2, var_39=1, var_5=0] [L89] EXPR var_24_arg_0 & var_24_arg_1 VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L89] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L90] EXPR var_24 & mask_SORT_1 VAL [input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_1=1, state_31=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L90] var_24 = var_24 & mask_SORT_1 [L91] SORT_1 bad_25_arg_0 = var_24; [L92] CALL __VERIFIER_assert(!(bad_25_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 249 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 249 mSDsluCounter, 1325 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 945 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 380 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=4, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 157 NumberOfCodeBlocks, 157 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 388 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 [2024-10-24 04:12:03,310 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.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 ec179c2b0ae29cffe9fd88f2044fb26f554ea0dd1abcec6f41fd07a61f74c869 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 04:12:05,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 04:12:05,632 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-10-24 04:12:05,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 04:12:05,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 04:12:05,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 04:12:05,674 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 04:12:05,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 04:12:05,675 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 04:12:05,675 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 04:12:05,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 04:12:05,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 04:12:05,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 04:12:05,677 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 04:12:05,678 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 04:12:05,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 04:12:05,678 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 04:12:05,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 04:12:05,679 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 04:12:05,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 04:12:05,680 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 04:12:05,682 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 04:12:05,682 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 04:12:05,683 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 04:12:05,683 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 04:12:05,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 04:12:05,684 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 04:12:05,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 04:12:05,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 04:12:05,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 04:12:05,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 04:12:05,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:12:05,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 04:12:05,686 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 04:12:05,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 04:12:05,687 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 04:12:05,687 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 04:12:05,687 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 04:12:05,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 04:12:05,688 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 04:12:05,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 04:12:05,689 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 04:12:05,689 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec179c2b0ae29cffe9fd88f2044fb26f554ea0dd1abcec6f41fd07a61f74c869 [2024-10-24 04:12:06,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 04:12:06,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 04:12:06,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 04:12:06,054 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 04:12:06,055 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 04:12:06,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2024-10-24 04:12:07,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 04:12:07,967 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 04:12:07,968 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2024-10-24 04:12:07,980 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1209810c3/530664bceed3405daaea26180b1fc549/FLAG98f92fa1d [2024-10-24 04:12:07,999 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1209810c3/530664bceed3405daaea26180b1fc549 [2024-10-24 04:12:08,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 04:12:08,006 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 04:12:08,008 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 04:12:08,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 04:12:08,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 04:12:08,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f01e545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08, skipping insertion in model container [2024-10-24 04:12:08,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,047 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 04:12:08,253 WARN L248 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.h_b06.c[1245,1258] [2024-10-24 04:12:08,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:12:08,325 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 04:12:08,341 WARN L248 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.h_b06.c[1245,1258] [2024-10-24 04:12:08,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:12:08,397 INFO L204 MainTranslator]: Completed translation [2024-10-24 04:12:08,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08 WrapperNode [2024-10-24 04:12:08,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 04:12:08,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 04:12:08,400 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 04:12:08,400 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 04:12:08,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,417 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,449 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 155 [2024-10-24 04:12:08,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 04:12:08,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 04:12:08,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 04:12:08,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 04:12:08,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,470 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,492 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]. [2024-10-24 04:12:08,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,514 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,520 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 04:12:08,524 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 04:12:08,524 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 04:12:08,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 04:12:08,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08" (1/1) ... [2024-10-24 04:12:08,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:12:08,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 04:12:08,558 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) [2024-10-24 04:12:08,562 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 [2024-10-24 04:12:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 04:12:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 04:12:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-24 04:12:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 04:12:08,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 04:12:08,746 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 04:12:08,750 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 04:12:09,018 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-10-24 04:12:09,020 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 04:12:09,063 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 04:12:09,064 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 04:12:09,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:12:09 BoogieIcfgContainer [2024-10-24 04:12:09,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 04:12:09,067 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 04:12:09,067 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 04:12:09,070 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 