./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -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 b78dfc9c2705d92d2bcea2c224e1a0e17a9d3d516f404185e5eda6bc0d05a15c --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:10:07,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:10:07,103 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:10:07,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:10:07,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:10:07,138 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:10:07,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:10:07,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:10:07,141 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:10:07,143 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:10:07,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:10:07,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:10:07,144 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:10:07,145 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:10:07,146 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:10:07,147 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:10:07,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:10:07,147 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:10:07,148 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:10:07,148 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:10:07,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:10:07,151 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:10:07,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:10:07,152 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:10:07,152 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:10:07,152 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:10:07,152 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:10:07,152 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:10:07,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:10:07,153 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:10:07,153 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:10:07,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:10:07,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:10:07,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:10:07,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:10:07,154 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:10:07,156 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:10:07,156 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:10:07,156 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:10:07,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:10:07,157 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:10:07,158 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:10:07,159 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:10:07,159 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:10:07,159 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78dfc9c2705d92d2bcea2c224e1a0e17a9d3d516f404185e5eda6bc0d05a15c [2024-11-09 15:10:07,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:10:07,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:10:07,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:10:07,446 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:10:07,446 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:10:07,448 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2024-11-09 15:10:08,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:10:09,012 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:10:09,012 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2024-11-09 15:10:09,021 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deadbfb81/b53defc00dcb4a25bf7ecdaf2d724faf/FLAG324973c02 [2024-11-09 15:10:09,032 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deadbfb81/b53defc00dcb4a25bf7ecdaf2d724faf [2024-11-09 15:10:09,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:10:09,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:10:09,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:10:09,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:10:09,047 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:10:09,047 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f0702f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09, skipping insertion in model container [2024-11-09 15:10:09,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,075 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:10:09,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:10:09,300 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:10:09,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:10:09,347 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:10:09,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09 WrapperNode [2024-11-09 15:10:09,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:10:09,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:10:09,350 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:10:09,350 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:10:09,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,419 INFO L138 Inliner]: procedures = 22, calls = 21, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 228 [2024-11-09 15:10:09,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:10:09,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:10:09,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:10:09,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:10:09,431 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,435 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,452 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 15:10:09,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:10:09,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:10:09,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:10:09,471 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:10:09,472 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09" (1/1) ... [2024-11-09 15:10:09,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:10:09,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:10:09,503 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) [2024-11-09 15:10:09,506 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 [2024-11-09 15:10:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:10:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 15:10:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 15:10:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 15:10:09,550 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 15:10:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 15:10:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 15:10:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-09 15:10:09,551 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-09 15:10:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:10:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-09 15:10:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-09 15:10:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-09 15:10:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-09 15:10:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:10:09,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:10:09,555 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:10:09,652 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:10:09,654 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:10:09,991 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:10:09,991 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:10:10,236 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:10:10,236 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 15:10:10,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:10:10 BoogieIcfgContainer [2024-11-09 15:10:10,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:10:10,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:10:10,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:10:10,244 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:10:10,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:10:09" (1/3) ... [2024-11-09 15:10:10,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67cc7bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:10:10, skipping insertion in model container [2024-11-09 15:10:10,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:10:09" (2/3) ... [2024-11-09 15:10:10,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67cc7bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:10:10, skipping insertion in model container [2024-11-09 15:10:10,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:10:10" (3/3) ... [2024-11-09 15:10:10,248 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2024-11-09 15:10:10,266 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:10:10,267 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-09 15:10:10,267 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:10:10,374 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-11-09 15:10:10,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 112 transitions, 290 flow [2024-11-09 15:10:10,475 INFO L124 PetriNetUnfolderBase]: 4/100 cut-off events. [2024-11-09 15:10:10,476 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 15:10:10,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 100 events. 4/100 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 266 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 97. Up to 3 conditions per place. [2024-11-09 15:10:10,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 112 transitions, 290 flow [2024-11-09 15:10:10,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 98 transitions, 241 flow [2024-11-09 15:10:10,502 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:10:10,509 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;@2eb546f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:10:10,509 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-09 15:10:10,519 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:10:10,520 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-11-09 15:10:10,520 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:10:10,520 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:10,521 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:10,522 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 15:10:10,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:10,527 INFO L85 PathProgramCache]: Analyzing trace with hash -916797830, now seen corresponding path program 1 times [2024-11-09 15:10:10,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:10,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178384742] [2024-11-09 15:10:10,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:10,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:11,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:11,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:11,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178384742] [2024-11-09 15:10:11,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178384742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:11,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:11,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:10:11,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336481550] [2024-11-09 15:10:11,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:11,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 15:10:11,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:11,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 15:10:11,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 15:10:11,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 116 [2024-11-09 15:10:11,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 98 transitions, 241 flow. Second operand has 7 states, 7 states have (on average 48.285714285714285) internal successors, (338), 7 states have internal predecessors, (338), 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) [2024-11-09 15:10:11,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:11,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 116 [2024-11-09 15:10:11,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:24,322 INFO L124 PetriNetUnfolderBase]: 103627/151011 cut-off events. [2024-11-09 15:10:24,322 INFO L125 PetriNetUnfolderBase]: For 12107/12107 co-relation queries the response was YES. [2024-11-09 15:10:24,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299865 conditions, 151011 events. 103627/151011 cut-off events. For 12107/12107 co-relation queries the response was YES. Maximal size of possible extension queue 4471. Compared 1194863 event pairs, 4585 based on Foata normal form. 3920/143361 useless extension candidates. Maximal degree in co-relation 298172. Up to 25846 conditions per place. [2024-11-09 15:10:25,848 INFO L140 encePairwiseOnDemand]: 98/116 looper letters, 335 selfloop transitions, 47 changer transitions 0/422 dead transitions. [2024-11-09 15:10:25,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 422 transitions, 1905 flow [2024-11-09 15:10:25,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 15:10:25,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-09 15:10:25,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1130 transitions. [2024-11-09 15:10:25,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6088362068965517 [2024-11-09 15:10:25,867 INFO L175 Difference]: Start difference. First operand has 113 places, 98 transitions, 241 flow. Second operand 16 states and 1130 transitions. [2024-11-09 15:10:25,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 422 transitions, 1905 flow [2024-11-09 15:10:27,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 422 transitions, 1714 flow, removed 0 selfloop flow, removed 11 redundant places. [2024-11-09 15:10:27,384 INFO L231 Difference]: Finished difference. Result has 129 places, 140 transitions, 562 flow [2024-11-09 15:10:27,387 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=562, PETRI_PLACES=129, PETRI_TRANSITIONS=140} [2024-11-09 15:10:27,391 INFO L277 CegarLoopForPetriNet]: 113 programPoint places, 16 predicate places. [2024-11-09 15:10:27,392 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 140 transitions, 562 flow [2024-11-09 15:10:27,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.285714285714285) internal successors, (338), 7 states have internal predecessors, (338), 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) [2024-11-09 15:10:27,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:10:27,393 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:10:27,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:10:27,394 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-09 15:10:27,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:10:27,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1644038937, now seen corresponding path program 1 times [2024-11-09 15:10:27,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:10:27,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865522921] [2024-11-09 15:10:27,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:10:27,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:10:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:10:27,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:10:27,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:10:27,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865522921] [2024-11-09 15:10:27,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865522921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:10:27,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:10:27,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:10:27,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202575509] [2024-11-09 15:10:27,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:10:27,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 15:10:27,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:10:27,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 15:10:27,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 15:10:27,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 116 [2024-11-09 15:10:27,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 140 transitions, 562 flow. Second operand has 7 states, 7 states have (on average 48.285714285714285) internal successors, (338), 7 states have internal predecessors, (338), 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) [2024-11-09 15:10:27,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:10:27,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 116 [2024-11-09 15:10:27,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:10:38,240 INFO L124 PetriNetUnfolderBase]: 93187/136875 cut-off events. [2024-11-09 15:10:38,240 INFO L125 PetriNetUnfolderBase]: For 236322/236990 co-relation queries the response was YES. [2024-11-09 15:10:39,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348727 conditions, 136875 events. 93187/136875 cut-off events. For 236322/236990 co-relation queries the response was YES. Maximal size of possible extension queue 4274. Compared 1088193 event pairs, 5561 based on Foata normal form. 4212/130543 useless extension candidates. Maximal degree in co-relation 345081. Up to 36283 conditions per place. [2024-11-09 15:10:39,992 INFO L140 encePairwiseOnDemand]: 98/116 looper letters, 341 selfloop transitions, 63 changer transitions 0/444 dead transitions. [2024-11-09 15:10:39,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 444 transitions, 2425 flow [2024-11-09 15:10:39,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 15:10:39,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-09 15:10:39,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1176 transitions. [2024-11-09 15:10:39,997 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5963488843813387 [2024-11-09 15:10:39,998 INFO L175 Difference]: Start difference. First operand has 129 places, 140 transitions, 562 flow. Second operand 17 states and 1176 transitions. [2024-11-09 15:10:39,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 444 transitions, 2425 flow