./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.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 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:58:25,241 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:58:25,328 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:58:25,332 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:58:25,333 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:58:25,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:58:25,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:58:25,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:58:25,357 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:58:25,359 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:58:25,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:58:25,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:58:25,361 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:58:25,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:58:25,361 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:58:25,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:58:25,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:58:25,362 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:58:25,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:58:25,366 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:58:25,366 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:58:25,368 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:58:25,368 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:58:25,368 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:58:25,369 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:58:25,369 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:58:25,369 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:58:25,375 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:58:25,375 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:58:25,376 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:58:25,376 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:58:25,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:58:25,376 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:58:25,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:58:25,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:58:25,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:58:25,377 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:58:25,378 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:58:25,378 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:58:25,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:58:25,379 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:58:25,381 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:58:25,381 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:58:25,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:58:25,382 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 [2024-11-17 07:58:25,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:58:25,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:58:25,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:58:25,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:58:25,658 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:58:25,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2024-11-17 07:58:27,130 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:58:27,385 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:58:27,386 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2024-11-17 07:58:27,403 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ffb617e/839950c942954fd38ff0a5a6f6cb64f6/FLAG9d6453a64 [2024-11-17 07:58:27,419 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ffb617e/839950c942954fd38ff0a5a6f6cb64f6 [2024-11-17 07:58:27,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:58:27,423 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:58:27,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:58:27,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:58:27,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:58:27,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:58:27" (1/1) ... [2024-11-17 07:58:27,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a9e0354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:27, skipping insertion in model container [2024-11-17 07:58:27,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:58:27" (1/1) ... [2024-11-17 07:58:27,478 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:58:27,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:58:27,987 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:58:28,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:58:28,122 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:58:28,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28 WrapperNode [2024-11-17 07:58:28,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:58:28,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:58:28,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:58:28,125 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:58:28,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28" (1/1) ... [2024-11-17 07:58:28,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28" (1/1) ... [2024-11-17 07:58:28,192 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 262 [2024-11-17 07:58:28,194 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:58:28,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:58:28,195 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:58:28,195 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:58:28,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28" (1/1) ... [2024-11-17 07:58:28,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28" (1/1) ... [2024-11-17 07:58:28,214 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28" (1/1) ... [2024-11-17 07:58:28,240 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2024-11-17 07:58:28,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28" (1/1) ... [2024-11-17 07:58:28,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28" (1/1) ... [2024-11-17 07:58:28,256 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28" (1/1) ... [2024-11-17 07:58:28,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28" (1/1) ... [2024-11-17 07:58:28,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28" (1/1) ... [2024-11-17 07:58:28,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28" (1/1) ... [2024-11-17 07:58:28,274 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:58:28,275 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:58:28,275 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:58:28,276 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:58:28,276 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28" (1/1) ... [2024-11-17 07:58:28,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:58:28,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:58:28,317 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) [2024-11-17 07:58:28,321 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 [2024-11-17 07:58:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-17 07:58:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-17 07:58:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-17 07:58:28,376 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:58:28,376 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:58:28,377 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:58:28,377 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:58:28,377 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:58:28,377 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:58:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:58:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:58:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:58:28,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 07:58:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:58:28,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:58:28,381 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:58:28,588 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:58:28,590 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:58:29,032 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:58:29,033 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:58:29,785 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:58:29,787 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:58:29,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:58:29 BoogieIcfgContainer [2024-11-17 07:58:29,787 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:58:29,790 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:58:29,790 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:58:29,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:58:29,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:58:27" (1/3) ... [2024-11-17 07:58:29,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4638fd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:58:29, skipping insertion in model container [2024-11-17 07:58:29,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:58:28" (2/3) ... [2024-11-17 07:58:29,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4638fd53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:58:29, skipping insertion in model container [2024-11-17 07:58:29,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:58:29" (3/3) ... [2024-11-17 07:58:29,798 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2024-11-17 07:58:29,818 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:58:29,818 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-17 07:58:29,818 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:58:29,956 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 07:58:29,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 60 transitions, 134 flow [2024-11-17 07:58:30,057 INFO L124 PetriNetUnfolderBase]: 8/58 cut-off events. [2024-11-17 07:58:30,059 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 07:58:30,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 58 events. 8/58 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 149 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-17 07:58:30,063 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 60 transitions, 134 flow [2024-11-17 07:58:30,068 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 56 transitions, 121 flow [2024-11-17 07:58:30,081 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:58:30,087 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;@1a857a4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:58:30,088 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-17 07:58:30,114 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:58:30,114 INFO L124 PetriNetUnfolderBase]: 4/30 cut-off events. [2024-11-17 07:58:30,115 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:58:30,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:30,116 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:58:30,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:30,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:30,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1657247531, now seen corresponding path program 1 times [2024-11-17 07:58:30,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:30,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162915707] [2024-11-17 07:58:30,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:30,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:30,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:30,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:30,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162915707] [2024-11-17 07:58:30,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162915707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:30,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:30,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:58:30,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107101454] [2024-11-17 07:58:30,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:30,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 07:58:30,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:30,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 07:58:30,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 07:58:30,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 60 [2024-11-17 07:58:30,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 56 transitions, 121 flow. Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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) [2024-11-17 07:58:30,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:30,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 60 [2024-11-17 07:58:30,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:31,191 INFO L124 PetriNetUnfolderBase]: 346/904 cut-off events. [2024-11-17 07:58:31,192 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-17 07:58:31,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1479 conditions, 904 events. 346/904 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5789 event pairs, 236 based on Foata normal form. 105/842 useless extension candidates. Maximal degree in co-relation 1412. Up to 543 conditions per place. [2024-11-17 07:58:31,205 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 25 selfloop transitions, 0 changer transitions 0/52 dead transitions. [2024-11-17 07:58:31,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 52 transitions, 163 flow [2024-11-17 07:58:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 07:58:31,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-17 07:58:31,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 87 transitions. [2024-11-17 07:58:31,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-11-17 07:58:31,220 INFO L175 Difference]: Start difference. First operand has 55 places, 56 transitions, 121 flow. Second operand 2 states and 87 transitions. [2024-11-17 07:58:31,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 52 transitions, 163 flow [2024-11-17 07:58:31,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 158 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:58:31,229 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 108 flow [2024-11-17 07:58:31,233 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=108, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2024-11-17 07:58:31,239 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, -2 predicate places. [2024-11-17 07:58:31,239 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 108 flow [2024-11-17 07:58:31,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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) [2024-11-17 07:58:31,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:31,241 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:58:31,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:58:31,242 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:31,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:31,243 INFO L85 PathProgramCache]: Analyzing trace with hash -164965173, now seen corresponding path program 1 times [2024-11-17 07:58:31,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:31,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865896985] [2024-11-17 07:58:31,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:31,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:31,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:31,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:31,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865896985] [2024-11-17 07:58:31,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865896985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:31,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:31,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:58:31,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461336674] [2024-11-17 07:58:31,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:31,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:58:31,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:31,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:58:31,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:58:31,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 60 [2024-11-17 07:58:31,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2024-11-17 07:58:31,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:31,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 60 [2024-11-17 07:58:31,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:32,105 INFO L124 PetriNetUnfolderBase]: 956/2181 cut-off events. [2024-11-17 07:58:32,105 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-17 07:58:32,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3705 conditions, 2181 events. 956/2181 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 13593 event pairs, 293 based on Foata normal form. 38/1959 useless extension candidates. Maximal degree in co-relation 3702. Up to 700 conditions per place. [2024-11-17 07:58:32,128 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 72 selfloop transitions, 12 changer transitions 0/106 dead transitions. [2024-11-17 07:58:32,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 106 transitions, 387 flow [2024-11-17 07:58:32,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:58:32,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:58:32,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 206 transitions. [2024-11-17 07:58:32,132 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6866666666666666 [2024-11-17 07:58:32,133 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 108 flow. Second operand 5 states and 206 transitions. [2024-11-17 07:58:32,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 106 transitions, 387 flow [2024-11-17 07:58:32,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 106 transitions, 387 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:58:32,139 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 200 flow [2024-11-17 07:58:32,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=200, PETRI_PLACES=61, PETRI_TRANSITIONS=63} [2024-11-17 07:58:32,140 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 6 predicate places. [2024-11-17 07:58:32,140 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 200 flow [2024-11-17 07:58:32,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2024-11-17 07:58:32,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:32,141 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:58:32,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:58:32,142 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:32,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:32,143 INFO L85 PathProgramCache]: Analyzing trace with hash -818952372, now seen corresponding path program 1 times [2024-11-17 07:58:32,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:32,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547979912] [2024-11-17 07:58:32,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:32,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:32,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:32,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547979912] [2024-11-17 07:58:32,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547979912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:32,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:32,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:58:32,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044400203] [2024-11-17 07:58:32,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:32,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:58:32,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:32,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:58:32,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:58:32,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 60 [2024-11-17 07:58:32,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 200 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-17 07:58:32,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:32,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 60 [2024-11-17 07:58:32,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:32,998 INFO L124 PetriNetUnfolderBase]: 1152/2516 cut-off events. [2024-11-17 07:58:32,998 INFO L125 PetriNetUnfolderBase]: For 1326/1326 co-relation queries the response was YES. [2024-11-17 07:58:33,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5304 conditions, 2516 events. 1152/2516 cut-off events. For 1326/1326 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 14878 event pairs, 350 based on Foata normal form. 67/2421 useless extension candidates. Maximal degree in co-relation 5297. Up to 1436 conditions per place. [2024-11-17 07:58:33,017 INFO L140 encePairwiseOnDemand]: 53/60 looper letters, 63 selfloop transitions, 8 changer transitions 2/94 dead transitions. [2024-11-17 07:58:33,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 94 transitions, 441 flow [2024-11-17 07:58:33,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:58:33,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:58:33,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 158 transitions. [2024-11-17 07:58:33,020 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6583333333333333 [2024-11-17 07:58:33,020 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 200 flow. Second operand 4 states and 158 transitions. [2024-11-17 07:58:33,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 94 transitions, 441 flow [2024-11-17 07:58:33,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 94 transitions, 441 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:58:33,026 INFO L231 Difference]: Finished difference. Result has 67 places, 67 transitions, 270 flow [2024-11-17 07:58:33,027 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=270, PETRI_PLACES=67, PETRI_TRANSITIONS=67} [2024-11-17 07:58:33,028 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 12 predicate places. [2024-11-17 07:58:33,029 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 67 transitions, 270 flow [2024-11-17 07:58:33,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-11-17 07:58:33,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:33,029 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:58:33,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:58:33,030 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:33,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:33,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1995120243, now seen corresponding path program 1 times [2024-11-17 07:58:33,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:33,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49583769] [2024-11-17 07:58:33,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:33,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:33,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:33,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:33,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49583769] [2024-11-17 07:58:33,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49583769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:33,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:33,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:58:33,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918765136] [2024-11-17 07:58:33,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:33,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:58:33,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:33,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:58:33,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:58:33,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 60 [2024-11-17 07:58:33,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 67 transitions, 270 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-17 07:58:33,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:33,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 60 [2024-11-17 07:58:33,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:33,704 INFO L124 PetriNetUnfolderBase]: 1177/2797 cut-off events. [2024-11-17 07:58:33,704 INFO L125 PetriNetUnfolderBase]: For 1778/1824 co-relation queries the response was YES. [2024-11-17 07:58:33,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5977 conditions, 2797 events. 1177/2797 cut-off events. For 1778/1824 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 18393 event pairs, 599 based on Foata normal form. 52/2619 useless extension candidates. Maximal degree in co-relation 5967. Up to 1440 conditions per place. [2024-11-17 07:58:33,726 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 65 selfloop transitions, 3 changer transitions 0/100 dead transitions. [2024-11-17 07:58:33,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 100 transitions, 500 flow [2024-11-17 07:58:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:58:33,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:58:33,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 166 transitions. [2024-11-17 07:58:33,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2024-11-17 07:58:33,730 INFO L175 Difference]: Start difference. First operand has 67 places, 67 transitions, 270 flow. Second operand 4 states and 166 transitions. [2024-11-17 07:58:33,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 100 transitions, 500 flow [2024-11-17 07:58:33,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 100 transitions, 500 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:58:33,740 INFO L231 Difference]: Finished difference. Result has 72 places, 69 transitions, 294 flow [2024-11-17 07:58:33,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=294, PETRI_PLACES=72, PETRI_TRANSITIONS=69} [2024-11-17 07:58:33,742 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 17 predicate places. [2024-11-17 07:58:33,743 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 69 transitions, 294 flow [2024-11-17 07:58:33,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-17 07:58:33,743 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:33,743 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] [2024-11-17 07:58:33,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:58:33,744 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:33,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:33,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1453549990, now seen corresponding path program 1 times [2024-11-17 07:58:33,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:33,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402216555] [2024-11-17 07:58:33,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:33,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:34,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:34,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:34,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402216555] [2024-11-17 07:58:34,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402216555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:34,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:34,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:58:34,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327186470] [2024-11-17 07:58:34,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:34,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:58:34,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:34,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:58:34,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:58:34,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 60 [2024-11-17 07:58:34,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 69 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-17 07:58:34,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:34,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 60 [2024-11-17 07:58:34,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:34,340 INFO L124 PetriNetUnfolderBase]: 516/1554 cut-off events. [2024-11-17 07:58:34,340 INFO L125 PetriNetUnfolderBase]: For 988/1008 co-relation queries the response was YES. [2024-11-17 07:58:34,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3317 conditions, 1554 events. 516/1554 cut-off events. For 988/1008 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9808 event pairs, 188 based on Foata normal form. 48/1518 useless extension candidates. Maximal degree in co-relation 3304. Up to 420 conditions per place. [2024-11-17 07:58:34,351 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 36 selfloop transitions, 8 changer transitions 0/77 dead transitions. [2024-11-17 07:58:34,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 77 transitions, 379 flow [2024-11-17 07:58:34,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:58:34,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:58:34,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-11-17 07:58:34,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2024-11-17 07:58:34,353 INFO L175 Difference]: Start difference. First operand has 72 places, 69 transitions, 294 flow. Second operand 3 states and 128 transitions. [2024-11-17 07:58:34,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 77 transitions, 379 flow [2024-11-17 07:58:34,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 77 transitions, 360 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-11-17 07:58:34,362 INFO L231 Difference]: Finished difference. Result has 72 places, 63 transitions, 245 flow [2024-11-17 07:58:34,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=245, PETRI_PLACES=72, PETRI_TRANSITIONS=63} [2024-11-17 07:58:34,363 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 17 predicate places. [2024-11-17 07:58:34,364 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 63 transitions, 245 flow [2024-11-17 07:58:34,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-17 07:58:34,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:34,364 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] [2024-11-17 07:58:34,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:58:34,365 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:34,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:34,365 INFO L85 PathProgramCache]: Analyzing trace with hash -265264184, now seen corresponding path program 1 times [2024-11-17 07:58:34,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:34,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90262255] [2024-11-17 07:58:34,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:34,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:34,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:34,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90262255] [2024-11-17 07:58:34,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90262255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:34,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:34,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:58:34,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453614957] [2024-11-17 07:58:34,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:34,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:58:34,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:34,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:58:34,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:58:34,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 60 [2024-11-17 07:58:34,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 63 transitions, 245 flow. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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) [2024-11-17 07:58:34,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:34,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 60 [2024-11-17 07:58:34,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:35,155 INFO L124 PetriNetUnfolderBase]: 666/1631 cut-off events. [2024-11-17 07:58:35,155 INFO L125 PetriNetUnfolderBase]: For 1128/1174 co-relation queries the response was YES. [2024-11-17 07:58:35,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3698 conditions, 1631 events. 666/1631 cut-off events. For 1128/1174 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 8947 event pairs, 169 based on Foata normal form. 82/1644 useless extension candidates. Maximal degree in co-relation 3686. Up to 494 conditions per place. [2024-11-17 07:58:35,167 INFO L140 encePairwiseOnDemand]: 49/60 looper letters, 62 selfloop transitions, 10 changer transitions 0/90 dead transitions. [2024-11-17 07:58:35,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 90 transitions, 459 flow [2024-11-17 07:58:35,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:58:35,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:58:35,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2024-11-17 07:58:35,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5138888888888888 [2024-11-17 07:58:35,170 INFO L175 Difference]: Start difference. First operand has 72 places, 63 transitions, 245 flow. Second operand 6 states and 185 transitions. [2024-11-17 07:58:35,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 90 transitions, 459 flow [2024-11-17 07:58:35,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 90 transitions, 438 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-17 07:58:35,174 INFO L231 Difference]: Finished difference. Result has 72 places, 59 transitions, 242 flow [2024-11-17 07:58:35,174 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=242, PETRI_PLACES=72, PETRI_TRANSITIONS=59} [2024-11-17 07:58:35,175 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 17 predicate places. [2024-11-17 07:58:35,175 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 59 transitions, 242 flow [2024-11-17 07:58:35,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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) [2024-11-17 07:58:35,175 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:35,176 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] [2024-11-17 07:58:35,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:58:35,176 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:35,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:35,177 INFO L85 PathProgramCache]: Analyzing trace with hash -2050413708, now seen corresponding path program 1 times [2024-11-17 07:58:35,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:35,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956364469] [2024-11-17 07:58:35,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:35,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:35,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:35,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:35,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956364469] [2024-11-17 07:58:35,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956364469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:35,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:35,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:58:35,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354499291] [2024-11-17 07:58:35,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:35,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:58:35,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:35,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:58:35,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:58:35,615 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 60 [2024-11-17 07:58:35,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 59 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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) [2024-11-17 07:58:35,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:35,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 60 [2024-11-17 07:58:35,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:35,966 INFO L124 PetriNetUnfolderBase]: 819/2058 cut-off events. [2024-11-17 07:58:35,966 INFO L125 PetriNetUnfolderBase]: For 1906/1960 co-relation queries the response was YES. [2024-11-17 07:58:35,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4742 conditions, 2058 events. 819/2058 cut-off events. For 1906/1960 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 11801 event pairs, 257 based on Foata normal form. 30/1992 useless extension candidates. Maximal degree in co-relation 4730. Up to 656 conditions per place. [2024-11-17 07:58:35,981 INFO L140 encePairwiseOnDemand]: 52/60 looper letters, 78 selfloop transitions, 10 changer transitions 4/110 dead transitions. [2024-11-17 07:58:35,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 110 transitions, 619 flow [2024-11-17 07:58:35,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:58:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:58:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 200 transitions. [2024-11-17 07:58:35,983 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-11-17 07:58:35,983 INFO L175 Difference]: Start difference. First operand has 72 places, 59 transitions, 242 flow. Second operand 6 states and 200 transitions. [2024-11-17 07:58:35,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 110 transitions, 619 flow [2024-11-17 07:58:35,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 110 transitions, 600 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:58:35,988 INFO L231 Difference]: Finished difference. Result has 76 places, 64 transitions, 305 flow [2024-11-17 07:58:35,989 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=305, PETRI_PLACES=76, PETRI_TRANSITIONS=64} [2024-11-17 07:58:35,989 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 21 predicate places. [2024-11-17 07:58:35,990 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 64 transitions, 305 flow [2024-11-17 07:58:35,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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) [2024-11-17 07:58:35,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:35,990 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] [2024-11-17 07:58:35,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:58:35,990 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:35,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:35,991 INFO L85 PathProgramCache]: Analyzing trace with hash -849113762, now seen corresponding path program 1 times [2024-11-17 07:58:35,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:35,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238357308] [2024-11-17 07:58:35,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:35,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:36,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:36,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:36,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238357308] [2024-11-17 07:58:36,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238357308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:36,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:36,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:58:36,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070168129] [2024-11-17 07:58:36,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:36,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:58:36,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:36,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:58:36,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:58:36,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 60 [2024-11-17 07:58:36,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 64 transitions, 305 flow. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 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) [2024-11-17 07:58:36,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:36,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 60 [2024-11-17 07:58:36,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:36,667 INFO L124 PetriNetUnfolderBase]: 1000/2675 cut-off events. [2024-11-17 07:58:36,667 INFO L125 PetriNetUnfolderBase]: For 2219/2235 co-relation queries the response was YES. [2024-11-17 07:58:36,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6004 conditions, 2675 events. 1000/2675 cut-off events. For 2219/2235 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17677 event pairs, 603 based on Foata normal form. 64/2633 useless extension candidates. Maximal degree in co-relation 5990. Up to 1329 conditions per place. [2024-11-17 07:58:36,691 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 66 selfloop transitions, 3 changer transitions 0/98 dead transitions. [2024-11-17 07:58:36,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 98 transitions, 584 flow [2024-11-17 07:58:36,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:58:36,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:58:36,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 164 transitions. [2024-11-17 07:58:36,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2024-11-17 07:58:36,694 INFO L175 Difference]: Start difference. First operand has 76 places, 64 transitions, 305 flow. Second operand 4 states and 164 transitions. [2024-11-17 07:58:36,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 98 transitions, 584 flow [2024-11-17 07:58:36,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 98 transitions, 577 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:58:36,701 INFO L231 Difference]: Finished difference. Result has 79 places, 66 transitions, 323 flow [2024-11-17 07:58:36,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=323, PETRI_PLACES=79, PETRI_TRANSITIONS=66} [2024-11-17 07:58:36,704 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 24 predicate places. [2024-11-17 07:58:36,705 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 66 transitions, 323 flow [2024-11-17 07:58:36,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 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) [2024-11-17 07:58:36,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:36,705 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:58:36,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:58:36,706 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:36,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:36,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1242177272, now seen corresponding path program 1 times [2024-11-17 07:58:36,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:36,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035832417] [2024-11-17 07:58:36,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:36,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:36,993 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-17 07:58:36,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:36,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035832417] [2024-11-17 07:58:36,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035832417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:36,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:36,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:58:36,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910010360] [2024-11-17 07:58:36,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:36,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:58:36,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:36,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:58:36,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:58:37,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 60 [2024-11-17 07:58:37,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 66 transitions, 323 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-17 07:58:37,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:37,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 60 [2024-11-17 07:58:37,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:37,320 INFO L124 PetriNetUnfolderBase]: 903/2392 cut-off events. [2024-11-17 07:58:37,321 INFO L125 PetriNetUnfolderBase]: For 2960/3017 co-relation queries the response was YES. [2024-11-17 07:58:37,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5977 conditions, 2392 events. 903/2392 cut-off events. For 2960/3017 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 14943 event pairs, 352 based on Foata normal form. 12/2356 useless extension candidates. Maximal degree in co-relation 5960. Up to 1260 conditions per place. [2024-11-17 07:58:37,343 INFO L140 encePairwiseOnDemand]: 54/60 looper letters, 62 selfloop transitions, 9 changer transitions 2/94 dead transitions. [2024-11-17 07:58:37,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 94 transitions, 573 flow [2024-11-17 07:58:37,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:58:37,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:58:37,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-11-17 07:58:37,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2024-11-17 07:58:37,345 INFO L175 Difference]: Start difference. First operand has 79 places, 66 transitions, 323 flow. Second operand 4 states and 146 transitions. [2024-11-17 07:58:37,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 94 transitions, 573 flow [2024-11-17 07:58:37,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 94 transitions, 567 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:58:37,350 INFO L231 Difference]: Finished difference. Result has 80 places, 66 transitions, 349 flow [2024-11-17 07:58:37,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=349, PETRI_PLACES=80, PETRI_TRANSITIONS=66} [2024-11-17 07:58:37,351 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 25 predicate places. [2024-11-17 07:58:37,351 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 66 transitions, 349 flow [2024-11-17 07:58:37,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-17 07:58:37,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:37,351 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:58:37,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 07:58:37,352 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:37,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:37,352 INFO L85 PathProgramCache]: Analyzing trace with hash -840982473, now seen corresponding path program 1 times [2024-11-17 07:58:37,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:37,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208979708] [2024-11-17 07:58:37,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:37,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:37,740 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:37,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:37,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208979708] [2024-11-17 07:58:37,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208979708] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:58:37,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218344704] [2024-11-17 07:58:37,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:37,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:58:37,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:58:37,746 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) [2024-11-17 07:58:37,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:58:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:38,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:58:38,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:58:38,327 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:38,327 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:58:38,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218344704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:38,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:58:38,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-17 07:58:38,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307373120] [2024-11-17 07:58:38,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:38,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:58:38,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:38,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:58:38,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-17 07:58:38,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 60 [2024-11-17 07:58:38,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 66 transitions, 349 flow. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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) [2024-11-17 07:58:38,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:38,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 60 [2024-11-17 07:58:38,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:38,696 INFO L124 PetriNetUnfolderBase]: 1095/2650 cut-off events. [2024-11-17 07:58:38,696 INFO L125 PetriNetUnfolderBase]: For 3307/3350 co-relation queries the response was YES. [2024-11-17 07:58:38,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6788 conditions, 2650 events. 1095/2650 cut-off events. For 3307/3350 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 16491 event pairs, 284 based on Foata normal form. 52/2610 useless extension candidates. Maximal degree in co-relation 6771. Up to 1245 conditions per place. [2024-11-17 07:58:38,716 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 57 selfloop transitions, 5 changer transitions 0/90 dead transitions. [2024-11-17 07:58:38,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 90 transitions, 576 flow [2024-11-17 07:58:38,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:58:38,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:58:38,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 149 transitions. [2024-11-17 07:58:38,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6208333333333333 [2024-11-17 07:58:38,717 INFO L175 Difference]: Start difference. First operand has 80 places, 66 transitions, 349 flow. Second operand 4 states and 149 transitions. [2024-11-17 07:58:38,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 90 transitions, 576 flow [2024-11-17 07:58:38,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 90 transitions, 561 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-17 07:58:38,723 INFO L231 Difference]: Finished difference. Result has 80 places, 65 transitions, 340 flow [2024-11-17 07:58:38,724 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=340, PETRI_PLACES=80, PETRI_TRANSITIONS=65} [2024-11-17 07:58:38,724 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 25 predicate places. [2024-11-17 07:58:38,725 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 65 transitions, 340 flow [2024-11-17 07:58:38,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 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) [2024-11-17 07:58:38,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:38,725 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:58:38,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 07:58:38,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-17 07:58:38,926 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:38,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:38,927 INFO L85 PathProgramCache]: Analyzing trace with hash -533127888, now seen corresponding path program 1 times [2024-11-17 07:58:38,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:38,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549889536] [2024-11-17 07:58:38,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:38,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:39,263 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:39,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:39,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549889536] [2024-11-17 07:58:39,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549889536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:58:39,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634673269] [2024-11-17 07:58:39,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:39,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:58:39,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:58:39,266 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) [2024-11-17 07:58:39,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:58:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:39,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:58:39,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:58:39,873 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:58:39,873 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:58:39,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634673269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:39,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:58:39,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-17 07:58:39,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814345406] [2024-11-17 07:58:39,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:39,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:58:39,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:39,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:58:39,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:58:39,891 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 60 [2024-11-17 07:58:39,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 65 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 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) [2024-11-17 07:58:39,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:39,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 60 [2024-11-17 07:58:39,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:40,333 INFO L124 PetriNetUnfolderBase]: 940/2357 cut-off events. [2024-11-17 07:58:40,334 INFO L125 PetriNetUnfolderBase]: For 3411/3461 co-relation queries the response was YES. [2024-11-17 07:58:40,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6085 conditions, 2357 events. 940/2357 cut-off events. For 3411/3461 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 14345 event pairs, 102 based on Foata normal form. 55/2328 useless extension candidates. Maximal degree in co-relation 6067. Up to 897 conditions per place. [2024-11-17 07:58:40,353 INFO L140 encePairwiseOnDemand]: 56/60 looper letters, 85 selfloop transitions, 5 changer transitions 0/118 dead transitions. [2024-11-17 07:58:40,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 118 transitions, 776 flow [2024-11-17 07:58:40,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:58:40,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:58:40,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 233 transitions. [2024-11-17 07:58:40,355 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6472222222222223 [2024-11-17 07:58:40,355 INFO L175 Difference]: Start difference. First operand has 80 places, 65 transitions, 340 flow. Second operand 6 states and 233 transitions. [2024-11-17 07:58:40,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 118 transitions, 776 flow [2024-11-17 07:58:40,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 118 transitions, 736 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:58:40,362 INFO L231 Difference]: Finished difference. Result has 81 places, 64 transitions, 336 flow [2024-11-17 07:58:40,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=336, PETRI_PLACES=81, PETRI_TRANSITIONS=64} [2024-11-17 07:58:40,363 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 26 predicate places. [2024-11-17 07:58:40,363 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 64 transitions, 336 flow [2024-11-17 07:58:40,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 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) [2024-11-17 07:58:40,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:40,363 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:58:40,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:58:40,564 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,SelfDestructingSolverStorable10 [2024-11-17 07:58:40,565 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:40,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:40,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1892620124, now seen corresponding path program 1 times [2024-11-17 07:58:40,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:40,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339304418] [2024-11-17 07:58:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:40,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:40,857 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:58:40,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:40,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339304418] [2024-11-17 07:58:40,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339304418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:40,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:40,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:58:40,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751010778] [2024-11-17 07:58:40,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:40,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:58:40,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:40,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:58:40,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:58:40,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 60 [2024-11-17 07:58:40,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 64 transitions, 336 flow. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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) [2024-11-17 07:58:40,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:40,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 60 [2024-11-17 07:58:40,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:41,274 INFO L124 PetriNetUnfolderBase]: 1005/2523 cut-off events. [2024-11-17 07:58:41,274 INFO L125 PetriNetUnfolderBase]: For 3424/3439 co-relation queries the response was YES. [2024-11-17 07:58:41,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6508 conditions, 2523 events. 1005/2523 cut-off events. For 3424/3439 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 15322 event pairs, 329 based on Foata normal form. 0/2471 useless extension candidates. Maximal degree in co-relation 6490. Up to 826 conditions per place. [2024-11-17 07:58:41,295 INFO L140 encePairwiseOnDemand]: 55/60 looper letters, 67 selfloop transitions, 6 changer transitions 0/100 dead transitions. [2024-11-17 07:58:41,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 100 transitions, 672 flow [2024-11-17 07:58:41,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:58:41,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:58:41,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 155 transitions. [2024-11-17 07:58:41,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2024-11-17 07:58:41,296 INFO L175 Difference]: Start difference. First operand has 81 places, 64 transitions, 336 flow. Second operand 4 states and 155 transitions. [2024-11-17 07:58:41,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 100 transitions, 672 flow [2024-11-17 07:58:41,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 100 transitions, 657 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:58:41,304 INFO L231 Difference]: Finished difference. Result has 81 places, 64 transitions, 347 flow [2024-11-17 07:58:41,304 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=347, PETRI_PLACES=81, PETRI_TRANSITIONS=64} [2024-11-17 07:58:41,305 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 26 predicate places. [2024-11-17 07:58:41,305 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 64 transitions, 347 flow [2024-11-17 07:58:41,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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) [2024-11-17 07:58:41,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:41,305 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:58:41,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 07:58:41,306 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:41,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:41,306 INFO L85 PathProgramCache]: Analyzing trace with hash 652905382, now seen corresponding path program 1 times [2024-11-17 07:58:41,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:41,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256100614] [2024-11-17 07:58:41,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:41,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:41,585 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:58:41,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:41,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256100614] [2024-11-17 07:58:41,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256100614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:41,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:41,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:58:41,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57808992] [2024-11-17 07:58:41,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:41,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:58:41,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:41,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:58:41,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:58:41,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 60 [2024-11-17 07:58:41,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 64 transitions, 347 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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) [2024-11-17 07:58:41,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:41,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 60 [2024-11-17 07:58:41,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:41,931 INFO L124 PetriNetUnfolderBase]: 956/2360 cut-off events. [2024-11-17 07:58:41,931 INFO L125 PetriNetUnfolderBase]: For 3915/3918 co-relation queries the response was YES. [2024-11-17 07:58:41,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6287 conditions, 2360 events. 956/2360 cut-off events. For 3915/3918 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 14002 event pairs, 232 based on Foata normal form. 55/2394 useless extension candidates. Maximal degree in co-relation 6269. Up to 879 conditions per place. [2024-11-17 07:58:41,950 INFO L140 encePairwiseOnDemand]: 55/60 looper letters, 56 selfloop transitions, 6 changer transitions 1/90 dead transitions. [2024-11-17 07:58:41,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 90 transitions, 605 flow [2024-11-17 07:58:41,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:58:41,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:58:41,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions. [2024-11-17 07:58:41,951 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-17 07:58:41,951 INFO L175 Difference]: Start difference. First operand has 81 places, 64 transitions, 347 flow. Second operand 4 states and 150 transitions. [2024-11-17 07:58:41,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 90 transitions, 605 flow [2024-11-17 07:58:41,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 90 transitions, 580 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-17 07:58:41,959 INFO L231 Difference]: Finished difference. Result has 81 places, 63 transitions, 349 flow [2024-11-17 07:58:41,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=349, PETRI_PLACES=81, PETRI_TRANSITIONS=63} [2024-11-17 07:58:41,960 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 26 predicate places. [2024-11-17 07:58:41,960 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 63 transitions, 349 flow [2024-11-17 07:58:41,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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) [2024-11-17 07:58:41,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:58:41,961 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:58:41,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 07:58:41,962 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-17 07:58:41,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:58:41,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1300190707, now seen corresponding path program 1 times [2024-11-17 07:58:41,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:58:41,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122872965] [2024-11-17 07:58:41,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:58:41,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:58:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:58:42,228 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-17 07:58:42,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:58:42,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122872965] [2024-11-17 07:58:42,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122872965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:58:42,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:58:42,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:58:42,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300700979] [2024-11-17 07:58:42,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:58:42,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:58:42,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:58:42,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:58:42,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:58:42,256 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 60 [2024-11-17 07:58:42,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 63 transitions, 349 flow. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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) [2024-11-17 07:58:42,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:58:42,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 60 [2024-11-17 07:58:42,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:58:42,560 INFO L124 PetriNetUnfolderBase]: 746/1898 cut-off events. [2024-11-17 07:58:42,560 INFO L125 PetriNetUnfolderBase]: For 3970/3974 co-relation queries the response was YES. [2024-11-17 07:58:42,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5367 conditions, 1898 events. 746/1898 cut-off events. For 3970/3974 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 10511 event pairs, 190 based on Foata normal form. 42/1925 useless extension candidates. Maximal degree in co-relation 5349. Up to 695 conditions per place. [2024-11-17 07:58:42,567 INFO L140 encePairwiseOnDemand]: 53/60 looper letters, 0 selfloop transitions, 0 changer transitions 104/104 dead transitions. [2024-11-17 07:58:42,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 104 transitions, 713 flow [2024-11-17 07:58:42,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:58:42,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:58:42,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 210 transitions. [2024-11-17 07:58:42,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-17 07:58:42,568 INFO L175 Difference]: Start difference. First operand has 81 places, 63 transitions, 349 flow. Second operand 7 states and 210 transitions. [2024-11-17 07:58:42,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 104 transitions, 713 flow [2024-11-17 07:58:42,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 104 transitions, 691 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:58:42,574 INFO L231 Difference]: Finished difference. Result has 83 places, 0 transitions, 0 flow [2024-11-17 07:58:42,574 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=83, PETRI_TRANSITIONS=0} [2024-11-17 07:58:42,575 INFO L277 CegarLoopForPetriNet]: 55 programPoint places, 28 predicate places. [2024-11-17 07:58:42,575 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 0 transitions, 0 flow [2024-11-17 07:58:42,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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) [2024-11-17 07:58:42,577 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-17 07:58:42,578 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-17 07:58:42,578 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-17 07:58:42,578 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-17 07:58:42,578 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-17 07:58:42,578 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-17 07:58:42,578 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-17 07:58:42,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-17 07:58:42,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2024-11-17 07:58:42,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-11-17 07:58:42,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-17 07:58:42,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-17 07:58:42,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-17 07:58:42,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-17 07:58:42,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-17 07:58:42,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-17 07:58:42,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-17 07:58:42,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-17 07:58:42,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-17 07:58:42,580 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:58:42,585 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:58:42,585 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:58:42,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:58:42 BasicIcfg [2024-11-17 07:58:42,593 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:58:42,593 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:58:42,594 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:58:42,594 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:58:42,594 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:58:29" (3/4) ... [2024-11-17 07:58:42,596 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:58:42,599 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-17 07:58:42,599 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-17 07:58:42,612 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 147 nodes and edges [2024-11-17 07:58:42,613 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 71 nodes and edges [2024-11-17 07:58:42,613 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-11-17 07:58:42,614 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-17 07:58:42,615 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-17 07:58:42,615 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-17 07:58:42,615 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-17 07:58:42,724 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:58:42,725 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:58:42,725 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:58:42,725 INFO L158 Benchmark]: Toolchain (without parser) took 15302.88ms. Allocated memory was 176.2MB in the beginning and 658.5MB in the end (delta: 482.3MB). Free memory was 120.8MB in the beginning and 540.0MB in the end (delta: -419.1MB). Peak memory consumption was 64.6MB. Max. memory is 16.1GB. [2024-11-17 07:58:42,726 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 176.2MB. Free memory is still 143.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:58:42,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 699.63ms. Allocated memory is still 176.2MB. Free memory was 120.8MB in the beginning and 89.9MB in the end (delta: 31.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-17 07:58:42,726 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.64ms. Allocated memory is still 176.2MB. Free memory was 89.9MB in the beginning and 86.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:58:42,726 INFO L158 Benchmark]: Boogie Preprocessor took 79.53ms. Allocated memory is still 176.2MB. Free memory was 86.9MB in the beginning and 83.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:58:42,726 INFO L158 Benchmark]: IcfgBuilder took 1512.32ms. Allocated memory was 176.2MB in the beginning and 234.9MB in the end (delta: 58.7MB). Free memory was 83.1MB in the beginning and 89.8MB in the end (delta: -6.7MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2024-11-17 07:58:42,727 INFO L158 Benchmark]: TraceAbstraction took 12803.26ms. Allocated memory was 234.9MB in the beginning and 658.5MB in the end (delta: 423.6MB). Free memory was 88.7MB in the beginning and 547.4MB in the end (delta: -458.6MB). Peak memory consumption was 310.1MB. Max. memory is 16.1GB. [2024-11-17 07:58:42,727 INFO L158 Benchmark]: Witness Printer took 131.44ms. Allocated memory is still 658.5MB. Free memory was 547.4MB in the beginning and 540.0MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-17 07:58:42,729 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 176.2MB. Free memory is still 143.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 699.63ms. Allocated memory is still 176.2MB. Free memory was 120.8MB in the beginning and 89.9MB in the end (delta: 31.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.64ms. Allocated memory is still 176.2MB. Free memory was 89.9MB in the beginning and 86.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.53ms. Allocated memory is still 176.2MB. Free memory was 86.9MB in the beginning and 83.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 1512.32ms. Allocated memory was 176.2MB in the beginning and 234.9MB in the end (delta: 58.7MB). Free memory was 83.1MB in the beginning and 89.8MB in the end (delta: -6.7MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12803.26ms. Allocated memory was 234.9MB in the beginning and 658.5MB in the end (delta: 423.6MB). Free memory was 88.7MB in the beginning and 547.4MB in the end (delta: -458.6MB). Peak memory consumption was 310.1MB. Max. memory is 16.1GB. * Witness Printer took 131.44ms. Allocated memory is still 658.5MB. Free memory was 547.4MB in the beginning and 540.0MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 882]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 882]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 885]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 885]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 897]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 897]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 900]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 900]: 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, 99 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: 12.6s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 663 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 573 mSDsluCounter, 141 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1724 IncrementalHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 44 mSDtfsCounter, 1724 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred in iteration=9, InterpolantAutomatonStates: 63, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 469 ConstructedInterpolants, 0 QuantifiedInterpolants, 1071 SizeOfPredicates, 3 NumberOfNonLiveVariables, 832 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 78/102 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! [2024-11-17 07:58:42,756 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