04:12:09,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:12:08" (1/3) ... [2024-10-24 04:12:09,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@917fcf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:12:09, skipping insertion in model container [2024-10-24 04:12:09,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:12:08" (2/3) ... [2024-10-24 04:12:09,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@917fcf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:12:09, skipping insertion in model container [2024-10-24 04:12:09,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:12:09" (3/3) ... [2024-10-24 04:12:09,076 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b06.c [2024-10-24 04:12:09,093 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 04:12:09,093 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 04:12:09,154 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 04:12:09,165 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;@42093f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 04:12:09,166 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 04:12:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-10-24 04:12:09,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-24 04:12:09,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:12:09,179 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-24 04:12:09,179 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:12:09,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:12:09,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1614770, now seen corresponding path program 1 times [2024-10-24 04:12:09,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 04:12:09,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848101316] [2024-10-24 04:12:09,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:12:09,202 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 [2024-10-24 04:12:09,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 04:12:09,206 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) [2024-10-24 04:12:09,207 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 [2024-10-24 04:12:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:12:09,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-24 04:12:09,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 04:12:09,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:12:09,702 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 04:12:09,703 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 04:12:09,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848101316] [2024-10-24 04:12:09,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [848101316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:12:09,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:12:09,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 04:12:09,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775734027] [2024-10-24 04:12:09,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:12:09,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:12:09,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 04:12:09,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:12:09,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:12:09,740 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-24 04:12:09,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:12:09,776 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2024-10-24 04:12:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:12:09,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-10-24 04:12:09,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:12:09,788 INFO L225 Difference]: With dead ends: 14 [2024-10-24 04:12:09,788 INFO L226 Difference]: Without dead ends: 8 [2024-10-24 04:12:09,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:12:09,796 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 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 [2024-10-24 04:12:09,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:12:09,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2024-10-24 04:12:09,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-10-24 04:12:09,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2024-10-24 04:12:09,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-10-24 04:12:09,827 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2024-10-24 04:12:09,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:12:09,828 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-10-24 04:12:09,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-10-24 04:12:09,828 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-10-24 04:12:09,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 04:12:09,829 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:12:09,829 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-24 04:12:09,833 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 [2024-10-24 04:12:10,029 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 [2024-10-24 04:12:10,030 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:12:10,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:12:10,031 INFO L85 PathProgramCache]: Analyzing trace with hash 865745430, now seen corresponding path program 1 times [2024-10-24 04:12:10,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 04:12:10,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30763404] [2024-10-24 04:12:10,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:12:10,032 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 [2024-10-24 04:12:10,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 04:12:10,036 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) [2024-10-24 04:12:10,038 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 [2024-10-24 04:12:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:12:10,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-24 04:12:10,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 04:12:10,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:12:10,644 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 04:12:17,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:12:17,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 04:12:17,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30763404] [2024-10-24 04:12:17,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30763404] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 04:12:17,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 04:12:17,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-24 04:12:17,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191763923] [2024-10-24 04:12:17,037 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 04:12:17,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 04:12:17,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 04:12:17,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 04:12:17,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=39, Unknown=1, NotChecked=0, Total=56 [2024-10-24 04:12:17,040 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2024-10-24 04:12:17,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:12:17,419 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2024-10-24 04:12:17,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 04:12:17,420 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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 7 [2024-10-24 04:12:17,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:12:17,420 INFO L225 Difference]: With dead ends: 13 [2024-10-24 04:12:17,420 INFO L226 Difference]: Without dead ends: 11 [2024-10-24 04:12:17,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=27, Invalid=62, Unknown=1, NotChecked=0, Total=90 [2024-10-24 04:12:17,422 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 04:12:17,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 04:12:17,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-10-24 04:12:17,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-10-24 04:12:17,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 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) [2024-10-24 04:12:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-10-24 04:12:17,426 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2024-10-24 04:12:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:12:17,427 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-10-24 04:12:17,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2024-10-24 04:12:17,427 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-10-24 04:12:17,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-24 04:12:17,428 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:12:17,428 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2024-10-24 04:12:17,434 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 [2024-10-24 04:12:17,628 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 [2024-10-24 04:12:17,629 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:12:17,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:12:17,630 INFO L85 PathProgramCache]: Analyzing trace with hash 148265266, now seen corresponding path program 2 times [2024-10-24 04:12:17,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 04:12:17,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484611459] [2024-10-24 04:12:17,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 04:12:17,631 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 [2024-10-24 04:12:17,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 04:12:17,635 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) [2024-10-24 04:12:17,636 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 [2024-10-24 04:12:17,747 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 04:12:17,748 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 04:12:17,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-24 04:12:17,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 04:12:18,492 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:12:18,493 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 04:12:31,531 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (let ((.cse9 (forall ((|v_ULTIMATE.start_main_~var_24_arg_0~0#1_21| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_24_arg_0~0#1_21|)))))) (_ bv0 8)))) (.cse10 (forall ((|v_ULTIMATE.start_main_~var_24_arg_0~0#1_21| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv254 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_24_arg_0~0#1_21|))))))))) (.cse8 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_39~0#1|))))) (let ((.cse6 (= |c_ULTIMATE.start_main_~state_31~0#1| (_ bv0 8))) (.cse1 (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse8))))) (.cse12 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_12~0#1|))))))))) (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_11~0#1| (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_11~0#1|) .cse11))) |c_ULTIMATE.start_main_~var_17~0#1|)) .cse10) (or .cse9 (forall ((|ULTIMATE.start_main_~mask_SORT_11~0#1| (_ BitVec 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_11~0#1|) .cse11))) |c_ULTIMATE.start_main_~var_17~0#1|)))) (or (forall ((|ULTIMATE.start_main_~mask_SORT_11~0#1| (_ BitVec 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_11~0#1|) .cse12))) |c_ULTIMATE.start_main_~var_17~0#1|))) .cse9) (or .cse10 (forall ((|ULTIMATE.start_main_~mask_SORT_11~0#1| (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_11~0#1|) .cse12))) |c_ULTIMATE.start_main_~var_17~0#1|)))))) (.cse3 (and (or (forall ((|ULTIMATE.start_main_~mask_SORT_11~0#1| (_ BitVec 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_11~0#1|)))) |c_ULTIMATE.start_main_~var_17~0#1|))) .cse9) (or .cse10 (forall ((|ULTIMATE.start_main_~mask_SORT_11~0#1| (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse8 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_11~0#1|)))) |c_ULTIMATE.start_main_~var_17~0#1|))))) (.cse5 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_22~0#1|))))) (and (or (let ((.cse0 (= (_ bv0 8) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse5)))))))) (.cse2 (= ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_5~0#1|))))))))) (_ bv0 8)))) (and (or .cse0 .cse1) (or (not .cse2) .cse3) (or (not .cse0) .cse3) (or .cse1 .cse2))) .cse6) (or (not .cse6) (let ((.cse7 (= (_ bv0 8) ((_ extract 7 0) (bvand .cse4 .cse5))))) (and (or .cse7 .cse1) (or (not .cse7) .cse3)))))))) is different from false [2024-10-24 04:12:35,393 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2024-10-24 04:12:35,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 04:12:35,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484611459] [2024-10-24 04:12:35,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484611459] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 04:12:35,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 04:12:35,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-10-24 04:12:35,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484310647] [2024-10-24 04:12:35,395 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 04:12:35,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 04:12:35,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 04:12:35,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 04:12:35,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=53, Unknown=2, NotChecked=14, Total=90 [2024-10-24 04:12:35,397 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 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) [2024-10-24 04:12:46,631 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-10-24 04:12:46,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=59, Invalid=152, Unknown=3, NotChecked=26, Total=240 [2024-10-24 04:12:46,634 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 04:12:46,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 6 Unchecked, 0.5s Time] [2024-10-24 04:12:46,636 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 101 [2024-10-24 04:12:46,644 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 [2024-10-24 04:12:46,844 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 [2024-10-24 04:12:46,846 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:177) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:665) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:385) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:421) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:307) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream Closed at java.base/java.io.FileOutputStream.writeBytes(Native Method) at java.base/java.io.FileOutputStream.write(FileOutputStream.java:354) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:175) ... 36 more [2024-10-24 04:12:46,850 INFO L158 Benchmark]: Toolchain (without parser) took 38843.68ms. Allocated memory was 75.5MB in the beginning and 117.4MB in the end (delta: 41.9MB). Free memory was 42.5MB in the beginning and 88.2MB in the end (delta: -45.7MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2024-10-24 04:12:46,850 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 52.4MB. Free memory is still 29.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 04:12:46,850 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.01ms. Allocated memory is still 75.5MB. Free memory was 42.3MB in the beginning and 44.8MB in the end (delta: -2.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-10-24 04:12:46,850 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.31ms. Allocated memory is still 75.5MB. Free memory was 44.8MB in the beginning and 42.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 04:12:46,851 INFO L158 Benchmark]: Boogie Preprocessor took 72.98ms. Allocated memory is still 75.5MB. Free memory was 42.8MB in the beginning and 40.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 04:12:46,856 INFO L158 Benchmark]: RCFGBuilder took 540.82ms. Allocated memory is still 75.5MB. Free memory was 40.1MB in the beginning and 42.4MB in the end (delta: -2.3MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-10-24 04:12:46,857 INFO L158 Benchmark]: TraceAbstraction took 37782.02ms. Allocated memory was 75.5MB in the beginning and 117.4MB in the end (delta: 41.9MB). Free memory was 41.6MB in the beginning and 88.2MB in the end (delta: -46.5MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2024-10-24 04:12:46,859 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 52.4MB. Free memory is still 29.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.01ms. Allocated memory is still 75.5MB. Free memory was 42.3MB in the beginning and 44.8MB in the end (delta: -2.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.31ms. Allocated memory is still 75.5MB. Free memory was 44.8MB in the beginning and 42.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.98ms. Allocated memory is still 75.5MB. Free memory was 42.8MB in the beginning and 40.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 540.82ms. Allocated memory is still 75.5MB. Free memory was 40.1MB in the beginning and 42.4MB in the end (delta: -2.3MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * TraceAbstraction took 37782.02ms. Allocated memory was 75.5MB in the beginning and 117.4MB in the end (delta: 41.9MB). Free memory was 41.6MB in the beginning and 88.2MB in the end (delta: -46.5MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:337) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Connection to SMT solver broken