./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-lamport.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/weaver/parallel-lamport.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 7641d1105b9de7b20c96680ae1baa82cbf27158c037dacb66ff49f347bd2fa94 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 01:56:57,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 01:56:57,874 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 01:56:57,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 01:56:57,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 01:56:57,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 01:56:57,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 01:56:57,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 01:56:57,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 01:56:57,914 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 01:56:57,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 01:56:57,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 01:56:57,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 01:56:57,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 01:56:57,916 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 01:56:57,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 01:56:57,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 01:56:57,922 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 01:56:57,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 01:56:57,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 01:56:57,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 01:56:57,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 01:56:57,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 01:56:57,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 01:56:57,925 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 01:56:57,925 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 01:56:57,925 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 01:56:57,925 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 01:56:57,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 01:56:57,926 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 01:56:57,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 01:56:57,926 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 01:56:57,927 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 01:56:57,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 01:56:57,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:56:57,928 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 01:56:57,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 01:56:57,929 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 01:56:57,929 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 01:56:57,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 01:56:57,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 01:56:57,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 01:56:57,930 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 01:56:57,930 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 01:56:57,931 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7641d1105b9de7b20c96680ae1baa82cbf27158c037dacb66ff49f347bd2fa94 [2024-11-23 01:56:58,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 01:56:58,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 01:56:58,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 01:56:58,282 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 01:56:58,282 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 01:56:58,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-lamport.wvr.c [2024-11-23 01:56:59,818 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 01:56:59,992 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 01:56:59,992 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-lamport.wvr.c [2024-11-23 01:57:00,001 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d61aafead/b5834858154b40cdbf8f050337c87895/FLAG2e3e934bc [2024-11-23 01:57:00,015 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d61aafead/b5834858154b40cdbf8f050337c87895 [2024-11-23 01:57:00,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 01:57:00,019 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 01:57:00,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 01:57:00,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 01:57:00,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 01:57:00,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ef4a9b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00, skipping insertion in model container [2024-11-23 01:57:00,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,067 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 01:57:00,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:57:00,231 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 01:57:00,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:57:00,271 INFO L204 MainTranslator]: Completed translation [2024-11-23 01:57:00,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00 WrapperNode [2024-11-23 01:57:00,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 01:57:00,272 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 01:57:00,272 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 01:57:00,273 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 01:57:00,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,307 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 215 [2024-11-23 01:57:00,308 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 01:57:00,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 01:57:00,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 01:57:00,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 01:57:00,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,330 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,364 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-23 01:57:00,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,368 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,395 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,401 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 01:57:00,402 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 01:57:00,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 01:57:00,403 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 01:57:00,408 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00" (1/1) ... [2024-11-23 01:57:00,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:57:00,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:57:00,444 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) [2024-11-23 01:57:00,446 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 [2024-11-23 01:57:00,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 01:57:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-23 01:57:00,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-23 01:57:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-23 01:57:00,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-23 01:57:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-23 01:57:00,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-23 01:57:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 01:57:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 01:57:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 01:57:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 01:57:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 01:57:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 01:57:00,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 01:57:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 01:57:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 01:57:00,489 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 01:57:00,569 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 01:57:00,571 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 01:57:00,898 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 01:57:00,899 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 01:57:01,277 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 01:57:01,277 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 01:57:01,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:01 BoogieIcfgContainer [2024-11-23 01:57:01,278 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 01:57:01,280 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 01:57:01,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 01:57:01,286 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 01:57:01,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:57:00" (1/3) ... [2024-11-23 01:57:01,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb9221d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:01, skipping insertion in model container [2024-11-23 01:57:01,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:57:00" (2/3) ... [2024-11-23 01:57:01,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cb9221d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:57:01, skipping insertion in model container [2024-11-23 01:57:01,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:01" (3/3) ... [2024-11-23 01:57:01,292 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-lamport.wvr.c [2024-11-23 01:57:01,309 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 01:57:01,309 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-23 01:57:01,309 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 01:57:01,375 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-23 01:57:01,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 161 flow [2024-11-23 01:57:01,442 INFO L124 PetriNetUnfolderBase]: 1/67 cut-off events. [2024-11-23 01:57:01,443 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-23 01:57:01,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 67 events. 1/67 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2024-11-23 01:57:01,445 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 70 transitions, 161 flow [2024-11-23 01:57:01,448 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 64 transitions, 140 flow [2024-11-23 01:57:01,456 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 01:57:01,466 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;@58e42de6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 01:57:01,466 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-23 01:57:01,470 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 01:57:01,470 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-23 01:57:01,470 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:57:01,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:57:01,471 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:57:01,471 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:57:01,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:57:01,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1078065324, now seen corresponding path program 1 times [2024-11-23 01:57:01,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:57:01,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669859860] [2024-11-23 01:57:01,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:57:01,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:57:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:57:01,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:57:01,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:57:01,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669859860] [2024-11-23 01:57:01,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669859860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:57:01,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:57:01,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:57:01,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429038042] [2024-11-23 01:57:01,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:57:01,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:57:01,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:57:01,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:57:01,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:57:01,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 70 [2024-11-23 01:57:01,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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) [2024-11-23 01:57:01,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:57:01,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 70 [2024-11-23 01:57:01,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:57:02,108 INFO L124 PetriNetUnfolderBase]: 305/637 cut-off events. [2024-11-23 01:57:02,108 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-23 01:57:02,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 637 events. 305/637 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3680 event pairs, 303 based on Foata normal form. 1/569 useless extension candidates. Maximal degree in co-relation 1056. Up to 501 conditions per place. [2024-11-23 01:57:02,120 INFO L140 encePairwiseOnDemand]: 64/70 looper letters, 27 selfloop transitions, 4 changer transitions 0/67 dead transitions. [2024-11-23 01:57:02,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 67 transitions, 208 flow [2024-11-23 01:57:02,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:57:02,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:57:02,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-11-23 01:57:02,134 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.675 [2024-11-23 01:57:02,136 INFO L175 Difference]: Start difference. First operand has 73 places, 64 transitions, 140 flow. Second operand 4 states and 189 transitions. [2024-11-23 01:57:02,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 67 transitions, 208 flow [2024-11-23 01:57:02,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 67 transitions, 202 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-23 01:57:02,151 INFO L231 Difference]: Finished difference. Result has 74 places, 67 transitions, 163 flow [2024-11-23 01:57:02,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=74, PETRI_TRANSITIONS=67} [2024-11-23 01:57:02,157 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 1 predicate places. [2024-11-23 01:57:02,158 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 67 transitions, 163 flow [2024-11-23 01:57:02,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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) [2024-11-23 01:57:02,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:57:02,159 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:57:02,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 01:57:02,160 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:57:02,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:57:02,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1121957253, now seen corresponding path program 1 times [2024-11-23 01:57:02,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:57:02,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272677612] [2024-11-23 01:57:02,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:57:02,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:57:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:57:02,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:57:02,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:57:02,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272677612] [2024-11-23 01:57:02,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272677612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:57:02,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058914105] [2024-11-23 01:57:02,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:57:02,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:57:02,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:57:02,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:57:02,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 01:57:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:57:02,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 01:57:02,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:57:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:57:02,509 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 01:57:02,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058914105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:57:02,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 01:57:02,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-23 01:57:02,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298717232] [2024-11-23 01:57:02,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:57:02,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:57:02,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:57:02,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:57:02,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 01:57:02,528 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 70 [2024-11-23 01:57:02,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 67 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 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) [2024-11-23 01:57:02,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:57:02,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 70 [2024-11-23 01:57:02,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:57:02,672 INFO L124 PetriNetUnfolderBase]: 305/636 cut-off events. [2024-11-23 01:57:02,672 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-23 01:57:02,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1194 conditions, 636 events. 305/636 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3730 event pairs, 303 based on Foata normal form. 1/569 useless extension candidates. Maximal degree in co-relation 1167. Up to 496 conditions per place. [2024-11-23 01:57:02,676 INFO L140 encePairwiseOnDemand]: 65/70 looper letters, 23 selfloop transitions, 7 changer transitions 0/66 dead transitions. [2024-11-23 01:57:02,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 66 transitions, 219 flow [2024-11-23 01:57:02,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:57:02,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:57:02,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 265 transitions. [2024-11-23 01:57:02,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6309523809523809 [2024-11-23 01:57:02,679 INFO L175 Difference]: Start difference. First operand has 74 places, 67 transitions, 163 flow. Second operand 6 states and 265 transitions. [2024-11-23 01:57:02,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 66 transitions, 219 flow [2024-11-23 01:57:02,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 66 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:57:02,681 INFO L231 Difference]: Finished difference. Result has 77 places, 66 transitions, 170 flow [2024-11-23 01:57:02,681 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=170, PETRI_PLACES=77, PETRI_TRANSITIONS=66} [2024-11-23 01:57:02,682 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 4 predicate places. [2024-11-23 01:57:02,682 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 66 transitions, 170 flow [2024-11-23 01:57:02,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.666666666666664) internal successors, (244), 6 states have internal predecessors, (244), 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) [2024-11-23 01:57:02,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:57:02,683 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:57:02,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 01:57:02,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:57:02,887 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:57:02,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:57:02,888 INFO L85 PathProgramCache]: Analyzing trace with hash 420937065, now seen corresponding path program 1 times [2024-11-23 01:57:02,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:57:02,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998535918] [2024-11-23 01:57:02,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:57:02,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:57:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:57:03,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:57:03,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:57:03,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998535918] [2024-11-23 01:57:03,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998535918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:57:03,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90417584] [2024-11-23 01:57:03,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:57:03,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:57:03,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:57:03,008 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:57:03,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 01:57:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:57:03,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 01:57:03,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:57:03,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:57:03,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:57:03,145 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:57:03,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90417584] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:57:03,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:57:03,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-23 01:57:03,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556656660] [2024-11-23 01:57:03,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:57:03,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 01:57:03,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:57:03,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 01:57:03,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-23 01:57:03,162 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 70 [2024-11-23 01:57:03,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 66 transitions, 170 flow. Second operand has 12 states, 12 states have (on average 40.5) internal successors, (486), 12 states have internal predecessors, (486), 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) [2024-11-23 01:57:03,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:57:03,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 70 [2024-11-23 01:57:03,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:57:03,360 INFO L124 PetriNetUnfolderBase]: 308/648 cut-off events. [2024-11-23 01:57:03,360 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-23 01:57:03,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 648 events. 308/648 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3739 event pairs, 303 based on Foata normal form. 3/581 useless extension candidates. Maximal degree in co-relation 1168. Up to 503 conditions per place. [2024-11-23 01:57:03,363 INFO L140 encePairwiseOnDemand]: 65/70 looper letters, 26 selfloop transitions, 13 changer transitions 0/75 dead transitions. [2024-11-23 01:57:03,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 75 transitions, 302 flow [2024-11-23 01:57:03,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 01:57:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 01:57:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 432 transitions. [2024-11-23 01:57:03,365 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6171428571428571 [2024-11-23 01:57:03,366 INFO L175 Difference]: Start difference. First operand has 77 places, 66 transitions, 170 flow. Second operand 10 states and 432 transitions. [2024-11-23 01:57:03,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 75 transitions, 302 flow [2024-11-23 01:57:03,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 75 transitions, 256 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-23 01:57:03,368 INFO L231 Difference]: Finished difference. Result has 84 places, 75 transitions, 222 flow [2024-11-23 01:57:03,368 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=222, PETRI_PLACES=84, PETRI_TRANSITIONS=75} [2024-11-23 01:57:03,369 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 11 predicate places. [2024-11-23 01:57:03,369 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 75 transitions, 222 flow [2024-11-23 01:57:03,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 40.5) internal successors, (486), 12 states have internal predecessors, (486), 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) [2024-11-23 01:57:03,369 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:57:03,370 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] [2024-11-23 01:57:03,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 01:57:03,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-23 01:57:03,571 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:57:03,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:57:03,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2018505786, now seen corresponding path program 1 times [2024-11-23 01:57:03,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:57:03,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428731566] [2024-11-23 01:57:03,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:57:03,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:57:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:57:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:57:03,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:57:03,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428731566] [2024-11-23 01:57:03,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428731566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:57:03,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:57:03,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:57:03,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821773902] [2024-11-23 01:57:03,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:57:03,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 01:57:03,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:57:03,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 01:57:03,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 01:57:03,612 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 70 [2024-11-23 01:57:03,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-11-23 01:57:03,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:57:03,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 70 [2024-11-23 01:57:03,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:57:03,762 INFO L124 PetriNetUnfolderBase]: 638/1292 cut-off events. [2024-11-23 01:57:03,762 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-23 01:57:03,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2437 conditions, 1292 events. 638/1292 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7944 event pairs, 306 based on Foata normal form. 61/1308 useless extension candidates. Maximal degree in co-relation 2403. Up to 560 conditions per place. [2024-11-23 01:57:03,769 INFO L140 encePairwiseOnDemand]: 65/70 looper letters, 46 selfloop transitions, 3 changer transitions 4/85 dead transitions. [2024-11-23 01:57:03,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 85 transitions, 351 flow [2024-11-23 01:57:03,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:57:03,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 01:57:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 151 transitions. [2024-11-23 01:57:03,770 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.719047619047619 [2024-11-23 01:57:03,770 INFO L175 Difference]: Start difference. First operand has 84 places, 75 transitions, 222 flow. Second operand 3 states and 151 transitions. [2024-11-23 01:57:03,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 85 transitions, 351 flow [2024-11-23 01:57:03,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 85 transitions, 340 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-23 01:57:03,773 INFO L231 Difference]: Finished difference. Result has 85 places, 75 transitions, 224 flow [2024-11-23 01:57:03,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=85, PETRI_TRANSITIONS=75} [2024-11-23 01:57:03,774 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 12 predicate places. [2024-11-23 01:57:03,774 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 75 transitions, 224 flow [2024-11-23 01:57:03,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-11-23 01:57:03,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:57:03,774 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] [2024-11-23 01:57:03,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 01:57:03,775 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:57:03,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:57:03,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1593528345, now seen corresponding path program 1 times [2024-11-23 01:57:03,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:57:03,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753061716] [2024-11-23 01:57:03,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:57:03,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:57:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:57:03,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:57:03,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:57:03,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753061716] [2024-11-23 01:57:03,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753061716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:57:03,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:57:03,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:57:03,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463718642] [2024-11-23 01:57:03,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:57:03,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 01:57:03,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:57:03,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 01:57:03,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 01:57:03,827 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 70 [2024-11-23 01:57:03,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 75 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-11-23 01:57:03,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:57:03,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 70 [2024-11-23 01:57:03,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:57:03,978 INFO L124 PetriNetUnfolderBase]: 658/1330 cut-off events. [2024-11-23 01:57:03,979 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-23 01:57:03,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 1330 events. 658/1330 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 8322 event pairs, 341 based on Foata normal form. 59/1321 useless extension candidates. Maximal degree in co-relation 2500. Up to 539 conditions per place. [2024-11-23 01:57:03,984 INFO L140 encePairwiseOnDemand]: 65/70 looper letters, 48 selfloop transitions, 3 changer transitions 3/86 dead transitions. [2024-11-23 01:57:03,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 86 transitions, 358 flow [2024-11-23 01:57:03,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:57:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 01:57:03,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2024-11-23 01:57:03,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7238095238095238 [2024-11-23 01:57:03,985 INFO L175 Difference]: Start difference. First operand has 85 places, 75 transitions, 224 flow. Second operand 3 states and 152 transitions. [2024-11-23 01:57:03,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 86 transitions, 358 flow [2024-11-23 01:57:03,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 86 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 01:57:03,987 INFO L231 Difference]: Finished difference. Result has 86 places, 75 transitions, 231 flow [2024-11-23 01:57:03,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=86, PETRI_TRANSITIONS=75} [2024-11-23 01:57:03,988 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 13 predicate places. [2024-11-23 01:57:03,988 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 75 transitions, 231 flow [2024-11-23 01:57:03,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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) [2024-11-23 01:57:03,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:57:03,988 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:57:03,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 01:57:03,989 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:57:03,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:57:03,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1306704058, now seen corresponding path program 2 times [2024-11-23 01:57:03,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:57:03,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730565628] [2024-11-23 01:57:03,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:57:03,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:57:04,000 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:57:04,000 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:57:04,034 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 01:57:04,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:57:04,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730565628] [2024-11-23 01:57:04,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730565628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 01:57:04,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273340437] [2024-11-23 01:57:04,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 01:57:04,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:57:04,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:57:04,037 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 01:57:04,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 01:57:04,089 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 01:57:04,089 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 01:57:04,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 01:57:04,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 01:57:04,120 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 01:57:04,121 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 01:57:04,149 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 01:57:04,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273340437] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 01:57:04,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 01:57:04,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-23 01:57:04,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938044299] [2024-11-23 01:57:04,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 01:57:04,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 01:57:04,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:57:04,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 01:57:04,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 01:57:04,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 70 [2024-11-23 01:57:04,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 75 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 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) [2024-11-23 01:57:04,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:57:04,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 70 [2024-11-23 01:57:04,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:57:04,266 INFO L124 PetriNetUnfolderBase]: 362/767 cut-off events. [2024-11-23 01:57:04,267 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-11-23 01:57:04,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1480 conditions, 767 events. 362/767 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4822 event pairs, 357 based on Foata normal form. 1/673 useless extension candidates. Maximal degree in co-relation 1449. Up to 599 conditions per place. [2024-11-23 01:57:04,269 INFO L140 encePairwiseOnDemand]: 63/70 looper letters, 21 selfloop transitions, 18 changer transitions 0/74 dead transitions. [2024-11-23 01:57:04,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 74 transitions, 299 flow [2024-11-23 01:57:04,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 01:57:04,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 01:57:04,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 256 transitions. [2024-11-23 01:57:04,271 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2024-11-23 01:57:04,271 INFO L175 Difference]: Start difference. First operand has 86 places, 75 transitions, 231 flow. Second operand 6 states and 256 transitions. [2024-11-23 01:57:04,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 74 transitions, 299 flow [2024-11-23 01:57:04,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 74 transitions, 283 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-23 01:57:04,273 INFO L231 Difference]: Finished difference. Result has 84 places, 74 transitions, 241 flow [2024-11-23 01:57:04,273 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=84, PETRI_TRANSITIONS=74} [2024-11-23 01:57:04,273 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 11 predicate places. [2024-11-23 01:57:04,274 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 74 transitions, 241 flow [2024-11-23 01:57:04,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.833333333333336) internal successors, (239), 6 states have internal predecessors, (239), 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) [2024-11-23 01:57:04,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:57:04,274 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, 1, 1, 1, 1, 1] [2024-11-23 01:57:04,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 01:57:04,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 01:57:04,475 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:57:04,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:57:04,475 INFO L85 PathProgramCache]: Analyzing trace with hash 879887155, now seen corresponding path program 1 times [2024-11-23 01:57:04,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:57:04,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985383678] [2024-11-23 01:57:04,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:57:04,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:57:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:57:04,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:57:04,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:57:04,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985383678] [2024-11-23 01:57:04,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985383678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:57:04,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:57:04,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:57:04,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959238622] [2024-11-23 01:57:04,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:57:04,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:57:04,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:57:04,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:57:04,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:57:04,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 70 [2024-11-23 01:57:04,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 74 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-23 01:57:04,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:57:04,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 70 [2024-11-23 01:57:04,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:57:04,857 INFO L124 PetriNetUnfolderBase]: 1351/2694 cut-off events. [2024-11-23 01:57:04,857 INFO L125 PetriNetUnfolderBase]: For 231/231 co-relation queries the response was YES. [2024-11-23 01:57:04,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5224 conditions, 2694 events. 1351/2694 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 18619 event pairs, 521 based on Foata normal form. 30/2687 useless extension candidates. Maximal degree in co-relation 5129. Up to 773 conditions per place. [2024-11-23 01:57:04,863 INFO L140 encePairwiseOnDemand]: 63/70 looper letters, 56 selfloop transitions, 5 changer transitions 25/112 dead transitions. [2024-11-23 01:57:04,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 112 transitions, 503 flow [2024-11-23 01:57:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 01:57:04,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 01:57:04,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 230 transitions. [2024-11-23 01:57:04,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-23 01:57:04,865 INFO L175 Difference]: Start difference. First operand has 84 places, 74 transitions, 241 flow. Second operand 5 states and 230 transitions. [2024-11-23 01:57:04,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 112 transitions, 503 flow [2024-11-23 01:57:04,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 112 transitions, 467 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-23 01:57:04,867 INFO L231 Difference]: Finished difference. Result has 83 places, 73 transitions, 213 flow [2024-11-23 01:57:04,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=213, PETRI_PLACES=83, PETRI_TRANSITIONS=73} [2024-11-23 01:57:04,867 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 10 predicate places. [2024-11-23 01:57:04,868 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 73 transitions, 213 flow [2024-11-23 01:57:04,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-23 01:57:04,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:57:04,868 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, 1, 1, 1, 1, 1] [2024-11-23 01:57:04,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 01:57:04,868 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:57:04,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:57:04,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1029117957, now seen corresponding path program 1 times [2024-11-23 01:57:04,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:57:04,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782301208] [2024-11-23 01:57:04,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:57:04,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:57:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:57:04,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:57:04,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:57:04,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782301208] [2024-11-23 01:57:04,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782301208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:57:04,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:57:04,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:57:04,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327522018] [2024-11-23 01:57:04,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:57:04,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:57:04,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:57:04,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:57:04,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:57:04,914 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 70 [2024-11-23 01:57:04,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 73 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-23 01:57:04,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:57:04,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 70 [2024-11-23 01:57:04,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:57:05,035 INFO L124 PetriNetUnfolderBase]: 631/1372 cut-off events. [2024-11-23 01:57:05,036 INFO L125 PetriNetUnfolderBase]: For 285/285 co-relation queries the response was YES. [2024-11-23 01:57:05,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2868 conditions, 1372 events. 631/1372 cut-off events. For 285/285 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 8048 event pairs, 251 based on Foata normal form. 30/1383 useless extension candidates. Maximal degree in co-relation 2789. Up to 387 conditions per place. [2024-11-23 01:57:05,040 INFO L140 encePairwiseOnDemand]: 64/70 looper letters, 55 selfloop transitions, 5 changer transitions 3/89 dead transitions. [2024-11-23 01:57:05,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 89 transitions, 376 flow [2024-11-23 01:57:05,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:57:05,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:57:05,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2024-11-23 01:57:05,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-11-23 01:57:05,041 INFO L175 Difference]: Start difference. First operand has 83 places, 73 transitions, 213 flow. Second operand 4 states and 176 transitions. [2024-11-23 01:57:05,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 89 transitions, 376 flow [2024-11-23 01:57:05,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 89 transitions, 369 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-23 01:57:05,043 INFO L231 Difference]: Finished difference. Result has 81 places, 72 transitions, 212 flow [2024-11-23 01:57:05,043 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=81, PETRI_TRANSITIONS=72} [2024-11-23 01:57:05,044 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 8 predicate places. [2024-11-23 01:57:05,044 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 72 transitions, 212 flow [2024-11-23 01:57:05,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-23 01:57:05,044 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:57:05,044 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, 1, 1, 1, 1, 1, 1] [2024-11-23 01:57:05,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 01:57:05,044 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:57:05,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:57:05,045 INFO L85 PathProgramCache]: Analyzing trace with hash 447277688, now seen corresponding path program 1 times [2024-11-23 01:57:05,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:57:05,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540999667] [2024-11-23 01:57:05,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:57:05,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:57:05,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:57:05,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:57:05,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:57:05,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540999667] [2024-11-23 01:57:05,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540999667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:57:05,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:57:05,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:57:05,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883291097] [2024-11-23 01:57:05,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:57:05,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:57:05,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:57:05,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:57:05,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:57:05,091 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 70 [2024-11-23 01:57:05,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 72 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-23 01:57:05,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:57:05,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 70 [2024-11-23 01:57:05,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:57:05,211 INFO L124 PetriNetUnfolderBase]: 548/1143 cut-off events. [2024-11-23 01:57:05,212 INFO L125 PetriNetUnfolderBase]: For 386/424 co-relation queries the response was YES. [2024-11-23 01:57:05,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2484 conditions, 1143 events. 548/1143 cut-off events. For 386/424 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6421 event pairs, 348 based on Foata normal form. 24/1135 useless extension candidates. Maximal degree in co-relation 2405. Up to 576 conditions per place. [2024-11-23 01:57:05,215 INFO L140 encePairwiseOnDemand]: 66/70 looper letters, 42 selfloop transitions, 3 changer transitions 12/79 dead transitions. [2024-11-23 01:57:05,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 79 transitions, 333 flow [2024-11-23 01:57:05,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:57:05,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:57:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2024-11-23 01:57:05,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5928571428571429 [2024-11-23 01:57:05,215 INFO L175 Difference]: Start difference. First operand has 81 places, 72 transitions, 212 flow. Second operand 4 states and 166 transitions. [2024-11-23 01:57:05,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 79 transitions, 333 flow [2024-11-23 01:57:05,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 79 transitions, 320 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-23 01:57:05,217 INFO L231 Difference]: Finished difference. Result has 79 places, 61 transitions, 178 flow [2024-11-23 01:57:05,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=79, PETRI_TRANSITIONS=61} [2024-11-23 01:57:05,217 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 6 predicate places. [2024-11-23 01:57:05,218 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 61 transitions, 178 flow [2024-11-23 01:57:05,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-23 01:57:05,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:57:05,218 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, 1, 1, 1, 1, 1, 1] [2024-11-23 01:57:05,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 01:57:05,218 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 01:57:05,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:57:05,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1262040847, now seen corresponding path program 1 times [2024-11-23 01:57:05,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:57:05,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88145767] [2024-11-23 01:57:05,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:57:05,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:57:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:57:05,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:57:05,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:57:05,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88145767] [2024-11-23 01:57:05,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88145767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:57:05,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:57:05,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 01:57:05,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092064952] [2024-11-23 01:57:05,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:57:05,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:57:05,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:57:05,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:57:05,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:57:05,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 70 [2024-11-23 01:57:05,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 61 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-23 01:57:05,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:57:05,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 70 [2024-11-23 01:57:05,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:57:05,300 INFO L124 PetriNetUnfolderBase]: 68/189 cut-off events. [2024-11-23 01:57:05,300 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-23 01:57:05,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 189 events. 68/189 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 643 event pairs, 63 based on Foata normal form. 30/205 useless extension candidates. Maximal degree in co-relation 341. Up to 149 conditions per place. [2024-11-23 01:57:05,300 INFO L140 encePairwiseOnDemand]: 68/70 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2024-11-23 01:57:05,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 60 transitions, 250 flow [2024-11-23 01:57:05,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:57:05,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 01:57:05,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-11-23 01:57:05,301 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-23 01:57:05,302 INFO L175 Difference]: Start difference. First operand has 79 places, 61 transitions, 178 flow. Second operand 3 states and 120 transitions. [2024-11-23 01:57:05,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 60 transitions, 250 flow [2024-11-23 01:57:05,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 60 transitions, 238 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-23 01:57:05,302 INFO L231 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2024-11-23 01:57:05,303 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2024-11-23 01:57:05,303 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, -8 predicate places. [2024-11-23 01:57:05,303 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 0 transitions, 0 flow [2024-11-23 01:57:05,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-23 01:57:05,305 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-23 01:57:05,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-23 01:57:05,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-23 01:57:05,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-23 01:57:05,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-23 01:57:05,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-23 01:57:05,306 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-23 01:57:05,307 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-11-23 01:57:05,307 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-11-23 01:57:05,307 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-23 01:57:05,307 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-23 01:57:05,307 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-23 01:57:05,307 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-23 01:57:05,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 01:57:05,307 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:57:05,312 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 01:57:05,312 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 01:57:05,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:57:05 BasicIcfg [2024-11-23 01:57:05,316 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 01:57:05,316 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 01:57:05,316 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 01:57:05,317 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 01:57:05,317 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:57:01" (3/4) ... [2024-11-23 01:57:05,318 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-23 01:57:05,320 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-23 01:57:05,320 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-23 01:57:05,320 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-23 01:57:05,325 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 102 nodes and edges [2024-11-23 01:57:05,325 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-23 01:57:05,325 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-23 01:57:05,325 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-23 01:57:05,392 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-23 01:57:05,392 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-23 01:57:05,392 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 01:57:05,392 INFO L158 Benchmark]: Toolchain (without parser) took 5373.80ms. Allocated memory was 192.9MB in the beginning and 312.5MB in the end (delta: 119.5MB). Free memory was 121.1MB in the beginning and 218.7MB in the end (delta: -97.6MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2024-11-23 01:57:05,393 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 192.9MB. Free memory is still 151.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 01:57:05,393 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.11ms. Allocated memory is still 192.9MB. Free memory was 120.9MB in the beginning and 107.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-23 01:57:05,393 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.84ms. Allocated memory is still 192.9MB. Free memory was 107.0MB in the beginning and 104.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 01:57:05,393 INFO L158 Benchmark]: Boogie Preprocessor took 92.93ms. Allocated memory is still 192.9MB. Free memory was 104.9MB in the beginning and 102.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 01:57:05,393 INFO L158 Benchmark]: RCFGBuilder took 875.81ms. Allocated memory is still 192.9MB. Free memory was 102.0MB in the beginning and 129.7MB in the end (delta: -27.7MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2024-11-23 01:57:05,394 INFO L158 Benchmark]: TraceAbstraction took 4035.67ms. Allocated memory was 192.9MB in the beginning and 312.5MB in the end (delta: 119.5MB). Free memory was 128.7MB in the beginning and 223.9MB in the end (delta: -95.2MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2024-11-23 01:57:05,394 INFO L158 Benchmark]: Witness Printer took 75.72ms. Allocated memory is still 312.5MB. Free memory was 223.9MB in the beginning and 218.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-23 01:57:05,395 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 192.9MB. Free memory is still 151.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.11ms. Allocated memory is still 192.9MB. Free memory was 120.9MB in the beginning and 107.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.84ms. Allocated memory is still 192.9MB. Free memory was 107.0MB in the beginning and 104.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.93ms. Allocated memory is still 192.9MB. Free memory was 104.9MB in the beginning and 102.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 875.81ms. Allocated memory is still 192.9MB. Free memory was 102.0MB in the beginning and 129.7MB in the end (delta: -27.7MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4035.67ms. Allocated memory was 192.9MB in the beginning and 312.5MB in the end (delta: 119.5MB). Free memory was 128.7MB in the beginning and 223.9MB in the end (delta: -95.2MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * Witness Printer took 75.72ms. Allocated memory is still 312.5MB. Free memory was 223.9MB in the beginning and 218.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 130]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 111 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 416 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 325 mSDsluCounter, 122 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 841 IncrementalHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 61 mSDtfsCounter, 841 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 98 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=241occurred in iteration=6, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 289 NumberOfCodeBlocks, 265 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 317 ConstructedInterpolants, 0 QuantifiedInterpolants, 609 SizeOfPredicates, 10 NumberOfNonLiveVariables, 295 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 68/103 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-23 01:57:05,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE