./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem102_label25.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_29789eeb-7f9e-4223-ae9b-82bf945e3f30/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29789eeb-7f9e-4223-ae9b-82bf945e3f30/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_29789eeb-7f9e-4223-ae9b-82bf945e3f30/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29789eeb-7f9e-4223-ae9b-82bf945e3f30/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem102_label25.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29789eeb-7f9e-4223-ae9b-82bf945e3f30/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_29789eeb-7f9e-4223-ae9b-82bf945e3f30/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 820366b67b7eed0ab86b4d0158450a5f8f5e2cb4fa1abd091efc1b23bdc9babd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:50:31,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:50:31,158 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29789eeb-7f9e-4223-ae9b-82bf945e3f30/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 12:50:31,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:50:31,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:50:31,186 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:50:31,187 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:50:31,187 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:50:31,187 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:50:31,187 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:50:31,187 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:50:31,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:50:31,188 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:50:31,188 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:50:31,188 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:50:31,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:50:31,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:50:31,189 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:50:31,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:50:31,189 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:50:31,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:50:31,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:50:31,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:50:31,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:50:31,189 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:50:31,189 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:50:31,189 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:50:31,190 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:50:31,190 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:50:31,190 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:50:31,190 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:50:31,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:50:31,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:50:31,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:50:31,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:50:31,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:50:31,191 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:50:31,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:50:31,191 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:50:31,191 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:50:31,191 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:50:31,191 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:50:31,191 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_29789eeb-7f9e-4223-ae9b-82bf945e3f30/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 -> 820366b67b7eed0ab86b4d0158450a5f8f5e2cb4fa1abd091efc1b23bdc9babd [2024-11-13 12:50:31,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:50:31,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:50:31,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:50:31,568 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:50:31,569 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:50:31,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29789eeb-7f9e-4223-ae9b-82bf945e3f30/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-programs/Problem102_label25.c Unable to find full path for "g++" [2024-11-13 12:50:33,607 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:50:36,371 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:50:36,372 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29789eeb-7f9e-4223-ae9b-82bf945e3f30/sv-benchmarks/c/eca-programs/Problem102_label25.c [2024-11-13 12:50:36,656 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29789eeb-7f9e-4223-ae9b-82bf945e3f30/bin/uautomizer-verify-qhAvR1uOyd/data/132cb28a9/2a5ef7dd9fd64a439f761ccd7e7cb0fa/FLAGa1bba783e [2024-11-13 12:50:36,674 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29789eeb-7f9e-4223-ae9b-82bf945e3f30/bin/uautomizer-verify-qhAvR1uOyd/data/132cb28a9/2a5ef7dd9fd64a439f761ccd7e7cb0fa [2024-11-13 12:50:36,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:50:36,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:50:36,681 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:50:36,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:50:36,687 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:50:36,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:50:36" (1/1) ... [2024-11-13 12:50:36,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ebcc56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:36, skipping insertion in model container [2024-11-13 12:50:36,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:50:36" (1/1) ... [2024-11-13 12:50:38,048 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:51:02,636 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_29789eeb-7f9e-4223-ae9b-82bf945e3f30/sv-benchmarks/c/eca-programs/Problem102_label25.c[5711042,5711055] [2024-11-13 12:51:02,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:51:02,854 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:51:15,894 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_29789eeb-7f9e-4223-ae9b-82bf945e3f30/sv-benchmarks/c/eca-programs/Problem102_label25.c[5711042,5711055] [2024-11-13 12:51:15,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:51:20,435 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:51:20,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20 WrapperNode [2024-11-13 12:51:20,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:51:20,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:51:20,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:51:20,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:51:20,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20" (1/1) ... [2024-11-13 12:51:21,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20" (1/1) ... [2024-11-13 12:51:26,048 INFO L138 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184376 [2024-11-13 12:51:26,049 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:51:26,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:51:26,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:51:26,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:51:26,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20" (1/1) ... [2024-11-13 12:51:26,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20" (1/1) ... [2024-11-13 12:51:26,672 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20" (1/1) ... [2024-11-13 12:51:27,276 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 12:51:27,277 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20" (1/1) ... [2024-11-13 12:51:27,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20" (1/1) ... [2024-11-13 12:51:29,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20" (1/1) ... [2024-11-13 12:51:30,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20" (1/1) ... [2024-11-13 12:51:31,106 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20" (1/1) ... [2024-11-13 12:51:31,269 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20" (1/1) ... [2024-11-13 12:51:31,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:51:31,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:51:31,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:51:31,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:51:31,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20" (1/1) ... [2024-11-13 12:51:31,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:51:31,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29789eeb-7f9e-4223-ae9b-82bf945e3f30/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:51:31,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29789eeb-7f9e-4223-ae9b-82bf945e3f30/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:51:31,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29789eeb-7f9e-4223-ae9b-82bf945e3f30/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:51:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:51:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:51:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:51:32,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:51:32,237 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:51:32,240 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:53:13,765 INFO L? ?]: Removed 18122 outVars from TransFormulas that were not future-live. [2024-11-13 12:53:13,766 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:53:14,096 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:53:14,097 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 12:53:14,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:53:14 BoogieIcfgContainer [2024-11-13 12:53:14,099 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:53:14,103 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:53:14,103 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:53:14,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:53:14,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:50:36" (1/3) ... [2024-11-13 12:53:14,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625f5a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:53:14, skipping insertion in model container [2024-11-13 12:53:14,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:51:20" (2/3) ... [2024-11-13 12:53:14,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625f5a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:53:14, skipping insertion in model container [2024-11-13 12:53:14,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:53:14" (3/3) ... [2024-11-13 12:53:14,114 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem102_label25.c [2024-11-13 12:53:14,135 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:53:14,138 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem102_label25.c that has 1 procedures, 23215 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 12:53:14,688 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:53:14,708 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;@4e369205, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:53:14,708 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 12:53:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 23215 states, 23213 states have (on average 1.8828673588075646) internal successors, (43707), 23214 states have internal predecessors, (43707), 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)