./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal56.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal56.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 0510760edfea569f0293a9929809f32c02fca807b81c2a2bdd9c5072553bafad --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 06:54:56,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 06:54:56,207 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 06:54:56,213 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 06:54:56,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 06:54:56,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 06:54:56,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 06:54:56,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 06:54:56,233 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 06:54:56,233 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 06:54:56,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 06:54:56,234 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 06:54:56,234 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 06:54:56,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 06:54:56,235 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 06:54:56,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 06:54:56,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 06:54:56,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 06:54:56,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 06:54:56,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 06:54:56,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 06:54:56,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 06:54:56,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 06:54:56,236 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 06:54:56,236 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 06:54:56,236 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 06:54:56,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 06:54:56,236 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 06:54:56,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 06:54:56,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 06:54:56,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 06:54:56,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 06:54:56,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 06:54:56,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 06:54:56,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 06:54:56,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 06:54:56,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 06:54:56,237 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 06:54:56,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 06:54:56,237 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 06:54:56,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 06:54:56,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 06:54:56,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 06:54:56,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 06:54:56,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 06:54:56,238 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 0510760edfea569f0293a9929809f32c02fca807b81c2a2bdd9c5072553bafad [2025-01-09 06:54:56,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 06:54:56,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 06:54:56,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 06:54:56,440 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 06:54:56,440 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 06:54:56,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal56.c [2025-01-09 06:54:57,539 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4cd636a4a/c580351f995a4cad856683437f4c7415/FLAGba50d4c9a [2025-01-09 06:54:58,145 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 06:54:58,146 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal56.c [2025-01-09 06:54:58,186 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4cd636a4a/c580351f995a4cad856683437f4c7415/FLAGba50d4c9a [2025-01-09 06:54:58,628 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4cd636a4a/c580351f995a4cad856683437f4c7415 [2025-01-09 06:54:58,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 06:54:58,631 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 06:54:58,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 06:54:58,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 06:54:58,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 06:54:58,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:54:58" (1/1) ... [2025-01-09 06:54:58,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec176d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:54:58, skipping insertion in model container [2025-01-09 06:54:58,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:54:58" (1/1) ... [2025-01-09 06:54:58,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 06:54:59,023 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal56.c[1245,1258] [2025-01-09 06:55:00,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 06:55:00,150 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 06:55:00,158 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal56.c[1245,1258] [2025-01-09 06:55:00,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 06:55:00,814 INFO L204 MainTranslator]: Completed translation [2025-01-09 06:55:00,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00 WrapperNode [2025-01-09 06:55:00,815 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 06:55:00,816 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 06:55:00,816 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 06:55:00,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 06:55:00,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (1/1) ... [2025-01-09 06:55:01,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (1/1) ... [2025-01-09 06:55:04,437 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42737 [2025-01-09 06:55:04,439 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 06:55:04,440 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 06:55:04,440 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 06:55:04,440 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 06:55:04,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (1/1) ... [2025-01-09 06:55:04,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (1/1) ... [2025-01-09 06:55:05,422 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (1/1) ... [2025-01-09 06:55:05,909 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]. [2025-01-09 06:55:05,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (1/1) ... [2025-01-09 06:55:05,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (1/1) ... [2025-01-09 06:55:06,802 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (1/1) ... [2025-01-09 06:55:07,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (1/1) ... [2025-01-09 06:55:07,129 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (1/1) ... [2025-01-09 06:55:07,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (1/1) ... [2025-01-09 06:55:07,492 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (1/1) ... [2025-01-09 06:55:08,210 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 06:55:08,211 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 06:55:08,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 06:55:08,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 06:55:08,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (1/1) ... [2025-01-09 06:55:08,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 06:55:08,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 06:55:08,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 06:55:08,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 06:55:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 06:55:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 06:55:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 06:55:08,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 06:55:08,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 06:55:09,833 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 06:55:09,835 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 06:56:31,513 INFO L? ?]: Removed 23998 outVars from TransFormulas that were not future-live. [2025-01-09 06:56:31,513 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 06:56:31,640 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 06:56:31,640 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 06:56:31,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:56:31 BoogieIcfgContainer [2025-01-09 06:56:31,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 06:56:31,642 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 06:56:31,643 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 06:56:31,646 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 06:56:31,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 06:54:58" (1/3) ... [2025-01-09 06:56:31,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6463aeaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:56:31, skipping insertion in model container [2025-01-09 06:56:31,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:55:00" (2/3) ... [2025-01-09 06:56:31,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6463aeaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:56:31, skipping insertion in model container [2025-01-09 06:56:31,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:56:31" (3/3) ... [2025-01-09 06:56:31,649 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal56.c [2025-01-09 06:56:31,661 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 06:56:31,663 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cal56.c that has 1 procedures, 14197 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 06:56:31,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 06:56:31,873 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;@c06a598, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 06:56:31,873 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 06:56:31,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 14197 states, 14195 states have (on average 1.5005988023952095) internal successors, (21301), 14196 states have internal predecessors, (21301), 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) [2025-01-09 06:56:31,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2025-01-09 06:56:31,924 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 06:56:31,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 06:56:31,925 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 06:56:31,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 06:56:31,930 INFO L85 PathProgramCache]: Analyzing trace with hash -871207646, now seen corresponding path program 1 times [2025-01-09 06:56:31,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 06:56:31,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928155722] [2025-01-09 06:56:31,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 06:56:31,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 06:56:32,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 247 statements into 1 equivalence classes. [2025-01-09 06:56:32,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 247 of 247 statements. [2025-01-09 06:56:32,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 06:56:32,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat