./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread/queue_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/queue_longer.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 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 14:52:43,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 14:52:43,729 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 14:52:43,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 14:52:43,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 14:52:43,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 14:52:43,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 14:52:43,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 14:52:43,778 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 14:52:43,778 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 14:52:43,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 14:52:43,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 14:52:43,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 14:52:43,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 14:52:43,782 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 14:52:43,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 14:52:43,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 14:52:43,783 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 14:52:43,783 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 14:52:43,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 14:52:43,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 14:52:43,787 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 14:52:43,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 14:52:43,787 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 14:52:43,787 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 14:52:43,787 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 14:52:43,788 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 14:52:43,788 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 14:52:43,788 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 14:52:43,788 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 14:52:43,789 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 14:52:43,789 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 14:52:43,789 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 14:52:43,789 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 14:52:43,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 14:52:43,790 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 14:52:43,790 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 14:52:43,790 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 14:52:43,792 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 14:52:43,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 14:52:43,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 14:52:43,792 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 14:52:43,793 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 14:52:43,793 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 14:52:43,793 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 [2024-11-09 14:52:44,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 14:52:44,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 14:52:44,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 14:52:44,065 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 14:52:44,067 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 14:52:44,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/queue_longer.i [2024-11-09 14:52:45,484 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 14:52:45,782 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 14:52:45,783 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longer.i [2024-11-09 14:52:45,806 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce1182f55/5682d416263c45e986c76e3b3b542363/FLAG314307e23 [2024-11-09 14:52:45,822 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce1182f55/5682d416263c45e986c76e3b3b542363 [2024-11-09 14:52:45,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 14:52:45,826 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 14:52:45,829 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 14:52:45,829 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 14:52:45,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 14:52:45,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:52:45" (1/1) ... [2024-11-09 14:52:45,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d55452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:45, skipping insertion in model container [2024-11-09 14:52:45,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:52:45" (1/1) ... [2024-11-09 14:52:45,891 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 14:52:46,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 14:52:46,438 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 14:52:46,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 14:52:46,600 INFO L204 MainTranslator]: Completed translation [2024-11-09 14:52:46,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46 WrapperNode [2024-11-09 14:52:46,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 14:52:46,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 14:52:46,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 14:52:46,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 14:52:46,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46" (1/1) ... [2024-11-09 14:52:46,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46" (1/1) ... [2024-11-09 14:52:46,734 INFO L138 Inliner]: procedures = 274, calls = 859, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 1064 [2024-11-09 14:52:46,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 14:52:46,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 14:52:46,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 14:52:46,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 14:52:46,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46" (1/1) ... [2024-11-09 14:52:46,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46" (1/1) ... [2024-11-09 14:52:46,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46" (1/1) ... [2024-11-09 14:52:46,793 INFO L175 MemorySlicer]: Split 844 memory accesses to 4 slices as follows [2, 5, 403, 434]. 51 percent of accesses are in the largest equivalence class. The 810 initializations are split as follows [2, 5, 400, 403]. The 16 writes are split as follows [0, 0, 2, 14]. [2024-11-09 14:52:46,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46" (1/1) ... [2024-11-09 14:52:46,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46" (1/1) ... [2024-11-09 14:52:46,843 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46" (1/1) ... [2024-11-09 14:52:46,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46" (1/1) ... [2024-11-09 14:52:46,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46" (1/1) ... [2024-11-09 14:52:46,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46" (1/1) ... [2024-11-09 14:52:46,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 14:52:46,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 14:52:46,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 14:52:46,879 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 14:52:46,880 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46" (1/1) ... [2024-11-09 14:52:46,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 14:52:46,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 14:52:46,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 14:52:46,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 14:52:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-09 14:52:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-09 14:52:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-09 14:52:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-09 14:52:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 14:52:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 14:52:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 14:52:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 14:52:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 14:52:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 14:52:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 14:52:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 14:52:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 14:52:46,974 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 14:52:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 14:52:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 14:52:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 14:52:46,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 14:52:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 14:52:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 14:52:46,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 14:52:46,978 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 14:52:47,234 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 14:52:47,236 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 14:52:48,467 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 14:52:48,469 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 14:52:55,112 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 14:52:55,114 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 14:52:55,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:52:55 BoogieIcfgContainer [2024-11-09 14:52:55,114 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 14:52:55,117 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 14:52:55,117 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 14:52:55,120 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 14:52:55,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:52:45" (1/3) ... [2024-11-09 14:52:55,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0c3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:52:55, skipping insertion in model container [2024-11-09 14:52:55,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:52:46" (2/3) ... [2024-11-09 14:52:55,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0c3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:52:55, skipping insertion in model container [2024-11-09 14:52:55,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:52:55" (3/3) ... [2024-11-09 14:52:55,124 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2024-11-09 14:52:55,141 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 14:52:55,141 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-09 14:52:55,142 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 14:52:55,248 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 14:52:55,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 83 transitions, 180 flow [2024-11-09 14:52:55,389 INFO L124 PetriNetUnfolderBase]: 9/81 cut-off events. [2024-11-09 14:52:55,390 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 14:52:55,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 81 events. 9/81 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 208 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2024-11-09 14:52:55,396 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 83 transitions, 180 flow [2024-11-09 14:52:55,400 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 79 transitions, 167 flow [2024-11-09 14:52:55,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 14:52:55,420 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;@35d30673, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 14:52:55,420 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-09 14:52:55,474 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 14:52:55,474 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-09 14:52:55,474 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 14:52:55,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:52:55,475 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 14:52:55,476 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:52:55,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:52:55,482 INFO L85 PathProgramCache]: Analyzing trace with hash -445045891, now seen corresponding path program 1 times [2024-11-09 14:52:55,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:52:55,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529857361] [2024-11-09 14:52:55,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:52:55,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:52:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:52:57,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:52:57,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:52:57,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529857361] [2024-11-09 14:52:57,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529857361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:52:57,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:52:57,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 14:52:57,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587257574] [2024-11-09 14:52:57,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:52:57,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 14:52:57,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:52:57,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 14:52:57,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 14:52:57,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 83 [2024-11-09 14:52:57,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 79 transitions, 167 flow. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:52:57,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:52:57,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 83 [2024-11-09 14:52:57,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:52:57,955 INFO L124 PetriNetUnfolderBase]: 1233/2525 cut-off events. [2024-11-09 14:52:57,955 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-09 14:52:57,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4503 conditions, 2525 events. 1233/2525 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 15719 event pairs, 205 based on Foata normal form. 48/2196 useless extension candidates. Maximal degree in co-relation 4434. Up to 1608 conditions per place. [2024-11-09 14:52:57,988 INFO L140 encePairwiseOnDemand]: 75/83 looper letters, 73 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2024-11-09 14:52:57,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 109 transitions, 391 flow [2024-11-09 14:52:57,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 14:52:57,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 14:52:57,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 209 transitions. [2024-11-09 14:52:58,002 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6295180722891566 [2024-11-09 14:52:58,004 INFO L175 Difference]: Start difference. First operand has 77 places, 79 transitions, 167 flow. Second operand 4 states and 209 transitions. [2024-11-09 14:52:58,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 109 transitions, 391 flow [2024-11-09 14:52:58,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 109 transitions, 384 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 14:52:58,012 INFO L231 Difference]: Finished difference. Result has 80 places, 82 transitions, 202 flow [2024-11-09 14:52:58,015 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=80, PETRI_TRANSITIONS=82} [2024-11-09 14:52:58,021 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2024-11-09 14:52:58,021 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 82 transitions, 202 flow [2024-11-09 14:52:58,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:52:58,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:52:58,022 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:52:58,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 14:52:58,023 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:52:58,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:52:58,024 INFO L85 PathProgramCache]: Analyzing trace with hash -911518375, now seen corresponding path program 1 times [2024-11-09 14:52:58,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:52:58,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507280715] [2024-11-09 14:52:58,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:52:58,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:52:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:52:58,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:52:58,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:52:58,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507280715] [2024-11-09 14:52:58,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507280715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:52:58,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:52:58,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 14:52:58,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325664715] [2024-11-09 14:52:58,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:52:58,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 14:52:58,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:52:58,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 14:52:58,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 14:52:59,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 83 [2024-11-09 14:52:59,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 82 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:52:59,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:52:59,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 83 [2024-11-09 14:52:59,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:52:59,522 INFO L124 PetriNetUnfolderBase]: 1242/2581 cut-off events. [2024-11-09 14:52:59,522 INFO L125 PetriNetUnfolderBase]: For 452/455 co-relation queries the response was YES. [2024-11-09 14:52:59,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4890 conditions, 2581 events. 1242/2581 cut-off events. For 452/455 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 16541 event pairs, 264 based on Foata normal form. 38/2287 useless extension candidates. Maximal degree in co-relation 4354. Up to 1757 conditions per place. [2024-11-09 14:52:59,542 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 81 selfloop transitions, 6 changer transitions 0/117 dead transitions. [2024-11-09 14:52:59,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 117 transitions, 456 flow [2024-11-09 14:52:59,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 14:52:59,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 14:52:59,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 249 transitions. [2024-11-09 14:52:59,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-09 14:52:59,550 INFO L175 Difference]: Start difference. First operand has 80 places, 82 transitions, 202 flow. Second operand 5 states and 249 transitions. [2024-11-09 14:52:59,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 117 transitions, 456 flow [2024-11-09 14:52:59,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 117 transitions, 450 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 14:52:59,557 INFO L231 Difference]: Finished difference. Result has 84 places, 83 transitions, 219 flow [2024-11-09 14:52:59,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=84, PETRI_TRANSITIONS=83} [2024-11-09 14:52:59,558 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 7 predicate places. [2024-11-09 14:52:59,558 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 83 transitions, 219 flow [2024-11-09 14:52:59,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:52:59,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:52:59,559 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:52:59,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 14:52:59,559 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:52:59,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:52:59,561 INFO L85 PathProgramCache]: Analyzing trace with hash 204245500, now seen corresponding path program 1 times [2024-11-09 14:52:59,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:52:59,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086572202] [2024-11-09 14:52:59,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:52:59,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:52:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:00,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:00,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:00,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086572202] [2024-11-09 14:53:00,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086572202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:00,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:00,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 14:53:00,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061352821] [2024-11-09 14:53:00,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:00,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 14:53:00,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:00,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 14:53:00,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 14:53:00,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 83 [2024-11-09 14:53:00,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 83 transitions, 219 flow. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:00,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:00,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 83 [2024-11-09 14:53:00,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:01,188 INFO L124 PetriNetUnfolderBase]: 1322/2691 cut-off events. [2024-11-09 14:53:01,189 INFO L125 PetriNetUnfolderBase]: For 528/544 co-relation queries the response was YES. [2024-11-09 14:53:01,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5199 conditions, 2691 events. 1322/2691 cut-off events. For 528/544 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 17156 event pairs, 266 based on Foata normal form. 40/2367 useless extension candidates. Maximal degree in co-relation 4657. Up to 1803 conditions per place. [2024-11-09 14:53:01,212 INFO L140 encePairwiseOnDemand]: 74/83 looper letters, 102 selfloop transitions, 11 changer transitions 0/143 dead transitions. [2024-11-09 14:53:01,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 143 transitions, 585 flow [2024-11-09 14:53:01,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 14:53:01,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 14:53:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 340 transitions. [2024-11-09 14:53:01,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5851979345955249 [2024-11-09 14:53:01,215 INFO L175 Difference]: Start difference. First operand has 84 places, 83 transitions, 219 flow. Second operand 7 states and 340 transitions. [2024-11-09 14:53:01,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 143 transitions, 585 flow [2024-11-09 14:53:01,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 143 transitions, 571 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-09 14:53:01,223 INFO L231 Difference]: Finished difference. Result has 90 places, 89 transitions, 274 flow [2024-11-09 14:53:01,223 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=274, PETRI_PLACES=90, PETRI_TRANSITIONS=89} [2024-11-09 14:53:01,224 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 13 predicate places. [2024-11-09 14:53:01,224 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 89 transitions, 274 flow [2024-11-09 14:53:01,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:01,225 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:01,225 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:01,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 14:53:01,226 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:01,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:01,227 INFO L85 PathProgramCache]: Analyzing trace with hash 2083930802, now seen corresponding path program 1 times [2024-11-09 14:53:01,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:01,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946165379] [2024-11-09 14:53:01,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:01,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:01,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:01,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:01,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946165379] [2024-11-09 14:53:01,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946165379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:01,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:01,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 14:53:01,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233910500] [2024-11-09 14:53:01,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:01,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 14:53:01,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:01,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 14:53:01,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 14:53:01,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 83 [2024-11-09 14:53:01,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 89 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:01,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:01,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 83 [2024-11-09 14:53:01,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:02,026 INFO L124 PetriNetUnfolderBase]: 1023/2371 cut-off events. [2024-11-09 14:53:02,027 INFO L125 PetriNetUnfolderBase]: For 522/522 co-relation queries the response was YES. [2024-11-09 14:53:02,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4342 conditions, 2371 events. 1023/2371 cut-off events. For 522/522 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 13928 event pairs, 483 based on Foata normal form. 41/2110 useless extension candidates. Maximal degree in co-relation 4332. Up to 884 conditions per place. [2024-11-09 14:53:02,045 INFO L140 encePairwiseOnDemand]: 79/83 looper letters, 63 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2024-11-09 14:53:02,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 96 transitions, 370 flow [2024-11-09 14:53:02,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 14:53:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 14:53:02,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2024-11-09 14:53:02,049 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7028112449799196 [2024-11-09 14:53:02,049 INFO L175 Difference]: Start difference. First operand has 90 places, 89 transitions, 274 flow. Second operand 3 states and 175 transitions. [2024-11-09 14:53:02,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 96 transitions, 370 flow [2024-11-09 14:53:02,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 96 transitions, 331 flow, removed 4 selfloop flow, removed 13 redundant places. [2024-11-09 14:53:02,054 INFO L231 Difference]: Finished difference. Result has 74 places, 75 transitions, 167 flow [2024-11-09 14:53:02,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=74, PETRI_TRANSITIONS=75} [2024-11-09 14:53:02,055 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, -3 predicate places. [2024-11-09 14:53:02,056 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 75 transitions, 167 flow [2024-11-09 14:53:02,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:02,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:02,056 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:02,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 14:53:02,057 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:02,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:02,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1202786229, now seen corresponding path program 1 times [2024-11-09 14:53:02,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:02,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713551602] [2024-11-09 14:53:02,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:02,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:02,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:02,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:02,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713551602] [2024-11-09 14:53:02,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713551602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:02,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:02,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 14:53:02,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923568573] [2024-11-09 14:53:02,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:02,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 14:53:02,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:02,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 14:53:02,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 14:53:02,277 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 83 [2024-11-09 14:53:02,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 75 transitions, 167 flow. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:02,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:02,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 83 [2024-11-09 14:53:02,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:03,061 INFO L124 PetriNetUnfolderBase]: 1890/4150 cut-off events. [2024-11-09 14:53:03,061 INFO L125 PetriNetUnfolderBase]: For 190/190 co-relation queries the response was YES. [2024-11-09 14:53:03,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7403 conditions, 4150 events. 1890/4150 cut-off events. For 190/190 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 27021 event pairs, 949 based on Foata normal form. 138/3770 useless extension candidates. Maximal degree in co-relation 7398. Up to 1977 conditions per place. [2024-11-09 14:53:03,091 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 112 selfloop transitions, 3 changer transitions 0/143 dead transitions. [2024-11-09 14:53:03,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 143 transitions, 550 flow [2024-11-09 14:53:03,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 14:53:03,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 14:53:03,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-11-09 14:53:03,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7560240963855421 [2024-11-09 14:53:03,094 INFO L175 Difference]: Start difference. First operand has 74 places, 75 transitions, 167 flow. Second operand 4 states and 251 transitions. [2024-11-09 14:53:03,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 143 transitions, 550 flow [2024-11-09 14:53:03,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 143 transitions, 544 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 14:53:03,098 INFO L231 Difference]: Finished difference. Result has 78 places, 77 transitions, 188 flow [2024-11-09 14:53:03,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=188, PETRI_PLACES=78, PETRI_TRANSITIONS=77} [2024-11-09 14:53:03,099 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 1 predicate places. [2024-11-09 14:53:03,100 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 77 transitions, 188 flow [2024-11-09 14:53:03,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:03,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:03,100 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:03,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 14:53:03,101 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:03,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:03,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1230628010, now seen corresponding path program 1 times [2024-11-09 14:53:03,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:03,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759763087] [2024-11-09 14:53:03,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:03,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:03,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:03,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:03,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759763087] [2024-11-09 14:53:03,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759763087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:03,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:03,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 14:53:03,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806058242] [2024-11-09 14:53:03,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:03,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 14:53:03,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:03,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 14:53:03,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 14:53:03,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 83 [2024-11-09 14:53:03,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 77 transitions, 188 flow. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:03,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:03,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 83 [2024-11-09 14:53:03,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:04,609 INFO L124 PetriNetUnfolderBase]: 1823/4036 cut-off events. [2024-11-09 14:53:04,609 INFO L125 PetriNetUnfolderBase]: For 834/962 co-relation queries the response was YES. [2024-11-09 14:53:04,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7759 conditions, 4036 events. 1823/4036 cut-off events. For 834/962 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 26264 event pairs, 263 based on Foata normal form. 0/3590 useless extension candidates. Maximal degree in co-relation 7752. Up to 2417 conditions per place. [2024-11-09 14:53:04,645 INFO L140 encePairwiseOnDemand]: 73/83 looper letters, 88 selfloop transitions, 9 changer transitions 0/127 dead transitions. [2024-11-09 14:53:04,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 127 transitions, 558 flow [2024-11-09 14:53:04,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 14:53:04,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 14:53:04,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 303 transitions. [2024-11-09 14:53:04,647 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.608433734939759 [2024-11-09 14:53:04,648 INFO L175 Difference]: Start difference. First operand has 78 places, 77 transitions, 188 flow. Second operand 6 states and 303 transitions. [2024-11-09 14:53:04,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 127 transitions, 558 flow [2024-11-09 14:53:04,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 127 transitions, 548 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 14:53:04,653 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 220 flow [2024-11-09 14:53:04,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=220, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2024-11-09 14:53:04,654 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 6 predicate places. [2024-11-09 14:53:04,655 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 220 flow [2024-11-09 14:53:04,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:04,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:04,656 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:04,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 14:53:04,657 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:04,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:04,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1503049579, now seen corresponding path program 1 times [2024-11-09 14:53:04,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:04,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958930875] [2024-11-09 14:53:04,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:04,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:04,986 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:04,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:04,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958930875] [2024-11-09 14:53:04,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958930875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 14:53:04,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728755608] [2024-11-09 14:53:04,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:04,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 14:53:04,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 14:53:04,993 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) [2024-11-09 14:53:04,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 14:53:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:05,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 1762 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 14:53:05,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 14:53:05,410 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:05,410 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 14:53:05,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728755608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:05,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 14:53:05,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 14:53:05,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5269084] [2024-11-09 14:53:05,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:05,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 14:53:05,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:05,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 14:53:05,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 14:53:05,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 83 [2024-11-09 14:53:05,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 36.166666666666664) internal successors, (217), 6 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:05,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:05,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 83 [2024-11-09 14:53:05,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:06,457 INFO L124 PetriNetUnfolderBase]: 1787/3886 cut-off events. [2024-11-09 14:53:06,457 INFO L125 PetriNetUnfolderBase]: For 933/933 co-relation queries the response was YES. [2024-11-09 14:53:06,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8069 conditions, 3886 events. 1787/3886 cut-off events. For 933/933 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 25130 event pairs, 110 based on Foata normal form. 74/3656 useless extension candidates. Maximal degree in co-relation 8061. Up to 1148 conditions per place. [2024-11-09 14:53:06,483 INFO L140 encePairwiseOnDemand]: 79/83 looper letters, 171 selfloop transitions, 5 changer transitions 0/204 dead transitions. [2024-11-09 14:53:06,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 204 transitions, 926 flow [2024-11-09 14:53:06,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 14:53:06,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 14:53:06,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 367 transitions. [2024-11-09 14:53:06,486 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7369477911646586 [2024-11-09 14:53:06,486 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 220 flow. Second operand 6 states and 367 transitions. [2024-11-09 14:53:06,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 204 transitions, 926 flow [2024-11-09 14:53:06,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 204 transitions, 880 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 14:53:06,492 INFO L231 Difference]: Finished difference. Result has 83 places, 78 transitions, 214 flow [2024-11-09 14:53:06,492 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=214, PETRI_PLACES=83, PETRI_TRANSITIONS=78} [2024-11-09 14:53:06,493 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 6 predicate places. [2024-11-09 14:53:06,493 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 78 transitions, 214 flow [2024-11-09 14:53:06,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.166666666666664) internal successors, (217), 6 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:06,494 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:06,494 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] [2024-11-09 14:53:06,515 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 14:53:06,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 14:53:06,695 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:06,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:06,695 INFO L85 PathProgramCache]: Analyzing trace with hash 6552044, now seen corresponding path program 1 times [2024-11-09 14:53:06,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:06,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685404611] [2024-11-09 14:53:06,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:06,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:09,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:09,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:09,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685404611] [2024-11-09 14:53:09,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685404611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:09,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:09,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 14:53:09,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876280128] [2024-11-09 14:53:09,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:09,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 14:53:09,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:09,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 14:53:09,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 14:53:09,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 83 [2024-11-09 14:53:09,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 78 transitions, 214 flow. Second operand has 8 states, 8 states have (on average 30.0) internal successors, (240), 8 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:09,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:09,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 83 [2024-11-09 14:53:09,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:10,296 INFO L124 PetriNetUnfolderBase]: 2417/4975 cut-off events. [2024-11-09 14:53:10,296 INFO L125 PetriNetUnfolderBase]: For 2172/2252 co-relation queries the response was YES. [2024-11-09 14:53:10,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10742 conditions, 4975 events. 2417/4975 cut-off events. For 2172/2252 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 32484 event pairs, 444 based on Foata normal form. 22/4514 useless extension candidates. Maximal degree in co-relation 10734. Up to 2624 conditions per place. [2024-11-09 14:53:10,330 INFO L140 encePairwiseOnDemand]: 74/83 looper letters, 137 selfloop transitions, 8 changer transitions 0/170 dead transitions. [2024-11-09 14:53:10,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 170 transitions, 879 flow [2024-11-09 14:53:10,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 14:53:10,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 14:53:10,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 378 transitions. [2024-11-09 14:53:10,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5060240963855421 [2024-11-09 14:53:10,332 INFO L175 Difference]: Start difference. First operand has 83 places, 78 transitions, 214 flow. Second operand 9 states and 378 transitions. [2024-11-09 14:53:10,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 170 transitions, 879 flow [2024-11-09 14:53:10,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 170 transitions, 839 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 14:53:10,339 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 246 flow [2024-11-09 14:53:10,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=246, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2024-11-09 14:53:10,342 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 14 predicate places. [2024-11-09 14:53:10,342 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 246 flow [2024-11-09 14:53:10,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 30.0) internal successors, (240), 8 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:10,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:10,343 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:10,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 14:53:10,343 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:10,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:10,344 INFO L85 PathProgramCache]: Analyzing trace with hash -650100888, now seen corresponding path program 1 times [2024-11-09 14:53:10,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:10,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265294290] [2024-11-09 14:53:10,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:10,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:10,475 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 14:53:10,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:10,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265294290] [2024-11-09 14:53:10,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265294290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:10,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:10,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 14:53:10,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091789805] [2024-11-09 14:53:10,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:10,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 14:53:10,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:10,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 14:53:10,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 14:53:10,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 83 [2024-11-09 14:53:10,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 246 flow. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:10,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:10,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 83 [2024-11-09 14:53:10,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:11,224 INFO L124 PetriNetUnfolderBase]: 2102/4437 cut-off events. [2024-11-09 14:53:11,224 INFO L125 PetriNetUnfolderBase]: For 1708/1762 co-relation queries the response was YES. [2024-11-09 14:53:11,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9637 conditions, 4437 events. 2102/4437 cut-off events. For 1708/1762 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 29064 event pairs, 394 based on Foata normal form. 87/4268 useless extension candidates. Maximal degree in co-relation 9627. Up to 2113 conditions per place. [2024-11-09 14:53:11,260 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 103 selfloop transitions, 6 changer transitions 6/143 dead transitions. [2024-11-09 14:53:11,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 143 transitions, 670 flow [2024-11-09 14:53:11,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 14:53:11,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 14:53:11,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 232 transitions. [2024-11-09 14:53:11,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6987951807228916 [2024-11-09 14:53:11,262 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 246 flow. Second operand 4 states and 232 transitions. [2024-11-09 14:53:11,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 143 transitions, 670 flow [2024-11-09 14:53:11,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 143 transitions, 644 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-09 14:53:11,271 INFO L231 Difference]: Finished difference. Result has 89 places, 79 transitions, 246 flow [2024-11-09 14:53:11,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=246, PETRI_PLACES=89, PETRI_TRANSITIONS=79} [2024-11-09 14:53:11,273 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 12 predicate places. [2024-11-09 14:53:11,273 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 79 transitions, 246 flow [2024-11-09 14:53:11,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:11,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:11,275 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:11,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 14:53:11,275 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:11,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:11,276 INFO L85 PathProgramCache]: Analyzing trace with hash 203115749, now seen corresponding path program 1 times [2024-11-09 14:53:11,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:11,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518880623] [2024-11-09 14:53:11,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:11,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:13,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:13,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518880623] [2024-11-09 14:53:13,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518880623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:13,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:13,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 14:53:13,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55355149] [2024-11-09 14:53:13,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:13,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 14:53:13,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:13,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 14:53:13,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-09 14:53:13,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 83 [2024-11-09 14:53:13,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 79 transitions, 246 flow. Second operand has 8 states, 8 states have (on average 30.0) internal successors, (240), 8 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:13,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:13,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 83 [2024-11-09 14:53:13,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:14,765 INFO L124 PetriNetUnfolderBase]: 2331/4834 cut-off events. [2024-11-09 14:53:14,766 INFO L125 PetriNetUnfolderBase]: For 3111/3111 co-relation queries the response was YES. [2024-11-09 14:53:14,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11041 conditions, 4834 events. 2331/4834 cut-off events. For 3111/3111 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 31719 event pairs, 444 based on Foata normal form. 22/4495 useless extension candidates. Maximal degree in co-relation 11031. Up to 2624 conditions per place. [2024-11-09 14:53:14,797 INFO L140 encePairwiseOnDemand]: 74/83 looper letters, 132 selfloop transitions, 8 changer transitions 2/167 dead transitions. [2024-11-09 14:53:14,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 167 transitions, 923 flow [2024-11-09 14:53:14,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 14:53:14,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 14:53:14,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 375 transitions. [2024-11-09 14:53:14,800 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5020080321285141 [2024-11-09 14:53:14,800 INFO L175 Difference]: Start difference. First operand has 89 places, 79 transitions, 246 flow. Second operand 9 states and 375 transitions. [2024-11-09 14:53:14,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 167 transitions, 923 flow [2024-11-09 14:53:14,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 167 transitions, 863 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 14:53:14,807 INFO L231 Difference]: Finished difference. Result has 93 places, 78 transitions, 247 flow [2024-11-09 14:53:14,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=247, PETRI_PLACES=93, PETRI_TRANSITIONS=78} [2024-11-09 14:53:14,808 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 16 predicate places. [2024-11-09 14:53:14,808 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 78 transitions, 247 flow [2024-11-09 14:53:14,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 30.0) internal successors, (240), 8 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:14,809 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:14,809 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:14,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 14:53:14,809 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:14,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:14,810 INFO L85 PathProgramCache]: Analyzing trace with hash 2001591535, now seen corresponding path program 1 times [2024-11-09 14:53:14,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:14,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758329528] [2024-11-09 14:53:14,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:14,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:14,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:14,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:14,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758329528] [2024-11-09 14:53:14,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758329528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:14,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:14,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 14:53:14,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98598901] [2024-11-09 14:53:14,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:14,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 14:53:14,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:14,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 14:53:14,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 14:53:14,979 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 83 [2024-11-09 14:53:14,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 78 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:14,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:14,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 83 [2024-11-09 14:53:14,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:15,618 INFO L124 PetriNetUnfolderBase]: 2969/6042 cut-off events. [2024-11-09 14:53:15,618 INFO L125 PetriNetUnfolderBase]: For 2880/2890 co-relation queries the response was YES. [2024-11-09 14:53:15,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13701 conditions, 6042 events. 2969/6042 cut-off events. For 2880/2890 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 41689 event pairs, 1613 based on Foata normal form. 144/5877 useless extension candidates. Maximal degree in co-relation 13690. Up to 3799 conditions per place. [2024-11-09 14:53:15,652 INFO L140 encePairwiseOnDemand]: 75/83 looper letters, 96 selfloop transitions, 3 changer transitions 0/124 dead transitions. [2024-11-09 14:53:15,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 124 transitions, 618 flow [2024-11-09 14:53:15,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 14:53:15,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 14:53:15,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 219 transitions. [2024-11-09 14:53:15,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6596385542168675 [2024-11-09 14:53:15,655 INFO L175 Difference]: Start difference. First operand has 93 places, 78 transitions, 247 flow. Second operand 4 states and 219 transitions. [2024-11-09 14:53:15,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 124 transitions, 618 flow [2024-11-09 14:53:15,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 124 transitions, 603 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-09 14:53:15,661 INFO L231 Difference]: Finished difference. Result has 92 places, 80 transitions, 263 flow [2024-11-09 14:53:15,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=263, PETRI_PLACES=92, PETRI_TRANSITIONS=80} [2024-11-09 14:53:15,662 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 15 predicate places. [2024-11-09 14:53:15,662 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 80 transitions, 263 flow [2024-11-09 14:53:15,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:15,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:15,663 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:15,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 14:53:15,663 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:15,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:15,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1920782890, now seen corresponding path program 1 times [2024-11-09 14:53:15,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:15,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150929831] [2024-11-09 14:53:15,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:15,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:17,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:17,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:17,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150929831] [2024-11-09 14:53:17,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150929831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:17,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:17,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 14:53:17,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758609959] [2024-11-09 14:53:17,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:17,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 14:53:17,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:17,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 14:53:17,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 14:53:17,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 83 [2024-11-09 14:53:17,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 263 flow. Second operand has 8 states, 8 states have (on average 32.375) internal successors, (259), 8 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:17,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:17,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 83 [2024-11-09 14:53:17,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:18,121 INFO L124 PetriNetUnfolderBase]: 3108/6263 cut-off events. [2024-11-09 14:53:18,121 INFO L125 PetriNetUnfolderBase]: For 2965/3031 co-relation queries the response was YES. [2024-11-09 14:53:18,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14955 conditions, 6263 events. 3108/6263 cut-off events. For 2965/3031 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 42948 event pairs, 480 based on Foata normal form. 0/5922 useless extension candidates. Maximal degree in co-relation 14941. Up to 2490 conditions per place. [2024-11-09 14:53:18,158 INFO L140 encePairwiseOnDemand]: 68/83 looper letters, 149 selfloop transitions, 18 changer transitions 2/194 dead transitions. [2024-11-09 14:53:18,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 194 transitions, 1047 flow [2024-11-09 14:53:18,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 14:53:18,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 14:53:18,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 444 transitions. [2024-11-09 14:53:18,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5349397590361445 [2024-11-09 14:53:18,160 INFO L175 Difference]: Start difference. First operand has 92 places, 80 transitions, 263 flow. Second operand 10 states and 444 transitions. [2024-11-09 14:53:18,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 194 transitions, 1047 flow [2024-11-09 14:53:18,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 194 transitions, 1044 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 14:53:18,169 INFO L231 Difference]: Finished difference. Result has 103 places, 87 transitions, 355 flow [2024-11-09 14:53:18,169 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=355, PETRI_PLACES=103, PETRI_TRANSITIONS=87} [2024-11-09 14:53:18,170 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 26 predicate places. [2024-11-09 14:53:18,170 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 87 transitions, 355 flow [2024-11-09 14:53:18,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.375) internal successors, (259), 8 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:18,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:18,171 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] [2024-11-09 14:53:18,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 14:53:18,171 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:18,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:18,171 INFO L85 PathProgramCache]: Analyzing trace with hash -585270158, now seen corresponding path program 1 times [2024-11-09 14:53:18,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:18,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183005498] [2024-11-09 14:53:18,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:18,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:19,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:19,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:19,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183005498] [2024-11-09 14:53:19,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183005498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:19,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:19,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 14:53:19,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831027243] [2024-11-09 14:53:19,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:19,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 14:53:19,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:19,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 14:53:19,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 14:53:19,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 83 [2024-11-09 14:53:19,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 87 transitions, 355 flow. Second operand has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:19,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:19,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 83 [2024-11-09 14:53:19,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:20,293 INFO L124 PetriNetUnfolderBase]: 2853/5962 cut-off events. [2024-11-09 14:53:20,294 INFO L125 PetriNetUnfolderBase]: For 4126/4192 co-relation queries the response was YES. [2024-11-09 14:53:20,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15383 conditions, 5962 events. 2853/5962 cut-off events. For 4126/4192 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 41600 event pairs, 496 based on Foata normal form. 44/5833 useless extension candidates. Maximal degree in co-relation 15367. Up to 2726 conditions per place. [2024-11-09 14:53:20,338 INFO L140 encePairwiseOnDemand]: 68/83 looper letters, 149 selfloop transitions, 14 changer transitions 2/193 dead transitions. [2024-11-09 14:53:20,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 193 transitions, 1110 flow [2024-11-09 14:53:20,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 14:53:20,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 14:53:20,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 460 transitions. [2024-11-09 14:53:20,341 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5542168674698795 [2024-11-09 14:53:20,341 INFO L175 Difference]: Start difference. First operand has 103 places, 87 transitions, 355 flow. Second operand 10 states and 460 transitions. [2024-11-09 14:53:20,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 193 transitions, 1110 flow [2024-11-09 14:53:20,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 193 transitions, 1098 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 14:53:20,356 INFO L231 Difference]: Finished difference. Result has 108 places, 87 transitions, 375 flow [2024-11-09 14:53:20,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=375, PETRI_PLACES=108, PETRI_TRANSITIONS=87} [2024-11-09 14:53:20,357 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 31 predicate places. [2024-11-09 14:53:20,357 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 87 transitions, 375 flow [2024-11-09 14:53:20,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:20,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:20,358 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:20,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 14:53:20,358 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:20,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:20,359 INFO L85 PathProgramCache]: Analyzing trace with hash 979950757, now seen corresponding path program 1 times [2024-11-09 14:53:20,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:20,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787296314] [2024-11-09 14:53:20,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:20,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:20,598 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:20,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:20,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787296314] [2024-11-09 14:53:20,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787296314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 14:53:20,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417968350] [2024-11-09 14:53:20,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:20,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 14:53:20,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 14:53:20,601 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) [2024-11-09 14:53:20,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 14:53:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:20,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 1820 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 14:53:20,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 14:53:20,994 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:20,995 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 14:53:20,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417968350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:20,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 14:53:20,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-09 14:53:20,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105544716] [2024-11-09 14:53:20,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:20,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 14:53:20,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:20,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 14:53:20,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-09 14:53:21,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-11-09 14:53:21,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 87 transitions, 375 flow. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 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) [2024-11-09 14:53:21,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:21,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-11-09 14:53:21,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:21,835 INFO L124 PetriNetUnfolderBase]: 3142/6171 cut-off events. [2024-11-09 14:53:21,835 INFO L125 PetriNetUnfolderBase]: For 4802/4836 co-relation queries the response was YES. [2024-11-09 14:53:21,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16635 conditions, 6171 events. 3142/6171 cut-off events. For 4802/4836 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 41012 event pairs, 692 based on Foata normal form. 150/6062 useless extension candidates. Maximal degree in co-relation 16617. Up to 3426 conditions per place. [2024-11-09 14:53:21,874 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 83 selfloop transitions, 5 changer transitions 0/113 dead transitions. [2024-11-09 14:53:21,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 113 transitions, 657 flow [2024-11-09 14:53:21,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 14:53:21,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 14:53:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 194 transitions. [2024-11-09 14:53:21,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5843373493975904 [2024-11-09 14:53:21,876 INFO L175 Difference]: Start difference. First operand has 108 places, 87 transitions, 375 flow. Second operand 4 states and 194 transitions. [2024-11-09 14:53:21,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 113 transitions, 657 flow [2024-11-09 14:53:21,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 113 transitions, 639 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-09 14:53:21,895 INFO L231 Difference]: Finished difference. Result has 102 places, 85 transitions, 359 flow [2024-11-09 14:53:21,895 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=359, PETRI_PLACES=102, PETRI_TRANSITIONS=85} [2024-11-09 14:53:21,895 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 25 predicate places. [2024-11-09 14:53:21,896 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 85 transitions, 359 flow [2024-11-09 14:53:21,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 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) [2024-11-09 14:53:21,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:21,896 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:21,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 14:53:22,097 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,SelfDestructingSolverStorable13 [2024-11-09 14:53:22,097 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:22,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:22,098 INFO L85 PathProgramCache]: Analyzing trace with hash 313704786, now seen corresponding path program 1 times [2024-11-09 14:53:22,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:22,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356747019] [2024-11-09 14:53:22,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:22,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 14:53:22,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:22,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356747019] [2024-11-09 14:53:22,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356747019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:22,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:22,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 14:53:22,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830007395] [2024-11-09 14:53:22,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:22,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 14:53:22,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:22,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 14:53:22,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 14:53:22,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-11-09 14:53:22,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 85 transitions, 359 flow. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:22,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:22,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-11-09 14:53:22,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:23,123 INFO L124 PetriNetUnfolderBase]: 2784/5679 cut-off events. [2024-11-09 14:53:23,123 INFO L125 PetriNetUnfolderBase]: For 4691/4711 co-relation queries the response was YES. [2024-11-09 14:53:23,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15244 conditions, 5679 events. 2784/5679 cut-off events. For 4691/4711 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 38206 event pairs, 748 based on Foata normal form. 150/5680 useless extension candidates. Maximal degree in co-relation 15226. Up to 2901 conditions per place. [2024-11-09 14:53:23,157 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 87 selfloop transitions, 6 changer transitions 0/118 dead transitions. [2024-11-09 14:53:23,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 118 transitions, 677 flow [2024-11-09 14:53:23,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 14:53:23,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 14:53:23,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 199 transitions. [2024-11-09 14:53:23,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5993975903614458 [2024-11-09 14:53:23,159 INFO L175 Difference]: Start difference. First operand has 102 places, 85 transitions, 359 flow. Second operand 4 states and 199 transitions. [2024-11-09 14:53:23,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 118 transitions, 677 flow [2024-11-09 14:53:23,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 118 transitions, 667 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 14:53:23,170 INFO L231 Difference]: Finished difference. Result has 101 places, 84 transitions, 361 flow [2024-11-09 14:53:23,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=361, PETRI_PLACES=101, PETRI_TRANSITIONS=84} [2024-11-09 14:53:23,171 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 24 predicate places. [2024-11-09 14:53:23,171 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 84 transitions, 361 flow [2024-11-09 14:53:23,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:23,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:23,171 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:23,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 14:53:23,172 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:23,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:23,172 INFO L85 PathProgramCache]: Analyzing trace with hash -844393650, now seen corresponding path program 1 times [2024-11-09 14:53:23,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:23,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447451836] [2024-11-09 14:53:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:23,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:23,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:23,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:23,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447451836] [2024-11-09 14:53:23,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447451836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:23,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:23,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 14:53:23,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773658107] [2024-11-09 14:53:23,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:23,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 14:53:23,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:23,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 14:53:23,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 14:53:23,444 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 83 [2024-11-09 14:53:23,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 84 transitions, 361 flow. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:23,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:23,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 83 [2024-11-09 14:53:23,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:24,095 INFO L124 PetriNetUnfolderBase]: 1726/3928 cut-off events. [2024-11-09 14:53:24,096 INFO L125 PetriNetUnfolderBase]: For 4127/4127 co-relation queries the response was YES. [2024-11-09 14:53:24,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10760 conditions, 3928 events. 1726/3928 cut-off events. For 4127/4127 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 25732 event pairs, 514 based on Foata normal form. 166/4013 useless extension candidates. Maximal degree in co-relation 10742. Up to 1934 conditions per place. [2024-11-09 14:53:24,122 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 63 selfloop transitions, 6 changer transitions 0/96 dead transitions. [2024-11-09 14:53:24,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 96 transitions, 542 flow [2024-11-09 14:53:24,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 14:53:24,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 14:53:24,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2024-11-09 14:53:24,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6626506024096386 [2024-11-09 14:53:24,124 INFO L175 Difference]: Start difference. First operand has 101 places, 84 transitions, 361 flow. Second operand 3 states and 165 transitions. [2024-11-09 14:53:24,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 96 transitions, 542 flow [2024-11-09 14:53:24,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 96 transitions, 512 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-09 14:53:24,135 INFO L231 Difference]: Finished difference. Result has 100 places, 79 transitions, 308 flow [2024-11-09 14:53:24,135 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=100, PETRI_TRANSITIONS=79} [2024-11-09 14:53:24,135 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 23 predicate places. [2024-11-09 14:53:24,136 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 79 transitions, 308 flow [2024-11-09 14:53:24,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:24,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:24,136 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:24,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 14:53:24,137 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:24,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:24,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1876325026, now seen corresponding path program 1 times [2024-11-09 14:53:24,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:24,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578254494] [2024-11-09 14:53:24,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:24,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:25,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:25,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578254494] [2024-11-09 14:53:25,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578254494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:25,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:25,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 14:53:25,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203093199] [2024-11-09 14:53:25,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:25,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 14:53:25,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:25,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 14:53:25,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 14:53:25,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 83 [2024-11-09 14:53:25,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 79 transitions, 308 flow. Second operand has 8 states, 8 states have (on average 35.125) internal successors, (281), 8 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:25,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:25,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 83 [2024-11-09 14:53:25,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:26,686 INFO L124 PetriNetUnfolderBase]: 1760/3861 cut-off events. [2024-11-09 14:53:26,686 INFO L125 PetriNetUnfolderBase]: For 3510/3512 co-relation queries the response was YES. [2024-11-09 14:53:26,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10562 conditions, 3861 events. 1760/3861 cut-off events. For 3510/3512 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 24277 event pairs, 308 based on Foata normal form. 36/3801 useless extension candidates. Maximal degree in co-relation 10543. Up to 1776 conditions per place. [2024-11-09 14:53:26,706 INFO L140 encePairwiseOnDemand]: 72/83 looper letters, 116 selfloop transitions, 10 changer transitions 2/153 dead transitions. [2024-11-09 14:53:26,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 153 transitions, 898 flow [2024-11-09 14:53:26,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 14:53:26,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 14:53:26,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 395 transitions. [2024-11-09 14:53:26,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5287817938420348 [2024-11-09 14:53:26,709 INFO L175 Difference]: Start difference. First operand has 100 places, 79 transitions, 308 flow. Second operand 9 states and 395 transitions. [2024-11-09 14:53:26,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 153 transitions, 898 flow [2024-11-09 14:53:26,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 153 transitions, 886 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 14:53:26,719 INFO L231 Difference]: Finished difference. Result has 107 places, 78 transitions, 316 flow [2024-11-09 14:53:26,719 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=316, PETRI_PLACES=107, PETRI_TRANSITIONS=78} [2024-11-09 14:53:26,719 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 30 predicate places. [2024-11-09 14:53:26,719 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 78 transitions, 316 flow [2024-11-09 14:53:26,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 35.125) internal successors, (281), 8 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:26,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:26,720 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:26,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 14:53:26,720 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:26,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:26,721 INFO L85 PathProgramCache]: Analyzing trace with hash -888810302, now seen corresponding path program 1 times [2024-11-09 14:53:26,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:26,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089615121] [2024-11-09 14:53:26,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:26,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:29,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:29,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089615121] [2024-11-09 14:53:29,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089615121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:29,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:29,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 14:53:29,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432694292] [2024-11-09 14:53:29,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:29,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 14:53:29,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:29,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 14:53:29,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-09 14:53:29,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 83 [2024-11-09 14:53:29,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 78 transitions, 316 flow. Second operand has 10 states, 10 states have (on average 31.7) internal successors, (317), 10 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:29,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:29,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 83 [2024-11-09 14:53:29,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:30,098 INFO L124 PetriNetUnfolderBase]: 2162/4613 cut-off events. [2024-11-09 14:53:30,099 INFO L125 PetriNetUnfolderBase]: For 4348/4348 co-relation queries the response was YES. [2024-11-09 14:53:30,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12604 conditions, 4613 events. 2162/4613 cut-off events. For 4348/4348 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 29209 event pairs, 213 based on Foata normal form. 0/4477 useless extension candidates. Maximal degree in co-relation 12584. Up to 1544 conditions per place. [2024-11-09 14:53:30,119 INFO L140 encePairwiseOnDemand]: 72/83 looper letters, 146 selfloop transitions, 12 changer transitions 2/182 dead transitions. [2024-11-09 14:53:30,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 182 transitions, 1086 flow [2024-11-09 14:53:30,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 14:53:30,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-09 14:53:30,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 454 transitions. [2024-11-09 14:53:30,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49726177437020813 [2024-11-09 14:53:30,124 INFO L175 Difference]: Start difference. First operand has 107 places, 78 transitions, 316 flow. Second operand 11 states and 454 transitions. [2024-11-09 14:53:30,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 182 transitions, 1086 flow [2024-11-09 14:53:30,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 182 transitions, 1068 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-09 14:53:30,137 INFO L231 Difference]: Finished difference. Result has 114 places, 83 transitions, 363 flow [2024-11-09 14:53:30,137 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=363, PETRI_PLACES=114, PETRI_TRANSITIONS=83} [2024-11-09 14:53:30,138 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 37 predicate places. [2024-11-09 14:53:30,138 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 83 transitions, 363 flow [2024-11-09 14:53:30,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 31.7) internal successors, (317), 10 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:30,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:30,139 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:30,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 14:53:30,139 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:30,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:30,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1136117767, now seen corresponding path program 1 times [2024-11-09 14:53:30,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:30,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351589494] [2024-11-09 14:53:30,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:30,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:30,284 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:30,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:30,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351589494] [2024-11-09 14:53:30,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351589494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:30,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:30,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 14:53:30,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115229183] [2024-11-09 14:53:30,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:30,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 14:53:30,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:30,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 14:53:30,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 14:53:30,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 83 [2024-11-09 14:53:30,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 83 transitions, 363 flow. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:30,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:30,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 83 [2024-11-09 14:53:30,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:30,654 INFO L124 PetriNetUnfolderBase]: 1680/3789 cut-off events. [2024-11-09 14:53:30,654 INFO L125 PetriNetUnfolderBase]: For 4142/4148 co-relation queries the response was YES. [2024-11-09 14:53:30,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10342 conditions, 3789 events. 1680/3789 cut-off events. For 4142/4148 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 23334 event pairs, 1011 based on Foata normal form. 30/3729 useless extension candidates. Maximal degree in co-relation 10319. Up to 1854 conditions per place. [2024-11-09 14:53:30,672 INFO L140 encePairwiseOnDemand]: 80/83 looper letters, 70 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2024-11-09 14:53:30,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 100 transitions, 577 flow [2024-11-09 14:53:30,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 14:53:30,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 14:53:30,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2024-11-09 14:53:30,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6626506024096386 [2024-11-09 14:53:30,673 INFO L175 Difference]: Start difference. First operand has 114 places, 83 transitions, 363 flow. Second operand 3 states and 165 transitions. [2024-11-09 14:53:30,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 100 transitions, 577 flow [2024-11-09 14:53:30,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 100 transitions, 562 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-09 14:53:30,684 INFO L231 Difference]: Finished difference. Result has 111 places, 81 transitions, 344 flow [2024-11-09 14:53:30,684 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=111, PETRI_TRANSITIONS=81} [2024-11-09 14:53:30,685 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 34 predicate places. [2024-11-09 14:53:30,685 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 81 transitions, 344 flow [2024-11-09 14:53:30,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:30,685 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:30,685 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:30,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 14:53:30,686 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:30,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:30,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1148359321, now seen corresponding path program 1 times [2024-11-09 14:53:30,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:30,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220441067] [2024-11-09 14:53:30,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:30,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:32,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:32,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:32,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220441067] [2024-11-09 14:53:32,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220441067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:32,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:32,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 14:53:32,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397398585] [2024-11-09 14:53:32,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:32,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 14:53:32,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:32,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 14:53:32,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-09 14:53:32,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 83 [2024-11-09 14:53:32,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 81 transitions, 344 flow. Second operand has 10 states, 10 states have (on average 32.7) internal successors, (327), 10 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:32,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:32,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 83 [2024-11-09 14:53:32,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:33,367 INFO L124 PetriNetUnfolderBase]: 1732/3785 cut-off events. [2024-11-09 14:53:33,367 INFO L125 PetriNetUnfolderBase]: For 3786/3786 co-relation queries the response was YES. [2024-11-09 14:53:33,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10436 conditions, 3785 events. 1732/3785 cut-off events. For 3786/3786 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 22796 event pairs, 297 based on Foata normal form. 35/3742 useless extension candidates. Maximal degree in co-relation 10411. Up to 1344 conditions per place. [2024-11-09 14:53:33,384 INFO L140 encePairwiseOnDemand]: 73/83 looper letters, 108 selfloop transitions, 14 changer transitions 7/153 dead transitions. [2024-11-09 14:53:33,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 153 transitions, 924 flow [2024-11-09 14:53:33,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 14:53:33,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 14:53:33,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 404 transitions. [2024-11-09 14:53:33,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4867469879518072 [2024-11-09 14:53:33,386 INFO L175 Difference]: Start difference. First operand has 111 places, 81 transitions, 344 flow. Second operand 10 states and 404 transitions. [2024-11-09 14:53:33,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 153 transitions, 924 flow [2024-11-09 14:53:33,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 153 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 14:53:33,397 INFO L231 Difference]: Finished difference. Result has 117 places, 80 transitions, 366 flow [2024-11-09 14:53:33,397 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=366, PETRI_PLACES=117, PETRI_TRANSITIONS=80} [2024-11-09 14:53:33,397 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 40 predicate places. [2024-11-09 14:53:33,397 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 80 transitions, 366 flow [2024-11-09 14:53:33,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 32.7) internal successors, (327), 10 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:33,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:33,398 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:33,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 14:53:33,398 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:33,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:33,399 INFO L85 PathProgramCache]: Analyzing trace with hash -233210274, now seen corresponding path program 1 times [2024-11-09 14:53:33,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:33,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518233577] [2024-11-09 14:53:33,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:33,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:35,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:35,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518233577] [2024-11-09 14:53:35,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518233577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:35,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:35,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 14:53:35,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617307966] [2024-11-09 14:53:35,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:35,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 14:53:35,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:35,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 14:53:35,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-09 14:53:35,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 83 [2024-11-09 14:53:35,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 80 transitions, 366 flow. Second operand has 10 states, 10 states have (on average 32.9) internal successors, (329), 10 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:35,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:35,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 83 [2024-11-09 14:53:35,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:36,179 INFO L124 PetriNetUnfolderBase]: 1808/3866 cut-off events. [2024-11-09 14:53:36,180 INFO L125 PetriNetUnfolderBase]: For 4390/4392 co-relation queries the response was YES. [2024-11-09 14:53:36,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10892 conditions, 3866 events. 1808/3866 cut-off events. For 4390/4392 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 22689 event pairs, 265 based on Foata normal form. 26/3822 useless extension candidates. Maximal degree in co-relation 10867. Up to 972 conditions per place. [2024-11-09 14:53:36,202 INFO L140 encePairwiseOnDemand]: 68/83 looper letters, 136 selfloop transitions, 13 changer transitions 16/188 dead transitions. [2024-11-09 14:53:36,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 188 transitions, 1166 flow [2024-11-09 14:53:36,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 14:53:36,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 14:53:36,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 498 transitions. [2024-11-09 14:53:36,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-09 14:53:36,204 INFO L175 Difference]: Start difference. First operand has 117 places, 80 transitions, 366 flow. Second operand 12 states and 498 transitions. [2024-11-09 14:53:36,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 188 transitions, 1166 flow [2024-11-09 14:53:36,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 188 transitions, 1142 flow, removed 1 selfloop flow, removed 9 redundant places. [2024-11-09 14:53:36,217 INFO L231 Difference]: Finished difference. Result has 122 places, 84 transitions, 397 flow [2024-11-09 14:53:36,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=397, PETRI_PLACES=122, PETRI_TRANSITIONS=84} [2024-11-09 14:53:36,217 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 45 predicate places. [2024-11-09 14:53:36,217 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 84 transitions, 397 flow [2024-11-09 14:53:36,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 32.9) internal successors, (329), 10 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:36,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:36,218 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:36,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 14:53:36,218 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:36,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:36,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1265529457, now seen corresponding path program 1 times [2024-11-09 14:53:36,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:36,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994913128] [2024-11-09 14:53:36,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:36,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:37,882 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:37,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:37,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994913128] [2024-11-09 14:53:37,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994913128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 14:53:37,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 14:53:37,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 14:53:37,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987119307] [2024-11-09 14:53:37,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 14:53:37,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 14:53:37,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:37,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 14:53:37,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-09 14:53:37,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 83 [2024-11-09 14:53:37,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 84 transitions, 397 flow. Second operand has 11 states, 11 states have (on average 35.09090909090909) internal successors, (386), 11 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:37,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:37,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 83 [2024-11-09 14:53:37,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 14:53:38,950 INFO L124 PetriNetUnfolderBase]: 1737/3778 cut-off events. [2024-11-09 14:53:38,950 INFO L125 PetriNetUnfolderBase]: For 4449/4451 co-relation queries the response was YES. [2024-11-09 14:53:38,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10838 conditions, 3778 events. 1737/3778 cut-off events. For 4449/4451 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 22086 event pairs, 258 based on Foata normal form. 26/3769 useless extension candidates. Maximal degree in co-relation 10811. Up to 926 conditions per place. [2024-11-09 14:53:38,969 INFO L140 encePairwiseOnDemand]: 69/83 looper letters, 136 selfloop transitions, 13 changer transitions 15/189 dead transitions. [2024-11-09 14:53:38,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 189 transitions, 1190 flow [2024-11-09 14:53:38,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 14:53:38,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 14:53:38,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 519 transitions. [2024-11-09 14:53:38,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5210843373493976 [2024-11-09 14:53:38,970 INFO L175 Difference]: Start difference. First operand has 122 places, 84 transitions, 397 flow. Second operand 12 states and 519 transitions. [2024-11-09 14:53:38,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 189 transitions, 1190 flow [2024-11-09 14:53:38,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 189 transitions, 1172 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-09 14:53:38,982 INFO L231 Difference]: Finished difference. Result has 125 places, 83 transitions, 400 flow [2024-11-09 14:53:38,983 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=400, PETRI_PLACES=125, PETRI_TRANSITIONS=83} [2024-11-09 14:53:38,983 INFO L277 CegarLoopForPetriNet]: 77 programPoint places, 48 predicate places. [2024-11-09 14:53:38,983 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 83 transitions, 400 flow [2024-11-09 14:53:38,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 35.09090909090909) internal successors, (386), 11 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:38,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 14:53:38,984 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:53:38,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 14:53:38,984 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-09 14:53:38,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:53:38,985 INFO L85 PathProgramCache]: Analyzing trace with hash -2098436067, now seen corresponding path program 1 times [2024-11-09 14:53:38,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:53:38,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361372531] [2024-11-09 14:53:38,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:38,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:53:39,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:41,981 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:41,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 14:53:41,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361372531] [2024-11-09 14:53:41,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361372531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 14:53:41,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457147958] [2024-11-09 14:53:41,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:53:41,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 14:53:41,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 14:53:41,985 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 14:53:41,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 14:53:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 14:53:42,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 1972 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-09 14:53:42,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 14:53:42,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 1 [2024-11-09 14:53:42,459 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 14:53:42,478 INFO L349 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2024-11-09 14:53:42,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 35 [2024-11-09 14:53:42,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 14:53:42,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-09 14:53:42,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 15 [2024-11-09 14:53:42,667 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 14:53:42,678 INFO L349 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2024-11-09 14:53:42,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 35 [2024-11-09 14:53:42,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 14:53:42,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-09 14:53:42,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 15 [2024-11-09 14:53:42,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 14:53:42,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-09 14:53:43,029 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 14:53:43,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-09 14:53:43,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2024-11-09 14:53:43,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 14:53:43,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 25 [2024-11-09 14:53:43,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:43,137 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 14:53:46,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 14:53:46,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457147958] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 14:53:46,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 14:53:46,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 14] total 39 [2024-11-09 14:53:46,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833208564] [2024-11-09 14:53:46,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 14:53:46,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-09 14:53:46,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 14:53:46,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-09 14:53:46,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=1352, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 14:53:46,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 83 [2024-11-09 14:53:46,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 83 transitions, 400 flow. Second operand has 41 states, 41 states have (on average 25.853658536585368) internal successors, (1060), 41 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 14:53:46,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 14:53:46,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 83 [2024-11-09 14:53:46,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand