./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread/queue_longest.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f 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_longest.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 5fb3c623242420f3b3352ce2377df781fcc1efd56f82dd0011f9620e127821b3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:03:35,888 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:03:35,939 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:03:35,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:03:35,944 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:03:35,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:03:35,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:03:35,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:03:35,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:03:35,978 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:03:35,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:03:35,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:03:35,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:03:35,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:03:35,981 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:03:35,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:03:35,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:03:35,981 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:03:35,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:03:35,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:03:35,984 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:03:35,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:03:35,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:03:35,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:03:35,984 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:03:35,985 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:03:35,985 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:03:35,985 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:03:35,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:03:35,985 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:03:35,985 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:03:35,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:03:35,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:03:35,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:03:35,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:03:35,986 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:03:35,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:03:35,986 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:03:35,986 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:03:35,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:03:35,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:03:35,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:03:35,988 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:03:35,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:03:35,988 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fb3c623242420f3b3352ce2377df781fcc1efd56f82dd0011f9620e127821b3 [2024-11-10 22:03:36,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:03:36,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:03:36,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:03:36,215 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:03:36,216 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:03:36,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/queue_longest.i [2024-11-10 22:03:37,377 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:03:37,573 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:03:37,574 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i [2024-11-10 22:03:37,589 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4e46b693/729223b217ac4f9681ed8f4d215c0841/FLAG57749755c [2024-11-10 22:03:37,599 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4e46b693/729223b217ac4f9681ed8f4d215c0841 [2024-11-10 22:03:37,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:03:37,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:03:37,604 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:03:37,604 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:03:37,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:03:37,609 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:03:37" (1/1) ... [2024-11-10 22:03:37,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a28c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:37, skipping insertion in model container [2024-11-10 22:03:37,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:03:37" (1/1) ... [2024-11-10 22:03:37,641 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:03:38,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:03:38,069 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:03:38,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:03:38,277 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:03:38,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38 WrapperNode [2024-11-10 22:03:38,277 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:03:38,278 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:03:38,278 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:03:38,278 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:03:38,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38" (1/1) ... [2024-11-10 22:03:38,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38" (1/1) ... [2024-11-10 22:03:38,395 INFO L138 Inliner]: procedures = 274, calls = 1659, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 1862 [2024-11-10 22:03:38,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:03:38,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:03:38,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:03:38,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:03:38,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38" (1/1) ... [2024-11-10 22:03:38,404 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38" (1/1) ... [2024-11-10 22:03:38,417 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38" (1/1) ... [2024-11-10 22:03:38,459 INFO L175 MemorySlicer]: Split 1644 memory accesses to 4 slices as follows [2, 5, 803, 834]. 51 percent of accesses are in the largest equivalence class. The 1610 initializations are split as follows [2, 5, 800, 803]. The 16 writes are split as follows [0, 0, 2, 14]. [2024-11-10 22:03:38,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38" (1/1) ... [2024-11-10 22:03:38,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38" (1/1) ... [2024-11-10 22:03:38,490 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38" (1/1) ... [2024-11-10 22:03:38,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38" (1/1) ... [2024-11-10 22:03:38,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38" (1/1) ... [2024-11-10 22:03:38,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38" (1/1) ... [2024-11-10 22:03:38,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:03:38,515 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:03:38,515 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:03:38,515 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:03:38,516 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38" (1/1) ... [2024-11-10 22:03:38,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:03:38,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:03:38,541 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) [2024-11-10 22:03:38,543 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 [2024-11-10 22:03:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-10 22:03:38,576 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-10 22:03:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-10 22:03:38,576 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-10 22:03:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 22:03:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:03:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:03:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 22:03:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 22:03:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:03:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:03:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 22:03:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 22:03:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 22:03:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:03:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:03:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:03:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 22:03:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 22:03:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:03:38,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:03:38,580 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:03:38,706 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:03:38,707 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:03:40,109 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:03:40,109 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:04:03,189 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:04:03,190 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:04:03,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:04:03 BoogieIcfgContainer [2024-11-10 22:04:03,191 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:04:03,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:04:03,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:04:03,196 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:04:03,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:03:37" (1/3) ... [2024-11-10 22:04:03,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb7f277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:04:03, skipping insertion in model container [2024-11-10 22:04:03,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:03:38" (2/3) ... [2024-11-10 22:04:03,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb7f277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:04:03, skipping insertion in model container [2024-11-10 22:04:03,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:04:03" (3/3) ... [2024-11-10 22:04:03,199 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longest.i [2024-11-10 22:04:03,212 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:04:03,212 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-10 22:04:03,213 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:04:03,302 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 22:04:03,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 89 transitions, 192 flow [2024-11-10 22:04:03,407 INFO L124 PetriNetUnfolderBase]: 11/87 cut-off events. [2024-11-10 22:04:03,408 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 22:04:03,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 87 events. 11/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 229 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2024-11-10 22:04:03,412 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 89 transitions, 192 flow [2024-11-10 22:04:03,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 85 transitions, 179 flow [2024-11-10 22:04:03,424 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:04:03,430 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;@6f37e8b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:04:03,432 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-10 22:04:03,473 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:04:03,473 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-11-10 22:04:03,473 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:04:03,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:03,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:04:03,475 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:03,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:03,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1700064303, now seen corresponding path program 1 times [2024-11-10 22:04:03,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:03,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244693088] [2024-11-10 22:04:03,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:03,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:05,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:05,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:05,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244693088] [2024-11-10 22:04:05,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244693088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:05,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:05,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:04:05,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134068544] [2024-11-10 22:04:05,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:05,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:04:05,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:05,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:04:05,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:04:05,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-10 22:04:05,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 85 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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) [2024-11-10 22:04:05,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:05,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-10 22:04:05,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:05,988 INFO L124 PetriNetUnfolderBase]: 1203/2566 cut-off events. [2024-11-10 22:04:05,988 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-11-10 22:04:05,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4494 conditions, 2566 events. 1203/2566 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 16893 event pairs, 201 based on Foata normal form. 131/2252 useless extension candidates. Maximal degree in co-relation 4422. Up to 1560 conditions per place. [2024-11-10 22:04:06,007 INFO L140 encePairwiseOnDemand]: 79/89 looper letters, 72 selfloop transitions, 6 changer transitions 0/113 dead transitions. [2024-11-10 22:04:06,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 113 transitions, 397 flow [2024-11-10 22:04:06,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:04:06,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:04:06,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 232 transitions. [2024-11-10 22:04:06,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.651685393258427 [2024-11-10 22:04:06,020 INFO L175 Difference]: Start difference. First operand has 81 places, 85 transitions, 179 flow. Second operand 4 states and 232 transitions. [2024-11-10 22:04:06,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 113 transitions, 397 flow [2024-11-10 22:04:06,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 113 transitions, 390 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:04:06,028 INFO L231 Difference]: Finished difference. Result has 84 places, 86 transitions, 210 flow [2024-11-10 22:04:06,030 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=84, PETRI_TRANSITIONS=86} [2024-11-10 22:04:06,033 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 3 predicate places. [2024-11-10 22:04:06,034 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 86 transitions, 210 flow [2024-11-10 22:04:06,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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) [2024-11-10 22:04:06,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:06,034 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:04:06,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:04:06,035 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:06,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:06,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1162382011, now seen corresponding path program 1 times [2024-11-10 22:04:06,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:06,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544585667] [2024-11-10 22:04:06,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:06,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:07,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:07,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544585667] [2024-11-10 22:04:07,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544585667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:07,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:07,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:04:07,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427623276] [2024-11-10 22:04:07,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:07,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:04:07,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:07,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:04:07,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:04:07,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-10 22:04:07,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 86 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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) [2024-11-10 22:04:07,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:07,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-10 22:04:07,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:08,488 INFO L124 PetriNetUnfolderBase]: 1203/2594 cut-off events. [2024-11-10 22:04:08,488 INFO L125 PetriNetUnfolderBase]: For 452/455 co-relation queries the response was YES. [2024-11-10 22:04:08,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4836 conditions, 2594 events. 1203/2594 cut-off events. For 452/455 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 17333 event pairs, 256 based on Foata normal form. 38/2260 useless extension candidates. Maximal degree in co-relation 4072. Up to 1694 conditions per place. [2024-11-10 22:04:08,499 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 80 selfloop transitions, 6 changer transitions 0/121 dead transitions. [2024-11-10 22:04:08,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 121 transitions, 462 flow [2024-11-10 22:04:08,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:04:08,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:04:08,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 273 transitions. [2024-11-10 22:04:08,502 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6134831460674157 [2024-11-10 22:04:08,502 INFO L175 Difference]: Start difference. First operand has 84 places, 86 transitions, 210 flow. Second operand 5 states and 273 transitions. [2024-11-10 22:04:08,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 121 transitions, 462 flow [2024-11-10 22:04:08,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 121 transitions, 456 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:04:08,508 INFO L231 Difference]: Finished difference. Result has 88 places, 87 transitions, 227 flow [2024-11-10 22:04:08,508 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=227, PETRI_PLACES=88, PETRI_TRANSITIONS=87} [2024-11-10 22:04:08,509 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 7 predicate places. [2024-11-10 22:04:08,509 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 87 transitions, 227 flow [2024-11-10 22:04:08,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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) [2024-11-10 22:04:08,510 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:08,510 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:04:08,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:04:08,510 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:08,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:08,512 INFO L85 PathProgramCache]: Analyzing trace with hash -357491031, now seen corresponding path program 1 times [2024-11-10 22:04:08,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:08,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280754497] [2024-11-10 22:04:08,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:08,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:09,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:09,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:09,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280754497] [2024-11-10 22:04:09,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280754497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:09,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:09,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:04:09,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010893680] [2024-11-10 22:04:09,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:09,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:04:09,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:09,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:04:09,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:04:09,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-10 22:04:09,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 87 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 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) [2024-11-10 22:04:09,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:09,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-10 22:04:09,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:10,442 INFO L124 PetriNetUnfolderBase]: 1283/2704 cut-off events. [2024-11-10 22:04:10,443 INFO L125 PetriNetUnfolderBase]: For 526/542 co-relation queries the response was YES. [2024-11-10 22:04:10,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5143 conditions, 2704 events. 1283/2704 cut-off events. For 526/542 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 17998 event pairs, 258 based on Foata normal form. 40/2336 useless extension candidates. Maximal degree in co-relation 4369. Up to 1740 conditions per place. [2024-11-10 22:04:10,456 INFO L140 encePairwiseOnDemand]: 80/89 looper letters, 101 selfloop transitions, 11 changer transitions 0/147 dead transitions. [2024-11-10 22:04:10,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 147 transitions, 591 flow [2024-11-10 22:04:10,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:04:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:04:10,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 374 transitions. [2024-11-10 22:04:10,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6003210272873194 [2024-11-10 22:04:10,459 INFO L175 Difference]: Start difference. First operand has 88 places, 87 transitions, 227 flow. Second operand 7 states and 374 transitions. [2024-11-10 22:04:10,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 147 transitions, 591 flow [2024-11-10 22:04:10,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 147 transitions, 577 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-10 22:04:10,465 INFO L231 Difference]: Finished difference. Result has 94 places, 93 transitions, 282 flow [2024-11-10 22:04:10,465 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=282, PETRI_PLACES=94, PETRI_TRANSITIONS=93} [2024-11-10 22:04:10,466 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 13 predicate places. [2024-11-10 22:04:10,466 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 93 transitions, 282 flow [2024-11-10 22:04:10,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 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) [2024-11-10 22:04:10,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:10,467 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:04:10,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:04:10,467 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:10,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:10,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1101916526, now seen corresponding path program 1 times [2024-11-10 22:04:10,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:10,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269185073] [2024-11-10 22:04:10,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:10,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:10,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:10,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:10,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269185073] [2024-11-10 22:04:10,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269185073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:10,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:10,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:04:10,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136004801] [2024-11-10 22:04:10,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:10,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:04:10,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:10,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:04:10,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:04:10,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 89 [2024-11-10 22:04:10,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 93 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2024-11-10 22:04:10,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:10,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 89 [2024-11-10 22:04:10,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:11,155 INFO L124 PetriNetUnfolderBase]: 961/2374 cut-off events. [2024-11-10 22:04:11,156 INFO L125 PetriNetUnfolderBase]: For 534/534 co-relation queries the response was YES. [2024-11-10 22:04:11,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4231 conditions, 2374 events. 961/2374 cut-off events. For 534/534 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 14781 event pairs, 456 based on Foata normal form. 36/2050 useless extension candidates. Maximal degree in co-relation 4221. Up to 843 conditions per place. [2024-11-10 22:04:11,167 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 61 selfloop transitions, 3 changer transitions 0/99 dead transitions. [2024-11-10 22:04:11,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 99 transitions, 372 flow [2024-11-10 22:04:11,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:04:11,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:04:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 188 transitions. [2024-11-10 22:04:11,168 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.704119850187266 [2024-11-10 22:04:11,168 INFO L175 Difference]: Start difference. First operand has 94 places, 93 transitions, 282 flow. Second operand 3 states and 188 transitions. [2024-11-10 22:04:11,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 99 transitions, 372 flow [2024-11-10 22:04:11,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 99 transitions, 333 flow, removed 4 selfloop flow, removed 13 redundant places. [2024-11-10 22:04:11,172 INFO L231 Difference]: Finished difference. Result has 78 places, 79 transitions, 175 flow [2024-11-10 22:04:11,172 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=78, PETRI_TRANSITIONS=79} [2024-11-10 22:04:11,172 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, -3 predicate places. [2024-11-10 22:04:11,173 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 79 transitions, 175 flow [2024-11-10 22:04:11,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2024-11-10 22:04:11,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:11,173 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:04:11,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:04:11,173 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:11,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:11,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1915046863, now seen corresponding path program 1 times [2024-11-10 22:04:11,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:11,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661952834] [2024-11-10 22:04:11,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:11,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:11,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:11,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:11,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661952834] [2024-11-10 22:04:11,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661952834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:11,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:11,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:04:11,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907488694] [2024-11-10 22:04:11,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:11,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:04:11,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:11,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:04:11,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:04:11,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 89 [2024-11-10 22:04:11,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 79 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-11-10 22:04:11,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:11,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 89 [2024-11-10 22:04:11,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:12,446 INFO L124 PetriNetUnfolderBase]: 1881/4263 cut-off events. [2024-11-10 22:04:12,447 INFO L125 PetriNetUnfolderBase]: For 188/188 co-relation queries the response was YES. [2024-11-10 22:04:12,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7492 conditions, 4263 events. 1881/4263 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 28422 event pairs, 976 based on Foata normal form. 130/3819 useless extension candidates. Maximal degree in co-relation 7487. Up to 2024 conditions per place. [2024-11-10 22:04:12,466 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 110 selfloop transitions, 3 changer transitions 0/145 dead transitions. [2024-11-10 22:04:12,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 145 transitions, 550 flow [2024-11-10 22:04:12,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:04:12,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:04:12,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-11-10 22:04:12,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2024-11-10 22:04:12,468 INFO L175 Difference]: Start difference. First operand has 78 places, 79 transitions, 175 flow. Second operand 4 states and 265 transitions. [2024-11-10 22:04:12,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 145 transitions, 550 flow [2024-11-10 22:04:12,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 145 transitions, 544 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:04:12,471 INFO L231 Difference]: Finished difference. Result has 82 places, 81 transitions, 196 flow [2024-11-10 22:04:12,472 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=82, PETRI_TRANSITIONS=81} [2024-11-10 22:04:12,473 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 1 predicate places. [2024-11-10 22:04:12,474 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 81 transitions, 196 flow [2024-11-10 22:04:12,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-11-10 22:04:12,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:12,475 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:04:12,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:04:12,475 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:12,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:12,475 INFO L85 PathProgramCache]: Analyzing trace with hash -228079020, now seen corresponding path program 1 times [2024-11-10 22:04:12,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:12,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371730864] [2024-11-10 22:04:12,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:12,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:13,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:13,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371730864] [2024-11-10 22:04:13,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371730864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:13,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:13,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:04:13,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332480083] [2024-11-10 22:04:13,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:13,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:04:13,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:13,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:04:13,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:04:13,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 89 [2024-11-10 22:04:13,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 196 flow. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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) [2024-11-10 22:04:13,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:13,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 89 [2024-11-10 22:04:13,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:14,331 INFO L124 PetriNetUnfolderBase]: 1607/3822 cut-off events. [2024-11-10 22:04:14,332 INFO L125 PetriNetUnfolderBase]: For 682/794 co-relation queries the response was YES. [2024-11-10 22:04:14,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7047 conditions, 3822 events. 1607/3822 cut-off events. For 682/794 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 25999 event pairs, 259 based on Foata normal form. 0/3336 useless extension candidates. Maximal degree in co-relation 7040. Up to 2233 conditions per place. [2024-11-10 22:04:14,355 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 73 selfloop transitions, 5 changer transitions 0/113 dead transitions. [2024-11-10 22:04:14,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 113 transitions, 464 flow [2024-11-10 22:04:14,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:04:14,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:04:14,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 275 transitions. [2024-11-10 22:04:14,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6179775280898876 [2024-11-10 22:04:14,356 INFO L175 Difference]: Start difference. First operand has 82 places, 81 transitions, 196 flow. Second operand 5 states and 275 transitions. [2024-11-10 22:04:14,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 113 transitions, 464 flow [2024-11-10 22:04:14,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 113 transitions, 456 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:04:14,358 INFO L231 Difference]: Finished difference. Result has 85 places, 80 transitions, 202 flow [2024-11-10 22:04:14,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=202, PETRI_PLACES=85, PETRI_TRANSITIONS=80} [2024-11-10 22:04:14,359 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2024-11-10 22:04:14,360 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 80 transitions, 202 flow [2024-11-10 22:04:14,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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) [2024-11-10 22:04:14,361 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:14,361 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] [2024-11-10 22:04:14,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:04:14,361 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:14,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:14,362 INFO L85 PathProgramCache]: Analyzing trace with hash -389239919, now seen corresponding path program 1 times [2024-11-10 22:04:14,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:14,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710151141] [2024-11-10 22:04:14,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:14,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:16,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:16,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710151141] [2024-11-10 22:04:16,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710151141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:16,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:16,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 22:04:16,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162527] [2024-11-10 22:04:16,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:16,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:04:16,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:16,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:04:16,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:04:16,993 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 89 [2024-11-10 22:04:16,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 80 transitions, 202 flow. Second operand has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 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) [2024-11-10 22:04:16,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:16,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 89 [2024-11-10 22:04:16,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:18,761 INFO L124 PetriNetUnfolderBase]: 2180/4740 cut-off events. [2024-11-10 22:04:18,762 INFO L125 PetriNetUnfolderBase]: For 809/953 co-relation queries the response was YES. [2024-11-10 22:04:18,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9177 conditions, 4740 events. 2180/4740 cut-off events. For 809/953 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 32338 event pairs, 410 based on Foata normal form. 22/4178 useless extension candidates. Maximal degree in co-relation 9170. Up to 2293 conditions per place. [2024-11-10 22:04:18,781 INFO L140 encePairwiseOnDemand]: 80/89 looper letters, 132 selfloop transitions, 8 changer transitions 0/171 dead transitions. [2024-11-10 22:04:18,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 171 transitions, 767 flow [2024-11-10 22:04:18,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:04:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:04:18,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 421 transitions. [2024-11-10 22:04:18,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5255930087390761 [2024-11-10 22:04:18,784 INFO L175 Difference]: Start difference. First operand has 85 places, 80 transitions, 202 flow. Second operand 9 states and 421 transitions. [2024-11-10 22:04:18,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 171 transitions, 767 flow [2024-11-10 22:04:18,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 171 transitions, 757 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 22:04:18,789 INFO L231 Difference]: Finished difference. Result has 92 places, 83 transitions, 229 flow [2024-11-10 22:04:18,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=229, PETRI_PLACES=92, PETRI_TRANSITIONS=83} [2024-11-10 22:04:18,789 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 11 predicate places. [2024-11-10 22:04:18,791 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 83 transitions, 229 flow [2024-11-10 22:04:18,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 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) [2024-11-10 22:04:18,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:18,791 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] [2024-11-10 22:04:18,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:04:18,792 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:18,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:18,792 INFO L85 PathProgramCache]: Analyzing trace with hash 818468259, now seen corresponding path program 1 times [2024-11-10 22:04:18,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:18,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139221483] [2024-11-10 22:04:18,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:18,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:21,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:21,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139221483] [2024-11-10 22:04:21,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139221483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:21,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:21,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 22:04:21,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91928097] [2024-11-10 22:04:21,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:21,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:04:21,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:21,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:04:21,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:04:21,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 89 [2024-11-10 22:04:21,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 83 transitions, 229 flow. Second operand has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 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) [2024-11-10 22:04:21,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:21,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 89 [2024-11-10 22:04:21,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:23,351 INFO L124 PetriNetUnfolderBase]: 2148/4698 cut-off events. [2024-11-10 22:04:23,351 INFO L125 PetriNetUnfolderBase]: For 1207/1345 co-relation queries the response was YES. [2024-11-10 22:04:23,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9458 conditions, 4698 events. 2148/4698 cut-off events. For 1207/1345 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 32242 event pairs, 410 based on Foata normal form. 22/4214 useless extension candidates. Maximal degree in co-relation 9449. Up to 2293 conditions per place. [2024-11-10 22:04:23,373 INFO L140 encePairwiseOnDemand]: 80/89 looper letters, 131 selfloop transitions, 8 changer transitions 0/170 dead transitions. [2024-11-10 22:04:23,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 170 transitions, 782 flow [2024-11-10 22:04:23,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:04:23,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:04:23,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 420 transitions. [2024-11-10 22:04:23,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5243445692883895 [2024-11-10 22:04:23,375 INFO L175 Difference]: Start difference. First operand has 92 places, 83 transitions, 229 flow. Second operand 9 states and 420 transitions. [2024-11-10 22:04:23,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 170 transitions, 782 flow [2024-11-10 22:04:23,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 170 transitions, 771 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 22:04:23,383 INFO L231 Difference]: Finished difference. Result has 95 places, 82 transitions, 230 flow [2024-11-10 22:04:23,383 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=230, PETRI_PLACES=95, PETRI_TRANSITIONS=82} [2024-11-10 22:04:23,384 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 14 predicate places. [2024-11-10 22:04:23,384 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 82 transitions, 230 flow [2024-11-10 22:04:23,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 35.0) internal successors, (280), 8 states have internal predecessors, (280), 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) [2024-11-10 22:04:23,384 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:23,384 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:04:23,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:04:23,384 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:23,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:23,388 INFO L85 PathProgramCache]: Analyzing trace with hash -332061069, now seen corresponding path program 1 times [2024-11-10 22:04:23,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:23,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814509745] [2024-11-10 22:04:23,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:23,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:23,671 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:23,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:23,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814509745] [2024-11-10 22:04:23,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814509745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:04:23,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605361550] [2024-11-10 22:04:23,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:23,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:04:23,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:04:23,674 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) [2024-11-10 22:04:23,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:04:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:24,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 3364 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:04:24,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:04:24,137 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:24,137 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:04:24,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605361550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:24,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:04:24,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-10 22:04:24,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80029329] [2024-11-10 22:04:24,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:24,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:04:24,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:24,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:04:24,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:04:24,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 89 [2024-11-10 22:04:24,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 82 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 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) [2024-11-10 22:04:24,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:24,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 89 [2024-11-10 22:04:24,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:25,208 INFO L124 PetriNetUnfolderBase]: 1849/4091 cut-off events. [2024-11-10 22:04:25,209 INFO L125 PetriNetUnfolderBase]: For 1030/1086 co-relation queries the response was YES. [2024-11-10 22:04:25,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8317 conditions, 4091 events. 1849/4091 cut-off events. For 1030/1086 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 27265 event pairs, 100 based on Foata normal form. 77/3810 useless extension candidates. Maximal degree in co-relation 8307. Up to 1330 conditions per place. [2024-11-10 22:04:25,225 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 168 selfloop transitions, 5 changer transitions 0/205 dead transitions. [2024-11-10 22:04:25,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 205 transitions, 944 flow [2024-11-10 22:04:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:04:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:04:25,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 387 transitions. [2024-11-10 22:04:25,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7247191011235955 [2024-11-10 22:04:25,226 INFO L175 Difference]: Start difference. First operand has 95 places, 82 transitions, 230 flow. Second operand 6 states and 387 transitions. [2024-11-10 22:04:25,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 205 transitions, 944 flow [2024-11-10 22:04:25,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 205 transitions, 888 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-10 22:04:25,230 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 224 flow [2024-11-10 22:04:25,231 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2024-11-10 22:04:25,232 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 12 predicate places. [2024-11-10 22:04:25,232 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 224 flow [2024-11-10 22:04:25,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.166666666666664) internal successors, (241), 6 states have internal predecessors, (241), 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) [2024-11-10 22:04:25,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:25,232 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] [2024-11-10 22:04:25,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:04:25,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:04:25,436 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:25,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:25,438 INFO L85 PathProgramCache]: Analyzing trace with hash -397314636, now seen corresponding path program 1 times [2024-11-10 22:04:25,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:25,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188263072] [2024-11-10 22:04:25,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:25,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:25,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:25,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:25,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188263072] [2024-11-10 22:04:25,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188263072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:25,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:25,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:04:25,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350946274] [2024-11-10 22:04:25,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:25,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:04:25,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:25,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:04:25,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:04:25,642 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 89 [2024-11-10 22:04:25,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-11-10 22:04:25,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:25,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 89 [2024-11-10 22:04:25,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:26,912 INFO L124 PetriNetUnfolderBase]: 2886/6214 cut-off events. [2024-11-10 22:04:26,912 INFO L125 PetriNetUnfolderBase]: For 2775/2833 co-relation queries the response was YES. [2024-11-10 22:04:26,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13139 conditions, 6214 events. 2886/6214 cut-off events. For 2775/2833 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 45223 event pairs, 1574 based on Foata normal form. 144/5906 useless extension candidates. Maximal degree in co-relation 13128. Up to 3699 conditions per place. [2024-11-10 22:04:26,943 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 94 selfloop transitions, 3 changer transitions 0/126 dead transitions. [2024-11-10 22:04:26,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 126 transitions, 574 flow [2024-11-10 22:04:26,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:04:26,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:04:26,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 237 transitions. [2024-11-10 22:04:26,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6657303370786517 [2024-11-10 22:04:26,949 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 224 flow. Second operand 4 states and 237 transitions. [2024-11-10 22:04:26,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 126 transitions, 574 flow [2024-11-10 22:04:26,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 126 transitions, 559 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:04:26,954 INFO L231 Difference]: Finished difference. Result has 95 places, 83 transitions, 247 flow [2024-11-10 22:04:26,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=247, PETRI_PLACES=95, PETRI_TRANSITIONS=83} [2024-11-10 22:04:26,956 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 14 predicate places. [2024-11-10 22:04:26,956 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 83 transitions, 247 flow [2024-11-10 22:04:26,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-11-10 22:04:26,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:26,956 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:04:26,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:04:26,957 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:26,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:26,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1703954650, now seen corresponding path program 1 times [2024-11-10 22:04:26,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:26,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353195459] [2024-11-10 22:04:26,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:26,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:04:27,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:27,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353195459] [2024-11-10 22:04:27,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353195459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:27,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:27,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:04:27,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144922906] [2024-11-10 22:04:27,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:27,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:04:27,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:27,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:04:27,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:04:27,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-10 22:04:27,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 83 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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) [2024-11-10 22:04:27,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:27,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-10 22:04:27,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:28,347 INFO L124 PetriNetUnfolderBase]: 2726/5927 cut-off events. [2024-11-10 22:04:28,348 INFO L125 PetriNetUnfolderBase]: For 2094/2264 co-relation queries the response was YES. [2024-11-10 22:04:28,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12832 conditions, 5927 events. 2726/5927 cut-off events. For 2094/2264 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 42817 event pairs, 620 based on Foata normal form. 107/5660 useless extension candidates. Maximal degree in co-relation 12819. Up to 2521 conditions per place. [2024-11-10 22:04:28,373 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 102 selfloop transitions, 6 changer transitions 6/145 dead transitions. [2024-11-10 22:04:28,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 145 transitions, 663 flow [2024-11-10 22:04:28,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:04:28,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:04:28,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 246 transitions. [2024-11-10 22:04:28,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6910112359550562 [2024-11-10 22:04:28,374 INFO L175 Difference]: Start difference. First operand has 95 places, 83 transitions, 247 flow. Second operand 4 states and 246 transitions. [2024-11-10 22:04:28,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 145 transitions, 663 flow [2024-11-10 22:04:28,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 145 transitions, 653 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 22:04:28,384 INFO L231 Difference]: Finished difference. Result has 96 places, 81 transitions, 253 flow [2024-11-10 22:04:28,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=253, PETRI_PLACES=96, PETRI_TRANSITIONS=81} [2024-11-10 22:04:28,384 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 15 predicate places. [2024-11-10 22:04:28,384 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 81 transitions, 253 flow [2024-11-10 22:04:28,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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) [2024-11-10 22:04:28,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:28,385 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] [2024-11-10 22:04:28,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 22:04:28,385 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:28,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:28,385 INFO L85 PathProgramCache]: Analyzing trace with hash 569107337, now seen corresponding path program 1 times [2024-11-10 22:04:28,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:28,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961086650] [2024-11-10 22:04:28,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:28,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:30,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:30,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:30,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961086650] [2024-11-10 22:04:30,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961086650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:30,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:30,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 22:04:30,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130911079] [2024-11-10 22:04:30,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:30,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:04:30,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:30,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:04:30,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:04:30,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-10 22:04:30,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 81 transitions, 253 flow. Second operand has 8 states, 8 states have (on average 39.25) internal successors, (314), 8 states have internal predecessors, (314), 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) [2024-11-10 22:04:30,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:30,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-10 22:04:30,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:31,677 INFO L124 PetriNetUnfolderBase]: 2675/5857 cut-off events. [2024-11-10 22:04:31,677 INFO L125 PetriNetUnfolderBase]: For 3631/3697 co-relation queries the response was YES. [2024-11-10 22:04:31,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13217 conditions, 5857 events. 2675/5857 cut-off events. For 3631/3697 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 42849 event pairs, 484 based on Foata normal form. 44/5567 useless extension candidates. Maximal degree in co-relation 13205. Up to 2649 conditions per place. [2024-11-10 22:04:31,710 INFO L140 encePairwiseOnDemand]: 74/89 looper letters, 129 selfloop transitions, 13 changer transitions 1/175 dead transitions. [2024-11-10 22:04:31,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 175 transitions, 938 flow [2024-11-10 22:04:31,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:04:31,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:04:31,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 457 transitions. [2024-11-10 22:04:31,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5705368289637952 [2024-11-10 22:04:31,714 INFO L175 Difference]: Start difference. First operand has 96 places, 81 transitions, 253 flow. Second operand 9 states and 457 transitions. [2024-11-10 22:04:31,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 175 transitions, 938 flow [2024-11-10 22:04:31,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 175 transitions, 881 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:04:31,721 INFO L231 Difference]: Finished difference. Result has 104 places, 87 transitions, 313 flow [2024-11-10 22:04:31,721 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=313, PETRI_PLACES=104, PETRI_TRANSITIONS=87} [2024-11-10 22:04:31,721 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 23 predicate places. [2024-11-10 22:04:31,722 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 87 transitions, 313 flow [2024-11-10 22:04:31,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 39.25) internal successors, (314), 8 states have internal predecessors, (314), 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) [2024-11-10 22:04:31,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:31,722 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, 1] [2024-11-10 22:04:31,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 22:04:31,722 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:31,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:31,723 INFO L85 PathProgramCache]: Analyzing trace with hash 792967089, now seen corresponding path program 1 times [2024-11-10 22:04:31,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:31,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550735431] [2024-11-10 22:04:31,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:31,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:32,009 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:32,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:32,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550735431] [2024-11-10 22:04:32,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550735431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:04:32,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350729056] [2024-11-10 22:04:32,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:32,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:04:32,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:04:32,012 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) [2024-11-10 22:04:32,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:04:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:32,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 3422 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:04:32,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:04:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:32,430 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:04:32,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350729056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:32,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:04:32,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-10 22:04:32,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478039091] [2024-11-10 22:04:32,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:32,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:04:32,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:32,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:04:32,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:04:32,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 89 [2024-11-10 22:04:32,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 87 transitions, 313 flow. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 5 states have internal predecessors, (197), 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) [2024-11-10 22:04:32,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:32,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 89 [2024-11-10 22:04:32,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:33,532 INFO L124 PetriNetUnfolderBase]: 3093/6296 cut-off events. [2024-11-10 22:04:33,532 INFO L125 PetriNetUnfolderBase]: For 3506/3540 co-relation queries the response was YES. [2024-11-10 22:04:33,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15348 conditions, 6296 events. 3093/6296 cut-off events. For 3506/3540 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 44075 event pairs, 680 based on Foata normal form. 150/6172 useless extension candidates. Maximal degree in co-relation 15333. Up to 3349 conditions per place. [2024-11-10 22:04:33,561 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 80 selfloop transitions, 5 changer transitions 0/113 dead transitions. [2024-11-10 22:04:33,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 113 transitions, 581 flow [2024-11-10 22:04:33,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:04:33,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:04:33,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions. [2024-11-10 22:04:33,564 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5898876404494382 [2024-11-10 22:04:33,564 INFO L175 Difference]: Start difference. First operand has 104 places, 87 transitions, 313 flow. Second operand 4 states and 210 transitions. [2024-11-10 22:04:33,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 113 transitions, 581 flow [2024-11-10 22:04:33,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 113 transitions, 569 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 22:04:33,574 INFO L231 Difference]: Finished difference. Result has 100 places, 85 transitions, 303 flow [2024-11-10 22:04:33,574 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=97, 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=303, PETRI_PLACES=100, PETRI_TRANSITIONS=85} [2024-11-10 22:04:33,575 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 19 predicate places. [2024-11-10 22:04:33,575 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 85 transitions, 303 flow [2024-11-10 22:04:33,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 5 states have internal predecessors, (197), 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) [2024-11-10 22:04:33,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:33,575 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:04:33,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 22:04:33,776 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,SelfDestructingSolverStorable12 [2024-11-10 22:04:33,777 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:33,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:33,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1187820151, now seen corresponding path program 1 times [2024-11-10 22:04:33,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:33,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888436415] [2024-11-10 22:04:33,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:33,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:33,931 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:04:33,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:33,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888436415] [2024-11-10 22:04:33,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888436415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:33,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:33,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:04:33,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907920794] [2024-11-10 22:04:33,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:33,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:04:33,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:33,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:04:33,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:04:33,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 89 [2024-11-10 22:04:33,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 85 transitions, 303 flow. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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) [2024-11-10 22:04:33,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:33,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 89 [2024-11-10 22:04:33,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:34,918 INFO L124 PetriNetUnfolderBase]: 2754/5859 cut-off events. [2024-11-10 22:04:34,918 INFO L125 PetriNetUnfolderBase]: For 3781/3801 co-relation queries the response was YES. [2024-11-10 22:04:34,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14238 conditions, 5859 events. 2754/5859 cut-off events. For 3781/3801 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 41584 event pairs, 727 based on Foata normal form. 150/5837 useless extension candidates. Maximal degree in co-relation 14222. Up to 2840 conditions per place. [2024-11-10 22:04:34,945 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 84 selfloop transitions, 6 changer transitions 0/118 dead transitions. [2024-11-10 22:04:34,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 118 transitions, 603 flow [2024-11-10 22:04:34,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:04:34,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:04:34,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 215 transitions. [2024-11-10 22:04:34,947 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6039325842696629 [2024-11-10 22:04:34,947 INFO L175 Difference]: Start difference. First operand has 100 places, 85 transitions, 303 flow. Second operand 4 states and 215 transitions. [2024-11-10 22:04:34,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 118 transitions, 603 flow [2024-11-10 22:04:34,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 118 transitions, 593 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:04:34,956 INFO L231 Difference]: Finished difference. Result has 99 places, 84 transitions, 305 flow [2024-11-10 22:04:34,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=95, 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=305, PETRI_PLACES=99, PETRI_TRANSITIONS=84} [2024-11-10 22:04:34,957 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 18 predicate places. [2024-11-10 22:04:34,957 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 84 transitions, 305 flow [2024-11-10 22:04:34,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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) [2024-11-10 22:04:34,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:34,957 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] [2024-11-10 22:04:34,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 22:04:34,957 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:34,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:34,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1252899300, now seen corresponding path program 1 times [2024-11-10 22:04:34,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:34,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061619060] [2024-11-10 22:04:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:34,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:35,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:35,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:35,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061619060] [2024-11-10 22:04:35,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061619060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:35,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:35,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:04:35,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306724996] [2024-11-10 22:04:35,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:35,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:04:35,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:35,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:04:35,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:04:35,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 89 [2024-11-10 22:04:35,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 84 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 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) [2024-11-10 22:04:35,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:35,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 89 [2024-11-10 22:04:35,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:35,883 INFO L124 PetriNetUnfolderBase]: 1625/3896 cut-off events. [2024-11-10 22:04:35,884 INFO L125 PetriNetUnfolderBase]: For 3534/3534 co-relation queries the response was YES. [2024-11-10 22:04:35,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9794 conditions, 3896 events. 1625/3896 cut-off events. For 3534/3534 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 26770 event pairs, 446 based on Foata normal form. 166/3975 useless extension candidates. Maximal degree in co-relation 9778. Up to 1877 conditions per place. [2024-11-10 22:04:35,897 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 61 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2024-11-10 22:04:35,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 98 transitions, 506 flow [2024-11-10 22:04:35,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:04:35,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:04:35,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2024-11-10 22:04:35,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-10 22:04:35,898 INFO L175 Difference]: Start difference. First operand has 99 places, 84 transitions, 305 flow. Second operand 3 states and 178 transitions. [2024-11-10 22:04:35,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 98 transitions, 506 flow [2024-11-10 22:04:35,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 98 transitions, 487 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 22:04:35,904 INFO L231 Difference]: Finished difference. Result has 99 places, 82 transitions, 293 flow [2024-11-10 22:04:35,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=293, PETRI_PLACES=99, PETRI_TRANSITIONS=82} [2024-11-10 22:04:35,905 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 18 predicate places. [2024-11-10 22:04:35,905 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 82 transitions, 293 flow [2024-11-10 22:04:35,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 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) [2024-11-10 22:04:35,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:35,906 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] [2024-11-10 22:04:35,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 22:04:35,907 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:35,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:35,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1202569779, now seen corresponding path program 1 times [2024-11-10 22:04:35,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:35,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258829362] [2024-11-10 22:04:35,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:35,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:04:37,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:04:37,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:04:37,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258829362] [2024-11-10 22:04:37,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258829362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:04:37,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:04:37,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:04:37,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873107850] [2024-11-10 22:04:37,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:04:37,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 22:04:37,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:04:37,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 22:04:37,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:04:37,386 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 89 [2024-11-10 22:04:37,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 82 transitions, 293 flow. Second operand has 8 states, 8 states have (on average 40.125) internal successors, (321), 8 states have internal predecessors, (321), 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) [2024-11-10 22:04:37,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:04:37,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 89 [2024-11-10 22:04:37,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:04:39,288 INFO L124 PetriNetUnfolderBase]: 1637/3831 cut-off events. [2024-11-10 22:04:39,288 INFO L125 PetriNetUnfolderBase]: For 2969/2971 co-relation queries the response was YES. [2024-11-10 22:04:39,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9809 conditions, 3831 events. 1637/3831 cut-off events. For 2969/2971 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 25616 event pairs, 258 based on Foata normal form. 36/3755 useless extension candidates. Maximal degree in co-relation 9792. Up to 1563 conditions per place. [2024-11-10 22:04:39,302 INFO L140 encePairwiseOnDemand]: 78/89 looper letters, 114 selfloop transitions, 11 changer transitions 1/155 dead transitions. [2024-11-10 22:04:39,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 155 transitions, 863 flow [2024-11-10 22:04:39,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:04:39,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:04:39,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 439 transitions. [2024-11-10 22:04:39,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5480649188514357 [2024-11-10 22:04:39,304 INFO L175 Difference]: Start difference. First operand has 99 places, 82 transitions, 293 flow. Second operand 9 states and 439 transitions. [2024-11-10 22:04:39,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 155 transitions, 863 flow [2024-11-10 22:04:39,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 155 transitions, 847 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:04:39,310 INFO L231 Difference]: Finished difference. Result has 105 places, 81 transitions, 301 flow [2024-11-10 22:04:39,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=301, PETRI_PLACES=105, PETRI_TRANSITIONS=81} [2024-11-10 22:04:39,310 INFO L277 CegarLoopForPetriNet]: 81 programPoint places, 24 predicate places. [2024-11-10 22:04:39,310 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 81 transitions, 301 flow [2024-11-10 22:04:39,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 40.125) internal successors, (321), 8 states have internal predecessors, (321), 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) [2024-11-10 22:04:39,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:04:39,311 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] [2024-11-10 22:04:39,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 22:04:39,311 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 36 more)] === [2024-11-10 22:04:39,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:04:39,311 INFO L85 PathProgramCache]: Analyzing trace with hash -977255210, now seen corresponding path program 1 times [2024-11-10 22:04:39,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:04:39,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706852601] [2024-11-10 22:04:39,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:04:39,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:04:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat