./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/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_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd --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 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:36:08,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:36:09,067 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 13:36:09,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:36:09,075 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:36:09,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:36:09,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:36:09,131 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:36:09,132 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:36:09,132 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:36:09,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:36:09,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:36:09,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:36:09,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:36:09,134 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:36:09,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:36:09,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:36:09,134 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:36:09,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:36:09,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:36:09,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:36:09,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:36:09,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:36:09,135 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:36:09,135 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:36:09,135 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 13:36:09,135 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:36:09,136 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:36:09,136 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:36:09,136 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:36:09,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:36:09,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:36:09,139 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:36:09,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:36:09,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:36:09,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:36:09,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:36:09,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:36:09,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:36:09,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:36:09,141 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:36:09,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:36:09,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:36:09,142 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:36:09,142 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_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/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 ! 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 -> 4f10ff474b4a5b0ac51f5a2282c4b94cd510edf14cc1176b49d640deffa746e5 [2024-11-13 13:36:09,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:36:09,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:36:09,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:36:09,582 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:36:09,582 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:36:09,584 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i Unable to find full path for "g++" [2024-11-13 13:36:11,817 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:36:12,335 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:36:12,336 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/sv-benchmarks/c/goblint-regression/04-mutex_43-thread_create_nr.i [2024-11-13 13:36:12,354 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/data/ef69ee0a3/5f5c70fb878940f48964968ee95e1b6e/FLAGb9d18fbeb [2024-11-13 13:36:12,383 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/data/ef69ee0a3/5f5c70fb878940f48964968ee95e1b6e [2024-11-13 13:36:12,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:36:12,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:36:12,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:36:12,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:36:12,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:36:12,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:36:12" (1/1) ... [2024-11-13 13:36:12,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94a3b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:12, skipping insertion in model container [2024-11-13 13:36:12,402 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:36:12" (1/1) ... [2024-11-13 13:36:12,466 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:36:13,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:36:13,092 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:36:13,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:36:13,236 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:36:13,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13 WrapperNode [2024-11-13 13:36:13,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:36:13,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:36:13,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:36:13,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:36:13,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13" (1/1) ... [2024-11-13 13:36:13,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13" (1/1) ... [2024-11-13 13:36:13,314 INFO L138 Inliner]: procedures = 265, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 92 [2024-11-13 13:36:13,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:36:13,316 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:36:13,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:36:13,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:36:13,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13" (1/1) ... [2024-11-13 13:36:13,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13" (1/1) ... [2024-11-13 13:36:13,334 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13" (1/1) ... [2024-11-13 13:36:13,357 INFO L175 MemorySlicer]: Split 8 memory accesses to 1 slices as follows [8]. 100 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [8]. The 0 writes are split as follows [0]. [2024-11-13 13:36:13,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13" (1/1) ... [2024-11-13 13:36:13,362 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13" (1/1) ... [2024-11-13 13:36:13,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13" (1/1) ... [2024-11-13 13:36:13,376 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13" (1/1) ... [2024-11-13 13:36:13,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13" (1/1) ... [2024-11-13 13:36:13,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13" (1/1) ... [2024-11-13 13:36:13,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:36:13,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:36:13,392 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:36:13,393 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:36:13,394 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13" (1/1) ... [2024-11-13 13:36:13,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:36:13,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:36:13,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:36:13,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:36:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 13:36:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 13:36:13,482 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 13:36:13,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:36:13,482 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 13:36:13,483 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 13:36:13,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:36:13,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:36:13,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:36:13,485 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 13:36:13,644 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:36:13,647 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:36:13,944 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 13:36:13,944 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:36:14,530 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:36:14,530 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:36:14,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:36:14 BoogieIcfgContainer [2024-11-13 13:36:14,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:36:14,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:36:14,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:36:14,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:36:14,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:36:12" (1/3) ... [2024-11-13 13:36:14,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bab716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:36:14, skipping insertion in model container [2024-11-13 13:36:14,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:36:13" (2/3) ... [2024-11-13 13:36:14,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bab716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:36:14, skipping insertion in model container [2024-11-13 13:36:14,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:36:14" (3/3) ... [2024-11-13 13:36:14,545 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_43-thread_create_nr.i [2024-11-13 13:36:14,567 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:36:14,570 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_43-thread_create_nr.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2024-11-13 13:36:14,570 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 13:36:14,621 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 13:36:14,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 25 places, 21 transitions, 46 flow [2024-11-13 13:36:14,728 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-11-13 13:36:14,733 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:36:14,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 20 events. 0/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 18 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-13 13:36:14,736 INFO L82 GeneralOperation]: Start removeDead. Operand has 25 places, 21 transitions, 46 flow [2024-11-13 13:36:14,741 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2024-11-13 13:36:14,753 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:36:14,768 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;@10e945fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:36:14,768 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-13 13:36:14,773 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:36:14,774 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-13 13:36:14,774 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:36:14,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:36:14,775 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-13 13:36:14,775 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-13 13:36:14,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:36:14,781 INFO L85 PathProgramCache]: Analyzing trace with hash 8349, now seen corresponding path program 1 times [2024-11-13 13:36:14,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:36:14,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996678918] [2024-11-13 13:36:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:36:14,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:36:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:36:15,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:36:15,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:36:15,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996678918] [2024-11-13 13:36:15,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996678918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:36:15,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:36:15,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 13:36:15,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524946652] [2024-11-13 13:36:15,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:36:15,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:36:15,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:36:15,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:36:15,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:36:15,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 21 [2024-11-13 13:36:15,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:36:15,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:36:15,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 21 [2024-11-13 13:36:15,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:36:15,418 INFO L124 PetriNetUnfolderBase]: 12/54 cut-off events. [2024-11-13 13:36:15,418 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:36:15,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 54 events. 12/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 184 event pairs, 12 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 82. Up to 35 conditions per place. [2024-11-13 13:36:15,421 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 9 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2024-11-13 13:36:15,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 18 transitions, 61 flow [2024-11-13 13:36:15,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:36:15,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:36:15,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 37 transitions. [2024-11-13 13:36:15,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2024-11-13 13:36:15,439 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 3 states and 37 transitions. [2024-11-13 13:36:15,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 18 transitions, 61 flow [2024-11-13 13:36:15,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 18 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 13:36:15,450 INFO L231 Difference]: Finished difference. Result has 23 places, 18 transitions, 42 flow [2024-11-13 13:36:15,455 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=18} [2024-11-13 13:36:15,461 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2024-11-13 13:36:15,461 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 18 transitions, 42 flow [2024-11-13 13:36:15,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:36:15,462 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:36:15,462 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 13:36:15,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:36:15,462 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-13 13:36:15,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:36:15,463 INFO L85 PathProgramCache]: Analyzing trace with hash -871708840, now seen corresponding path program 1 times [2024-11-13 13:36:15,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:36:15,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161086079] [2024-11-13 13:36:15,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:36:15,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:36:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:36:15,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:36:15,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:36:15,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161086079] [2024-11-13 13:36:15,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161086079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:36:15,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:36:15,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:36:15,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546288037] [2024-11-13 13:36:15,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:36:15,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:36:15,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:36:15,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:36:15,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:36:15,718 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 21 [2024-11-13 13:36:15,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 18 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:36:15,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:36:15,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 21 [2024-11-13 13:36:15,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:36:15,804 INFO L124 PetriNetUnfolderBase]: 12/45 cut-off events. [2024-11-13 13:36:15,805 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 13:36:15,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 45 events. 12/45 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs, 4 based on Foata normal form. 5/44 useless extension candidates. Maximal degree in co-relation 76. Up to 18 conditions per place. [2024-11-13 13:36:15,807 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 11 selfloop transitions, 3 changer transitions 0/21 dead transitions. [2024-11-13 13:36:15,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 21 transitions, 76 flow [2024-11-13 13:36:15,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:36:15,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:36:15,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 55 transitions. [2024-11-13 13:36:15,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2024-11-13 13:36:15,812 INFO L175 Difference]: Start difference. First operand has 23 places, 18 transitions, 42 flow. Second operand 4 states and 55 transitions. [2024-11-13 13:36:15,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 21 transitions, 76 flow [2024-11-13 13:36:15,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 72 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:36:15,814 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 42 flow [2024-11-13 13:36:15,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2024-11-13 13:36:15,817 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, -1 predicate places. [2024-11-13 13:36:15,818 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 42 flow [2024-11-13 13:36:15,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:36:15,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:36:15,819 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:36:15,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:36:15,820 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-13 13:36:15,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:36:15,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1253170015, now seen corresponding path program 1 times [2024-11-13 13:36:15,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:36:15,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430231276] [2024-11-13 13:36:15,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:36:15,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:36:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:36:16,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:36:16,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:36:16,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430231276] [2024-11-13 13:36:16,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430231276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:36:16,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:36:16,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:36:16,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334496130] [2024-11-13 13:36:16,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:36:16,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:36:16,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:36:16,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:36:16,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:36:16,049 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 21 [2024-11-13 13:36:16,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:36:16,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:36:16,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 21 [2024-11-13 13:36:16,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:36:16,154 INFO L124 PetriNetUnfolderBase]: 8/36 cut-off events. [2024-11-13 13:36:16,154 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-13 13:36:16,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 36 events. 8/36 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 68 event pairs, 0 based on Foata normal form. 5/39 useless extension candidates. Maximal degree in co-relation 64. Up to 10 conditions per place. [2024-11-13 13:36:16,155 INFO L140 encePairwiseOnDemand]: 17/21 looper letters, 5 selfloop transitions, 3 changer transitions 9/24 dead transitions. [2024-11-13 13:36:16,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 24 transitions, 90 flow [2024-11-13 13:36:16,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:36:16,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:36:16,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 58 transitions. [2024-11-13 13:36:16,156 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2024-11-13 13:36:16,156 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 42 flow. Second operand 4 states and 58 transitions. [2024-11-13 13:36:16,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 24 transitions, 90 flow [2024-11-13 13:36:16,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 24 transitions, 84 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 13:36:16,158 INFO L231 Difference]: Finished difference. Result has 22 places, 13 transitions, 34 flow [2024-11-13 13:36:16,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=34, PETRI_PLACES=22, PETRI_TRANSITIONS=13} [2024-11-13 13:36:16,163 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, -2 predicate places. [2024-11-13 13:36:16,163 INFO L471 AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 34 flow [2024-11-13 13:36:16,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:36:16,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:36:16,164 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:36:16,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:36:16,164 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-13 13:36:16,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:36:16,165 INFO L85 PathProgramCache]: Analyzing trace with hash -193197865, now seen corresponding path program 1 times [2024-11-13 13:36:16,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:36:16,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853855005] [2024-11-13 13:36:16,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:36:16,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:36:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:36:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:36:16,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:36:16,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853855005] [2024-11-13 13:36:16,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853855005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:36:16,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:36:16,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:36:16,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910433611] [2024-11-13 13:36:16,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:36:16,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:36:16,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:36:16,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:36:16,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:36:16,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 21 [2024-11-13 13:36:16,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 13 transitions, 34 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:36:16,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:36:16,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 21 [2024-11-13 13:36:16,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:36:16,489 INFO L124 PetriNetUnfolderBase]: 4/22 cut-off events. [2024-11-13 13:36:16,490 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-13 13:36:16,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 22 events. 4/22 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 4 based on Foata normal form. 2/22 useless extension candidates. Maximal degree in co-relation 36. Up to 14 conditions per place. [2024-11-13 13:36:16,491 INFO L140 encePairwiseOnDemand]: 18/21 looper letters, 5 selfloop transitions, 2 changer transitions 0/12 dead transitions. [2024-11-13 13:36:16,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 12 transitions, 46 flow [2024-11-13 13:36:16,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:36:16,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:36:16,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2024-11-13 13:36:16,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2024-11-13 13:36:16,493 INFO L175 Difference]: Start difference. First operand has 22 places, 13 transitions, 34 flow. Second operand 4 states and 40 transitions. [2024-11-13 13:36:16,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 12 transitions, 46 flow [2024-11-13 13:36:16,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 12 transitions, 40 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 13:36:16,495 INFO L231 Difference]: Finished difference. Result has 18 places, 12 transitions, 30 flow [2024-11-13 13:36:16,495 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=26, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=30, PETRI_PLACES=18, PETRI_TRANSITIONS=12} [2024-11-13 13:36:16,496 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, -6 predicate places. [2024-11-13 13:36:16,496 INFO L471 AbstractCegarLoop]: Abstraction has has 18 places, 12 transitions, 30 flow [2024-11-13 13:36:16,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:36:16,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:36:16,496 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:36:16,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:36:16,497 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-13 13:36:16,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:36:16,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1694166249, now seen corresponding path program 1 times [2024-11-13 13:36:16,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:36:16,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364548957] [2024-11-13 13:36:16,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:36:16,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:36:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:36:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:36:16,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:36:16,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364548957] [2024-11-13 13:36:16,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364548957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:36:16,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:36:16,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:36:16,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560417578] [2024-11-13 13:36:16,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:36:16,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:36:16,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:36:16,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:36:16,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:36:16,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 21 [2024-11-13 13:36:16,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 12 transitions, 30 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:36:16,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:36:16,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 21 [2024-11-13 13:36:16,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:36:16,705 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2024-11-13 13:36:16,705 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 13:36:16,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 16 events. 2/16 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 2 based on Foata normal form. 2/17 useless extension candidates. Maximal degree in co-relation 23. Up to 9 conditions per place. [2024-11-13 13:36:16,706 INFO L140 encePairwiseOnDemand]: 18/21 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2024-11-13 13:36:16,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 11 transitions, 40 flow [2024-11-13 13:36:16,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:36:16,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:36:16,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2024-11-13 13:36:16,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2024-11-13 13:36:16,708 INFO L175 Difference]: Start difference. First operand has 18 places, 12 transitions, 30 flow. Second operand 4 states and 39 transitions. [2024-11-13 13:36:16,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 11 transitions, 40 flow [2024-11-13 13:36:16,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 11 transitions, 37 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:36:16,708 INFO L231 Difference]: Finished difference. Result has 18 places, 0 transitions, 0 flow [2024-11-13 13:36:16,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=21, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=18, PETRI_TRANSITIONS=0} [2024-11-13 13:36:16,709 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, -6 predicate places. [2024-11-13 13:36:16,709 INFO L471 AbstractCegarLoop]: Abstraction has has 18 places, 0 transitions, 0 flow [2024-11-13 13:36:16,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:36:16,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-11-13 13:36:16,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-11-13 13:36:16,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-11-13 13:36:16,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-11-13 13:36:16,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-13 13:36:16,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-11-13 13:36:16,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-11-13 13:36:16,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-11-13 13:36:16,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-11-13 13:36:16,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:36:16,715 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-13 13:36:16,722 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 13:36:16,722 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:36:16,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:36:16 BasicIcfg [2024-11-13 13:36:16,732 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:36:16,732 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:36:16,732 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:36:16,733 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:36:16,734 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:36:14" (3/4) ... [2024-11-13 13:36:16,737 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 13:36:16,742 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-13 13:36:16,754 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 91 nodes and edges [2024-11-13 13:36:16,755 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-13 13:36:16,755 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 13:36:16,755 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 13:36:16,871 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:36:16,872 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 13:36:16,872 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:36:16,875 INFO L158 Benchmark]: Toolchain (without parser) took 4484.58ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 79.8MB in the end (delta: 37.1MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2024-11-13 13:36:16,876 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:36:16,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 846.90ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 88.8MB in the end (delta: 28.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 13:36:16,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.83ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 86.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:36:16,880 INFO L158 Benchmark]: Boogie Preprocessor took 71.61ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 84.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:36:16,881 INFO L158 Benchmark]: RCFGBuilder took 1142.17ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 76.2MB in the end (delta: 8.6MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2024-11-13 13:36:16,881 INFO L158 Benchmark]: TraceAbstraction took 2197.94ms. Allocated memory is still 142.6MB. Free memory was 76.2MB in the beginning and 84.8MB in the end (delta: -8.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:36:16,882 INFO L158 Benchmark]: Witness Printer took 139.85ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 79.8MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:36:16,886 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 846.90ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 88.8MB in the end (delta: 28.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.83ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 86.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 71.61ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 84.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1142.17ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 76.2MB in the end (delta: 8.6MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2197.94ms. Allocated memory is still 142.6MB. Free memory was 76.2MB in the beginning and 84.8MB in the end (delta: -8.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 139.85ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 79.8MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 930]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 33 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 3 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 13:36:16,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e1a0db-68ef-4769-a468-1d19ad5fe2e0/bin/uautomizer-verify-qhAvR1uOyd/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