./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem103_label42.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem103_label42.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd --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 2fd91fc32802b3b84cae99b85ac960832fbd9dc7b53546399650d691bec53ab1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:12:49,113 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:12:49,199 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:12:49,204 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:12:49,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:12:49,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:12:49,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:12:49,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:12:49,233 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:12:49,234 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:12:49,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:12:49,234 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:12:49,234 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:12:49,235 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:12:49,235 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:12:49,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:12:49,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:12:49,235 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:12:49,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:12:49,236 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:12:49,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:12:49,236 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:12:49,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:12:49,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:12:49,236 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:12:49,236 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:12:49,237 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:12:49,237 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:12:49,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:12:49,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:12:49,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:12:49,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:12:49,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:12:49,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:12:49,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:12:49,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:12:49,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:12:49,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:12:49,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:12:49,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:12:49,239 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:12:49,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:12:49,239 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd 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 -> 2fd91fc32802b3b84cae99b85ac960832fbd9dc7b53546399650d691bec53ab1 [2024-11-13 15:12:49,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:12:49,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:12:49,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:12:49,573 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:12:49,573 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:12:49,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-programs/Problem103_label42.c Unable to find full path for "g++" [2024-11-13 15:12:51,441 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:12:54,258 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:12:54,259 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/sv-benchmarks/c/eca-programs/Problem103_label42.c [2024-11-13 15:12:54,553 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd/data/4a1d9be13/fb3ff926d31646e9a2f3716b44535b06/FLAG51d7ff478 [2024-11-13 15:12:54,568 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd/data/4a1d9be13/fb3ff926d31646e9a2f3716b44535b06 [2024-11-13 15:12:54,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:12:54,572 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:12:54,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:12:54,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:12:54,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:12:54,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:12:54" (1/1) ... [2024-11-13 15:12:54,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7283a581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:12:54, skipping insertion in model container [2024-11-13 15:12:54,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:12:54" (1/1) ... [2024-11-13 15:12:55,848 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:13:20,545 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/sv-benchmarks/c/eca-programs/Problem103_label42.c[6304552,6304565] [2024-11-13 15:13:20,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:13:20,672 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:13:34,488 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/sv-benchmarks/c/eca-programs/Problem103_label42.c[6304552,6304565] [2024-11-13 15:13:34,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:13:38,617 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:13:38,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38 WrapperNode [2024-11-13 15:13:38,618 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:13:38,619 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:13:38,619 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:13:38,619 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:13:38,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38" (1/1) ... [2024-11-13 15:13:39,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38" (1/1) ... [2024-11-13 15:13:44,800 INFO L138 Inliner]: procedures = 88, calls = 82, calls flagged for inlining = 77, calls inlined = 77, statements flattened = 197898 [2024-11-13 15:13:44,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:13:44,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:13:44,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:13:44,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:13:44,808 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38" (1/1) ... [2024-11-13 15:13:44,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38" (1/1) ... [2024-11-13 15:13:45,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38" (1/1) ... [2024-11-13 15:13:45,840 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]. [2024-11-13 15:13:45,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38" (1/1) ... [2024-11-13 15:13:45,840 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38" (1/1) ... [2024-11-13 15:13:48,272 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38" (1/1) ... [2024-11-13 15:13:48,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38" (1/1) ... [2024-11-13 15:13:48,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38" (1/1) ... [2024-11-13 15:13:49,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38" (1/1) ... [2024-11-13 15:13:49,891 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:13:49,892 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:13:49,892 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:13:49,892 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:13:49,893 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38" (1/1) ... [2024-11-13 15:13:49,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:13:49,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:13:49,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:13:49,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42616ddd-b27e-4503-9987-25aab8737af4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:13:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:13:49,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:13:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:13:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:13:50,235 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:13:50,237 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:15:29,067 INFO L? ?]: Removed 16411 outVars from TransFormulas that were not future-live. [2024-11-13 15:15:29,068 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:15:29,320 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:15:29,321 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:15:29,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:15:29 BoogieIcfgContainer [2024-11-13 15:15:29,322 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:15:29,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:15:29,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:15:29,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:15:29,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:12:54" (1/3) ... [2024-11-13 15:15:29,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e31689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:15:29, skipping insertion in model container [2024-11-13 15:15:29,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:13:38" (2/3) ... [2024-11-13 15:15:29,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e31689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:15:29, skipping insertion in model container [2024-11-13 15:15:29,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:15:29" (3/3) ... [2024-11-13 15:15:29,334 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem103_label42.c [2024-11-13 15:15:29,350 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:15:29,353 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem103_label42.c that has 1 procedures, 20356 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:15:29,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:15:29,800 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;@7d763b7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:15:29,800 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:15:29,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 20356 states, 20354 states have (on average 1.902525302151911) internal successors, (38724), 20355 states have internal predecessors, (38724), 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)