./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 fca748b1 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-wip.dd.update-z3-fca748b-m [2024-11-20 21:51:07,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 21:51:07,271 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 21:51:07,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 21:51:07,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 21:51:07,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 21:51:07,310 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 21:51:07,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 21:51:07,311 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 21:51:07,312 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 21:51:07,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 21:51:07,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 21:51:07,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 21:51:07,316 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 21:51:07,317 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 21:51:07,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 21:51:07,320 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 21:51:07,320 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 21:51:07,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 21:51:07,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 21:51:07,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 21:51:07,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 21:51:07,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 21:51:07,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 21:51:07,323 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 21:51:07,323 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 21:51:07,323 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 21:51:07,323 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 21:51:07,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 21:51:07,324 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 21:51:07,324 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 21:51:07,325 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 21:51:07,325 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 21:51:07,325 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 21:51:07,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:51:07,326 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 21:51:07,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 21:51:07,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 21:51:07,327 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 21:51:07,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 21:51:07,327 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 21:51:07,329 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 21:51:07,329 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 21:51:07,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 21:51:07,330 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2024-11-20 21:51:07,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 21:51:07,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 21:51:07,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 21:51:07,608 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 21:51:07,609 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 21:51:07,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-11-20 21:51:09,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 21:51:09,400 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 21:51:09,401 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2024-11-20 21:51:09,431 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c54d5ec25/39b6b66622624ada8dd06577021389ad/FLAGbeb8fb289 [2024-11-20 21:51:09,653 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c54d5ec25/39b6b66622624ada8dd06577021389ad [2024-11-20 21:51:09,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 21:51:09,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 21:51:09,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 21:51:09,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 21:51:09,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 21:51:09,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:51:09" (1/1) ... [2024-11-20 21:51:09,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea2c94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:09, skipping insertion in model container [2024-11-20 21:51:09,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:51:09" (1/1) ... [2024-11-20 21:51:09,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 21:51:10,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:51:10,375 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 21:51:10,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:51:10,571 INFO L204 MainTranslator]: Completed translation [2024-11-20 21:51:10,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10 WrapperNode [2024-11-20 21:51:10,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 21:51:10,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 21:51:10,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 21:51:10,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 21:51:10,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10" (1/1) ... [2024-11-20 21:51:10,610 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10" (1/1) ... [2024-11-20 21:51:10,657 INFO L138 Inliner]: procedures = 429, calls = 135, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 493 [2024-11-20 21:51:10,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 21:51:10,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 21:51:10,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 21:51:10,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 21:51:10,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10" (1/1) ... [2024-11-20 21:51:10,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10" (1/1) ... [2024-11-20 21:51:10,679 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10" (1/1) ... [2024-11-20 21:51:10,700 INFO L175 MemorySlicer]: Split 78 memory accesses to 6 slices as follows [2, 58, 5, 5, 6, 2]. 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, 17, 3, 3, 2, 1]. [2024-11-20 21:51:10,701 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10" (1/1) ... [2024-11-20 21:51:10,701 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10" (1/1) ... [2024-11-20 21:51:10,718 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10" (1/1) ... [2024-11-20 21:51:10,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10" (1/1) ... [2024-11-20 21:51:10,728 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10" (1/1) ... [2024-11-20 21:51:10,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10" (1/1) ... [2024-11-20 21:51:10,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 21:51:10,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 21:51:10,742 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 21:51:10,742 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 21:51:10,743 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10" (1/1) ... [2024-11-20 21:51:10,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:51:10,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:51:10,784 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) [2024-11-20 21:51:10,800 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 [2024-11-20 21:51:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2024-11-20 21:51:10,846 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2024-11-20 21:51:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 21:51:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 21:51:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 21:51:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 21:51:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 21:51:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 21:51:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 21:51:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 21:51:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 21:51:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 21:51:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 21:51:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 21:51:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 21:51:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 21:51:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 21:51:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 21:51:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 21:51:10,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 21:51:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 21:51:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 21:51:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 21:51:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 21:51:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 21:51:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 21:51:10,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-20 21:51:10,852 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2024-11-20 21:51:10,852 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2024-11-20 21:51:10,852 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 21:51:10,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 21:51:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 21:51:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 21:51:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 21:51:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 21:51:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 21:51:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 21:51:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 21:51:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 21:51:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 21:51:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 21:51:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 21:51:10,858 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 21:51:11,059 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 21:51:11,061 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 21:51:11,799 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 21:51:11,799 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 21:51:12,289 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 21:51:12,289 INFO L316 CfgBuilder]: Removed 13 assume(true) statements. [2024-11-20 21:51:12,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:51:12 BoogieIcfgContainer [2024-11-20 21:51:12,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 21:51:12,293 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 21:51:12,293 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 21:51:12,296 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 21:51:12,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:51:09" (1/3) ... [2024-11-20 21:51:12,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63817254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:51:12, skipping insertion in model container [2024-11-20 21:51:12,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:10" (2/3) ... [2024-11-20 21:51:12,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63817254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:51:12, skipping insertion in model container [2024-11-20 21:51:12,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:51:12" (3/3) ... [2024-11-20 21:51:12,300 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2024-11-20 21:51:12,319 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 21:51:12,320 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-20 21:51:12,320 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 21:51:12,486 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-20 21:51:12,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 143 transitions, 306 flow [2024-11-20 21:51:12,671 INFO L124 PetriNetUnfolderBase]: 72/346 cut-off events. [2024-11-20 21:51:12,671 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-20 21:51:12,683 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 1790 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. [2024-11-20 21:51:12,684 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 143 transitions, 306 flow [2024-11-20 21:51:12,694 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 143 transitions, 306 flow [2024-11-20 21:51:12,708 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 21:51:12,717 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;@43ca561e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 21:51:12,718 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-20 21:51:12,742 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 21:51:12,742 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-20 21:51:12,742 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 21:51:12,743 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:51:12,743 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-20 21:51:12,744 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 21:51:12,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:51:12,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1155773303, now seen corresponding path program 1 times [2024-11-20 21:51:12,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:51:12,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604847961] [2024-11-20 21:51:12,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:51:12,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:51:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:51:13,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:51:13,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:51:13,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604847961] [2024-11-20 21:51:13,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604847961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:51:13,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:51:13,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 21:51:13,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994173886] [2024-11-20 21:51:13,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:51:13,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:51:13,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:51:13,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:51:13,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:51:13,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 143 [2024-11-20 21:51:13,345 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) [2024-11-20 21:51:13,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:51:13,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 143 [2024-11-20 21:51:13,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:51:15,514 INFO L124 PetriNetUnfolderBase]: 6195/10094 cut-off events. [2024-11-20 21:51:15,514 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2024-11-20 21:51:15,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19262 conditions, 10094 events. 6195/10094 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 62179 event pairs, 3229 based on Foata normal form. 297/8274 useless extension candidates. Maximal degree in co-relation 18582. Up to 5807 conditions per place. [2024-11-20 21:51:15,581 INFO L140 encePairwiseOnDemand]: 122/143 looper letters, 149 selfloop transitions, 9 changer transitions 9/200 dead transitions. [2024-11-20 21:51:15,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 200 transitions, 760 flow [2024-11-20 21:51:15,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:51:15,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:51:15,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 347 transitions. [2024-11-20 21:51:15,597 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6066433566433567 [2024-11-20 21:51:15,599 INFO L175 Difference]: Start difference. First operand has 118 places, 143 transitions, 306 flow. Second operand 4 states and 347 transitions. [2024-11-20 21:51:15,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 200 transitions, 760 flow [2024-11-20 21:51:15,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 200 transitions, 760 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 21:51:15,622 INFO L231 Difference]: Finished difference. Result has 112 places, 117 transitions, 282 flow [2024-11-20 21:51:15,628 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} [2024-11-20 21:51:15,637 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, -6 predicate places. [2024-11-20 21:51:15,638 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 117 transitions, 282 flow [2024-11-20 21:51:15,638 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) [2024-11-20 21:51:15,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:51:15,639 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:51:15,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 21:51:15,639 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting producer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [consumer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 21:51:15,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:51:15,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1013961501, now seen corresponding path program 1 times [2024-11-20 21:51:15,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:51:15,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870315975] [2024-11-20 21:51:15,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:51:15,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:51:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:51:16,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:51:16,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:51:16,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870315975] [2024-11-20 21:51:16,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870315975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:51:16,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:51:16,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 21:51:16,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415640220] [2024-11-20 21:51:16,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:51:16,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 21:51:16,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:51:16,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 21:51:16,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 21:51:16,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 143 [2024-11-20 21:51:16,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 117 transitions, 282 flow. Second operand has 7 states, 7 states have (on average 42.0) internal successors, (294), 7 states have internal predecessors, (294), 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) [2024-11-20 21:51:16,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:51:16,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 143 [2024-11-20 21:51:16,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:51:19,544 INFO L124 PetriNetUnfolderBase]: 7515/11735 cut-off events. [2024-11-20 21:51:19,546 INFO L125 PetriNetUnfolderBase]: For 2553/2553 co-relation queries the response was YES. [2024-11-20 21:51:19,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24664 conditions, 11735 events. 7515/11735 cut-off events. For 2553/2553 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 71741 event pairs, 1369 based on Foata normal form. 0/9954 useless extension candidates. Maximal degree in co-relation 23805. Up to 7782 conditions per place. [2024-11-20 21:51:19,614 INFO L140 encePairwiseOnDemand]: 130/143 looper letters, 204 selfloop transitions, 30 changer transitions 0/267 dead transitions. [2024-11-20 21:51:19,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 267 transitions, 1137 flow [2024-11-20 21:51:19,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 21:51:19,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 21:51:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 730 transitions. [2024-11-20 21:51:19,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4254079254079254 [2024-11-20 21:51:19,623 INFO L175 Difference]: Start difference. First operand has 112 places, 117 transitions, 282 flow. Second operand 12 states and 730 transitions. [2024-11-20 21:51:19,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 267 transitions, 1137 flow [2024-11-20 21:51:19,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 267 transitions, 1129 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:51:19,633 INFO L231 Difference]: Finished difference. Result has 127 places, 146 transitions, 473 flow [2024-11-20 21:51:19,634 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=473, PETRI_PLACES=127, PETRI_TRANSITIONS=146} [2024-11-20 21:51:19,634 INFO L277 CegarLoopForPetriNet]: 118 programPoint places, 9 predicate places. [2024-11-20 21:51:19,635 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 146 transitions, 473 flow [2024-11-20 21:51:19,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.0) internal successors, (294), 7 states have internal predecessors, (294), 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) [2024-11-20 21:51:19,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:51:19,636 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-20 21:51:19,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 21:51:19,636 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-20 21:51:19,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:51:19,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1109162787, now seen corresponding path program 1 times [2024-11-20 21:51:19,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:51:19,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122950508] [2024-11-20 21:51:19,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:51:19,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:51:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 21:51:19,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 21:51:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 21:51:19,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 21:51:19,763 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 21:51:19,764 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 28 remaining) [2024-11-20 21:51:19,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (26 of 28 remaining) [2024-11-20 21:51:19,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2024-11-20 21:51:19,766 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2024-11-20 21:51:19,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2024-11-20 21:51:19,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2024-11-20 21:51:19,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2024-11-20 21:51:19,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2024-11-20 21:51:19,767 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2024-11-20 21:51:19,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2024-11-20 21:51:19,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2024-11-20 21:51:19,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2024-11-20 21:51:19,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2024-11-20 21:51:19,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2024-11-20 21:51:19,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 28 remaining) [2024-11-20 21:51:19,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 28 remaining) [2024-11-20 21:51:19,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2024-11-20 21:51:19,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2024-11-20 21:51:19,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 28 remaining) [2024-11-20 21:51:19,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (8 of 28 remaining) [2024-11-20 21:51:19,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2024-11-20 21:51:19,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2024-11-20 21:51:19,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (5 of 28 remaining) [2024-11-20 21:51:19,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2024-11-20 21:51:19,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2024-11-20 21:51:19,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 28 remaining) [2024-11-20 21:51:19,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2024-11-20 21:51:19,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2024-11-20 21:51:19,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 21:51:19,772 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-20 21:51:19,774 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 21:51:19,774 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 21:51:19,879 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-20 21:51:19,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 216 transitions, 476 flow [2024-11-20 21:51:20,016 INFO L124 PetriNetUnfolderBase]: 281/1253 cut-off events. [2024-11-20 21:51:20,017 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-20 21:51:20,036 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 8530 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. [2024-11-20 21:51:20,037 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 216 transitions, 476 flow [2024-11-20 21:51:20,170 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 216 transitions, 476 flow [2024-11-20 21:51:20,175 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 21:51:20,176 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;@43ca561e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 21:51:20,176 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-20 21:51:20,188 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 21:51:20,189 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-20 21:51:20,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 21:51:20,189 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:51:20,189 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-20 21:51:20,190 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-20 21:51:20,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:51:20,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1360058960, now seen corresponding path program 1 times [2024-11-20 21:51:20,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:51:20,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061857068] [2024-11-20 21:51:20,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:51:20,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:51:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:51:20,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:51:20,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:51:20,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061857068] [2024-11-20 21:51:20,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061857068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:51:20,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:51:20,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 21:51:20,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581266525] [2024-11-20 21:51:20,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:51:20,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:51:20,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:51:20,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:51:20,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:51:20,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 216 [2024-11-20 21:51:20,308 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) [2024-11-20 21:51:20,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:51:20,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 216 [2024-11-20 21:51:20,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand