./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/systemc/kundu1.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d 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/systemc/kundu1.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c114a15ea6b1c9b012290758a6a9559b9c02a944706c9768958a3bd9c86822a7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 10:05:42,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 10:05:42,287 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 10:05:42,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 10:05:42,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 10:05:42,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 10:05:42,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 10:05:42,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 10:05:42,305 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 10:05:42,305 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 10:05:42,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 10:05:42,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 10:05:42,305 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 10:05:42,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 10:05:42,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 10:05:42,306 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 10:05:42,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 10:05:42,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 10:05:42,307 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 10:05:42,307 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 10:05:42,307 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 10:05:42,307 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 10:05:42,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 10:05:42,307 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 10:05:42,307 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 10:05:42,307 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 10:05:42,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 10:05:42,307 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 ! overflow) ) 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 -> c114a15ea6b1c9b012290758a6a9559b9c02a944706c9768958a3bd9c86822a7 [2025-02-08 10:05:42,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 10:05:42,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 10:05:42,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 10:05:42,547 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 10:05:42,547 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 10:05:42,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/kundu1.cil.c [2025-02-08 10:05:43,696 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/899c278f6/25f2d3a3bb5b4d128e79e913c46f5645/FLAGb8cf596b5 [2025-02-08 10:05:43,922 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 10:05:43,923 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/systemc/kundu1.cil.c [2025-02-08 10:05:43,931 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/899c278f6/25f2d3a3bb5b4d128e79e913c46f5645/FLAGb8cf596b5 [2025-02-08 10:05:44,264 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/899c278f6/25f2d3a3bb5b4d128e79e913c46f5645 [2025-02-08 10:05:44,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 10:05:44,267 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 10:05:44,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 10:05:44,268 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 10:05:44,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 10:05:44,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64bee205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44, skipping insertion in model container [2025-02-08 10:05:44,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,288 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 10:05:44,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 10:05:44,439 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 10:05:44,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 10:05:44,485 INFO L204 MainTranslator]: Completed translation [2025-02-08 10:05:44,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44 WrapperNode [2025-02-08 10:05:44,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 10:05:44,486 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 10:05:44,486 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 10:05:44,486 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 10:05:44,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,514 INFO L138 Inliner]: procedures = 32, calls = 37, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 259 [2025-02-08 10:05:44,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 10:05:44,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 10:05:44,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 10:05:44,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 10:05:44,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,524 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,541 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]. [2025-02-08 10:05:44,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,548 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,550 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 10:05:44,556 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 10:05:44,556 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 10:05:44,556 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 10:05:44,556 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44" (1/1) ... [2025-02-08 10:05:44,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 10:05:44,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 10:05:44,584 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) [2025-02-08 10:05:44,586 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 [2025-02-08 10:05:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 10:05:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure error [2025-02-08 10:05:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2025-02-08 10:05:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-02-08 10:05:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-02-08 10:05:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-02-08 10:05:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-02-08 10:05:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-02-08 10:05:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-02-08 10:05:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-02-08 10:05:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-02-08 10:05:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 10:05:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-02-08 10:05:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-02-08 10:05:44,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 10:05:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 10:05:44,653 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 10:05:44,655 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 10:05:44,877 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L457: SUMMARY for call fire_delta_events(); srcloc: null [2025-02-08 10:05:44,877 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L449: havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_#t~nondet7#1, eval_~tmp~0#1, eval_~tmp___0~0#1, eval_~tmp___1~0#1, eval_~tmp___2~0#1;assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2; [2025-02-08 10:05:44,877 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L458: SUMMARY for call activate_threads(); srcloc: null [2025-02-08 10:05:44,877 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L417: assume -2147483648 <= stop_simulation_#t~ret10#1 && stop_simulation_#t~ret10#1 <= 2147483647;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret10#1;havoc stop_simulation_#t~ret10#1; [2025-02-08 10:05:44,877 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L417-1: SUMMARY for call stop_simulation_#t~ret10#1 := exists_runnable_thread(); srcloc: null [2025-02-08 10:05:44,877 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L475: start_simulation_#t~ret12#1 := stop_simulation_#res#1;havoc stop_simulation_#t~ret10#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;assume { :end_inline_stop_simulation } true;assume -2147483648 <= start_simulation_#t~ret12#1 && start_simulation_#t~ret12#1 <= 2147483647;start_simulation_~tmp___0~2#1 := start_simulation_#t~ret12#1;havoc start_simulation_#t~ret12#1; [2025-02-08 10:05:44,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L475-1: assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret10#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;havoc stop_simulation_~tmp~2#1;havoc stop_simulation_~__retres2~0#1; [2025-02-08 10:05:44,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L467: assume { :end_inline_fire_time_events } true; [2025-02-08 10:05:44,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L178: C_1_#t~ret4#1 := read_data_#res#1;havoc read_data_~i___0#1, read_data_~c~0#1, read_data_~__retres3~0#1;havoc read_data_#in~i___0#1;assume { :end_inline_read_data } true;assume -128 <= C_1_#t~ret4#1 && C_1_#t~ret4#1 <= 127;C_1_~c~1#1 := C_1_#t~ret4#1;havoc C_1_#t~ret4#1; [2025-02-08 10:05:44,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L459: SUMMARY for call reset_delta_events(); srcloc: null [2025-02-08 10:05:44,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L360: assume 1 == ~P_1_ev~0;~P_1_ev~0 := 2; [2025-02-08 10:05:44,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L360: assume !(1 == ~P_1_ev~0); [2025-02-08 10:05:44,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L96: havoc write_data_~i___0#1, write_data_~c#1;havoc write_data_#in~i___0#1, write_data_#in~c#1;assume { :end_inline_write_data } true; [2025-02-08 10:05:44,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L311: havoc C_1_#t~ret4#1, C_1_~c~1#1;assume { :end_inline_C_1 } true; [2025-02-08 10:05:44,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L468: assume { :begin_inline_reset_time_events } true; [2025-02-08 10:05:44,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L468-1: SUMMARY for call activate_threads(); srcloc: null [2025-02-08 10:05:44,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L179: assume 1 + ~i~0 <= 2147483647;~i~0 := 1 + ~i~0;~C_1_pc~0 := 2;~C_1_st~0 := 2; [2025-02-08 10:05:44,878 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L179: assume !(1 + ~i~0 <= 2147483647); [2025-02-08 10:05:44,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L179-1: assume 1 + ~i~0 >= -2147483648; [2025-02-08 10:05:44,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L179-1: assume !(1 + ~i~0 >= -2147483648); [2025-02-08 10:05:44,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L419: assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; [2025-02-08 10:05:44,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L419: assume !(0 != stop_simulation_~tmp~2#1);stop_simulation_~__retres2~0#1 := 1;stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; [2025-02-08 10:05:44,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L97: assume 1 + ~num~0 <= 2147483647;~num~0 := 1 + ~num~0;~P_1_pc~0 := 1;~P_1_st~0 := 2; [2025-02-08 10:05:44,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L97: assume !(1 + ~num~0 <= 2147483647); [2025-02-08 10:05:44,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L97-1: assume 1 + ~num~0 >= -2147483648; [2025-02-08 10:05:44,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L97-1: assume !(1 + ~num~0 >= -2147483648); [2025-02-08 10:05:44,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L477: assume 0 != start_simulation_~tmp___0~2#1; [2025-02-08 10:05:44,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L477: assume !(0 != start_simulation_~tmp___0~2#1); [2025-02-08 10:05:44,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L469: assume { :end_inline_reset_time_events } true; [2025-02-08 10:05:44,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L296: assume { :end_inline_P_1 } true; [2025-02-08 10:05:44,879 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L453: start_simulation_~kernel_st~0#1 := 3; [2025-02-08 10:05:44,880 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L453-1: SUMMARY for call update_channels(); srcloc: null [2025-02-08 10:05:44,880 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L462: assume -2147483648 <= start_simulation_#t~ret11#1 && start_simulation_#t~ret11#1 <= 2147483647;start_simulation_~tmp~3#1 := start_simulation_#t~ret11#1;havoc start_simulation_#t~ret11#1; [2025-02-08 10:05:44,880 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L462-1: SUMMARY for call start_simulation_#t~ret11#1 := exists_runnable_thread(); srcloc: null [2025-02-08 10:05:44,880 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L464: assume 0 == start_simulation_~tmp~3#1;start_simulation_~kernel_st~0#1 := 4;assume { :begin_inline_fire_time_events } true;~C_1_ev~0 := 1;~P_1_ev~0 := 1; [2025-02-08 10:05:44,880 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L464: assume !(0 == start_simulation_~tmp~3#1); [2025-02-08 10:05:44,880 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L365: assume 1 == ~C_1_ev~0;~C_1_ev~0 := 2; [2025-02-08 10:05:44,880 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L365: assume !(1 == ~C_1_ev~0); [2025-02-08 10:05:44,892 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2025-02-08 10:05:44,892 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 10:05:44,900 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 10:05:44,900 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 10:05:44,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 10:05:44 BoogieIcfgContainer [2025-02-08 10:05:44,901 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 10:05:44,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 10:05:44,902 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 10:05:44,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 10:05:44,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 10:05:44" (1/3) ... [2025-02-08 10:05:44,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a0025f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 10:05:44, skipping insertion in model container [2025-02-08 10:05:44,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 10:05:44" (2/3) ... [2025-02-08 10:05:44,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a0025f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 10:05:44, skipping insertion in model container [2025-02-08 10:05:44,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 10:05:44" (3/3) ... [2025-02-08 10:05:44,907 INFO L128 eAbstractionObserver]: Analyzing ICFG kundu1.cil.c [2025-02-08 10:05:44,917 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 10:05:44,919 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG kundu1.cil.c that has 7 procedures, 90 locations, 1 initial locations, 4 loop locations, and 8 error locations. [2025-02-08 10:05:44,960 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 10:05:44,971 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;@2af8db4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 10:05:44,971 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-08 10:05:44,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 55 states have (on average 1.6545454545454545) internal successors, (91), 77 states have internal predecessors, (91), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-08 10:05:44,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-02-08 10:05:44,978 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 10:05:44,979 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] [2025-02-08 10:05:44,979 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-02-08 10:05:44,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 10:05:44,983 INFO L85 PathProgramCache]: Analyzing trace with hash 19114370, now seen corresponding path program 1 times [2025-02-08 10:05:44,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 10:05:44,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233649788] [2025-02-08 10:05:44,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 10:05:44,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 10:05:45,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 10:05:45,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 10:05:45,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 10:05:45,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:05:45,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 10:05:45,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 10:05:45,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233649788] [2025-02-08 10:05:45,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233649788] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 10:05:45,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 10:05:45,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 10:05:45,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46183389] [2025-02-08 10:05:45,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 10:05:45,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 10:05:45,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 10:05:45,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 10:05:45,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 10:05:45,162 INFO L87 Difference]: Start difference. First operand has 90 states, 55 states have (on average 1.6545454545454545) internal successors, (91), 77 states have internal predecessors, (91), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-08 10:05:45,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 10:05:45,189 INFO L93 Difference]: Finished difference Result 167 states and 204 transitions. [2025-02-08 10:05:45,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 10:05:45,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2025-02-08 10:05:45,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 10:05:45,194 INFO L225 Difference]: With dead ends: 167 [2025-02-08 10:05:45,195 INFO L226 Difference]: Without dead ends: 56 [2025-02-08 10:05:45,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 10:05:45,199 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 94 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 10:05:45,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 96 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 10:05:45,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-02-08 10:05:45,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-02-08 10:05:45,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 45 states have internal predecessors, (54), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-08 10:05:45,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2025-02-08 10:05:45,227 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 45 [2025-02-08 10:05:45,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 10:05:45,228 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2025-02-08 10:05:45,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-08 10:05:45,228 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2025-02-08 10:05:45,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-02-08 10:05:45,229 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 10:05:45,229 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] [2025-02-08 10:05:45,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 10:05:45,229 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-02-08 10:05:45,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 10:05:45,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1442465629, now seen corresponding path program 1 times [2025-02-08 10:05:45,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 10:05:45,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463702596] [2025-02-08 10:05:45,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 10:05:45,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 10:05:45,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 10:05:45,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 10:05:45,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 10:05:45,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 10:05:45,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 10:05:45,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 10:05:45,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463702596] [2025-02-08 10:05:45,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463702596] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 10:05:45,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 10:05:45,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 10:05:45,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234600467] [2025-02-08 10:05:45,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 10:05:45,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 10:05:45,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 10:05:45,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 10:05:45,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 10:05:45,317 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-08 10:05:45,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 10:05:45,343 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2025-02-08 10:05:45,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 10:05:45,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2025-02-08 10:05:45,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 10:05:45,344 INFO L225 Difference]: With dead ends: 60 [2025-02-08 10:05:45,344 INFO L226 Difference]: Without dead ends: 0 [2025-02-08 10:05:45,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 10:05:45,345 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 26 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 10:05:45,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 66 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 10:05:45,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-08 10:05:45,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-08 10:05:45,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2025-02-08 10:05:45,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-08 10:05:45,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2025-02-08 10:05:45,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 10:05:45,346 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-08 10:05:45,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-08 10:05:45,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-08 10:05:45,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-08 10:05:45,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2025-02-08 10:05:45,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2025-02-08 10:05:45,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2025-02-08 10:05:45,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2025-02-08 10:05:45,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2025-02-08 10:05:45,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2025-02-08 10:05:45,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2025-02-08 10:05:45,349 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2025-02-08 10:05:45,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 10:05:45,351 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-08 10:05:45,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-08 10:05:45,499 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 10:05:45,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 10:05:45 BoogieIcfgContainer [2025-02-08 10:05:45,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 10:05:45,513 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 10:05:45,514 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 10:05:45,514 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 10:05:45,515 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 10:05:44" (3/4) ... [2025-02-08 10:05:45,516 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 10:05:45,518 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure activate_threads [2025-02-08 10:05:45,518 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure exists_runnable_thread [2025-02-08 10:05:45,518 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure fire_delta_events [2025-02-08 10:05:45,518 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure update_channels [2025-02-08 10:05:45,518 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure reset_delta_events [2025-02-08 10:05:45,519 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure error [2025-02-08 10:05:45,524 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-02-08 10:05:45,525 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-02-08 10:05:45,525 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 10:05:45,525 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 10:05:45,588 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 10:05:45,589 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 10:05:45,589 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 10:05:45,589 INFO L158 Benchmark]: Toolchain (without parser) took 1322.75ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 95.7MB in the end (delta: 17.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2025-02-08 10:05:45,590 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 10:05:45,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.30ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 99.5MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 10:05:45,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.18ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 97.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 10:05:45,590 INFO L158 Benchmark]: Boogie Preprocessor took 38.59ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 96.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 10:05:45,590 INFO L158 Benchmark]: IcfgBuilder took 345.14ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 76.1MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 10:05:45,591 INFO L158 Benchmark]: TraceAbstraction took 610.40ms. Allocated memory is still 142.6MB. Free memory was 75.1MB in the beginning and 103.5MB in the end (delta: -28.4MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2025-02-08 10:05:45,591 INFO L158 Benchmark]: Witness Printer took 75.47ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 95.7MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 10:05:45,592 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.30ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 99.5MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.18ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 97.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.59ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 96.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 345.14ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 76.1MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 610.40ms. Allocated memory is still 142.6MB. Free memory was 75.1MB in the beginning and 103.5MB in the end (delta: -28.4MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * Witness Printer took 75.47ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 95.7MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 179]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 179]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 169]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 169]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 160]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 160]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 97]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 90 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 135 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 125 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 156]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 93]: Location Invariant Derived location invariant: (P_1_i == 1) - InvariantResult [Line: 279]: Location Invariant Derived location invariant: ((P_1_st == 0) && (P_1_i == 1)) - InvariantResult [Line: 445]: Location Invariant Derived location invariant: ((P_1_st == 0) && (P_1_i == 1)) RESULT: Ultimate proved your program to be correct! [2025-02-08 10:05:45,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE