./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal47.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal47.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 1581f09226f6dc65ed43ccb06c03e18f6e0477c301bfc913845a02406d7203db --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 23:40:33,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 23:40:34,052 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-11 23:40:34,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 23:40:34,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 23:40:34,076 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 23:40:34,077 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 23:40:34,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 23:40:34,078 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 23:40:34,078 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 23:40:34,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 23:40:34,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 23:40:34,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 23:40:34,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 23:40:34,080 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 23:40:34,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 23:40:34,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 23:40:34,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 23:40:34,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 23:40:34,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 23:40:34,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 23:40:34,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 23:40:34,084 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 23:40:34,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 23:40:34,085 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 23:40:34,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 23:40:34,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 23:40:34,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 23:40:34,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 23:40:34,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 23:40:34,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 23:40:34,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 23:40:34,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 23:40:34,087 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 23:40:34,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 23:40:34,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 23:40:34,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 23:40:34,088 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 23:40:34,088 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 23:40:34,089 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1581f09226f6dc65ed43ccb06c03e18f6e0477c301bfc913845a02406d7203db [2024-11-11 23:40:34,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 23:40:34,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 23:40:34,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 23:40:34,357 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 23:40:34,358 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 23:40:34,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal47.c [2024-11-11 23:40:35,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 23:40:36,355 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 23:40:36,355 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal47.c [2024-11-11 23:40:36,418 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72fdaf269/3cc025c06f8d48968cbdb66669d90687/FLAGcfa853be5 [2024-11-11 23:40:36,435 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72fdaf269/3cc025c06f8d48968cbdb66669d90687 [2024-11-11 23:40:36,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 23:40:36,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 23:40:36,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 23:40:36,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 23:40:36,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 23:40:36,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:40:36" (1/1) ... [2024-11-11 23:40:36,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f1ae97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:36, skipping insertion in model container [2024-11-11 23:40:36,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:40:36" (1/1) ... [2024-11-11 23:40:36,597 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 23:40:36,927 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal47.c[1245,1258] [2024-11-11 23:40:38,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 23:40:38,147 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 23:40:38,158 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal47.c[1245,1258] [2024-11-11 23:40:39,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 23:40:39,264 INFO L204 MainTranslator]: Completed translation [2024-11-11 23:40:39,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39 WrapperNode [2024-11-11 23:40:39,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 23:40:39,267 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 23:40:39,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 23:40:39,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 23:40:39,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39" (1/1) ... [2024-11-11 23:40:39,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39" (1/1) ... [2024-11-11 23:40:43,760 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36373 [2024-11-11 23:40:43,760 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 23:40:43,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 23:40:43,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 23:40:43,761 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 23:40:43,770 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39" (1/1) ... [2024-11-11 23:40:43,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39" (1/1) ... [2024-11-11 23:40:45,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39" (1/1) ... [2024-11-11 23:40:45,620 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-11 23:40:45,621 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39" (1/1) ... [2024-11-11 23:40:45,621 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39" (1/1) ... [2024-11-11 23:40:46,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39" (1/1) ... [2024-11-11 23:40:46,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39" (1/1) ... [2024-11-11 23:40:47,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39" (1/1) ... [2024-11-11 23:40:47,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39" (1/1) ... [2024-11-11 23:40:47,800 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 23:40:47,801 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 23:40:47,801 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 23:40:47,801 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 23:40:47,802 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39" (1/1) ... [2024-11-11 23:40:47,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 23:40:47,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 23:40:47,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 23:40:47,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 23:40:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 23:40:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 23:40:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 23:40:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 23:40:47,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 23:40:49,647 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 23:40:49,649 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 23:41:52,668 INFO L? ?]: Removed 20115 outVars from TransFormulas that were not future-live. [2024-11-11 23:41:52,668 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 23:41:52,793 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 23:41:52,793 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 23:41:52,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:41:52 BoogieIcfgContainer [2024-11-11 23:41:52,794 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 23:41:52,796 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 23:41:52,796 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 23:41:52,800 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 23:41:52,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 11:40:36" (1/3) ... [2024-11-11 23:41:52,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7467dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:41:52, skipping insertion in model container [2024-11-11 23:41:52,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:40:39" (2/3) ... [2024-11-11 23:41:52,802 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7467dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:41:52, skipping insertion in model container [2024-11-11 23:41:52,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:41:52" (3/3) ... [2024-11-11 23:41:52,804 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal47.c [2024-11-11 23:41:52,822 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 23:41:52,822 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 23:41:53,053 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 23:41:53,059 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;@2dc2e976, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 23:41:53,060 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 23:41:53,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 12466 states, 12464 states have (on average 1.5004011553273426) internal successors, (18701), 12465 states have internal predecessors, (18701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 23:41:53,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-11 23:41:53,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 23:41:53,120 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 23:41:53,121 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 23:41:53,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 23:41:53,129 INFO L85 PathProgramCache]: Analyzing trace with hash 337894216, now seen corresponding path program 1 times [2024-11-11 23:41:53,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 23:41:53,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371600262] [2024-11-11 23:41:53,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 23:41:53,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 23:41:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 23:41:54,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 23:41:54,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 23:41:54,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371600262] [2024-11-11 23:41:54,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371600262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 23:41:54,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 23:41:54,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-11 23:41:54,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139114943] [2024-11-11 23:41:54,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 23:41:54,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 23:41:54,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 23:41:54,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 23:41:54,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 23:41:54,699 INFO L87 Difference]: Start difference. First operand has 12466 states, 12464 states have (on average 1.5004011553273426) internal successors, (18701), 12465 states have internal predecessors, (18701), 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 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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)