./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Haystacks-15.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/xcsp/Haystacks-15.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3bdc80ea776fe1ffc7508c5c2c40289486c8afa34c0799285ef26df9f184d4ab --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 03:10:31,910 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 03:10:31,988 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 03:10:31,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 03:10:31,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 03:10:32,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 03:10:32,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 03:10:32,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 03:10:32,030 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 03:10:32,031 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 03:10:32,031 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 03:10:32,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 03:10:32,032 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 03:10:32,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 03:10:32,034 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 03:10:32,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 03:10:32,039 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 03:10:32,039 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 03:10:32,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 03:10:32,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 03:10:32,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 03:10:32,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 03:10:32,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 03:10:32,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 03:10:32,043 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 03:10:32,043 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 03:10:32,043 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 03:10:32,043 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 03:10:32,044 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 03:10:32,044 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 03:10:32,044 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 03:10:32,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 03:10:32,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:10:32,045 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 03:10:32,045 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 03:10:32,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 03:10:32,046 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 03:10:32,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 03:10:32,047 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 03:10:32,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 03:10:32,048 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 03:10:32,048 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 03:10:32,048 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bdc80ea776fe1ffc7508c5c2c40289486c8afa34c0799285ef26df9f184d4ab [2024-11-22 03:10:32,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 03:10:32,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 03:10:32,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 03:10:32,336 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 03:10:32,337 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 03:10:32,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Haystacks-15.c [2024-11-22 03:10:33,900 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 03:10:34,274 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 03:10:34,275 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-15.c [2024-11-22 03:10:34,303 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/570954435/3f26430239fe410293e10921a8a16764/FLAG210217658 [2024-11-22 03:10:34,468 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/570954435/3f26430239fe410293e10921a8a16764 [2024-11-22 03:10:34,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 03:10:34,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 03:10:34,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 03:10:34,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 03:10:34,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 03:10:34,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:10:34" (1/1) ... [2024-11-22 03:10:34,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79263f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:34, skipping insertion in model container [2024-11-22 03:10:34,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:10:34" (1/1) ... [2024-11-22 03:10:34,614 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 03:10:35,083 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-15.c[87741,87754] [2024-11-22 03:10:35,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:10:35,120 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 03:10:35,240 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-15.c[87741,87754] [2024-11-22 03:10:35,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 03:10:35,269 INFO L204 MainTranslator]: Completed translation [2024-11-22 03:10:35,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35 WrapperNode [2024-11-22 03:10:35,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 03:10:35,272 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 03:10:35,272 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 03:10:35,272 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 03:10:35,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35" (1/1) ... [2024-11-22 03:10:35,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35" (1/1) ... [2024-11-22 03:10:35,522 INFO L138 Inliner]: procedures = 13, calls = 2242, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3376 [2024-11-22 03:10:35,523 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 03:10:35,524 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 03:10:35,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 03:10:35,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 03:10:35,535 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35" (1/1) ... [2024-11-22 03:10:35,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35" (1/1) ... [2024-11-22 03:10:35,597 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35" (1/1) ... [2024-11-22 03:10:35,644 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 03:10:35,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35" (1/1) ... [2024-11-22 03:10:35,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35" (1/1) ... [2024-11-22 03:10:35,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35" (1/1) ... [2024-11-22 03:10:35,693 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35" (1/1) ... [2024-11-22 03:10:35,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35" (1/1) ... [2024-11-22 03:10:35,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35" (1/1) ... [2024-11-22 03:10:35,734 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 03:10:35,736 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 03:10:35,737 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 03:10:35,737 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 03:10:35,738 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35" (1/1) ... [2024-11-22 03:10:35,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 03:10:35,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:10:35,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 03:10:35,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 03:10:35,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 03:10:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 03:10:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 03:10:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 03:10:35,820 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-22 03:10:35,820 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-22 03:10:35,976 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 03:10:35,977 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 03:10:43,987 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-22 03:10:43,988 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 03:10:44,057 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 03:10:44,058 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 03:10:44,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:10:44 BoogieIcfgContainer [2024-11-22 03:10:44,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 03:10:44,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 03:10:44,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 03:10:44,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 03:10:44,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 03:10:34" (1/3) ... [2024-11-22 03:10:44,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d37dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:10:44, skipping insertion in model container [2024-11-22 03:10:44,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:10:35" (2/3) ... [2024-11-22 03:10:44,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d37dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 03:10:44, skipping insertion in model container [2024-11-22 03:10:44,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:10:44" (3/3) ... [2024-11-22 03:10:44,070 INFO L112 eAbstractionObserver]: Analyzing ICFG Haystacks-15.c [2024-11-22 03:10:44,087 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 03:10:44,087 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 03:10:44,231 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 03:10:44,239 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;@6bdd1536, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 03:10:44,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 03:10:44,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 2471 states, 233 states have (on average 1.0085836909871244) internal successors, (235), 234 states have internal predecessors, (235), 2235 states have call successors, (2235), 1 states have call predecessors, (2235), 1 states have return successors, (2235), 2235 states have call predecessors, (2235), 2235 states have call successors, (2235) [2024-11-22 03:10:45,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11404 [2024-11-22 03:10:45,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:10:45,247 INFO L215 NwaCegarLoop]: trace histogram [2235, 2235, 2235, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:10:45,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:10:45,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:10:45,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1258122620, now seen corresponding path program 1 times [2024-11-22 03:10:45,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:10:45,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120658938] [2024-11-22 03:10:45,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:10:45,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 03:10:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:11:03,254 INFO L134 CoverageAnalysis]: Checked inductivity of 9985980 backedges. 0 proven. 4468 refuted. 0 times theorem prover too weak. 9981512 trivial. 0 not checked. [2024-11-22 03:11:03,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 03:11:03,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120658938] [2024-11-22 03:11:03,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120658938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 03:11:03,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596268828] [2024-11-22 03:11:03,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:11:03,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 03:11:03,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 03:11:03,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 03:11:03,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 03:11:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 03:11:06,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 20591 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 03:11:06,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 03:11:07,617 INFO L134 CoverageAnalysis]: Checked inductivity of 9985980 backedges. 4468 proven. 0 refuted. 0 times theorem prover too weak. 9981512 trivial. 0 not checked. [2024-11-22 03:11:07,618 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 03:11:07,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596268828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 03:11:07,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 03:11:07,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 03:11:07,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732802601] [2024-11-22 03:11:07,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 03:11:07,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 03:11:07,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 03:11:07,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 03:11:07,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 03:11:07,689 INFO L87 Difference]: Start difference. First operand has 2471 states, 233 states have (on average 1.0085836909871244) internal successors, (235), 234 states have internal predecessors, (235), 2235 states have call successors, (2235), 1 states have call predecessors, (2235), 1 states have return successors, (2235), 2235 states have call predecessors, (2235), 2235 states have call successors, (2235) Second operand has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 2 states have call successors, (2235), 2 states have call predecessors, (2235), 1 states have return successors, (2235), 1 states have call predecessors, (2235), 2 states have call successors, (2235) [2024-11-22 03:11:08,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 03:11:08,023 INFO L93 Difference]: Finished difference Result 4936 states and 11639 transitions. [2024-11-22 03:11:08,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 03:11:08,028 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 2 states have call successors, (2235), 2 states have call predecessors, (2235), 1 states have return successors, (2235), 1 states have call predecessors, (2235), 2 states have call successors, (2235) Word has length 11403 [2024-11-22 03:11:08,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 03:11:08,078 INFO L225 Difference]: With dead ends: 4936 [2024-11-22 03:11:08,078 INFO L226 Difference]: Without dead ends: 2468 [2024-11-22 03:11:08,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11404 GetRequests, 11404 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 03:11:08,115 INFO L432 NwaCegarLoop]: 4701 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4701 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 03:11:08,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4701 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 03:11:08,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2468 states. [2024-11-22 03:11:10,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2468 to 2468. [2024-11-22 03:11:10,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2468 states, 231 states have (on average 1.0) internal successors, (231), 231 states have internal predecessors, (231), 2235 states have call successors, (2235), 1 states have call predecessors, (2235), 1 states have return successors, (2235), 2235 states have call predecessors, (2235), 2235 states have call successors, (2235) [2024-11-22 03:11:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 4701 transitions. [2024-11-22 03:11:10,238 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 4701 transitions. Word has length 11403 [2024-11-22 03:11:10,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 03:11:10,242 INFO L471 AbstractCegarLoop]: Abstraction has 2468 states and 4701 transitions. [2024-11-22 03:11:10,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 2 states have call successors, (2235), 2 states have call predecessors, (2235), 1 states have return successors, (2235), 1 states have call predecessors, (2235), 2 states have call successors, (2235) [2024-11-22 03:11:10,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 4701 transitions. [2024-11-22 03:11:10,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11404 [2024-11-22 03:11:10,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 03:11:10,868 INFO L215 NwaCegarLoop]: trace histogram [2235, 2235, 2235, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 03:11:10,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 03:11:11,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 03:11:11,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 03:11:11,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 03:11:11,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1973185794, now seen corresponding path program 1 times [2024-11-22 03:11:11,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 03:11:11,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641086998] [2024-11-22 03:11:11,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 03:11:11,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms