./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:33:35,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:33:35,210 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:33:35,213 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:33:35,213 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:33:35,237 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:33:35,237 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:33:35,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:33:35,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:33:35,240 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:33:35,241 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:33:35,241 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:33:35,241 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:33:35,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:33:35,242 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:33:35,242 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:33:35,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:33:35,242 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:33:35,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:33:35,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:33:35,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:33:35,246 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:33:35,246 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:33:35,246 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:33:35,246 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:33:35,247 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:33:35,247 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:33:35,247 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:33:35,247 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:33:35,247 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:33:35,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:33:35,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:33:35,248 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:33:35,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:33:35,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:33:35,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:33:35,248 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:33:35,248 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:33:35,248 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:33:35,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:33:35,249 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:33:35,249 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:33:35,249 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:33:35,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:33:35,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2024-10-24 23:33:35,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:33:35,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:33:35,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:33:35,471 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:33:35,471 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:33:35,472 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-10-24 23:33:36,716 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:33:36,897 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:33:36,897 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-10-24 23:33:36,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f669d3da7/c9108bc4bfc14f85bf1ba8aa3cf4fb86/FLAG31536ebd4 [2024-10-24 23:33:36,927 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f669d3da7/c9108bc4bfc14f85bf1ba8aa3cf4fb86 [2024-10-24 23:33:36,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:33:36,930 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:33:36,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:33:36,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:33:36,936 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:33:36,936 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:33:36" (1/1) ... [2024-10-24 23:33:36,937 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d2df8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:36, skipping insertion in model container [2024-10-24 23:33:36,937 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:33:36" (1/1) ... [2024-10-24 23:33:36,980 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:33:37,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:33:37,310 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:33:37,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:33:37,386 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:33:37,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37 WrapperNode [2024-10-24 23:33:37,387 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:33:37,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:33:37,388 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:33:37,388 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:33:37,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37" (1/1) ... [2024-10-24 23:33:37,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37" (1/1) ... [2024-10-24 23:33:37,428 INFO L138 Inliner]: procedures = 163, calls = 55, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 117 [2024-10-24 23:33:37,428 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:33:37,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:33:37,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:33:37,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:33:37,439 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37" (1/1) ... [2024-10-24 23:33:37,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37" (1/1) ... [2024-10-24 23:33:37,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37" (1/1) ... [2024-10-24 23:33:37,453 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-24 23:33:37,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37" (1/1) ... [2024-10-24 23:33:37,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37" (1/1) ... [2024-10-24 23:33:37,460 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37" (1/1) ... [2024-10-24 23:33:37,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37" (1/1) ... [2024-10-24 23:33:37,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37" (1/1) ... [2024-10-24 23:33:37,471 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37" (1/1) ... [2024-10-24 23:33:37,474 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:33:37,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:33:37,474 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:33:37,475 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:33:37,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37" (1/1) ... [2024-10-24 23:33:37,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:33:37,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:33:37,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 23:33:37,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 23:33:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-24 23:33:37,557 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-24 23:33:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 23:33:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:33:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 23:33:37,557 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 23:33:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 23:33:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 23:33:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 23:33:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 23:33:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 23:33:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:33:37,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:33:37,559 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 23:33:37,658 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:33:37,660 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:33:37,878 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 23:33:37,878 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:33:38,029 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:33:38,029 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 23:33:38,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:33:38 BoogieIcfgContainer [2024-10-24 23:33:38,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:33:38,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:33:38,031 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:33:38,035 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:33:38,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:33:36" (1/3) ... [2024-10-24 23:33:38,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3eaf15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:33:38, skipping insertion in model container [2024-10-24 23:33:38,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:37" (2/3) ... [2024-10-24 23:33:38,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3eaf15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:33:38, skipping insertion in model container [2024-10-24 23:33:38,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:33:38" (3/3) ... [2024-10-24 23:33:38,039 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2024-10-24 23:33:38,053 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:33:38,053 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-24 23:33:38,053 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 23:33:38,097 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 23:33:38,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 76 transitions, 166 flow [2024-10-24 23:33:38,167 INFO L124 PetriNetUnfolderBase]: 0/74 cut-off events. [2024-10-24 23:33:38,167 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 23:33:38,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 74 events. 0/74 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 140 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-24 23:33:38,169 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 76 transitions, 166 flow [2024-10-24 23:33:38,172 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 72 transitions, 153 flow [2024-10-24 23:33:38,181 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:33:38,188 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;@5d18b04e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:33:38,188 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-24 23:33:38,194 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:33:38,197 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-10-24 23:33:38,197 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 23:33:38,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:38,198 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:38,199 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-24 23:33:38,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:38,204 INFO L85 PathProgramCache]: Analyzing trace with hash -2079473254, now seen corresponding path program 1 times [2024-10-24 23:33:38,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:38,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220376552] [2024-10-24 23:33:38,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:38,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:38,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:38,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220376552] [2024-10-24 23:33:38,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220376552] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:38,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:38,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:33:38,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387956482] [2024-10-24 23:33:38,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:38,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:33:38,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:38,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:33:38,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:33:38,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2024-10-24 23:33:38,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 72 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:38,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:38,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2024-10-24 23:33:38,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:39,626 INFO L124 PetriNetUnfolderBase]: 6129/11459 cut-off events. [2024-10-24 23:33:39,627 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-24 23:33:39,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21175 conditions, 11459 events. 6129/11459 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 87534 event pairs, 3238 based on Foata normal form. 218/11257 useless extension candidates. Maximal degree in co-relation 21049. Up to 6049 conditions per place. [2024-10-24 23:33:39,695 INFO L140 encePairwiseOnDemand]: 68/76 looper letters, 98 selfloop transitions, 7 changer transitions 4/135 dead transitions. [2024-10-24 23:33:39,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 135 transitions, 506 flow [2024-10-24 23:33:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:33:39,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:33:39,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 222 transitions. [2024-10-24 23:33:39,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7302631578947368 [2024-10-24 23:33:39,709 INFO L175 Difference]: Start difference. First operand has 79 places, 72 transitions, 153 flow. Second operand 4 states and 222 transitions. [2024-10-24 23:33:39,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 135 transitions, 506 flow [2024-10-24 23:33:39,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 135 transitions, 497 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:33:39,725 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 177 flow [2024-10-24 23:33:39,727 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=177, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2024-10-24 23:33:39,731 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 0 predicate places. [2024-10-24 23:33:39,731 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 177 flow [2024-10-24 23:33:39,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:39,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:39,732 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:39,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 23:33:39,733 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-24 23:33:39,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:39,733 INFO L85 PathProgramCache]: Analyzing trace with hash -39160871, now seen corresponding path program 1 times [2024-10-24 23:33:39,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:39,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502924398] [2024-10-24 23:33:39,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:39,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:39,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:39,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:39,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502924398] [2024-10-24 23:33:39,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502924398] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:39,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:39,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:33:39,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668665218] [2024-10-24 23:33:39,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:39,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:33:39,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:39,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:33:39,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:33:39,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2024-10-24 23:33:39,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 177 flow. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:39,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:39,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2024-10-24 23:33:39,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:40,835 INFO L124 PetriNetUnfolderBase]: 6965/13395 cut-off events. [2024-10-24 23:33:40,835 INFO L125 PetriNetUnfolderBase]: For 1970/1970 co-relation queries the response was YES. [2024-10-24 23:33:40,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25965 conditions, 13395 events. 6965/13395 cut-off events. For 1970/1970 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 109626 event pairs, 2238 based on Foata normal form. 218/13267 useless extension candidates. Maximal degree in co-relation 23025. Up to 5449 conditions per place. [2024-10-24 23:33:40,905 INFO L140 encePairwiseOnDemand]: 68/76 looper letters, 105 selfloop transitions, 10 changer transitions 0/141 dead transitions. [2024-10-24 23:33:40,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 141 transitions, 561 flow [2024-10-24 23:33:40,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:33:40,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:33:40,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2024-10-24 23:33:40,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7401315789473685 [2024-10-24 23:33:40,907 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 177 flow. Second operand 4 states and 225 transitions. [2024-10-24 23:33:40,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 141 transitions, 561 flow [2024-10-24 23:33:40,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 141 transitions, 551 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:33:40,916 INFO L231 Difference]: Finished difference. Result has 81 places, 77 transitions, 228 flow [2024-10-24 23:33:40,917 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=228, PETRI_PLACES=81, PETRI_TRANSITIONS=77} [2024-10-24 23:33:40,917 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 2 predicate places. [2024-10-24 23:33:40,917 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 77 transitions, 228 flow [2024-10-24 23:33:40,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:40,918 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:40,918 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:40,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 23:33:40,919 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-24 23:33:40,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:40,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1364991368, now seen corresponding path program 1 times [2024-10-24 23:33:40,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:40,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522967004] [2024-10-24 23:33:40,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:40,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:41,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:41,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522967004] [2024-10-24 23:33:41,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522967004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:41,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:41,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:33:41,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26383555] [2024-10-24 23:33:41,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:41,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:33:41,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:41,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:33:41,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:33:41,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 76 [2024-10-24 23:33:41,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 228 flow. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:41,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:41,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 76 [2024-10-24 23:33:41,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:42,388 INFO L124 PetriNetUnfolderBase]: 8807/17162 cut-off events. [2024-10-24 23:33:42,388 INFO L125 PetriNetUnfolderBase]: For 5907/5907 co-relation queries the response was YES. [2024-10-24 23:33:42,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35085 conditions, 17162 events. 8807/17162 cut-off events. For 5907/5907 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 147055 event pairs, 2309 based on Foata normal form. 330/17108 useless extension candidates. Maximal degree in co-relation 31340. Up to 7471 conditions per place. [2024-10-24 23:33:42,464 INFO L140 encePairwiseOnDemand]: 69/76 looper letters, 125 selfloop transitions, 5 changer transitions 0/154 dead transitions. [2024-10-24 23:33:42,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 154 transitions, 772 flow [2024-10-24 23:33:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:33:42,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:33:42,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 223 transitions. [2024-10-24 23:33:42,467 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7335526315789473 [2024-10-24 23:33:42,467 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 228 flow. Second operand 4 states and 223 transitions. [2024-10-24 23:33:42,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 154 transitions, 772 flow [2024-10-24 23:33:42,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 154 transitions, 748 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-10-24 23:33:42,474 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 242 flow [2024-10-24 23:33:42,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2024-10-24 23:33:42,475 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2024-10-24 23:33:42,476 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 242 flow [2024-10-24 23:33:42,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:42,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:42,476 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:42,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 23:33:42,477 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-24 23:33:42,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:42,477 INFO L85 PathProgramCache]: Analyzing trace with hash -867812034, now seen corresponding path program 1 times [2024-10-24 23:33:42,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:42,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078238195] [2024-10-24 23:33:42,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:42,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:42,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:42,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:42,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078238195] [2024-10-24 23:33:42,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078238195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:42,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:42,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:33:42,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358512354] [2024-10-24 23:33:42,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:42,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:33:42,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:42,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:33:42,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:33:42,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 76 [2024-10-24 23:33:42,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:42,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:42,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 76 [2024-10-24 23:33:42,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:43,801 INFO L124 PetriNetUnfolderBase]: 7460/14257 cut-off events. [2024-10-24 23:33:43,802 INFO L125 PetriNetUnfolderBase]: For 5601/5601 co-relation queries the response was YES. [2024-10-24 23:33:43,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29933 conditions, 14257 events. 7460/14257 cut-off events. For 5601/5601 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 115952 event pairs, 4467 based on Foata normal form. 494/14663 useless extension candidates. Maximal degree in co-relation 26080. Up to 7529 conditions per place. [2024-10-24 23:33:43,857 INFO L140 encePairwiseOnDemand]: 67/76 looper letters, 135 selfloop transitions, 5 changer transitions 0/162 dead transitions. [2024-10-24 23:33:43,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 162 transitions, 734 flow [2024-10-24 23:33:43,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:33:43,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:33:43,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 292 transitions. [2024-10-24 23:33:43,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6403508771929824 [2024-10-24 23:33:43,860 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 242 flow. Second operand 6 states and 292 transitions. [2024-10-24 23:33:43,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 162 transitions, 734 flow [2024-10-24 23:33:43,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 162 transitions, 704 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-24 23:33:43,875 INFO L231 Difference]: Finished difference. Result has 82 places, 72 transitions, 194 flow [2024-10-24 23:33:43,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=77, 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=6, PETRI_FLOW=194, PETRI_PLACES=82, PETRI_TRANSITIONS=72} [2024-10-24 23:33:43,876 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 3 predicate places. [2024-10-24 23:33:43,876 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 72 transitions, 194 flow [2024-10-24 23:33:43,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:43,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:43,877 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:43,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 23:33:43,877 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-24 23:33:43,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:43,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1132368707, now seen corresponding path program 1 times [2024-10-24 23:33:43,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:43,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050961475] [2024-10-24 23:33:43,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:43,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:43,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:43,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:43,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050961475] [2024-10-24 23:33:43,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050961475] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:43,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:43,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:33:43,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308427256] [2024-10-24 23:33:43,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:43,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:33:43,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:43,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:33:43,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:33:43,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 76 [2024-10-24 23:33:43,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 72 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:43,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:43,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 76 [2024-10-24 23:33:43,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:44,873 INFO L124 PetriNetUnfolderBase]: 7003/13526 cut-off events. [2024-10-24 23:33:44,873 INFO L125 PetriNetUnfolderBase]: For 3030/3030 co-relation queries the response was YES. [2024-10-24 23:33:44,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28009 conditions, 13526 events. 7003/13526 cut-off events. For 3030/3030 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 109550 event pairs, 4467 based on Foata normal form. 274/13712 useless extension candidates. Maximal degree in co-relation 24202. Up to 7529 conditions per place. [2024-10-24 23:33:44,916 INFO L140 encePairwiseOnDemand]: 70/76 looper letters, 114 selfloop transitions, 5 changer transitions 21/161 dead transitions. [2024-10-24 23:33:44,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 161 transitions, 710 flow [2024-10-24 23:33:44,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:33:44,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:33:44,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 285 transitions. [2024-10-24 23:33:44,918 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-10-24 23:33:44,918 INFO L175 Difference]: Start difference. First operand has 82 places, 72 transitions, 194 flow. Second operand 6 states and 285 transitions. [2024-10-24 23:33:44,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 161 transitions, 710 flow [2024-10-24 23:33:44,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 161 transitions, 700 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 23:33:44,923 INFO L231 Difference]: Finished difference. Result has 81 places, 65 transitions, 174 flow [2024-10-24 23:33:44,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=81, PETRI_TRANSITIONS=65} [2024-10-24 23:33:44,924 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 2 predicate places. [2024-10-24 23:33:44,924 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 65 transitions, 174 flow [2024-10-24 23:33:44,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:44,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:44,924 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:44,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 23:33:44,925 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-24 23:33:44,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:44,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1335611460, now seen corresponding path program 1 times [2024-10-24 23:33:44,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:44,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850791707] [2024-10-24 23:33:44,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:44,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:45,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:45,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:45,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850791707] [2024-10-24 23:33:45,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850791707] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:45,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:45,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:33:45,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031603922] [2024-10-24 23:33:45,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:45,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:33:45,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:45,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:33:45,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:33:45,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 76 [2024-10-24 23:33:45,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 65 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:45,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:45,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 76 [2024-10-24 23:33:45,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:45,676 INFO L124 PetriNetUnfolderBase]: 4043/7774 cut-off events. [2024-10-24 23:33:45,676 INFO L125 PetriNetUnfolderBase]: For 1942/1942 co-relation queries the response was YES. [2024-10-24 23:33:45,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16063 conditions, 7774 events. 4043/7774 cut-off events. For 1942/1942 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 58731 event pairs, 1183 based on Foata normal form. 354/8114 useless extension candidates. Maximal degree in co-relation 13802. Up to 2232 conditions per place. [2024-10-24 23:33:45,708 INFO L140 encePairwiseOnDemand]: 70/76 looper letters, 134 selfloop transitions, 4 changer transitions 0/157 dead transitions. [2024-10-24 23:33:45,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 157 transitions, 701 flow [2024-10-24 23:33:45,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:33:45,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:33:45,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 285 transitions. [2024-10-24 23:33:45,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-10-24 23:33:45,710 INFO L175 Difference]: Start difference. First operand has 81 places, 65 transitions, 174 flow. Second operand 6 states and 285 transitions. [2024-10-24 23:33:45,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 157 transitions, 701 flow [2024-10-24 23:33:45,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 157 transitions, 661 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-24 23:33:45,713 INFO L231 Difference]: Finished difference. Result has 72 places, 63 transitions, 158 flow [2024-10-24 23:33:45,714 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=158, PETRI_PLACES=72, PETRI_TRANSITIONS=63} [2024-10-24 23:33:45,715 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, -7 predicate places. [2024-10-24 23:33:45,716 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 63 transitions, 158 flow [2024-10-24 23:33:45,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:45,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:33:45,716 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:45,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 23:33:45,717 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-24 23:33:45,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:33:45,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1545718250, now seen corresponding path program 1 times [2024-10-24 23:33:45,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:33:45,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357018712] [2024-10-24 23:33:45,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:33:45,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:33:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:33:45,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:33:45,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:33:45,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357018712] [2024-10-24 23:33:45,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357018712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:33:45,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:33:45,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:33:45,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439348717] [2024-10-24 23:33:45,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:33:45,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:33:45,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:33:45,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:33:45,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:33:45,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 76 [2024-10-24 23:33:45,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 63 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:45,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:33:45,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 76 [2024-10-24 23:33:45,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:33:46,262 INFO L124 PetriNetUnfolderBase]: 3573/7030 cut-off events. [2024-10-24 23:33:46,263 INFO L125 PetriNetUnfolderBase]: For 1452/1452 co-relation queries the response was YES. [2024-10-24 23:33:46,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14140 conditions, 7030 events. 3573/7030 cut-off events. For 1452/1452 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 53151 event pairs, 1183 based on Foata normal form. 274/7290 useless extension candidates. Maximal degree in co-relation 12068. Up to 2232 conditions per place. [2024-10-24 23:33:46,278 INFO L140 encePairwiseOnDemand]: 71/76 looper letters, 0 selfloop transitions, 0 changer transitions 156/156 dead transitions. [2024-10-24 23:33:46,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 156 transitions, 665 flow [2024-10-24 23:33:46,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:33:46,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:33:46,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 282 transitions. [2024-10-24 23:33:46,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.618421052631579 [2024-10-24 23:33:46,279 INFO L175 Difference]: Start difference. First operand has 72 places, 63 transitions, 158 flow. Second operand 6 states and 282 transitions. [2024-10-24 23:33:46,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 156 transitions, 665 flow [2024-10-24 23:33:46,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 156 transitions, 658 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 23:33:46,284 INFO L231 Difference]: Finished difference. Result has 72 places, 0 transitions, 0 flow [2024-10-24 23:33:46,284 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=72, PETRI_TRANSITIONS=0} [2024-10-24 23:33:46,284 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, -7 predicate places. [2024-10-24 23:33:46,285 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 0 transitions, 0 flow [2024-10-24 23:33:46,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:33:46,287 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-10-24 23:33:46,287 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-10-24 23:33:46,288 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-10-24 23:33:46,288 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-10-24 23:33:46,288 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 18 remaining) [2024-10-24 23:33:46,288 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 18 remaining) [2024-10-24 23:33:46,288 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-10-24 23:33:46,288 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-10-24 23:33:46,288 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2024-10-24 23:33:46,289 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2024-10-24 23:33:46,289 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-10-24 23:33:46,289 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-10-24 23:33:46,289 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-10-24 23:33:46,289 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-10-24 23:33:46,289 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-10-24 23:33:46,289 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-10-24 23:33:46,289 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-10-24 23:33:46,290 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-10-24 23:33:46,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 23:33:46,290 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:33:46,294 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 23:33:46,295 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 23:33:46,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:33:46 BasicIcfg [2024-10-24 23:33:46,299 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 23:33:46,300 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 23:33:46,300 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 23:33:46,300 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 23:33:46,300 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:33:38" (3/4) ... [2024-10-24 23:33:46,302 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 23:33:46,304 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2024-10-24 23:33:46,304 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-10-24 23:33:46,307 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2024-10-24 23:33:46,307 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-24 23:33:46,307 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 23:33:46,308 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 23:33:46,384 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 23:33:46,386 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 23:33:46,386 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 23:33:46,387 INFO L158 Benchmark]: Toolchain (without parser) took 9456.67ms. Allocated memory was 165.7MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 98.1MB in the beginning and 771.8MB in the end (delta: -673.6MB). Peak memory consumption was 689.5MB. Max. memory is 16.1GB. [2024-10-24 23:33:46,387 INFO L158 Benchmark]: CDTParser took 0.92ms. Allocated memory is still 92.3MB. Free memory was 47.2MB in the beginning and 47.2MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:33:46,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.54ms. Allocated memory is still 165.7MB. Free memory was 98.1MB in the beginning and 124.7MB in the end (delta: -26.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 23:33:46,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.54ms. Allocated memory is still 165.7MB. Free memory was 124.7MB in the beginning and 122.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:33:46,387 INFO L158 Benchmark]: Boogie Preprocessor took 43.27ms. Allocated memory is still 165.7MB. Free memory was 121.7MB in the beginning and 119.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:33:46,388 INFO L158 Benchmark]: RCFGBuilder took 555.22ms. Allocated memory is still 165.7MB. Free memory was 119.6MB in the beginning and 72.3MB in the end (delta: 47.3MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-10-24 23:33:46,388 INFO L158 Benchmark]: TraceAbstraction took 8268.06ms. Allocated memory was 165.7MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 71.4MB in the beginning and 775.9MB in the end (delta: -704.6MB). Peak memory consumption was 659.5MB. Max. memory is 16.1GB. [2024-10-24 23:33:46,388 INFO L158 Benchmark]: Witness Printer took 86.54ms. Allocated memory is still 1.5GB. Free memory was 775.9MB in the beginning and 771.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 23:33:46,392 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92ms. Allocated memory is still 92.3MB. Free memory was 47.2MB in the beginning and 47.2MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 455.54ms. Allocated memory is still 165.7MB. Free memory was 98.1MB in the beginning and 124.7MB in the end (delta: -26.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.54ms. Allocated memory is still 165.7MB. Free memory was 124.7MB in the beginning and 122.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.27ms. Allocated memory is still 165.7MB. Free memory was 121.7MB in the beginning and 119.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.22ms. Allocated memory is still 165.7MB. Free memory was 119.6MB in the beginning and 72.3MB in the end (delta: 47.3MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 8268.06ms. Allocated memory was 165.7MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 71.4MB in the beginning and 775.9MB in the end (delta: -704.6MB). Peak memory consumption was 659.5MB. Max. memory is 16.1GB. * Witness Printer took 86.54ms. Allocated memory is still 1.5GB. Free memory was 775.9MB in the beginning and 771.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 691]: 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 5 procedures, 123 locations, 18 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: 8.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 814 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 776 mSDsluCounter, 124 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2013 IncrementalHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 37 mSDtfsCounter, 2013 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=242occurred in iteration=3, InterpolantAutomatonStates: 36, 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, 0.5s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 23:33:46,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE