./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 23:54:04,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 23:54:04,272 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 23:54:04,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 23:54:04,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 23:54:04,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 23:54:04,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 23:54:04,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 23:54:04,300 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 23:54:04,300 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 23:54:04,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 23:54:04,301 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 23:54:04,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 23:54:04,302 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 23:54:04,302 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 23:54:04,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 23:54:04,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 23:54:04,305 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 23:54:04,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 23:54:04,305 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 23:54:04,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 23:54:04,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 23:54:04,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 23:54:04,311 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 23:54:04,311 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 23:54:04,311 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 23:54:04,311 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 23:54:04,312 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 23:54:04,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 23:54:04,312 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 23:54:04,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 23:54:04,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 23:54:04,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 23:54:04,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 23:54:04,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:54:04,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 23:54:04,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 23:54:04,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 23:54:04,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 23:54:04,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 23:54:04,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 23:54:04,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 23:54:04,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 23:54:04,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 23:54:04,316 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2024-10-11 23:54:04,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 23:54:04,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 23:54:04,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 23:54:04,590 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 23:54:04,593 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 23:54:04,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-10-11 23:54:06,071 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 23:54:06,373 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 23:54:06,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-10-11 23:54:06,407 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6cf98b04c/c4e9e2196fa84d4d9473487b5a9d884f/FLAG70e1aac26 [2024-10-11 23:54:06,642 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6cf98b04c/c4e9e2196fa84d4d9473487b5a9d884f [2024-10-11 23:54:06,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 23:54:06,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 23:54:06,649 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 23:54:06,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 23:54:06,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 23:54:06,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:54:06" (1/1) ... [2024-10-11 23:54:06,658 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c03eb40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:06, skipping insertion in model container [2024-10-11 23:54:06,658 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:54:06" (1/1) ... [2024-10-11 23:54:06,718 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 23:54:07,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:54:07,208 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 23:54:07,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:54:07,344 INFO L204 MainTranslator]: Completed translation [2024-10-11 23:54:07,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07 WrapperNode [2024-10-11 23:54:07,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 23:54:07,346 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 23:54:07,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 23:54:07,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 23:54:07,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07" (1/1) ... [2024-10-11 23:54:07,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07" (1/1) ... [2024-10-11 23:54:07,402 INFO L138 Inliner]: procedures = 246, calls = 40, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 145 [2024-10-11 23:54:07,403 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 23:54:07,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 23:54:07,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 23:54:07,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 23:54:07,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07" (1/1) ... [2024-10-11 23:54:07,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07" (1/1) ... [2024-10-11 23:54:07,426 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07" (1/1) ... [2024-10-11 23:54:07,450 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 13, 2]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 6, 2]. [2024-10-11 23:54:07,451 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07" (1/1) ... [2024-10-11 23:54:07,451 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07" (1/1) ... [2024-10-11 23:54:07,466 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07" (1/1) ... [2024-10-11 23:54:07,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07" (1/1) ... [2024-10-11 23:54:07,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07" (1/1) ... [2024-10-11 23:54:07,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07" (1/1) ... [2024-10-11 23:54:07,483 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 23:54:07,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 23:54:07,487 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 23:54:07,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 23:54:07,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07" (1/1) ... [2024-10-11 23:54:07,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:54:07,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:54:07,539 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 23:54:07,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 23:54:07,599 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-10-11 23:54:07,599 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-10-11 23:54:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 23:54:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 23:54:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 23:54:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 23:54:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 23:54:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 23:54:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 23:54:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 23:54:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 23:54:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 23:54:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 23:54:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 23:54:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 23:54:07,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 23:54:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 23:54:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 23:54:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 23:54:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 23:54:07,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 23:54:07,606 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 23:54:07,855 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 23:54:07,857 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 23:54:08,225 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 23:54:08,226 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 23:54:08,441 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 23:54:08,442 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 23:54:08,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:54:08 BoogieIcfgContainer [2024-10-11 23:54:08,443 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 23:54:08,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 23:54:08,445 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 23:54:08,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 23:54:08,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:54:06" (1/3) ... [2024-10-11 23:54:08,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29efe919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:54:08, skipping insertion in model container [2024-10-11 23:54:08,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:54:07" (2/3) ... [2024-10-11 23:54:08,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29efe919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:54:08, skipping insertion in model container [2024-10-11 23:54:08,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:54:08" (3/3) ... [2024-10-11 23:54:08,453 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2024-10-11 23:54:08,470 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 23:54:08,470 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 23:54:08,470 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 23:54:08,516 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 23:54:08,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 38 transitions, 90 flow [2024-10-11 23:54:08,583 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-10-11 23:54:08,583 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 23:54:08,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 2/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 23. Up to 3 conditions per place. [2024-10-11 23:54:08,585 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 38 transitions, 90 flow [2024-10-11 23:54:08,588 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 32 transitions, 73 flow [2024-10-11 23:54:08,596 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:54:08,603 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;@4fc0045, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:54:08,604 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-11 23:54:08,610 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 23:54:08,611 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-10-11 23:54:08,611 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:54:08,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:08,612 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:08,612 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:08,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:08,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1371065065, now seen corresponding path program 1 times [2024-10-11 23:54:08,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:08,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923579108] [2024-10-11 23:54:08,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:08,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:09,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:09,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:09,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923579108] [2024-10-11 23:54:09,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923579108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:09,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:09,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 23:54:09,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289741089] [2024-10-11 23:54:09,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:09,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:54:09,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:09,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:54:09,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 23:54:09,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-10-11 23:54:09,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 73 flow. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:09,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:09,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-10-11 23:54:09,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:10,117 INFO L124 PetriNetUnfolderBase]: 621/1208 cut-off events. [2024-10-11 23:54:10,118 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-10-11 23:54:10,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2271 conditions, 1208 events. 621/1208 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6838 event pairs, 193 based on Foata normal form. 44/1176 useless extension candidates. Maximal degree in co-relation 2198. Up to 862 conditions per place. [2024-10-11 23:54:10,135 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 58 selfloop transitions, 18 changer transitions 3/84 dead transitions. [2024-10-11 23:54:10,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 84 transitions, 344 flow [2024-10-11 23:54:10,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 23:54:10,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 23:54:10,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 155 transitions. [2024-10-11 23:54:10,153 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45321637426900585 [2024-10-11 23:54:10,155 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 73 flow. Second operand 9 states and 155 transitions. [2024-10-11 23:54:10,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 84 transitions, 344 flow [2024-10-11 23:54:10,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 84 transitions, 336 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 23:54:10,162 INFO L231 Difference]: Finished difference. Result has 48 places, 50 transitions, 182 flow [2024-10-11 23:54:10,164 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=182, PETRI_PLACES=48, PETRI_TRANSITIONS=50} [2024-10-11 23:54:10,169 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2024-10-11 23:54:10,170 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 50 transitions, 182 flow [2024-10-11 23:54:10,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:10,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:10,171 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:10,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 23:54:10,171 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:10,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:10,172 INFO L85 PathProgramCache]: Analyzing trace with hash 625871757, now seen corresponding path program 1 times [2024-10-11 23:54:10,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:10,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115688874] [2024-10-11 23:54:10,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:10,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:10,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:10,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:10,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115688874] [2024-10-11 23:54:10,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115688874] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:10,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:10,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 23:54:10,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566844389] [2024-10-11 23:54:10,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:10,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:54:10,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:10,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:54:10,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 23:54:10,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-10-11 23:54:10,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 50 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:10,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:10,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-10-11 23:54:10,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:10,915 INFO L124 PetriNetUnfolderBase]: 672/1238 cut-off events. [2024-10-11 23:54:10,916 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2024-10-11 23:54:10,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2972 conditions, 1238 events. 672/1238 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6664 event pairs, 319 based on Foata normal form. 44/1248 useless extension candidates. Maximal degree in co-relation 2499. Up to 951 conditions per place. [2024-10-11 23:54:10,926 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 60 selfloop transitions, 24 changer transitions 5/94 dead transitions. [2024-10-11 23:54:10,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 94 transitions, 496 flow [2024-10-11 23:54:10,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 23:54:10,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 23:54:10,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 153 transitions. [2024-10-11 23:54:10,929 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2024-10-11 23:54:10,929 INFO L175 Difference]: Start difference. First operand has 48 places, 50 transitions, 182 flow. Second operand 9 states and 153 transitions. [2024-10-11 23:54:10,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 94 transitions, 496 flow [2024-10-11 23:54:10,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 94 transitions, 494 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:54:10,935 INFO L231 Difference]: Finished difference. Result has 57 places, 62 transitions, 299 flow [2024-10-11 23:54:10,936 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=299, PETRI_PLACES=57, PETRI_TRANSITIONS=62} [2024-10-11 23:54:10,936 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2024-10-11 23:54:10,936 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 62 transitions, 299 flow [2024-10-11 23:54:10,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:10,937 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:10,937 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:10,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 23:54:10,937 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:10,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:10,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1799878917, now seen corresponding path program 1 times [2024-10-11 23:54:10,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:10,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817376295] [2024-10-11 23:54:10,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:10,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:11,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:11,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:11,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817376295] [2024-10-11 23:54:11,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817376295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:11,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:11,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:11,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642520052] [2024-10-11 23:54:11,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:11,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:11,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:11,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:11,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:11,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-10-11 23:54:11,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 62 transitions, 299 flow. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:11,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:11,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-10-11 23:54:11,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:12,101 INFO L124 PetriNetUnfolderBase]: 728/1329 cut-off events. [2024-10-11 23:54:12,102 INFO L125 PetriNetUnfolderBase]: For 1096/1096 co-relation queries the response was YES. [2024-10-11 23:54:12,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3679 conditions, 1329 events. 728/1329 cut-off events. For 1096/1096 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 7237 event pairs, 234 based on Foata normal form. 52/1381 useless extension candidates. Maximal degree in co-relation 3575. Up to 1039 conditions per place. [2024-10-11 23:54:12,111 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 60 selfloop transitions, 26 changer transitions 18/109 dead transitions. [2024-10-11 23:54:12,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 109 transitions, 657 flow [2024-10-11 23:54:12,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 23:54:12,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-11 23:54:12,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 183 transitions. [2024-10-11 23:54:12,115 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43779904306220097 [2024-10-11 23:54:12,115 INFO L175 Difference]: Start difference. First operand has 57 places, 62 transitions, 299 flow. Second operand 11 states and 183 transitions. [2024-10-11 23:54:12,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 109 transitions, 657 flow [2024-10-11 23:54:12,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 109 transitions, 655 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:54:12,126 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 390 flow [2024-10-11 23:54:12,126 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=390, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2024-10-11 23:54:12,127 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 30 predicate places. [2024-10-11 23:54:12,128 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 390 flow [2024-10-11 23:54:12,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:12,128 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:12,128 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:12,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 23:54:12,128 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:12,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:12,129 INFO L85 PathProgramCache]: Analyzing trace with hash 899651241, now seen corresponding path program 2 times [2024-10-11 23:54:12,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:12,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950977851] [2024-10-11 23:54:12,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:12,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:12,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:12,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:12,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950977851] [2024-10-11 23:54:12,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950977851] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:12,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:12,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:12,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323859591] [2024-10-11 23:54:12,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:12,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:12,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:12,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:12,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:12,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-10-11 23:54:12,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 390 flow. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:12,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:12,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-10-11 23:54:12,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:13,275 INFO L124 PetriNetUnfolderBase]: 796/1474 cut-off events. [2024-10-11 23:54:13,275 INFO L125 PetriNetUnfolderBase]: For 2714/2714 co-relation queries the response was YES. [2024-10-11 23:54:13,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4598 conditions, 1474 events. 796/1474 cut-off events. For 2714/2714 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 8270 event pairs, 309 based on Foata normal form. 52/1526 useless extension candidates. Maximal degree in co-relation 3666. Up to 1023 conditions per place. [2024-10-11 23:54:13,287 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 75 selfloop transitions, 39 changer transitions 12/131 dead transitions. [2024-10-11 23:54:13,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 131 transitions, 932 flow [2024-10-11 23:54:13,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 23:54:13,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 23:54:13,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 212 transitions. [2024-10-11 23:54:13,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4291497975708502 [2024-10-11 23:54:13,290 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 390 flow. Second operand 13 states and 212 transitions. [2024-10-11 23:54:13,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 131 transitions, 932 flow [2024-10-11 23:54:13,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 131 transitions, 848 flow, removed 6 selfloop flow, removed 8 redundant places. [2024-10-11 23:54:13,306 INFO L231 Difference]: Finished difference. Result has 77 places, 81 transitions, 588 flow [2024-10-11 23:54:13,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=588, PETRI_PLACES=77, PETRI_TRANSITIONS=81} [2024-10-11 23:54:13,308 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 38 predicate places. [2024-10-11 23:54:13,308 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 81 transitions, 588 flow [2024-10-11 23:54:13,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:13,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:13,309 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:13,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 23:54:13,309 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:13,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:13,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1789759587, now seen corresponding path program 3 times [2024-10-11 23:54:13,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:13,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904662244] [2024-10-11 23:54:13,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:13,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:13,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:13,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:13,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904662244] [2024-10-11 23:54:13,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904662244] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:13,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:13,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:13,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488929015] [2024-10-11 23:54:13,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:13,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:13,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:13,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:13,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:13,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-10-11 23:54:13,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 81 transitions, 588 flow. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:13,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:13,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-10-11 23:54:13,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:14,428 INFO L124 PetriNetUnfolderBase]: 780/1420 cut-off events. [2024-10-11 23:54:14,428 INFO L125 PetriNetUnfolderBase]: For 3745/3745 co-relation queries the response was YES. [2024-10-11 23:54:14,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4907 conditions, 1420 events. 780/1420 cut-off events. For 3745/3745 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7687 event pairs, 224 based on Foata normal form. 52/1472 useless extension candidates. Maximal degree in co-relation 4785. Up to 1011 conditions per place. [2024-10-11 23:54:14,438 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 78 selfloop transitions, 42 changer transitions 17/142 dead transitions. [2024-10-11 23:54:14,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 142 transitions, 1122 flow [2024-10-11 23:54:14,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 23:54:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 23:54:14,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 205 transitions. [2024-10-11 23:54:14,440 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44956140350877194 [2024-10-11 23:54:14,440 INFO L175 Difference]: Start difference. First operand has 77 places, 81 transitions, 588 flow. Second operand 12 states and 205 transitions. [2024-10-11 23:54:14,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 142 transitions, 1122 flow [2024-10-11 23:54:14,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 142 transitions, 1037 flow, removed 14 selfloop flow, removed 7 redundant places. [2024-10-11 23:54:14,465 INFO L231 Difference]: Finished difference. Result has 85 places, 88 transitions, 717 flow [2024-10-11 23:54:14,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=717, PETRI_PLACES=85, PETRI_TRANSITIONS=88} [2024-10-11 23:54:14,468 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 46 predicate places. [2024-10-11 23:54:14,471 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 88 transitions, 717 flow [2024-10-11 23:54:14,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:14,471 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:14,471 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:14,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 23:54:14,472 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:14,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:14,472 INFO L85 PathProgramCache]: Analyzing trace with hash 546323968, now seen corresponding path program 1 times [2024-10-11 23:54:14,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:14,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645140577] [2024-10-11 23:54:14,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:14,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:14,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:14,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:14,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645140577] [2024-10-11 23:54:14,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645140577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:14,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:14,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:14,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061693380] [2024-10-11 23:54:14,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:14,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:14,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:14,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:14,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:14,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-10-11 23:54:14,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 88 transitions, 717 flow. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:14,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:14,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-10-11 23:54:14,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:15,576 INFO L124 PetriNetUnfolderBase]: 759/1422 cut-off events. [2024-10-11 23:54:15,576 INFO L125 PetriNetUnfolderBase]: For 4142/4169 co-relation queries the response was YES. [2024-10-11 23:54:15,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5138 conditions, 1422 events. 759/1422 cut-off events. For 4142/4169 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 8006 event pairs, 247 based on Foata normal form. 48/1470 useless extension candidates. Maximal degree in co-relation 5005. Up to 1000 conditions per place. [2024-10-11 23:54:15,588 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 75 selfloop transitions, 42 changer transitions 12/134 dead transitions. [2024-10-11 23:54:15,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 134 transitions, 1125 flow [2024-10-11 23:54:15,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 23:54:15,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 23:54:15,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 212 transitions. [2024-10-11 23:54:15,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4291497975708502 [2024-10-11 23:54:15,590 INFO L175 Difference]: Start difference. First operand has 85 places, 88 transitions, 717 flow. Second operand 13 states and 212 transitions. [2024-10-11 23:54:15,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 134 transitions, 1125 flow [2024-10-11 23:54:15,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 134 transitions, 1076 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-10-11 23:54:15,611 INFO L231 Difference]: Finished difference. Result has 94 places, 85 transitions, 750 flow [2024-10-11 23:54:15,611 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=750, PETRI_PLACES=94, PETRI_TRANSITIONS=85} [2024-10-11 23:54:15,613 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 55 predicate places. [2024-10-11 23:54:15,613 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 85 transitions, 750 flow [2024-10-11 23:54:15,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:15,613 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:15,613 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:15,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 23:54:15,614 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:15,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:15,614 INFO L85 PathProgramCache]: Analyzing trace with hash 899642880, now seen corresponding path program 2 times [2024-10-11 23:54:15,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:15,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130301912] [2024-10-11 23:54:15,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:15,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:16,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:16,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:16,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130301912] [2024-10-11 23:54:16,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130301912] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:16,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:16,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:16,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99864323] [2024-10-11 23:54:16,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:16,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:16,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:16,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:16,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:16,053 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-10-11 23:54:16,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 85 transitions, 750 flow. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:16,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:16,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-10-11 23:54:16,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:16,636 INFO L124 PetriNetUnfolderBase]: 768/1446 cut-off events. [2024-10-11 23:54:16,637 INFO L125 PetriNetUnfolderBase]: For 5195/5226 co-relation queries the response was YES. [2024-10-11 23:54:16,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5498 conditions, 1446 events. 768/1446 cut-off events. For 5195/5226 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 8142 event pairs, 301 based on Foata normal form. 48/1494 useless extension candidates. Maximal degree in co-relation 4337. Up to 1019 conditions per place. [2024-10-11 23:54:16,651 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 73 selfloop transitions, 40 changer transitions 13/131 dead transitions. [2024-10-11 23:54:16,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 131 transitions, 1178 flow [2024-10-11 23:54:16,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 23:54:16,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 23:54:16,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 198 transitions. [2024-10-11 23:54:16,653 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4342105263157895 [2024-10-11 23:54:16,653 INFO L175 Difference]: Start difference. First operand has 94 places, 85 transitions, 750 flow. Second operand 12 states and 198 transitions. [2024-10-11 23:54:16,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 131 transitions, 1178 flow [2024-10-11 23:54:16,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 131 transitions, 1044 flow, removed 5 selfloop flow, removed 15 redundant places. [2024-10-11 23:54:16,673 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 720 flow [2024-10-11 23:54:16,674 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=619, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=720, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2024-10-11 23:54:16,674 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 53 predicate places. [2024-10-11 23:54:16,675 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 720 flow [2024-10-11 23:54:16,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:16,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:16,675 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:16,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 23:54:16,675 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:16,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:16,676 INFO L85 PathProgramCache]: Analyzing trace with hash -578233808, now seen corresponding path program 1 times [2024-10-11 23:54:16,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:16,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357225577] [2024-10-11 23:54:16,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:16,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:16,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:16,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:16,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357225577] [2024-10-11 23:54:16,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357225577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:16,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:16,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 23:54:16,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204251636] [2024-10-11 23:54:16,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:16,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:54:16,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:16,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:54:16,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:54:16,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 38 [2024-10-11 23:54:16,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 720 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:16,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:16,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 38 [2024-10-11 23:54:16,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:16,911 INFO L124 PetriNetUnfolderBase]: 365/703 cut-off events. [2024-10-11 23:54:16,912 INFO L125 PetriNetUnfolderBase]: For 1975/2060 co-relation queries the response was YES. [2024-10-11 23:54:16,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2506 conditions, 703 events. 365/703 cut-off events. For 1975/2060 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3358 event pairs, 61 based on Foata normal form. 0/703 useless extension candidates. Maximal degree in co-relation 2446. Up to 346 conditions per place. [2024-10-11 23:54:16,918 INFO L140 encePairwiseOnDemand]: 35/38 looper letters, 99 selfloop transitions, 7 changer transitions 6/118 dead transitions. [2024-10-11 23:54:16,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 118 transitions, 1160 flow [2024-10-11 23:54:16,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:54:16,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:54:16,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-10-11 23:54:16,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5526315789473685 [2024-10-11 23:54:16,920 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 720 flow. Second operand 4 states and 84 transitions. [2024-10-11 23:54:16,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 118 transitions, 1160 flow [2024-10-11 23:54:16,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 118 transitions, 977 flow, removed 25 selfloop flow, removed 15 redundant places. [2024-10-11 23:54:16,929 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 418 flow [2024-10-11 23:54:16,930 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=418, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2024-10-11 23:54:16,930 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 33 predicate places. [2024-10-11 23:54:16,930 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 418 flow [2024-10-11 23:54:16,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:16,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:16,931 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:16,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 23:54:16,932 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:16,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:16,933 INFO L85 PathProgramCache]: Analyzing trace with hash -665345599, now seen corresponding path program 1 times [2024-10-11 23:54:16,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:16,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571641688] [2024-10-11 23:54:16,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:16,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:17,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:17,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571641688] [2024-10-11 23:54:17,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571641688] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:17,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:17,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:17,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186628491] [2024-10-11 23:54:17,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:17,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:17,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:17,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:17,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:17,469 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 38 [2024-10-11 23:54:17,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 418 flow. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:17,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:17,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 38 [2024-10-11 23:54:17,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:17,963 INFO L124 PetriNetUnfolderBase]: 561/996 cut-off events. [2024-10-11 23:54:17,963 INFO L125 PetriNetUnfolderBase]: For 1529/1529 co-relation queries the response was YES. [2024-10-11 23:54:17,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3204 conditions, 996 events. 561/996 cut-off events. For 1529/1529 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4623 event pairs, 84 based on Foata normal form. 14/1010 useless extension candidates. Maximal degree in co-relation 3075. Up to 226 conditions per place. [2024-10-11 23:54:17,972 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 100 selfloop transitions, 28 changer transitions 0/128 dead transitions. [2024-10-11 23:54:17,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 128 transitions, 906 flow [2024-10-11 23:54:17,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 23:54:17,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-11 23:54:17,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 146 transitions. [2024-10-11 23:54:17,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3492822966507177 [2024-10-11 23:54:17,974 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 418 flow. Second operand 11 states and 146 transitions. [2024-10-11 23:54:17,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 128 transitions, 906 flow [2024-10-11 23:54:17,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 128 transitions, 853 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-10-11 23:54:17,982 INFO L231 Difference]: Finished difference. Result has 81 places, 67 transitions, 478 flow [2024-10-11 23:54:17,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=478, PETRI_PLACES=81, PETRI_TRANSITIONS=67} [2024-10-11 23:54:17,983 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 42 predicate places. [2024-10-11 23:54:17,983 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 67 transitions, 478 flow [2024-10-11 23:54:17,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:17,983 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:17,983 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:17,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 23:54:17,984 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:17,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:17,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2120512723, now seen corresponding path program 2 times [2024-10-11 23:54:17,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:17,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96208418] [2024-10-11 23:54:17,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:17,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:18,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:18,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96208418] [2024-10-11 23:54:18,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96208418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:18,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:18,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:18,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766276954] [2024-10-11 23:54:18,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:18,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:18,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:18,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:18,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:18,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 38 [2024-10-11 23:54:18,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 67 transitions, 478 flow. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:18,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:18,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 38 [2024-10-11 23:54:18,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:19,037 INFO L124 PetriNetUnfolderBase]: 643/1232 cut-off events. [2024-10-11 23:54:19,037 INFO L125 PetriNetUnfolderBase]: For 1669/1669 co-relation queries the response was YES. [2024-10-11 23:54:19,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3901 conditions, 1232 events. 643/1232 cut-off events. For 1669/1669 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 6623 event pairs, 152 based on Foata normal form. 14/1242 useless extension candidates. Maximal degree in co-relation 3763. Up to 379 conditions per place. [2024-10-11 23:54:19,049 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 106 selfloop transitions, 21 changer transitions 0/131 dead transitions. [2024-10-11 23:54:19,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 131 transitions, 932 flow [2024-10-11 23:54:19,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 23:54:19,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 23:54:19,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 149 transitions. [2024-10-11 23:54:19,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39210526315789473 [2024-10-11 23:54:19,051 INFO L175 Difference]: Start difference. First operand has 81 places, 67 transitions, 478 flow. Second operand 10 states and 149 transitions. [2024-10-11 23:54:19,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 131 transitions, 932 flow [2024-10-11 23:54:19,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 131 transitions, 884 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-10-11 23:54:19,061 INFO L231 Difference]: Finished difference. Result has 89 places, 72 transitions, 516 flow [2024-10-11 23:54:19,061 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=516, PETRI_PLACES=89, PETRI_TRANSITIONS=72} [2024-10-11 23:54:19,062 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 50 predicate places. [2024-10-11 23:54:19,062 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 72 transitions, 516 flow [2024-10-11 23:54:19,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:19,062 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:19,063 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:19,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 23:54:19,063 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:19,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:19,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1749614773, now seen corresponding path program 3 times [2024-10-11 23:54:19,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:19,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31604078] [2024-10-11 23:54:19,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:19,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:19,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:19,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:19,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31604078] [2024-10-11 23:54:19,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31604078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:19,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:19,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:19,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373969685] [2024-10-11 23:54:19,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:19,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:19,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:19,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:19,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:19,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 38 [2024-10-11 23:54:19,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 72 transitions, 516 flow. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:19,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:19,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 38 [2024-10-11 23:54:19,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:19,893 INFO L124 PetriNetUnfolderBase]: 624/1197 cut-off events. [2024-10-11 23:54:19,893 INFO L125 PetriNetUnfolderBase]: For 2094/2094 co-relation queries the response was YES. [2024-10-11 23:54:19,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3904 conditions, 1197 events. 624/1197 cut-off events. For 2094/2094 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 6423 event pairs, 204 based on Foata normal form. 14/1207 useless extension candidates. Maximal degree in co-relation 3766. Up to 480 conditions per place. [2024-10-11 23:54:19,904 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 95 selfloop transitions, 26 changer transitions 0/125 dead transitions. [2024-10-11 23:54:19,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 125 transitions, 925 flow [2024-10-11 23:54:19,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 23:54:19,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 23:54:19,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 133 transitions. [2024-10-11 23:54:19,906 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3888888888888889 [2024-10-11 23:54:19,906 INFO L175 Difference]: Start difference. First operand has 89 places, 72 transitions, 516 flow. Second operand 9 states and 133 transitions. [2024-10-11 23:54:19,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 125 transitions, 925 flow [2024-10-11 23:54:19,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 125 transitions, 894 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-10-11 23:54:19,924 INFO L231 Difference]: Finished difference. Result has 99 places, 75 transitions, 594 flow [2024-10-11 23:54:19,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=594, PETRI_PLACES=99, PETRI_TRANSITIONS=75} [2024-10-11 23:54:19,924 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 60 predicate places. [2024-10-11 23:54:19,924 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 75 transitions, 594 flow [2024-10-11 23:54:19,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:19,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:19,925 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:19,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 23:54:19,925 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:19,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:19,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1039713035, now seen corresponding path program 4 times [2024-10-11 23:54:19,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:19,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125191817] [2024-10-11 23:54:19,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:19,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:20,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:20,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:20,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125191817] [2024-10-11 23:54:20,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125191817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:20,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:20,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:20,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86942814] [2024-10-11 23:54:20,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:20,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:20,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:20,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:20,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:20,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 38 [2024-10-11 23:54:20,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 75 transitions, 594 flow. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:20,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:20,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 38 [2024-10-11 23:54:20,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:20,902 INFO L124 PetriNetUnfolderBase]: 887/1600 cut-off events. [2024-10-11 23:54:20,902 INFO L125 PetriNetUnfolderBase]: For 3008/3008 co-relation queries the response was YES. [2024-10-11 23:54:20,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5449 conditions, 1600 events. 887/1600 cut-off events. For 3008/3008 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 8549 event pairs, 178 based on Foata normal form. 26/1626 useless extension candidates. Maximal degree in co-relation 5297. Up to 499 conditions per place. [2024-10-11 23:54:20,914 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 123 selfloop transitions, 33 changer transitions 0/156 dead transitions. [2024-10-11 23:54:20,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 156 transitions, 1170 flow [2024-10-11 23:54:20,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 23:54:20,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 23:54:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 171 transitions. [2024-10-11 23:54:20,916 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.375 [2024-10-11 23:54:20,916 INFO L175 Difference]: Start difference. First operand has 99 places, 75 transitions, 594 flow. Second operand 12 states and 171 transitions. [2024-10-11 23:54:20,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 156 transitions, 1170 flow [2024-10-11 23:54:20,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 156 transitions, 1134 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-11 23:54:20,930 INFO L231 Difference]: Finished difference. Result has 110 places, 81 transitions, 694 flow [2024-10-11 23:54:20,930 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=694, PETRI_PLACES=110, PETRI_TRANSITIONS=81} [2024-10-11 23:54:20,931 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 71 predicate places. [2024-10-11 23:54:20,931 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 81 transitions, 694 flow [2024-10-11 23:54:20,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:20,932 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:20,932 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:20,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 23:54:20,932 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:20,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:20,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1276771083, now seen corresponding path program 5 times [2024-10-11 23:54:20,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:20,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634520008] [2024-10-11 23:54:20,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:20,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:21,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:21,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:21,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634520008] [2024-10-11 23:54:21,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634520008] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:21,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:21,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:21,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239039702] [2024-10-11 23:54:21,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:21,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:21,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:21,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:21,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:21,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 38 [2024-10-11 23:54:21,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 81 transitions, 694 flow. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:21,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:21,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 38 [2024-10-11 23:54:21,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:21,793 INFO L124 PetriNetUnfolderBase]: 780/1493 cut-off events. [2024-10-11 23:54:21,793 INFO L125 PetriNetUnfolderBase]: For 3878/3878 co-relation queries the response was YES. [2024-10-11 23:54:21,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5421 conditions, 1493 events. 780/1493 cut-off events. For 3878/3878 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 8469 event pairs, 208 based on Foata normal form. 14/1503 useless extension candidates. Maximal degree in co-relation 5127. Up to 697 conditions per place. [2024-10-11 23:54:21,807 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 104 selfloop transitions, 24 changer transitions 0/135 dead transitions. [2024-10-11 23:54:21,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 135 transitions, 1122 flow [2024-10-11 23:54:21,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 23:54:21,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 23:54:21,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 137 transitions. [2024-10-11 23:54:21,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40058479532163743 [2024-10-11 23:54:21,811 INFO L175 Difference]: Start difference. First operand has 110 places, 81 transitions, 694 flow. Second operand 9 states and 137 transitions. [2024-10-11 23:54:21,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 135 transitions, 1122 flow [2024-10-11 23:54:21,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 135 transitions, 1076 flow, removed 8 selfloop flow, removed 8 redundant places. [2024-10-11 23:54:21,830 INFO L231 Difference]: Finished difference. Result has 112 places, 83 transitions, 753 flow [2024-10-11 23:54:21,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=753, PETRI_PLACES=112, PETRI_TRANSITIONS=83} [2024-10-11 23:54:21,831 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 73 predicate places. [2024-10-11 23:54:21,831 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 83 transitions, 753 flow [2024-10-11 23:54:21,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:21,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:21,832 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:21,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 23:54:21,832 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:21,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:21,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1268182914, now seen corresponding path program 1 times [2024-10-11 23:54:21,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:21,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363975081] [2024-10-11 23:54:21,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:21,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:22,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:22,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363975081] [2024-10-11 23:54:22,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363975081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:22,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:22,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:22,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066595812] [2024-10-11 23:54:22,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:22,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:22,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:22,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:22,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:22,174 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 38 [2024-10-11 23:54:22,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 83 transitions, 753 flow. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:22,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:22,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 38 [2024-10-11 23:54:22,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:22,789 INFO L124 PetriNetUnfolderBase]: 941/1700 cut-off events. [2024-10-11 23:54:22,789 INFO L125 PetriNetUnfolderBase]: For 3982/3982 co-relation queries the response was YES. [2024-10-11 23:54:22,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6335 conditions, 1700 events. 941/1700 cut-off events. For 3982/3982 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 9208 event pairs, 240 based on Foata normal form. 12/1712 useless extension candidates. Maximal degree in co-relation 5896. Up to 878 conditions per place. [2024-10-11 23:54:22,804 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 123 selfloop transitions, 31 changer transitions 0/154 dead transitions. [2024-10-11 23:54:22,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 154 transitions, 1287 flow [2024-10-11 23:54:22,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 23:54:22,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 23:54:22,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 163 transitions. [2024-10-11 23:54:22,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3574561403508772 [2024-10-11 23:54:22,806 INFO L175 Difference]: Start difference. First operand has 112 places, 83 transitions, 753 flow. Second operand 12 states and 163 transitions. [2024-10-11 23:54:22,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 154 transitions, 1287 flow [2024-10-11 23:54:22,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 154 transitions, 1254 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-10-11 23:54:22,826 INFO L231 Difference]: Finished difference. Result has 121 places, 86 transitions, 827 flow [2024-10-11 23:54:22,826 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=827, PETRI_PLACES=121, PETRI_TRANSITIONS=86} [2024-10-11 23:54:22,826 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 82 predicate places. [2024-10-11 23:54:22,826 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 86 transitions, 827 flow [2024-10-11 23:54:22,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:22,827 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:22,827 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:22,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 23:54:22,827 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:22,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:22,827 INFO L85 PathProgramCache]: Analyzing trace with hash -670616540, now seen corresponding path program 2 times [2024-10-11 23:54:22,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:22,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321996798] [2024-10-11 23:54:22,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:22,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:23,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:23,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:23,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321996798] [2024-10-11 23:54:23,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321996798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:23,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:23,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:23,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783127360] [2024-10-11 23:54:23,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:23,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:23,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:23,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:23,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:23,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 38 [2024-10-11 23:54:23,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 86 transitions, 827 flow. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:23,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:23,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 38 [2024-10-11 23:54:23,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:23,690 INFO L124 PetriNetUnfolderBase]: 921/1737 cut-off events. [2024-10-11 23:54:23,690 INFO L125 PetriNetUnfolderBase]: For 4714/4718 co-relation queries the response was YES. [2024-10-11 23:54:23,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6559 conditions, 1737 events. 921/1737 cut-off events. For 4714/4718 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 10104 event pairs, 150 based on Foata normal form. 12/1743 useless extension candidates. Maximal degree in co-relation 6152. Up to 768 conditions per place. [2024-10-11 23:54:23,706 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 105 selfloop transitions, 26 changer transitions 0/137 dead transitions. [2024-10-11 23:54:23,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 137 transitions, 1259 flow [2024-10-11 23:54:23,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 23:54:23,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 23:54:23,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 137 transitions. [2024-10-11 23:54:23,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3605263157894737 [2024-10-11 23:54:23,708 INFO L175 Difference]: Start difference. First operand has 121 places, 86 transitions, 827 flow. Second operand 10 states and 137 transitions. [2024-10-11 23:54:23,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 137 transitions, 1259 flow [2024-10-11 23:54:23,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 137 transitions, 1167 flow, removed 10 selfloop flow, removed 10 redundant places. [2024-10-11 23:54:23,727 INFO L231 Difference]: Finished difference. Result has 123 places, 90 transitions, 834 flow [2024-10-11 23:54:23,727 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=834, PETRI_PLACES=123, PETRI_TRANSITIONS=90} [2024-10-11 23:54:23,728 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 84 predicate places. [2024-10-11 23:54:23,728 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 90 transitions, 834 flow [2024-10-11 23:54:23,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:23,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:23,728 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:23,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 23:54:23,729 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:23,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:23,729 INFO L85 PathProgramCache]: Analyzing trace with hash -817303580, now seen corresponding path program 3 times [2024-10-11 23:54:23,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:23,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685897114] [2024-10-11 23:54:23,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:23,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:24,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:24,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:24,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685897114] [2024-10-11 23:54:24,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685897114] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:24,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:24,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:24,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739522674] [2024-10-11 23:54:24,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:24,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:24,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:24,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:24,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:24,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 38 [2024-10-11 23:54:24,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 90 transitions, 834 flow. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:24,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:24,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 38 [2024-10-11 23:54:24,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:24,588 INFO L124 PetriNetUnfolderBase]: 977/1853 cut-off events. [2024-10-11 23:54:24,588 INFO L125 PetriNetUnfolderBase]: For 4790/4790 co-relation queries the response was YES. [2024-10-11 23:54:24,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6828 conditions, 1853 events. 977/1853 cut-off events. For 4790/4790 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 11015 event pairs, 168 based on Foata normal form. 12/1859 useless extension candidates. Maximal degree in co-relation 6458. Up to 456 conditions per place. [2024-10-11 23:54:24,600 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 94 selfloop transitions, 36 changer transitions 0/136 dead transitions. [2024-10-11 23:54:24,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 136 transitions, 1242 flow [2024-10-11 23:54:24,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 23:54:24,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 23:54:24,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 126 transitions. [2024-10-11 23:54:24,601 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3684210526315789 [2024-10-11 23:54:24,602 INFO L175 Difference]: Start difference. First operand has 123 places, 90 transitions, 834 flow. Second operand 9 states and 126 transitions. [2024-10-11 23:54:24,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 136 transitions, 1242 flow [2024-10-11 23:54:24,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 136 transitions, 1207 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-10-11 23:54:24,618 INFO L231 Difference]: Finished difference. Result has 132 places, 92 transitions, 911 flow [2024-10-11 23:54:24,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=911, PETRI_PLACES=132, PETRI_TRANSITIONS=92} [2024-10-11 23:54:24,619 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 93 predicate places. [2024-10-11 23:54:24,619 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 92 transitions, 911 flow [2024-10-11 23:54:24,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:24,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:24,620 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:24,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 23:54:24,620 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:24,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:24,620 INFO L85 PathProgramCache]: Analyzing trace with hash -814507070, now seen corresponding path program 4 times [2024-10-11 23:54:24,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:24,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908121805] [2024-10-11 23:54:24,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:24,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:24,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:24,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:24,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908121805] [2024-10-11 23:54:24,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908121805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:24,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:24,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 23:54:24,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115943545] [2024-10-11 23:54:24,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:24,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 23:54:24,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:24,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 23:54:24,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:54:24,971 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 38 [2024-10-11 23:54:24,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 92 transitions, 911 flow. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:24,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:24,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 38 [2024-10-11 23:54:24,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:25,515 INFO L124 PetriNetUnfolderBase]: 960/1824 cut-off events. [2024-10-11 23:54:25,515 INFO L125 PetriNetUnfolderBase]: For 5218/5218 co-relation queries the response was YES. [2024-10-11 23:54:25,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7036 conditions, 1824 events. 960/1824 cut-off events. For 5218/5218 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 10834 event pairs, 188 based on Foata normal form. 12/1830 useless extension candidates. Maximal degree in co-relation 6766. Up to 579 conditions per place. [2024-10-11 23:54:25,530 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 93 selfloop transitions, 36 changer transitions 0/135 dead transitions. [2024-10-11 23:54:25,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 135 transitions, 1283 flow [2024-10-11 23:54:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 23:54:25,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 23:54:25,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 125 transitions. [2024-10-11 23:54:25,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3654970760233918 [2024-10-11 23:54:25,532 INFO L175 Difference]: Start difference. First operand has 132 places, 92 transitions, 911 flow. Second operand 9 states and 125 transitions. [2024-10-11 23:54:25,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 135 transitions, 1283 flow [2024-10-11 23:54:25,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 135 transitions, 1191 flow, removed 6 selfloop flow, removed 10 redundant places. [2024-10-11 23:54:25,552 INFO L231 Difference]: Finished difference. Result has 129 places, 91 transitions, 879 flow [2024-10-11 23:54:25,552 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=879, PETRI_PLACES=129, PETRI_TRANSITIONS=91} [2024-10-11 23:54:25,552 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 90 predicate places. [2024-10-11 23:54:25,553 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 91 transitions, 879 flow [2024-10-11 23:54:25,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:25,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:25,553 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:25,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 23:54:25,553 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:25,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:25,553 INFO L85 PathProgramCache]: Analyzing trace with hash 873129159, now seen corresponding path program 1 times [2024-10-11 23:54:25,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:25,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325046280] [2024-10-11 23:54:25,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:25,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:26,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:26,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:26,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325046280] [2024-10-11 23:54:26,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325046280] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:26,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:26,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 23:54:26,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004770054] [2024-10-11 23:54:26,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:26,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 23:54:26,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:26,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 23:54:26,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 23:54:26,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-10-11 23:54:26,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 91 transitions, 879 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:26,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:26,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-10-11 23:54:26,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:26,525 INFO L124 PetriNetUnfolderBase]: 775/1588 cut-off events. [2024-10-11 23:54:26,526 INFO L125 PetriNetUnfolderBase]: For 4574/4574 co-relation queries the response was YES. [2024-10-11 23:54:26,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6086 conditions, 1588 events. 775/1588 cut-off events. For 4574/4574 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 9911 event pairs, 166 based on Foata normal form. 42/1618 useless extension candidates. Maximal degree in co-relation 5951. Up to 658 conditions per place. [2024-10-11 23:54:26,537 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 59 selfloop transitions, 23 changer transitions 38/130 dead transitions. [2024-10-11 23:54:26,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 130 transitions, 1197 flow [2024-10-11 23:54:26,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 23:54:26,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 23:54:26,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 157 transitions. [2024-10-11 23:54:26,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3442982456140351 [2024-10-11 23:54:26,539 INFO L175 Difference]: Start difference. First operand has 129 places, 91 transitions, 879 flow. Second operand 12 states and 157 transitions. [2024-10-11 23:54:26,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 130 transitions, 1197 flow [2024-10-11 23:54:26,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 130 transitions, 1063 flow, removed 5 selfloop flow, removed 13 redundant places. [2024-10-11 23:54:26,557 INFO L231 Difference]: Finished difference. Result has 126 places, 73 transitions, 632 flow [2024-10-11 23:54:26,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=632, PETRI_PLACES=126, PETRI_TRANSITIONS=73} [2024-10-11 23:54:26,558 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 87 predicate places. [2024-10-11 23:54:26,558 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 73 transitions, 632 flow [2024-10-11 23:54:26,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:26,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:26,558 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:26,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 23:54:26,558 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:26,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:26,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2128633757, now seen corresponding path program 2 times [2024-10-11 23:54:26,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:26,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039471360] [2024-10-11 23:54:26,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:26,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:26,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:26,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039471360] [2024-10-11 23:54:26,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039471360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:26,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:26,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 23:54:26,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34610407] [2024-10-11 23:54:26,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:26,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 23:54:26,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:26,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 23:54:26,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 23:54:27,019 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-10-11 23:54:27,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 73 transitions, 632 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:27,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:27,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-10-11 23:54:27,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:27,494 INFO L124 PetriNetUnfolderBase]: 565/1142 cut-off events. [2024-10-11 23:54:27,494 INFO L125 PetriNetUnfolderBase]: For 2310/2310 co-relation queries the response was YES. [2024-10-11 23:54:27,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4141 conditions, 1142 events. 565/1142 cut-off events. For 2310/2310 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6451 event pairs, 152 based on Foata normal form. 14/1148 useless extension candidates. Maximal degree in co-relation 4074. Up to 766 conditions per place. [2024-10-11 23:54:27,502 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 60 selfloop transitions, 22 changer transitions 25/115 dead transitions. [2024-10-11 23:54:27,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 115 transitions, 948 flow [2024-10-11 23:54:27,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 23:54:27,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 23:54:27,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 168 transitions. [2024-10-11 23:54:27,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.340080971659919 [2024-10-11 23:54:27,504 INFO L175 Difference]: Start difference. First operand has 126 places, 73 transitions, 632 flow. Second operand 13 states and 168 transitions. [2024-10-11 23:54:27,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 115 transitions, 948 flow [2024-10-11 23:54:27,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 115 transitions, 863 flow, removed 2 selfloop flow, removed 14 redundant places. [2024-10-11 23:54:27,512 INFO L231 Difference]: Finished difference. Result has 110 places, 66 transitions, 535 flow [2024-10-11 23:54:27,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=535, PETRI_PLACES=110, PETRI_TRANSITIONS=66} [2024-10-11 23:54:27,513 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 71 predicate places. [2024-10-11 23:54:27,513 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 66 transitions, 535 flow [2024-10-11 23:54:27,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:27,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:27,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:27,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 23:54:27,514 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:27,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:27,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1900100309, now seen corresponding path program 1 times [2024-10-11 23:54:27,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:27,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233949822] [2024-10-11 23:54:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:27,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:27,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:27,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:27,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233949822] [2024-10-11 23:54:27,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233949822] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:27,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:27,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 23:54:27,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811451256] [2024-10-11 23:54:27,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:27,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 23:54:27,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:27,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 23:54:27,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 23:54:27,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-10-11 23:54:27,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 66 transitions, 535 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:27,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:27,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-10-11 23:54:27,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:28,348 INFO L124 PetriNetUnfolderBase]: 487/986 cut-off events. [2024-10-11 23:54:28,349 INFO L125 PetriNetUnfolderBase]: For 1787/1787 co-relation queries the response was YES. [2024-10-11 23:54:28,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3479 conditions, 986 events. 487/986 cut-off events. For 1787/1787 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5346 event pairs, 136 based on Foata normal form. 12/990 useless extension candidates. Maximal degree in co-relation 3414. Up to 654 conditions per place. [2024-10-11 23:54:28,354 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 48 selfloop transitions, 14 changer transitions 35/103 dead transitions. [2024-10-11 23:54:28,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 103 transitions, 821 flow [2024-10-11 23:54:28,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 23:54:28,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 23:54:28,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 159 transitions. [2024-10-11 23:54:28,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32186234817813764 [2024-10-11 23:54:28,356 INFO L175 Difference]: Start difference. First operand has 110 places, 66 transitions, 535 flow. Second operand 13 states and 159 transitions. [2024-10-11 23:54:28,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 103 transitions, 821 flow [2024-10-11 23:54:28,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 103 transitions, 772 flow, removed 1 selfloop flow, removed 10 redundant places. [2024-10-11 23:54:28,363 INFO L231 Difference]: Finished difference. Result has 108 places, 54 transitions, 408 flow [2024-10-11 23:54:28,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=408, PETRI_PLACES=108, PETRI_TRANSITIONS=54} [2024-10-11 23:54:28,364 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 69 predicate places. [2024-10-11 23:54:28,364 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 54 transitions, 408 flow [2024-10-11 23:54:28,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:28,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:28,364 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:28,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 23:54:28,365 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:28,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:28,365 INFO L85 PathProgramCache]: Analyzing trace with hash 925198435, now seen corresponding path program 3 times [2024-10-11 23:54:28,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:28,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936816311] [2024-10-11 23:54:28,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:28,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:28,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:28,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:28,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936816311] [2024-10-11 23:54:28,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936816311] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:28,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:28,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 23:54:28,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474086815] [2024-10-11 23:54:28,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:28,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 23:54:28,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:28,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 23:54:28,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 23:54:28,794 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-10-11 23:54:28,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 54 transitions, 408 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:28,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:28,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-10-11 23:54:28,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:29,250 INFO L124 PetriNetUnfolderBase]: 381/782 cut-off events. [2024-10-11 23:54:29,250 INFO L125 PetriNetUnfolderBase]: For 1359/1359 co-relation queries the response was YES. [2024-10-11 23:54:29,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2767 conditions, 782 events. 381/782 cut-off events. For 1359/1359 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4091 event pairs, 80 based on Foata normal form. 14/792 useless extension candidates. Maximal degree in co-relation 2734. Up to 475 conditions per place. [2024-10-11 23:54:29,254 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 38 selfloop transitions, 19 changer transitions 24/86 dead transitions. [2024-10-11 23:54:29,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 86 transitions, 653 flow [2024-10-11 23:54:29,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 23:54:29,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-11 23:54:29,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 156 transitions. [2024-10-11 23:54:29,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2932330827067669 [2024-10-11 23:54:29,256 INFO L175 Difference]: Start difference. First operand has 108 places, 54 transitions, 408 flow. Second operand 14 states and 156 transitions. [2024-10-11 23:54:29,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 86 transitions, 653 flow [2024-10-11 23:54:29,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 86 transitions, 536 flow, removed 3 selfloop flow, removed 22 redundant places. [2024-10-11 23:54:29,261 INFO L231 Difference]: Finished difference. Result has 85 places, 44 transitions, 278 flow [2024-10-11 23:54:29,261 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=278, PETRI_PLACES=85, PETRI_TRANSITIONS=44} [2024-10-11 23:54:29,261 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 46 predicate places. [2024-10-11 23:54:29,262 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 44 transitions, 278 flow [2024-10-11 23:54:29,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:29,262 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:29,262 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:29,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 23:54:29,262 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:29,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:29,263 INFO L85 PathProgramCache]: Analyzing trace with hash 658965205, now seen corresponding path program 2 times [2024-10-11 23:54:29,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:29,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623196842] [2024-10-11 23:54:29,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:29,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:29,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:29,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:29,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623196842] [2024-10-11 23:54:29,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623196842] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:29,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:29,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 23:54:29,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185562426] [2024-10-11 23:54:29,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:29,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 23:54:29,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:29,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 23:54:29,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 23:54:29,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-10-11 23:54:29,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 44 transitions, 278 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:29,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:29,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-10-11 23:54:29,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:29,949 INFO L124 PetriNetUnfolderBase]: 303/620 cut-off events. [2024-10-11 23:54:29,949 INFO L125 PetriNetUnfolderBase]: For 853/853 co-relation queries the response was YES. [2024-10-11 23:54:29,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1976 conditions, 620 events. 303/620 cut-off events. For 853/853 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3013 event pairs, 65 based on Foata normal form. 12/628 useless extension candidates. Maximal degree in co-relation 1951. Up to 363 conditions per place. [2024-10-11 23:54:29,951 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 30 selfloop transitions, 12 changer transitions 28/73 dead transitions. [2024-10-11 23:54:29,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 73 transitions, 490 flow [2024-10-11 23:54:29,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 23:54:29,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 23:54:29,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 134 transitions. [2024-10-11 23:54:29,953 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.29385964912280704 [2024-10-11 23:54:29,953 INFO L175 Difference]: Start difference. First operand has 85 places, 44 transitions, 278 flow. Second operand 12 states and 134 transitions. [2024-10-11 23:54:29,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 73 transitions, 490 flow [2024-10-11 23:54:29,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 73 transitions, 452 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-10-11 23:54:29,956 INFO L231 Difference]: Finished difference. Result has 70 places, 34 transitions, 198 flow [2024-10-11 23:54:29,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=198, PETRI_PLACES=70, PETRI_TRANSITIONS=34} [2024-10-11 23:54:29,956 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 31 predicate places. [2024-10-11 23:54:29,957 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 34 transitions, 198 flow [2024-10-11 23:54:29,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:29,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:29,957 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:29,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 23:54:29,957 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:29,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:29,957 INFO L85 PathProgramCache]: Analyzing trace with hash 520085141, now seen corresponding path program 3 times [2024-10-11 23:54:29,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:29,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604129036] [2024-10-11 23:54:29,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:29,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:30,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:30,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604129036] [2024-10-11 23:54:30,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604129036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:30,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:30,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 23:54:30,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153651532] [2024-10-11 23:54:30,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:30,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 23:54:30,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:30,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 23:54:30,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 23:54:30,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-10-11 23:54:30,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 34 transitions, 198 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:30,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:30,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-10-11 23:54:30,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:30,612 INFO L124 PetriNetUnfolderBase]: 192/405 cut-off events. [2024-10-11 23:54:30,613 INFO L125 PetriNetUnfolderBase]: For 618/618 co-relation queries the response was YES. [2024-10-11 23:54:30,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 405 events. 192/405 cut-off events. For 618/618 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1786 event pairs, 32 based on Foata normal form. 24/425 useless extension candidates. Maximal degree in co-relation 1252. Up to 139 conditions per place. [2024-10-11 23:54:30,615 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 22 selfloop transitions, 9 changer transitions 22/55 dead transitions. [2024-10-11 23:54:30,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 55 transitions, 352 flow [2024-10-11 23:54:30,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 23:54:30,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-11 23:54:30,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 116 transitions. [2024-10-11 23:54:30,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.27751196172248804 [2024-10-11 23:54:30,616 INFO L175 Difference]: Start difference. First operand has 70 places, 34 transitions, 198 flow. Second operand 11 states and 116 transitions. [2024-10-11 23:54:30,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 55 transitions, 352 flow [2024-10-11 23:54:30,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 303 flow, removed 6 selfloop flow, removed 11 redundant places. [2024-10-11 23:54:30,618 INFO L231 Difference]: Finished difference. Result has 59 places, 25 transitions, 119 flow [2024-10-11 23:54:30,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=119, PETRI_PLACES=59, PETRI_TRANSITIONS=25} [2024-10-11 23:54:30,620 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 20 predicate places. [2024-10-11 23:54:30,620 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 25 transitions, 119 flow [2024-10-11 23:54:30,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:30,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:54:30,620 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:54:30,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 23:54:30,620 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-11 23:54:30,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:54:30,621 INFO L85 PathProgramCache]: Analyzing trace with hash 433393331, now seen corresponding path program 4 times [2024-10-11 23:54:30,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:54:30,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214096946] [2024-10-11 23:54:30,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:54:30,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:54:30,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:54:31,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:54:31,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:54:31,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214096946] [2024-10-11 23:54:31,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214096946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:54:31,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:54:31,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 23:54:31,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697065217] [2024-10-11 23:54:31,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:54:31,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 23:54:31,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:54:31,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 23:54:31,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 23:54:31,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-10-11 23:54:31,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 25 transitions, 119 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:31,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:54:31,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-10-11 23:54:31,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:54:31,273 INFO L124 PetriNetUnfolderBase]: 69/154 cut-off events. [2024-10-11 23:54:31,273 INFO L125 PetriNetUnfolderBase]: For 160/160 co-relation queries the response was YES. [2024-10-11 23:54:31,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 154 events. 69/154 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 465 event pairs, 0 based on Foata normal form. 12/166 useless extension candidates. Maximal degree in co-relation 432. Up to 58 conditions per place. [2024-10-11 23:54:31,273 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2024-10-11 23:54:31,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 42 transitions, 236 flow [2024-10-11 23:54:31,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 23:54:31,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-11 23:54:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 107 transitions. [2024-10-11 23:54:31,275 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.25598086124401914 [2024-10-11 23:54:31,275 INFO L175 Difference]: Start difference. First operand has 59 places, 25 transitions, 119 flow. Second operand 11 states and 107 transitions. [2024-10-11 23:54:31,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 42 transitions, 236 flow [2024-10-11 23:54:31,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 42 transitions, 199 flow, removed 0 selfloop flow, removed 14 redundant places. [2024-10-11 23:54:31,277 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2024-10-11 23:54:31,277 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2024-10-11 23:54:31,278 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2024-10-11 23:54:31,278 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2024-10-11 23:54:31,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:54:31,282 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-10-11 23:54:31,283 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2024-10-11 23:54:31,283 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-10-11 23:54:31,283 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-10-11 23:54:31,283 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-10-11 23:54:31,283 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-10-11 23:54:31,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-10-11 23:54:31,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-10-11 23:54:31,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 23:54:31,284 INFO L407 BasicCegarLoop]: Path program histogram: [5, 4, 4, 3, 3, 2, 1, 1, 1] [2024-10-11 23:54:31,290 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 23:54:31,290 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 23:54:31,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 11:54:31 BasicIcfg [2024-10-11 23:54:31,294 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 23:54:31,295 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 23:54:31,295 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 23:54:31,295 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 23:54:31,296 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:54:08" (3/4) ... [2024-10-11 23:54:31,297 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 23:54:31,300 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2024-10-11 23:54:31,308 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 122 nodes and edges [2024-10-11 23:54:31,312 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2024-10-11 23:54:31,312 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-11 23:54:31,312 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 23:54:31,414 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 23:54:31,414 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 23:54:31,415 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 23:54:31,415 INFO L158 Benchmark]: Toolchain (without parser) took 24767.43ms. Allocated memory was 174.1MB in the beginning and 599.8MB in the end (delta: 425.7MB). Free memory was 142.7MB in the beginning and 401.5MB in the end (delta: -258.8MB). Peak memory consumption was 166.6MB. Max. memory is 16.1GB. [2024-10-11 23:54:31,415 INFO L158 Benchmark]: CDTParser took 1.07ms. Allocated memory is still 130.0MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 23:54:31,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 696.62ms. Allocated memory is still 174.1MB. Free memory was 142.7MB in the beginning and 106.3MB in the end (delta: 36.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-10-11 23:54:31,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.63ms. Allocated memory is still 174.1MB. Free memory was 106.3MB in the beginning and 103.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 23:54:31,416 INFO L158 Benchmark]: Boogie Preprocessor took 81.48ms. Allocated memory is still 174.1MB. Free memory was 103.6MB in the beginning and 100.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 23:54:31,416 INFO L158 Benchmark]: RCFGBuilder took 956.18ms. Allocated memory is still 174.1MB. Free memory was 100.0MB in the beginning and 103.9MB in the end (delta: -3.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 23:54:31,417 INFO L158 Benchmark]: TraceAbstraction took 22849.66ms. Allocated memory was 174.1MB in the beginning and 599.8MB in the end (delta: 425.7MB). Free memory was 103.9MB in the beginning and 406.8MB in the end (delta: -302.9MB). Peak memory consumption was 123.9MB. Max. memory is 16.1GB. [2024-10-11 23:54:31,418 INFO L158 Benchmark]: Witness Printer took 119.66ms. Allocated memory is still 599.8MB. Free memory was 406.8MB in the beginning and 401.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 23:54:31,420 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.07ms. Allocated memory is still 130.0MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 696.62ms. Allocated memory is still 174.1MB. Free memory was 142.7MB in the beginning and 106.3MB in the end (delta: 36.4MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.63ms. Allocated memory is still 174.1MB. Free memory was 106.3MB in the beginning and 103.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.48ms. Allocated memory is still 174.1MB. Free memory was 103.6MB in the beginning and 100.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 956.18ms. Allocated memory is still 174.1MB. Free memory was 100.0MB in the beginning and 103.9MB in the end (delta: -3.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 22849.66ms. Allocated memory was 174.1MB in the beginning and 599.8MB in the end (delta: 425.7MB). Free memory was 103.9MB in the beginning and 406.8MB in the end (delta: -302.9MB). Peak memory consumption was 123.9MB. Max. memory is 16.1GB. * Witness Printer took 119.66ms. Allocated memory is still 599.8MB. Free memory was 406.8MB in the beginning and 401.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3905]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 3905]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 48 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 22.7s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2014 SdHoareTripleChecker+Valid, 6.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1892 mSDsluCounter, 1357 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1276 mSDsCounter, 270 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7712 IncrementalHoareTripleChecker+Invalid, 7982 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 270 mSolverCounterUnsat, 81 mSDtfsCounter, 7712 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 314 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=911occurred in iteration=16, InterpolantAutomatonStates: 260, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 320 ConstructedInterpolants, 0 QuantifiedInterpolants, 3217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 23:54:31,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE