./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:38:52,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:38:52,080 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 16:38:52,085 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:38:52,086 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:38:52,110 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:38:52,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:38:52,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:38:52,112 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:38:52,112 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:38:52,112 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 16:38:52,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 16:38:52,113 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:38:52,115 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:38:52,116 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:38:52,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:38:52,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 16:38:52,117 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 16:38:52,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:38:52,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 16:38:52,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:38:52,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 16:38:52,122 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 16:38:52,122 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 16:38:52,122 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:38:52,123 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 16:38:52,123 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:38:52,123 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 16:38:52,123 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:38:52,123 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:38:52,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:38:52,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:38:52,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 16:38:52,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 16:38:52,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:38:52,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:38:52,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 16:38:52,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 16:38:52,129 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:38:52,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 16:38:52,129 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 16:38:52,130 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 16:38:52,130 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 16:38:52,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 16:38:52,130 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2024-10-13 16:38:52,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:38:52,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:38:52,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:38:52,381 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:38:52,381 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:38:52,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-10-13 16:38:53,787 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:38:54,123 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:38:54,125 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-10-13 16:38:54,152 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e90fa8235/d29bcdd5373c4225a82252410b562d32/FLAGc36a619e3 [2024-10-13 16:38:54,169 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e90fa8235/d29bcdd5373c4225a82252410b562d32 [2024-10-13 16:38:54,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:38:54,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:38:54,176 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:38:54,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:38:54,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:38:54,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:38:54" (1/1) ... [2024-10-13 16:38:54,185 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40af3f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:54, skipping insertion in model container [2024-10-13 16:38:54,185 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:38:54" (1/1) ... [2024-10-13 16:38:54,242 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:38:54,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:38:54,904 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:38:54,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:38:55,097 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:38:55,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55 WrapperNode [2024-10-13 16:38:55,097 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:38:55,098 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:38:55,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:38:55,099 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:38:55,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55" (1/1) ... [2024-10-13 16:38:55,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55" (1/1) ... [2024-10-13 16:38:55,206 INFO L138 Inliner]: procedures = 429, calls = 135, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 493 [2024-10-13 16:38:55,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:38:55,207 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:38:55,207 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:38:55,208 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:38:55,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55" (1/1) ... [2024-10-13 16:38:55,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55" (1/1) ... [2024-10-13 16:38:55,233 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55" (1/1) ... [2024-10-13 16:38:55,263 INFO L175 MemorySlicer]: Split 78 memory accesses to 6 slices as follows [2, 5, 6, 5, 2, 58]. 74 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 26 writes are split as follows [0, 3, 2, 3, 1, 17]. [2024-10-13 16:38:55,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55" (1/1) ... [2024-10-13 16:38:55,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55" (1/1) ... [2024-10-13 16:38:55,280 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55" (1/1) ... [2024-10-13 16:38:55,288 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55" (1/1) ... [2024-10-13 16:38:55,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55" (1/1) ... [2024-10-13 16:38:55,295 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55" (1/1) ... [2024-10-13 16:38:55,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:38:55,302 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:38:55,302 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:38:55,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:38:55,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55" (1/1) ... [2024-10-13 16:38:55,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:38:55,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:38:55,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 16:38:55,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 16:38:55,390 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2024-10-13 16:38:55,391 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2024-10-13 16:38:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 16:38:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 16:38:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 16:38:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 16:38:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 16:38:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 16:38:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 16:38:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 16:38:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 16:38:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 16:38:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 16:38:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 16:38:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 16:38:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-13 16:38:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-13 16:38:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-13 16:38:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:38:55,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:38:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 16:38:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 16:38:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 16:38:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 16:38:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-13 16:38:55,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-13 16:38:55,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-13 16:38:55,394 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2024-10-13 16:38:55,394 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2024-10-13 16:38:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 16:38:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 16:38:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 16:38:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 16:38:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 16:38:55,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 16:38:55,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 16:38:55,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 16:38:55,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 16:38:55,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 16:38:55,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 16:38:55,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 16:38:55,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 16:38:55,399 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 16:38:55,589 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:38:55,591 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:38:56,281 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 16:38:56,281 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:38:56,745 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:38:56,746 INFO L314 CfgBuilder]: Removed 13 assume(true) statements. [2024-10-13 16:38:56,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:38:56 BoogieIcfgContainer [2024-10-13 16:38:56,746 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:38:56,749 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 16:38:56,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 16:38:56,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 16:38:56,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:38:54" (1/3) ... [2024-10-13 16:38:56,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498e5a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:38:56, skipping insertion in model container [2024-10-13 16:38:56,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:55" (2/3) ... [2024-10-13 16:38:56,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498e5a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:38:56, skipping insertion in model container [2024-10-13 16:38:56,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:38:56" (3/3) ... [2024-10-13 16:38:56,756 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2024-10-13 16:38:56,776 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 16:38:56,776 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-10-13 16:38:56,777 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 16:38:56,935 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-13 16:38:56,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 143 transitions, 306 flow [2024-10-13 16:38:57,078 INFO L124 PetriNetUnfolderBase]: 72/346 cut-off events. [2024-10-13 16:38:57,079 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-13 16:38:57,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 346 events. 72/346 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1797 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 187. Up to 16 conditions per place. [2024-10-13 16:38:57,090 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 143 transitions, 306 flow [2024-10-13 16:38:57,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 143 transitions, 306 flow [2024-10-13 16:38:57,109 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:38:57,118 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;@a85179e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:38:57,118 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-13 16:38:57,130 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:38:57,130 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-10-13 16:38:57,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:38:57,131 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:57,132 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-13 16:38:57,132 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONUNKNOWN, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:38:57,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:57,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1155773303, now seen corresponding path program 1 times [2024-10-13 16:38:57,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:57,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936682188] [2024-10-13 16:38:57,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:57,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:57,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:57,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:57,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936682188] [2024-10-13 16:38:57,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936682188] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:57,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:57,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:38:57,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739312173] [2024-10-13 16:38:57,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:57,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:38:57,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:57,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:38:57,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:38:57,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 143 [2024-10-13 16:38:57,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 143 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-10-13 16:38:57,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:57,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 143 [2024-10-13 16:38:57,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:59,923 INFO L124 PetriNetUnfolderBase]: 6203/10087 cut-off events. [2024-10-13 16:38:59,923 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-10-13 16:38:59,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19255 conditions, 10087 events. 6203/10087 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 61985 event pairs, 3229 based on Foata normal form. 297/8271 useless extension candidates. Maximal degree in co-relation 18575. Up to 5807 conditions per place. [2024-10-13 16:38:59,989 INFO L140 encePairwiseOnDemand]: 122/143 looper letters, 149 selfloop transitions, 9 changer transitions 9/200 dead transitions. [2024-10-13 16:38:59,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 200 transitions, 760 flow [2024-10-13 16:38:59,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:38:59,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:39:00,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 347 transitions. [2024-10-13 16:39:00,006 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6066433566433567 [2024-10-13 16:39:00,008 INFO L175 Difference]: Start difference. First operand has 118 places, 143 transitions, 306 flow. Second operand 4 states and 347 transitions. [2024-10-13 16:39:00,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 200 transitions, 760 flow [2024-10-13 16:39:00,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 200 transitions, 760 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:39:00,026 INFO L231 Difference]: Finished difference. Result has 112 places, 117 transitions, 282 flow [2024-10-13 16:39:00,028 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=112, PETRI_TRANSITIONS=117} [2024-10-13 16:39:00,032 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, -6 predicate places. [2024-10-13 16:39:00,033 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 117 transitions, 282 flow [2024-10-13 16:39:00,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-10-13 16:39:00,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:00,033 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:00,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 16:39:00,034 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr0ASSERT_VIOLATIONUNKNOWN, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-13 16:39:00,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:00,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1109162787, now seen corresponding path program 1 times [2024-10-13 16:39:00,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:00,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600045828] [2024-10-13 16:39:00,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:00,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:39:00,130 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 16:39:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 16:39:00,198 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 16:39:00,198 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 16:39:00,200 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 28 remaining) [2024-10-13 16:39:00,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONUNKNOWN (26 of 28 remaining) [2024-10-13 16:39:00,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2024-10-13 16:39:00,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2024-10-13 16:39:00,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2024-10-13 16:39:00,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2024-10-13 16:39:00,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2024-10-13 16:39:00,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2024-10-13 16:39:00,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2024-10-13 16:39:00,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2024-10-13 16:39:00,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2024-10-13 16:39:00,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2024-10-13 16:39:00,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2024-10-13 16:39:00,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2024-10-13 16:39:00,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 28 remaining) [2024-10-13 16:39:00,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 28 remaining) [2024-10-13 16:39:00,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2024-10-13 16:39:00,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2024-10-13 16:39:00,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 28 remaining) [2024-10-13 16:39:00,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONUNKNOWN (8 of 28 remaining) [2024-10-13 16:39:00,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2024-10-13 16:39:00,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2024-10-13 16:39:00,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONUNKNOWN (5 of 28 remaining) [2024-10-13 16:39:00,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2024-10-13 16:39:00,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2024-10-13 16:39:00,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONUNKNOWN (2 of 28 remaining) [2024-10-13 16:39:00,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2024-10-13 16:39:00,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2024-10-13 16:39:00,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 16:39:00,210 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-13 16:39:00,213 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 16:39:00,213 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-13 16:39:00,342 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-13 16:39:00,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 216 transitions, 476 flow [2024-10-13 16:39:00,598 INFO L124 PetriNetUnfolderBase]: 281/1253 cut-off events. [2024-10-13 16:39:00,599 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-13 16:39:00,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 1253 events. 281/1253 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 8534 event pairs, 1 based on Foata normal form. 0/789 useless extension candidates. Maximal degree in co-relation 701. Up to 64 conditions per place. [2024-10-13 16:39:00,613 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 216 transitions, 476 flow [2024-10-13 16:39:00,628 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 216 transitions, 476 flow [2024-10-13 16:39:00,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:39:00,631 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;@a85179e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:39:00,632 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-10-13 16:39:00,639 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:39:00,639 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-10-13 16:39:00,639 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:39:00,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:00,639 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-13 16:39:00,639 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONUNKNOWN, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-10-13 16:39:00,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:00,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1360058960, now seen corresponding path program 1 times [2024-10-13 16:39:00,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:00,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186238506] [2024-10-13 16:39:00,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:00,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:00,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:00,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:00,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186238506] [2024-10-13 16:39:00,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186238506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:00,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:00,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:39:00,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645976616] [2024-10-13 16:39:00,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:00,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:39:00,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:00,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:39:00,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:39:00,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 216 [2024-10-13 16:39:00,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 216 transitions, 476 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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) [2024-10-13 16:39:00,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:00,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 216 [2024-10-13 16:39:00,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand