./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 fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 21:50:37,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 21:50:37,122 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 21:50:37,128 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 21:50:37,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 21:50:37,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 21:50:37,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 21:50:37,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 21:50:37,163 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 21:50:37,165 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 21:50:37,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 21:50:37,166 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 21:50:37,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 21:50:37,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 21:50:37,169 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 21:50:37,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 21:50:37,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 21:50:37,170 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 21:50:37,170 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 21:50:37,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 21:50:37,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 21:50:37,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 21:50:37,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 21:50:37,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 21:50:37,175 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 21:50:37,175 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 21:50:37,175 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 21:50:37,175 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 21:50:37,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 21:50:37,176 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 21:50:37,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 21:50:37,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 21:50:37,177 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 21:50:37,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 21:50:37,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:50:37,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 21:50:37,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 21:50:37,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 21:50:37,178 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 21:50:37,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 21:50:37,179 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 21:50:37,180 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 21:50:37,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 21:50:37,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 21:50:37,181 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75716fdd637a22328d600b3257cf24f40a7920b464397c315485c5ed90fb6ece [2024-11-20 21:50:37,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 21:50:37,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 21:50:37,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 21:50:37,493 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 21:50:37,493 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 21:50:37,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-20 21:50:38,907 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 21:50:39,243 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 21:50:39,244 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2024-11-20 21:50:39,282 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e07d04994/d93cf94fb2df41e3a309eef178ee9928/FLAG9ef26bf75 [2024-11-20 21:50:39,297 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e07d04994/d93cf94fb2df41e3a309eef178ee9928 [2024-11-20 21:50:39,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 21:50:39,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 21:50:39,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 21:50:39,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 21:50:39,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 21:50:39,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:50:39" (1/1) ... [2024-11-20 21:50:39,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ecfc0dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:39, skipping insertion in model container [2024-11-20 21:50:39,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:50:39" (1/1) ... [2024-11-20 21:50:39,377 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 21:50:39,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:50:39,894 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 21:50:39,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:50:40,060 INFO L204 MainTranslator]: Completed translation [2024-11-20 21:50:40,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40 WrapperNode [2024-11-20 21:50:40,061 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 21:50:40,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 21:50:40,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 21:50:40,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 21:50:40,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40" (1/1) ... [2024-11-20 21:50:40,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40" (1/1) ... [2024-11-20 21:50:40,151 INFO L138 Inliner]: procedures = 246, calls = 40, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 145 [2024-11-20 21:50:40,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 21:50:40,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 21:50:40,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 21:50:40,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 21:50:40,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40" (1/1) ... [2024-11-20 21:50:40,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40" (1/1) ... [2024-11-20 21:50:40,174 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40" (1/1) ... [2024-11-20 21:50:40,192 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]. [2024-11-20 21:50:40,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40" (1/1) ... [2024-11-20 21:50:40,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40" (1/1) ... [2024-11-20 21:50:40,203 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40" (1/1) ... [2024-11-20 21:50:40,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40" (1/1) ... [2024-11-20 21:50:40,213 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40" (1/1) ... [2024-11-20 21:50:40,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40" (1/1) ... [2024-11-20 21:50:40,224 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 21:50:40,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 21:50:40,225 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 21:50:40,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 21:50:40,226 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40" (1/1) ... [2024-11-20 21:50:40,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:50:40,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:50:40,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 21:50:40,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 21:50:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-11-20 21:50:40,340 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-11-20 21:50:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 21:50:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 21:50:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 21:50:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 21:50:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 21:50:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 21:50:40,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 21:50:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 21:50:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 21:50:40,343 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 21:50:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 21:50:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 21:50:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 21:50:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 21:50:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 21:50:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 21:50:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 21:50:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 21:50:40,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 21:50:40,347 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 21:50:40,641 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 21:50:40,643 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 21:50:40,891 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 21:50:40,892 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 21:50:41,077 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 21:50:41,078 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 21:50:41,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:50:41 BoogieIcfgContainer [2024-11-20 21:50:41,078 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 21:50:41,080 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 21:50:41,081 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 21:50:41,084 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 21:50:41,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:50:39" (1/3) ... [2024-11-20 21:50:41,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496acd6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:50:41, skipping insertion in model container [2024-11-20 21:50:41,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:50:40" (2/3) ... [2024-11-20 21:50:41,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496acd6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:50:41, skipping insertion in model container [2024-11-20 21:50:41,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:50:41" (3/3) ... [2024-11-20 21:50:41,087 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2024-11-20 21:50:41,107 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 21:50:41,109 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 21:50:41,109 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 21:50:41,166 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 21:50:41,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 38 transitions, 90 flow [2024-11-20 21:50:41,274 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-11-20 21:50:41,274 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 21:50:41,276 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. [2024-11-20 21:50:41,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 38 transitions, 90 flow [2024-11-20 21:50:41,280 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 32 transitions, 73 flow [2024-11-20 21:50:41,295 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 21:50:41,303 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;@74bada8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 21:50:41,304 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-20 21:50:41,317 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 21:50:41,318 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-20 21:50:41,318 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 21:50:41,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:41,319 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:41,320 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:41,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:41,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1371065065, now seen corresponding path program 1 times [2024-11-20 21:50:41,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:41,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170446265] [2024-11-20 21:50:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:41,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:42,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:42,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:42,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170446265] [2024-11-20 21:50:42,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170446265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:42,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:42,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 21:50:42,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503148468] [2024-11-20 21:50:42,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:42,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:50:42,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:42,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:50:42,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 21:50:42,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-11-20 21:50:42,277 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) [2024-11-20 21:50:42,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:42,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-11-20 21:50:42,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:42,792 INFO L124 PetriNetUnfolderBase]: 621/1208 cut-off events. [2024-11-20 21:50:42,792 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-20 21:50:42,799 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. [2024-11-20 21:50:42,809 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 58 selfloop transitions, 18 changer transitions 3/84 dead transitions. [2024-11-20 21:50:42,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 84 transitions, 344 flow [2024-11-20 21:50:42,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 21:50:42,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 21:50:42,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 155 transitions. [2024-11-20 21:50:42,827 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45321637426900585 [2024-11-20 21:50:42,829 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 73 flow. Second operand 9 states and 155 transitions. [2024-11-20 21:50:42,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 84 transitions, 344 flow [2024-11-20 21:50:42,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 84 transitions, 336 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 21:50:42,838 INFO L231 Difference]: Finished difference. Result has 48 places, 50 transitions, 182 flow [2024-11-20 21:50:42,840 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} [2024-11-20 21:50:42,845 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2024-11-20 21:50:42,845 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 50 transitions, 182 flow [2024-11-20 21:50:42,846 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) [2024-11-20 21:50:42,846 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:42,846 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:42,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 21:50:42,846 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:42,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:42,847 INFO L85 PathProgramCache]: Analyzing trace with hash 625871757, now seen corresponding path program 1 times [2024-11-20 21:50:42,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:42,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704350969] [2024-11-20 21:50:42,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:42,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:43,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:43,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:43,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704350969] [2024-11-20 21:50:43,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704350969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:43,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:43,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 21:50:43,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062585687] [2024-11-20 21:50:43,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:43,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:50:43,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:43,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:50:43,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 21:50:43,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-11-20 21:50:43,235 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) [2024-11-20 21:50:43,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:43,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-11-20 21:50:43,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:43,586 INFO L124 PetriNetUnfolderBase]: 672/1238 cut-off events. [2024-11-20 21:50:43,587 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2024-11-20 21:50:43,591 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. [2024-11-20 21:50:43,596 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 60 selfloop transitions, 24 changer transitions 5/94 dead transitions. [2024-11-20 21:50:43,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 94 transitions, 496 flow [2024-11-20 21:50:43,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 21:50:43,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 21:50:43,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 153 transitions. [2024-11-20 21:50:43,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2024-11-20 21:50:43,599 INFO L175 Difference]: Start difference. First operand has 48 places, 50 transitions, 182 flow. Second operand 9 states and 153 transitions. [2024-11-20 21:50:43,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 94 transitions, 496 flow [2024-11-20 21:50:43,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 94 transitions, 494 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:50:43,605 INFO L231 Difference]: Finished difference. Result has 57 places, 62 transitions, 299 flow [2024-11-20 21:50:43,605 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} [2024-11-20 21:50:43,606 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2024-11-20 21:50:43,606 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 62 transitions, 299 flow [2024-11-20 21:50:43,606 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) [2024-11-20 21:50:43,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:43,606 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:43,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 21:50:43,607 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:43,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:43,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1799878917, now seen corresponding path program 1 times [2024-11-20 21:50:43,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:43,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890102127] [2024-11-20 21:50:43,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:43,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:44,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:44,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:44,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890102127] [2024-11-20 21:50:44,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890102127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:44,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:44,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:44,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446523963] [2024-11-20 21:50:44,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:44,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:44,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:44,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:44,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:44,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-11-20 21:50:44,205 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) [2024-11-20 21:50:44,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:44,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-11-20 21:50:44,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:44,750 INFO L124 PetriNetUnfolderBase]: 728/1329 cut-off events. [2024-11-20 21:50:44,750 INFO L125 PetriNetUnfolderBase]: For 1096/1096 co-relation queries the response was YES. [2024-11-20 21:50:44,755 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. [2024-11-20 21:50:44,762 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 60 selfloop transitions, 26 changer transitions 18/109 dead transitions. [2024-11-20 21:50:44,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 109 transitions, 657 flow [2024-11-20 21:50:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 21:50:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-20 21:50:44,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 183 transitions. [2024-11-20 21:50:44,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43779904306220097 [2024-11-20 21:50:44,766 INFO L175 Difference]: Start difference. First operand has 57 places, 62 transitions, 299 flow. Second operand 11 states and 183 transitions. [2024-11-20 21:50:44,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 109 transitions, 657 flow [2024-11-20 21:50:44,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 109 transitions, 655 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 21:50:44,773 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 390 flow [2024-11-20 21:50:44,774 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} [2024-11-20 21:50:44,774 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 30 predicate places. [2024-11-20 21:50:44,775 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 390 flow [2024-11-20 21:50:44,775 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) [2024-11-20 21:50:44,775 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:44,775 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:44,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 21:50:44,777 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:44,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:44,778 INFO L85 PathProgramCache]: Analyzing trace with hash 899651241, now seen corresponding path program 2 times [2024-11-20 21:50:44,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:44,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467516971] [2024-11-20 21:50:44,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:44,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:45,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:45,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:45,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467516971] [2024-11-20 21:50:45,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467516971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:45,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:45,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:45,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203101579] [2024-11-20 21:50:45,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:45,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:45,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:45,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:45,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:45,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-11-20 21:50:45,323 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) [2024-11-20 21:50:45,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:45,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-11-20 21:50:45,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:45,968 INFO L124 PetriNetUnfolderBase]: 796/1474 cut-off events. [2024-11-20 21:50:45,968 INFO L125 PetriNetUnfolderBase]: For 2714/2714 co-relation queries the response was YES. [2024-11-20 21:50:45,973 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. [2024-11-20 21:50:45,979 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 75 selfloop transitions, 39 changer transitions 12/131 dead transitions. [2024-11-20 21:50:45,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 131 transitions, 932 flow [2024-11-20 21:50:45,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 21:50:45,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 21:50:45,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 212 transitions. [2024-11-20 21:50:45,981 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4291497975708502 [2024-11-20 21:50:45,982 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 390 flow. Second operand 13 states and 212 transitions. [2024-11-20 21:50:45,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 131 transitions, 932 flow [2024-11-20 21:50:45,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 131 transitions, 848 flow, removed 6 selfloop flow, removed 8 redundant places. [2024-11-20 21:50:45,997 INFO L231 Difference]: Finished difference. Result has 77 places, 81 transitions, 588 flow [2024-11-20 21:50:45,998 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} [2024-11-20 21:50:45,999 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 38 predicate places. [2024-11-20 21:50:45,999 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 81 transitions, 588 flow [2024-11-20 21:50:45,999 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) [2024-11-20 21:50:46,000 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:46,001 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:46,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 21:50:46,001 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:46,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:46,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1789759587, now seen corresponding path program 3 times [2024-11-20 21:50:46,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:46,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447835702] [2024-11-20 21:50:46,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:46,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:46,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:46,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:46,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447835702] [2024-11-20 21:50:46,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447835702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:46,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:46,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:46,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197884160] [2024-11-20 21:50:46,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:46,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:46,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:46,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:46,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:46,417 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-11-20 21:50:46,418 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) [2024-11-20 21:50:46,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:46,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-11-20 21:50:46,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:47,048 INFO L124 PetriNetUnfolderBase]: 780/1420 cut-off events. [2024-11-20 21:50:47,048 INFO L125 PetriNetUnfolderBase]: For 3745/3745 co-relation queries the response was YES. [2024-11-20 21:50:47,054 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. [2024-11-20 21:50:47,061 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 78 selfloop transitions, 42 changer transitions 17/142 dead transitions. [2024-11-20 21:50:47,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 142 transitions, 1122 flow [2024-11-20 21:50:47,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 21:50:47,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 21:50:47,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 205 transitions. [2024-11-20 21:50:47,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44956140350877194 [2024-11-20 21:50:47,063 INFO L175 Difference]: Start difference. First operand has 77 places, 81 transitions, 588 flow. Second operand 12 states and 205 transitions. [2024-11-20 21:50:47,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 142 transitions, 1122 flow [2024-11-20 21:50:47,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 142 transitions, 1037 flow, removed 14 selfloop flow, removed 7 redundant places. [2024-11-20 21:50:47,079 INFO L231 Difference]: Finished difference. Result has 85 places, 88 transitions, 717 flow [2024-11-20 21:50:47,079 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} [2024-11-20 21:50:47,080 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 46 predicate places. [2024-11-20 21:50:47,080 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 88 transitions, 717 flow [2024-11-20 21:50:47,081 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) [2024-11-20 21:50:47,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:47,081 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:47,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 21:50:47,081 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:47,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:47,082 INFO L85 PathProgramCache]: Analyzing trace with hash 546323968, now seen corresponding path program 1 times [2024-11-20 21:50:47,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:47,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659756466] [2024-11-20 21:50:47,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:47,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:47,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:47,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:47,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659756466] [2024-11-20 21:50:47,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659756466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:47,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:47,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:47,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613699193] [2024-11-20 21:50:47,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:47,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:47,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:47,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:47,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:47,515 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-11-20 21:50:47,516 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) [2024-11-20 21:50:47,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:47,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-11-20 21:50:47,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:48,148 INFO L124 PetriNetUnfolderBase]: 759/1422 cut-off events. [2024-11-20 21:50:48,149 INFO L125 PetriNetUnfolderBase]: For 4142/4169 co-relation queries the response was YES. [2024-11-20 21:50:48,155 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. [2024-11-20 21:50:48,161 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 75 selfloop transitions, 42 changer transitions 12/134 dead transitions. [2024-11-20 21:50:48,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 134 transitions, 1125 flow [2024-11-20 21:50:48,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 21:50:48,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 21:50:48,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 212 transitions. [2024-11-20 21:50:48,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4291497975708502 [2024-11-20 21:50:48,163 INFO L175 Difference]: Start difference. First operand has 85 places, 88 transitions, 717 flow. Second operand 13 states and 212 transitions. [2024-11-20 21:50:48,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 134 transitions, 1125 flow [2024-11-20 21:50:48,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 134 transitions, 1076 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-11-20 21:50:48,181 INFO L231 Difference]: Finished difference. Result has 94 places, 85 transitions, 750 flow [2024-11-20 21:50:48,182 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} [2024-11-20 21:50:48,182 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 55 predicate places. [2024-11-20 21:50:48,183 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 85 transitions, 750 flow [2024-11-20 21:50:48,183 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) [2024-11-20 21:50:48,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:48,183 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:48,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 21:50:48,184 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:48,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:48,184 INFO L85 PathProgramCache]: Analyzing trace with hash 899642880, now seen corresponding path program 2 times [2024-11-20 21:50:48,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:48,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486944244] [2024-11-20 21:50:48,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:48,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:48,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:48,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:48,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486944244] [2024-11-20 21:50:48,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486944244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:48,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:48,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:48,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647794390] [2024-11-20 21:50:48,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:48,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:48,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:48,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:48,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:48,563 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2024-11-20 21:50:48,564 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) [2024-11-20 21:50:48,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:48,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2024-11-20 21:50:48,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:49,122 INFO L124 PetriNetUnfolderBase]: 768/1446 cut-off events. [2024-11-20 21:50:49,122 INFO L125 PetriNetUnfolderBase]: For 5195/5226 co-relation queries the response was YES. [2024-11-20 21:50:49,128 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. [2024-11-20 21:50:49,136 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 73 selfloop transitions, 40 changer transitions 13/131 dead transitions. [2024-11-20 21:50:49,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 131 transitions, 1178 flow [2024-11-20 21:50:49,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 21:50:49,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 21:50:49,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 198 transitions. [2024-11-20 21:50:49,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4342105263157895 [2024-11-20 21:50:49,139 INFO L175 Difference]: Start difference. First operand has 94 places, 85 transitions, 750 flow. Second operand 12 states and 198 transitions. [2024-11-20 21:50:49,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 131 transitions, 1178 flow [2024-11-20 21:50:49,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 131 transitions, 1044 flow, removed 5 selfloop flow, removed 15 redundant places. [2024-11-20 21:50:49,163 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 720 flow [2024-11-20 21:50:49,163 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} [2024-11-20 21:50:49,164 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 53 predicate places. [2024-11-20 21:50:49,164 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 720 flow [2024-11-20 21:50:49,164 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) [2024-11-20 21:50:49,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:49,164 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:49,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 21:50:49,165 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:49,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:49,165 INFO L85 PathProgramCache]: Analyzing trace with hash -578233808, now seen corresponding path program 1 times [2024-11-20 21:50:49,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:49,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216997335] [2024-11-20 21:50:49,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:49,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:49,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:49,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:49,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216997335] [2024-11-20 21:50:49,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216997335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:49,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:49,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 21:50:49,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37729491] [2024-11-20 21:50:49,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:49,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:50:49,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:49,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:50:49,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:50:49,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 38 [2024-11-20 21:50:49,237 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) [2024-11-20 21:50:49,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:49,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 38 [2024-11-20 21:50:49,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:49,445 INFO L124 PetriNetUnfolderBase]: 365/703 cut-off events. [2024-11-20 21:50:49,445 INFO L125 PetriNetUnfolderBase]: For 1975/2060 co-relation queries the response was YES. [2024-11-20 21:50:49,448 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. [2024-11-20 21:50:49,452 INFO L140 encePairwiseOnDemand]: 35/38 looper letters, 99 selfloop transitions, 7 changer transitions 6/118 dead transitions. [2024-11-20 21:50:49,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 118 transitions, 1160 flow [2024-11-20 21:50:49,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:50:49,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:50:49,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-11-20 21:50:49,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5526315789473685 [2024-11-20 21:50:49,456 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 720 flow. Second operand 4 states and 84 transitions. [2024-11-20 21:50:49,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 118 transitions, 1160 flow [2024-11-20 21:50:49,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 118 transitions, 977 flow, removed 25 selfloop flow, removed 15 redundant places. [2024-11-20 21:50:49,466 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 418 flow [2024-11-20 21:50:49,466 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} [2024-11-20 21:50:49,467 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 33 predicate places. [2024-11-20 21:50:49,467 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 418 flow [2024-11-20 21:50:49,468 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) [2024-11-20 21:50:49,468 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:49,468 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:49,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 21:50:49,468 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:49,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:49,469 INFO L85 PathProgramCache]: Analyzing trace with hash -665345599, now seen corresponding path program 1 times [2024-11-20 21:50:49,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:49,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920118489] [2024-11-20 21:50:49,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:49,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:49,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:49,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:49,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920118489] [2024-11-20 21:50:49,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920118489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:49,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:49,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:49,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988212687] [2024-11-20 21:50:49,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:49,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:49,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:49,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:49,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:49,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 38 [2024-11-20 21:50:49,876 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) [2024-11-20 21:50:49,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:49,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 38 [2024-11-20 21:50:49,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:50,368 INFO L124 PetriNetUnfolderBase]: 561/996 cut-off events. [2024-11-20 21:50:50,368 INFO L125 PetriNetUnfolderBase]: For 1529/1529 co-relation queries the response was YES. [2024-11-20 21:50:50,371 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. [2024-11-20 21:50:50,376 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 100 selfloop transitions, 28 changer transitions 0/128 dead transitions. [2024-11-20 21:50:50,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 128 transitions, 906 flow [2024-11-20 21:50:50,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 21:50:50,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-20 21:50:50,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 146 transitions. [2024-11-20 21:50:50,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3492822966507177 [2024-11-20 21:50:50,378 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 418 flow. Second operand 11 states and 146 transitions. [2024-11-20 21:50:50,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 128 transitions, 906 flow [2024-11-20 21:50:50,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 128 transitions, 853 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-20 21:50:50,387 INFO L231 Difference]: Finished difference. Result has 81 places, 67 transitions, 478 flow [2024-11-20 21:50:50,387 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} [2024-11-20 21:50:50,388 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 42 predicate places. [2024-11-20 21:50:50,389 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 67 transitions, 478 flow [2024-11-20 21:50:50,389 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) [2024-11-20 21:50:50,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:50,390 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:50,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 21:50:50,390 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:50,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:50,391 INFO L85 PathProgramCache]: Analyzing trace with hash -2120512723, now seen corresponding path program 2 times [2024-11-20 21:50:50,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:50,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167121145] [2024-11-20 21:50:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:50,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:50,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:50,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:50,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167121145] [2024-11-20 21:50:50,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167121145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:50,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:50,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:50,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066311810] [2024-11-20 21:50:50,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:50,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:50,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:50,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:50,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:50,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 38 [2024-11-20 21:50:50,869 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) [2024-11-20 21:50:50,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:50,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 38 [2024-11-20 21:50:50,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:51,374 INFO L124 PetriNetUnfolderBase]: 643/1232 cut-off events. [2024-11-20 21:50:51,374 INFO L125 PetriNetUnfolderBase]: For 1669/1669 co-relation queries the response was YES. [2024-11-20 21:50:51,378 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. [2024-11-20 21:50:51,384 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 106 selfloop transitions, 21 changer transitions 0/131 dead transitions. [2024-11-20 21:50:51,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 131 transitions, 932 flow [2024-11-20 21:50:51,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 21:50:51,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 21:50:51,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 149 transitions. [2024-11-20 21:50:51,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39210526315789473 [2024-11-20 21:50:51,385 INFO L175 Difference]: Start difference. First operand has 81 places, 67 transitions, 478 flow. Second operand 10 states and 149 transitions. [2024-11-20 21:50:51,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 131 transitions, 932 flow [2024-11-20 21:50:51,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 131 transitions, 884 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-20 21:50:51,396 INFO L231 Difference]: Finished difference. Result has 89 places, 72 transitions, 516 flow [2024-11-20 21:50:51,397 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} [2024-11-20 21:50:51,397 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 50 predicate places. [2024-11-20 21:50:51,397 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 72 transitions, 516 flow [2024-11-20 21:50:51,398 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) [2024-11-20 21:50:51,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:51,398 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:51,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 21:50:51,398 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:51,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:51,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1749614773, now seen corresponding path program 3 times [2024-11-20 21:50:51,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:51,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741745972] [2024-11-20 21:50:51,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:51,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:51,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:51,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:51,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741745972] [2024-11-20 21:50:51,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741745972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:51,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:51,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:51,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877759533] [2024-11-20 21:50:51,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:51,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:51,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:51,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:51,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:51,741 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 38 [2024-11-20 21:50:51,741 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) [2024-11-20 21:50:51,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:51,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 38 [2024-11-20 21:50:51,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:52,195 INFO L124 PetriNetUnfolderBase]: 624/1197 cut-off events. [2024-11-20 21:50:52,195 INFO L125 PetriNetUnfolderBase]: For 2094/2094 co-relation queries the response was YES. [2024-11-20 21:50:52,201 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. [2024-11-20 21:50:52,212 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 95 selfloop transitions, 26 changer transitions 0/125 dead transitions. [2024-11-20 21:50:52,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 125 transitions, 925 flow [2024-11-20 21:50:52,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 21:50:52,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 21:50:52,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 133 transitions. [2024-11-20 21:50:52,214 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3888888888888889 [2024-11-20 21:50:52,215 INFO L175 Difference]: Start difference. First operand has 89 places, 72 transitions, 516 flow. Second operand 9 states and 133 transitions. [2024-11-20 21:50:52,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 125 transitions, 925 flow [2024-11-20 21:50:52,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 125 transitions, 894 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-20 21:50:52,229 INFO L231 Difference]: Finished difference. Result has 99 places, 75 transitions, 594 flow [2024-11-20 21:50:52,230 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} [2024-11-20 21:50:52,230 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 60 predicate places. [2024-11-20 21:50:52,230 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 75 transitions, 594 flow [2024-11-20 21:50:52,231 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) [2024-11-20 21:50:52,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:52,231 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:52,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 21:50:52,232 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:52,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:52,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1039713035, now seen corresponding path program 4 times [2024-11-20 21:50:52,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:52,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116094411] [2024-11-20 21:50:52,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:52,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:52,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:52,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:52,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116094411] [2024-11-20 21:50:52,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116094411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:52,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:52,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:52,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607171700] [2024-11-20 21:50:52,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:52,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:52,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:52,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:52,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:52,620 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 38 [2024-11-20 21:50:52,621 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) [2024-11-20 21:50:52,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:52,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 38 [2024-11-20 21:50:52,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:53,229 INFO L124 PetriNetUnfolderBase]: 887/1600 cut-off events. [2024-11-20 21:50:53,229 INFO L125 PetriNetUnfolderBase]: For 3008/3008 co-relation queries the response was YES. [2024-11-20 21:50:53,236 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. [2024-11-20 21:50:53,243 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 123 selfloop transitions, 33 changer transitions 0/156 dead transitions. [2024-11-20 21:50:53,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 156 transitions, 1170 flow [2024-11-20 21:50:53,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 21:50:53,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 21:50:53,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 171 transitions. [2024-11-20 21:50:53,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.375 [2024-11-20 21:50:53,245 INFO L175 Difference]: Start difference. First operand has 99 places, 75 transitions, 594 flow. Second operand 12 states and 171 transitions. [2024-11-20 21:50:53,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 156 transitions, 1170 flow [2024-11-20 21:50:53,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 156 transitions, 1134 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-20 21:50:53,262 INFO L231 Difference]: Finished difference. Result has 110 places, 81 transitions, 694 flow [2024-11-20 21:50:53,263 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} [2024-11-20 21:50:53,263 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 71 predicate places. [2024-11-20 21:50:53,263 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 81 transitions, 694 flow [2024-11-20 21:50:53,264 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) [2024-11-20 21:50:53,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:53,264 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:53,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 21:50:53,264 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:53,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:53,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1276771083, now seen corresponding path program 5 times [2024-11-20 21:50:53,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:53,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110591032] [2024-11-20 21:50:53,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:53,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:53,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:53,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:53,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110591032] [2024-11-20 21:50:53,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110591032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:53,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:53,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:53,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220717526] [2024-11-20 21:50:53,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:53,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:53,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:53,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:53,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:53,688 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 38 [2024-11-20 21:50:53,688 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) [2024-11-20 21:50:53,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:53,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 38 [2024-11-20 21:50:53,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:54,189 INFO L124 PetriNetUnfolderBase]: 780/1493 cut-off events. [2024-11-20 21:50:54,190 INFO L125 PetriNetUnfolderBase]: For 3878/3878 co-relation queries the response was YES. [2024-11-20 21:50:54,195 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. [2024-11-20 21:50:54,202 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 104 selfloop transitions, 24 changer transitions 0/135 dead transitions. [2024-11-20 21:50:54,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 135 transitions, 1122 flow [2024-11-20 21:50:54,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 21:50:54,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 21:50:54,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 137 transitions. [2024-11-20 21:50:54,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40058479532163743 [2024-11-20 21:50:54,207 INFO L175 Difference]: Start difference. First operand has 110 places, 81 transitions, 694 flow. Second operand 9 states and 137 transitions. [2024-11-20 21:50:54,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 135 transitions, 1122 flow [2024-11-20 21:50:54,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 135 transitions, 1076 flow, removed 8 selfloop flow, removed 8 redundant places. [2024-11-20 21:50:54,225 INFO L231 Difference]: Finished difference. Result has 112 places, 83 transitions, 753 flow [2024-11-20 21:50:54,225 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} [2024-11-20 21:50:54,225 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 73 predicate places. [2024-11-20 21:50:54,225 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 83 transitions, 753 flow [2024-11-20 21:50:54,226 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) [2024-11-20 21:50:54,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:54,226 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:54,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 21:50:54,226 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:54,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:54,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1268182914, now seen corresponding path program 1 times [2024-11-20 21:50:54,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:54,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407408792] [2024-11-20 21:50:54,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:54,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:54,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:54,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407408792] [2024-11-20 21:50:54,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407408792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:54,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:54,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:54,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026816201] [2024-11-20 21:50:54,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:54,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:54,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:54,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:54,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:54,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 38 [2024-11-20 21:50:54,556 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) [2024-11-20 21:50:54,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:54,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 38 [2024-11-20 21:50:54,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:55,188 INFO L124 PetriNetUnfolderBase]: 941/1700 cut-off events. [2024-11-20 21:50:55,188 INFO L125 PetriNetUnfolderBase]: For 3982/3982 co-relation queries the response was YES. [2024-11-20 21:50:55,194 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. [2024-11-20 21:50:55,203 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 123 selfloop transitions, 31 changer transitions 0/154 dead transitions. [2024-11-20 21:50:55,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 154 transitions, 1287 flow [2024-11-20 21:50:55,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 21:50:55,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 21:50:55,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 163 transitions. [2024-11-20 21:50:55,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3574561403508772 [2024-11-20 21:50:55,206 INFO L175 Difference]: Start difference. First operand has 112 places, 83 transitions, 753 flow. Second operand 12 states and 163 transitions. [2024-11-20 21:50:55,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 154 transitions, 1287 flow [2024-11-20 21:50:55,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 154 transitions, 1254 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-20 21:50:55,224 INFO L231 Difference]: Finished difference. Result has 121 places, 86 transitions, 827 flow [2024-11-20 21:50:55,224 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} [2024-11-20 21:50:55,225 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 82 predicate places. [2024-11-20 21:50:55,225 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 86 transitions, 827 flow [2024-11-20 21:50:55,225 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) [2024-11-20 21:50:55,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:55,226 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:55,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 21:50:55,226 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:55,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:55,226 INFO L85 PathProgramCache]: Analyzing trace with hash -670616540, now seen corresponding path program 2 times [2024-11-20 21:50:55,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:55,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699162189] [2024-11-20 21:50:55,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:55,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:55,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:55,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:55,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699162189] [2024-11-20 21:50:55,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699162189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:55,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:55,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:55,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136546548] [2024-11-20 21:50:55,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:55,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:55,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:55,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:55,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:55,535 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 38 [2024-11-20 21:50:55,535 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) [2024-11-20 21:50:55,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:55,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 38 [2024-11-20 21:50:55,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:56,039 INFO L124 PetriNetUnfolderBase]: 921/1737 cut-off events. [2024-11-20 21:50:56,040 INFO L125 PetriNetUnfolderBase]: For 4714/4718 co-relation queries the response was YES. [2024-11-20 21:50:56,047 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. [2024-11-20 21:50:56,053 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 105 selfloop transitions, 26 changer transitions 0/137 dead transitions. [2024-11-20 21:50:56,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 137 transitions, 1259 flow [2024-11-20 21:50:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 21:50:56,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 21:50:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 137 transitions. [2024-11-20 21:50:56,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3605263157894737 [2024-11-20 21:50:56,055 INFO L175 Difference]: Start difference. First operand has 121 places, 86 transitions, 827 flow. Second operand 10 states and 137 transitions. [2024-11-20 21:50:56,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 137 transitions, 1259 flow [2024-11-20 21:50:56,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 137 transitions, 1167 flow, removed 10 selfloop flow, removed 10 redundant places. [2024-11-20 21:50:56,072 INFO L231 Difference]: Finished difference. Result has 123 places, 90 transitions, 834 flow [2024-11-20 21:50:56,073 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} [2024-11-20 21:50:56,073 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 84 predicate places. [2024-11-20 21:50:56,073 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 90 transitions, 834 flow [2024-11-20 21:50:56,074 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) [2024-11-20 21:50:56,074 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:56,074 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:56,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 21:50:56,074 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:56,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:56,075 INFO L85 PathProgramCache]: Analyzing trace with hash -817303580, now seen corresponding path program 3 times [2024-11-20 21:50:56,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:56,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820387883] [2024-11-20 21:50:56,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:56,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:56,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:56,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:56,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820387883] [2024-11-20 21:50:56,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820387883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:56,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:56,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:56,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109738207] [2024-11-20 21:50:56,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:56,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:56,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:56,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:56,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:56,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 38 [2024-11-20 21:50:56,419 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) [2024-11-20 21:50:56,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:56,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 38 [2024-11-20 21:50:56,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:56,931 INFO L124 PetriNetUnfolderBase]: 977/1853 cut-off events. [2024-11-20 21:50:56,932 INFO L125 PetriNetUnfolderBase]: For 4790/4790 co-relation queries the response was YES. [2024-11-20 21:50:56,939 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. [2024-11-20 21:50:56,945 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 94 selfloop transitions, 36 changer transitions 0/136 dead transitions. [2024-11-20 21:50:56,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 136 transitions, 1242 flow [2024-11-20 21:50:56,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 21:50:56,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 21:50:56,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 126 transitions. [2024-11-20 21:50:56,947 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3684210526315789 [2024-11-20 21:50:56,947 INFO L175 Difference]: Start difference. First operand has 123 places, 90 transitions, 834 flow. Second operand 9 states and 126 transitions. [2024-11-20 21:50:56,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 136 transitions, 1242 flow [2024-11-20 21:50:56,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 136 transitions, 1207 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-20 21:50:56,965 INFO L231 Difference]: Finished difference. Result has 132 places, 92 transitions, 911 flow [2024-11-20 21:50:56,965 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} [2024-11-20 21:50:56,966 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 93 predicate places. [2024-11-20 21:50:56,966 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 92 transitions, 911 flow [2024-11-20 21:50:56,966 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) [2024-11-20 21:50:56,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:56,967 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:56,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 21:50:56,967 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:56,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:56,968 INFO L85 PathProgramCache]: Analyzing trace with hash -814507070, now seen corresponding path program 4 times [2024-11-20 21:50:56,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:56,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320936873] [2024-11-20 21:50:56,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:56,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:57,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:57,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:57,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320936873] [2024-11-20 21:50:57,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320936873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:57,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:57,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 21:50:57,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860088646] [2024-11-20 21:50:57,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:57,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 21:50:57,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:57,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 21:50:57,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:50:57,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 38 [2024-11-20 21:50:57,314 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) [2024-11-20 21:50:57,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:57,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 38 [2024-11-20 21:50:57,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:57,812 INFO L124 PetriNetUnfolderBase]: 960/1824 cut-off events. [2024-11-20 21:50:57,812 INFO L125 PetriNetUnfolderBase]: For 5218/5218 co-relation queries the response was YES. [2024-11-20 21:50:57,820 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. [2024-11-20 21:50:57,826 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 93 selfloop transitions, 36 changer transitions 0/135 dead transitions. [2024-11-20 21:50:57,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 135 transitions, 1283 flow [2024-11-20 21:50:57,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 21:50:57,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 21:50:57,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 125 transitions. [2024-11-20 21:50:57,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3654970760233918 [2024-11-20 21:50:57,828 INFO L175 Difference]: Start difference. First operand has 132 places, 92 transitions, 911 flow. Second operand 9 states and 125 transitions. [2024-11-20 21:50:57,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 135 transitions, 1283 flow [2024-11-20 21:50:57,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 135 transitions, 1191 flow, removed 6 selfloop flow, removed 10 redundant places. [2024-11-20 21:50:57,846 INFO L231 Difference]: Finished difference. Result has 129 places, 91 transitions, 879 flow [2024-11-20 21:50:57,846 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} [2024-11-20 21:50:57,847 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 90 predicate places. [2024-11-20 21:50:57,847 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 91 transitions, 879 flow [2024-11-20 21:50:57,847 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) [2024-11-20 21:50:57,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:57,848 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:57,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 21:50:57,848 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:57,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:57,849 INFO L85 PathProgramCache]: Analyzing trace with hash 873129159, now seen corresponding path program 1 times [2024-11-20 21:50:57,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:57,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897292265] [2024-11-20 21:50:57,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:57,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:58,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:58,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:58,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897292265] [2024-11-20 21:50:58,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897292265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:58,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:58,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:50:58,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335915464] [2024-11-20 21:50:58,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:58,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:50:58,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:58,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:50:58,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:50:58,292 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-11-20 21:50:58,292 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) [2024-11-20 21:50:58,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:58,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-11-20 21:50:58,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:58,741 INFO L124 PetriNetUnfolderBase]: 775/1588 cut-off events. [2024-11-20 21:50:58,741 INFO L125 PetriNetUnfolderBase]: For 4574/4574 co-relation queries the response was YES. [2024-11-20 21:50:58,746 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. [2024-11-20 21:50:58,750 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 59 selfloop transitions, 23 changer transitions 38/130 dead transitions. [2024-11-20 21:50:58,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 130 transitions, 1197 flow [2024-11-20 21:50:58,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 21:50:58,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 21:50:58,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 157 transitions. [2024-11-20 21:50:58,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3442982456140351 [2024-11-20 21:50:58,752 INFO L175 Difference]: Start difference. First operand has 129 places, 91 transitions, 879 flow. Second operand 12 states and 157 transitions. [2024-11-20 21:50:58,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 130 transitions, 1197 flow [2024-11-20 21:50:58,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 130 transitions, 1063 flow, removed 5 selfloop flow, removed 13 redundant places. [2024-11-20 21:50:58,766 INFO L231 Difference]: Finished difference. Result has 126 places, 73 transitions, 632 flow [2024-11-20 21:50:58,766 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} [2024-11-20 21:50:58,767 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 87 predicate places. [2024-11-20 21:50:58,767 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 73 transitions, 632 flow [2024-11-20 21:50:58,767 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) [2024-11-20 21:50:58,767 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:58,768 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:58,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 21:50:58,768 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:58,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:58,768 INFO L85 PathProgramCache]: Analyzing trace with hash -2128633757, now seen corresponding path program 2 times [2024-11-20 21:50:58,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:58,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954736395] [2024-11-20 21:50:58,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:58,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:59,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:59,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:59,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954736395] [2024-11-20 21:50:59,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954736395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:59,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:59,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:50:59,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111380335] [2024-11-20 21:50:59,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:59,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:50:59,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:59,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:50:59,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:50:59,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-11-20 21:50:59,163 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) [2024-11-20 21:50:59,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:50:59,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-11-20 21:50:59,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:50:59,583 INFO L124 PetriNetUnfolderBase]: 565/1142 cut-off events. [2024-11-20 21:50:59,583 INFO L125 PetriNetUnfolderBase]: For 2310/2310 co-relation queries the response was YES. [2024-11-20 21:50:59,586 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. [2024-11-20 21:50:59,590 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 60 selfloop transitions, 22 changer transitions 25/115 dead transitions. [2024-11-20 21:50:59,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 115 transitions, 948 flow [2024-11-20 21:50:59,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 21:50:59,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 21:50:59,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 168 transitions. [2024-11-20 21:50:59,591 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.340080971659919 [2024-11-20 21:50:59,592 INFO L175 Difference]: Start difference. First operand has 126 places, 73 transitions, 632 flow. Second operand 13 states and 168 transitions. [2024-11-20 21:50:59,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 115 transitions, 948 flow [2024-11-20 21:50:59,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 115 transitions, 863 flow, removed 2 selfloop flow, removed 14 redundant places. [2024-11-20 21:50:59,598 INFO L231 Difference]: Finished difference. Result has 110 places, 66 transitions, 535 flow [2024-11-20 21:50:59,599 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} [2024-11-20 21:50:59,599 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 71 predicate places. [2024-11-20 21:50:59,599 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 66 transitions, 535 flow [2024-11-20 21:50:59,599 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) [2024-11-20 21:50:59,600 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:50:59,600 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:50:59,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 21:50:59,600 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:50:59,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:50:59,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1900100309, now seen corresponding path program 1 times [2024-11-20 21:50:59,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:50:59,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121877486] [2024-11-20 21:50:59,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:50:59,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:50:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:50:59,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:50:59,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:50:59,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121877486] [2024-11-20 21:50:59,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121877486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:50:59,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:50:59,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:50:59,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850135967] [2024-11-20 21:50:59,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:50:59,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:50:59,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:50:59,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:50:59,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:51:00,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-11-20 21:51:00,013 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) [2024-11-20 21:51:00,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:51:00,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-11-20 21:51:00,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:51:00,385 INFO L124 PetriNetUnfolderBase]: 487/986 cut-off events. [2024-11-20 21:51:00,386 INFO L125 PetriNetUnfolderBase]: For 1787/1787 co-relation queries the response was YES. [2024-11-20 21:51:00,389 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. [2024-11-20 21:51:00,391 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 48 selfloop transitions, 14 changer transitions 35/103 dead transitions. [2024-11-20 21:51:00,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 103 transitions, 821 flow [2024-11-20 21:51:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 21:51:00,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 21:51:00,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 159 transitions. [2024-11-20 21:51:00,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32186234817813764 [2024-11-20 21:51:00,393 INFO L175 Difference]: Start difference. First operand has 110 places, 66 transitions, 535 flow. Second operand 13 states and 159 transitions. [2024-11-20 21:51:00,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 103 transitions, 821 flow [2024-11-20 21:51:00,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 103 transitions, 772 flow, removed 1 selfloop flow, removed 10 redundant places. [2024-11-20 21:51:00,399 INFO L231 Difference]: Finished difference. Result has 108 places, 54 transitions, 408 flow [2024-11-20 21:51:00,399 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} [2024-11-20 21:51:00,400 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 69 predicate places. [2024-11-20 21:51:00,400 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 54 transitions, 408 flow [2024-11-20 21:51:00,400 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) [2024-11-20 21:51:00,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:51:00,400 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:51:00,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 21:51:00,401 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:51:00,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:51:00,401 INFO L85 PathProgramCache]: Analyzing trace with hash 925198435, now seen corresponding path program 3 times [2024-11-20 21:51:00,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:51:00,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772527774] [2024-11-20 21:51:00,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:51:00,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:51:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:51:00,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:51:00,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:51:00,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772527774] [2024-11-20 21:51:00,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772527774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:51:00,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:51:00,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:51:00,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975579077] [2024-11-20 21:51:00,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:51:00,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:51:00,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:51:00,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:51:00,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:51:00,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-11-20 21:51:00,776 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) [2024-11-20 21:51:00,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:51:00,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-11-20 21:51:00,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:51:01,164 INFO L124 PetriNetUnfolderBase]: 381/782 cut-off events. [2024-11-20 21:51:01,164 INFO L125 PetriNetUnfolderBase]: For 1359/1359 co-relation queries the response was YES. [2024-11-20 21:51:01,166 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. [2024-11-20 21:51:01,168 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 38 selfloop transitions, 19 changer transitions 24/86 dead transitions. [2024-11-20 21:51:01,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 86 transitions, 653 flow [2024-11-20 21:51:01,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 21:51:01,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 21:51:01,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 156 transitions. [2024-11-20 21:51:01,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2932330827067669 [2024-11-20 21:51:01,170 INFO L175 Difference]: Start difference. First operand has 108 places, 54 transitions, 408 flow. Second operand 14 states and 156 transitions. [2024-11-20 21:51:01,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 86 transitions, 653 flow [2024-11-20 21:51:01,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 86 transitions, 536 flow, removed 3 selfloop flow, removed 22 redundant places. [2024-11-20 21:51:01,176 INFO L231 Difference]: Finished difference. Result has 85 places, 44 transitions, 278 flow [2024-11-20 21:51:01,176 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} [2024-11-20 21:51:01,177 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 46 predicate places. [2024-11-20 21:51:01,177 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 44 transitions, 278 flow [2024-11-20 21:51:01,177 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) [2024-11-20 21:51:01,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:51:01,178 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:51:01,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 21:51:01,178 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:51:01,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:51:01,178 INFO L85 PathProgramCache]: Analyzing trace with hash 658965205, now seen corresponding path program 2 times [2024-11-20 21:51:01,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:51:01,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597294583] [2024-11-20 21:51:01,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:51:01,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:51:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:51:01,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:51:01,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:51:01,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597294583] [2024-11-20 21:51:01,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597294583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:51:01,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:51:01,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:51:01,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509728021] [2024-11-20 21:51:01,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:51:01,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:51:01,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:51:01,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:51:01,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:51:01,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-11-20 21:51:01,553 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) [2024-11-20 21:51:01,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:51:01,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-11-20 21:51:01,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:51:01,765 INFO L124 PetriNetUnfolderBase]: 303/620 cut-off events. [2024-11-20 21:51:01,765 INFO L125 PetriNetUnfolderBase]: For 853/853 co-relation queries the response was YES. [2024-11-20 21:51:01,766 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. [2024-11-20 21:51:01,767 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 30 selfloop transitions, 12 changer transitions 28/73 dead transitions. [2024-11-20 21:51:01,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 73 transitions, 490 flow [2024-11-20 21:51:01,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 21:51:01,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 21:51:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 134 transitions. [2024-11-20 21:51:01,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.29385964912280704 [2024-11-20 21:51:01,769 INFO L175 Difference]: Start difference. First operand has 85 places, 44 transitions, 278 flow. Second operand 12 states and 134 transitions. [2024-11-20 21:51:01,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 73 transitions, 490 flow [2024-11-20 21:51:01,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 73 transitions, 452 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-11-20 21:51:01,771 INFO L231 Difference]: Finished difference. Result has 70 places, 34 transitions, 198 flow [2024-11-20 21:51:01,772 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} [2024-11-20 21:51:01,772 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 31 predicate places. [2024-11-20 21:51:01,772 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 34 transitions, 198 flow [2024-11-20 21:51:01,772 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) [2024-11-20 21:51:01,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:51:01,773 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:51:01,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 21:51:01,773 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:51:01,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:51:01,774 INFO L85 PathProgramCache]: Analyzing trace with hash 520085141, now seen corresponding path program 3 times [2024-11-20 21:51:01,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:51:01,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495414511] [2024-11-20 21:51:01,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:51:01,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:51:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:51:02,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:51:02,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:51:02,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495414511] [2024-11-20 21:51:02,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495414511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:51:02,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:51:02,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:51:02,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900221793] [2024-11-20 21:51:02,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:51:02,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:51:02,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:51:02,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:51:02,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:51:02,167 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-11-20 21:51:02,167 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) [2024-11-20 21:51:02,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:51:02,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-11-20 21:51:02,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:51:02,448 INFO L124 PetriNetUnfolderBase]: 192/405 cut-off events. [2024-11-20 21:51:02,448 INFO L125 PetriNetUnfolderBase]: For 618/618 co-relation queries the response was YES. [2024-11-20 21:51:02,448 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. [2024-11-20 21:51:02,449 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 22 selfloop transitions, 9 changer transitions 22/55 dead transitions. [2024-11-20 21:51:02,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 55 transitions, 352 flow [2024-11-20 21:51:02,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 21:51:02,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-20 21:51:02,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 116 transitions. [2024-11-20 21:51:02,450 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.27751196172248804 [2024-11-20 21:51:02,451 INFO L175 Difference]: Start difference. First operand has 70 places, 34 transitions, 198 flow. Second operand 11 states and 116 transitions. [2024-11-20 21:51:02,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 55 transitions, 352 flow [2024-11-20 21:51:02,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 303 flow, removed 6 selfloop flow, removed 11 redundant places. [2024-11-20 21:51:02,453 INFO L231 Difference]: Finished difference. Result has 59 places, 25 transitions, 119 flow [2024-11-20 21:51:02,453 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} [2024-11-20 21:51:02,453 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 20 predicate places. [2024-11-20 21:51:02,453 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 25 transitions, 119 flow [2024-11-20 21:51:02,454 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) [2024-11-20 21:51:02,454 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:51:02,454 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 21:51:02,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 21:51:02,454 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-11-20 21:51:02,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:51:02,455 INFO L85 PathProgramCache]: Analyzing trace with hash 433393331, now seen corresponding path program 4 times [2024-11-20 21:51:02,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:51:02,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855893579] [2024-11-20 21:51:02,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:51:02,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:51:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:51:02,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:51:02,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:51:02,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855893579] [2024-11-20 21:51:02,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855893579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:51:02,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:51:02,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 21:51:02,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688761762] [2024-11-20 21:51:02,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:51:02,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 21:51:02,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:51:02,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 21:51:02,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-20 21:51:02,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-11-20 21:51:02,929 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) [2024-11-20 21:51:02,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:51:02,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-11-20 21:51:02,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:51:03,096 INFO L124 PetriNetUnfolderBase]: 69/154 cut-off events. [2024-11-20 21:51:03,096 INFO L125 PetriNetUnfolderBase]: For 160/160 co-relation queries the response was YES. [2024-11-20 21:51:03,096 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. [2024-11-20 21:51:03,096 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2024-11-20 21:51:03,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 42 transitions, 236 flow [2024-11-20 21:51:03,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 21:51:03,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-20 21:51:03,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 107 transitions. [2024-11-20 21:51:03,097 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.25598086124401914 [2024-11-20 21:51:03,097 INFO L175 Difference]: Start difference. First operand has 59 places, 25 transitions, 119 flow. Second operand 11 states and 107 transitions. [2024-11-20 21:51:03,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 42 transitions, 236 flow [2024-11-20 21:51:03,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 42 transitions, 199 flow, removed 0 selfloop flow, removed 14 redundant places. [2024-11-20 21:51:03,098 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2024-11-20 21:51:03,099 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} [2024-11-20 21:51:03,099 INFO L277 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2024-11-20 21:51:03,099 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2024-11-20 21:51:03,099 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) [2024-11-20 21:51:03,102 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-20 21:51:03,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2024-11-20 21:51:03,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-20 21:51:03,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-20 21:51:03,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-20 21:51:03,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-20 21:51:03,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-20 21:51:03,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-20 21:51:03,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 21:51:03,104 INFO L407 BasicCegarLoop]: Path program histogram: [5, 4, 4, 3, 3, 2, 1, 1, 1] [2024-11-20 21:51:03,109 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 21:51:03,110 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 21:51:03,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:51:03 BasicIcfg [2024-11-20 21:51:03,115 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 21:51:03,116 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 21:51:03,116 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 21:51:03,116 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 21:51:03,116 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:50:41" (3/4) ... [2024-11-20 21:51:03,118 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 21:51:03,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2024-11-20 21:51:03,130 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 122 nodes and edges [2024-11-20 21:51:03,131 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2024-11-20 21:51:03,131 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-20 21:51:03,132 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-20 21:51:03,224 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 21:51:03,224 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 21:51:03,225 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 21:51:03,225 INFO L158 Benchmark]: Toolchain (without parser) took 23923.63ms. Allocated memory was 146.8MB in the beginning and 650.1MB in the end (delta: 503.3MB). Free memory was 89.0MB in the beginning and 483.6MB in the end (delta: -394.6MB). Peak memory consumption was 113.6MB. Max. memory is 16.1GB. [2024-11-20 21:51:03,226 INFO L158 Benchmark]: CDTParser took 1.11ms. Allocated memory is still 146.8MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 21:51:03,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 756.77ms. Allocated memory is still 146.8MB. Free memory was 89.0MB in the beginning and 108.9MB in the end (delta: -19.9MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2024-11-20 21:51:03,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.87ms. Allocated memory is still 146.8MB. Free memory was 108.9MB in the beginning and 106.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 21:51:03,226 INFO L158 Benchmark]: Boogie Preprocessor took 72.24ms. Allocated memory is still 146.8MB. Free memory was 106.2MB in the beginning and 102.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 21:51:03,227 INFO L158 Benchmark]: RCFGBuilder took 853.04ms. Allocated memory is still 146.8MB. Free memory was 102.6MB in the beginning and 51.6MB in the end (delta: 51.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-20 21:51:03,227 INFO L158 Benchmark]: TraceAbstraction took 22034.82ms. Allocated memory was 146.8MB in the beginning and 650.1MB in the end (delta: 503.3MB). Free memory was 50.9MB in the beginning and 489.9MB in the end (delta: -439.0MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-20 21:51:03,227 INFO L158 Benchmark]: Witness Printer took 109.02ms. Allocated memory is still 650.1MB. Free memory was 489.9MB in the beginning and 483.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 21:51:03,229 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11ms. Allocated memory is still 146.8MB. Free memory is still 108.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 756.77ms. Allocated memory is still 146.8MB. Free memory was 89.0MB in the beginning and 108.9MB in the end (delta: -19.9MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.87ms. Allocated memory is still 146.8MB. Free memory was 108.9MB in the beginning and 106.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.24ms. Allocated memory is still 146.8MB. Free memory was 106.2MB in the beginning and 102.6MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 853.04ms. Allocated memory is still 146.8MB. Free memory was 102.6MB in the beginning and 51.6MB in the end (delta: 51.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 22034.82ms. Allocated memory was 146.8MB in the beginning and 650.1MB in the end (delta: 503.3MB). Free memory was 50.9MB in the beginning and 489.9MB in the end (delta: -439.0MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Witness Printer took 109.02ms. Allocated memory is still 650.1MB. Free memory was 489.9MB in the beginning and 483.6MB in the end (delta: 6.3MB). 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: 21.9s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2014 SdHoareTripleChecker+Valid, 6.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1892 mSDsluCounter, 1357 SdHoareTripleChecker+Invalid, 5.2s 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, 3.0s 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, 8.6s 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! [2024-11-20 21:51:03,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE