./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-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d 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-2_4-container_of.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 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:38:20,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:38:20,906 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 16:38:20,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:38:20,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:38:20,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:38:20,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:38:20,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:38:20,933 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:38:20,934 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:38:20,934 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 16:38:20,934 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 16:38:20,935 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:38:20,935 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:38:20,936 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:38:20,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:38:20,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 16:38:20,937 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 16:38:20,937 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:38:20,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 16:38:20,938 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:38:20,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 16:38:20,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 16:38:20,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 16:38:20,940 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:38:20,940 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 16:38:20,941 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:38:20,941 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 16:38:20,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:38:20,942 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:38:20,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:38:20,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:38:20,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 16:38:20,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 16:38:20,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:38:20,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:38:20,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 16:38:20,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 16:38:20,945 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:38:20,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 16:38:20,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 16:38:20,946 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 16:38:20,946 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 16:38:20,947 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 16:38:20,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2024-10-13 16:38:21,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:38:21,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:38:21,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:38:21,266 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:38:21,267 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:38:21,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-10-13 16:38:22,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:38:23,153 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:38:23,154 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2024-10-13 16:38:23,189 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87104050f/2b9e7dd1630b499da57b7574df5fac71/FLAGc0bc98330 [2024-10-13 16:38:23,412 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87104050f/2b9e7dd1630b499da57b7574df5fac71 [2024-10-13 16:38:23,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:38:23,417 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:38:23,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:38:23,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:38:23,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:38:23,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:38:23" (1/1) ... [2024-10-13 16:38:23,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d2f408a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:23, skipping insertion in model container [2024-10-13 16:38:23,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:38:23" (1/1) ... [2024-10-13 16:38:23,494 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:38:24,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:38:24,091 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:38:24,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:38:24,227 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:38:24,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24 WrapperNode [2024-10-13 16:38:24,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:38:24,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:38:24,229 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:38:24,230 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:38:24,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24" (1/1) ... [2024-10-13 16:38:24,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24" (1/1) ... [2024-10-13 16:38:24,302 INFO L138 Inliner]: procedures = 248, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 154 [2024-10-13 16:38:24,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:38:24,307 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:38:24,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:38:24,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:38:24,318 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24" (1/1) ... [2024-10-13 16:38:24,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24" (1/1) ... [2024-10-13 16:38:24,325 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24" (1/1) ... [2024-10-13 16:38:24,355 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 2, 15]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 2, 8]. [2024-10-13 16:38:24,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24" (1/1) ... [2024-10-13 16:38:24,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24" (1/1) ... [2024-10-13 16:38:24,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24" (1/1) ... [2024-10-13 16:38:24,370 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24" (1/1) ... [2024-10-13 16:38:24,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24" (1/1) ... [2024-10-13 16:38:24,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24" (1/1) ... [2024-10-13 16:38:24,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:38:24,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:38:24,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:38:24,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:38:24,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24" (1/1) ... [2024-10-13 16:38:24,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:38:24,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:38:24,437 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) [2024-10-13 16:38:24,444 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 [2024-10-13 16:38:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2024-10-13 16:38:24,499 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2024-10-13 16:38:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 16:38:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 16:38:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 16:38:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 16:38:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 16:38:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 16:38:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 16:38:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 16:38:24,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 16:38:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 16:38:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 16:38:24,501 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 16:38:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 16:38:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 16:38:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 16:38:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 16:38:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 16:38:24,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 16:38:24,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 16:38:24,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:38:24,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:38:24,508 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 16:38:24,779 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:38:24,782 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:38:25,107 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 16:38:25,107 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:38:25,412 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:38:25,414 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 16:38:25,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:38:25 BoogieIcfgContainer [2024-10-13 16:38:25,415 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:38:25,417 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 16:38:25,418 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 16:38:25,421 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 16:38:25,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:38:23" (1/3) ... [2024-10-13 16:38:25,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ae37d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:38:25, skipping insertion in model container [2024-10-13 16:38:25,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:38:24" (2/3) ... [2024-10-13 16:38:25,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ae37d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:38:25, skipping insertion in model container [2024-10-13 16:38:25,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:38:25" (3/3) ... [2024-10-13 16:38:25,425 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2024-10-13 16:38:25,444 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 16:38:25,445 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 16:38:25,445 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 16:38:25,496 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 16:38:25,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 44 transitions, 102 flow [2024-10-13 16:38:25,576 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-13 16:38:25,577 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 16:38:25,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 51 events. 2/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 120 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2024-10-13 16:38:25,579 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 44 transitions, 102 flow [2024-10-13 16:38:25,584 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 38 transitions, 85 flow [2024-10-13 16:38:25,597 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:38:25,606 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;@6f6e448, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:38:25,607 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-13 16:38:25,617 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:38:25,617 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-10-13 16:38:25,618 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:38:25,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:25,619 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:25,619 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:25,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:25,625 INFO L85 PathProgramCache]: Analyzing trace with hash -85911709, now seen corresponding path program 1 times [2024-10-13 16:38:25,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:25,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233603190] [2024-10-13 16:38:25,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:25,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:26,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:26,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:26,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233603190] [2024-10-13 16:38:26,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233603190] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:26,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:26,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 16:38:26,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351691019] [2024-10-13 16:38:26,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:26,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:38:26,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:26,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:38:26,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:38:26,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:38:26,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:26,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:26,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:38:26,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:27,637 INFO L124 PetriNetUnfolderBase]: 2221/3630 cut-off events. [2024-10-13 16:38:27,637 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-10-13 16:38:27,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7280 conditions, 3630 events. 2221/3630 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 20052 event pairs, 1170 based on Foata normal form. 0/3166 useless extension candidates. Maximal degree in co-relation 7188. Up to 2402 conditions per place. [2024-10-13 16:38:27,663 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 85 selfloop transitions, 24 changer transitions 3/115 dead transitions. [2024-10-13 16:38:27,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 115 transitions, 478 flow [2024-10-13 16:38:27,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 16:38:27,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 16:38:27,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 176 transitions. [2024-10-13 16:38:27,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-10-13 16:38:27,681 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 85 flow. Second operand 10 states and 176 transitions. [2024-10-13 16:38:27,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 115 transitions, 478 flow [2024-10-13 16:38:27,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 115 transitions, 467 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:38:27,696 INFO L231 Difference]: Finished difference. Result has 56 places, 63 transitions, 233 flow [2024-10-13 16:38:27,699 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=233, PETRI_PLACES=56, PETRI_TRANSITIONS=63} [2024-10-13 16:38:27,705 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 11 predicate places. [2024-10-13 16:38:27,706 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 63 transitions, 233 flow [2024-10-13 16:38:27,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:27,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:27,707 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:27,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 16:38:27,708 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:27,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:27,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1647241241, now seen corresponding path program 1 times [2024-10-13 16:38:27,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:27,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901619610] [2024-10-13 16:38:27,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:27,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:28,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:28,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:28,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901619610] [2024-10-13 16:38:28,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901619610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:28,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:28,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 16:38:28,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10130736] [2024-10-13 16:38:28,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:28,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:38:28,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:28,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:38:28,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:38:28,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:38:28,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 63 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:28,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:28,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:38:28,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:28,883 INFO L124 PetriNetUnfolderBase]: 2697/4445 cut-off events. [2024-10-13 16:38:28,884 INFO L125 PetriNetUnfolderBase]: For 1572/1574 co-relation queries the response was YES. [2024-10-13 16:38:28,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10778 conditions, 4445 events. 2697/4445 cut-off events. For 1572/1574 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 26189 event pairs, 1670 based on Foata normal form. 2/4055 useless extension candidates. Maximal degree in co-relation 9198. Up to 3258 conditions per place. [2024-10-13 16:38:28,910 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 90 selfloop transitions, 33 changer transitions 5/131 dead transitions. [2024-10-13 16:38:28,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 131 transitions, 711 flow [2024-10-13 16:38:28,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 16:38:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 16:38:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 173 transitions. [2024-10-13 16:38:28,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3931818181818182 [2024-10-13 16:38:28,913 INFO L175 Difference]: Start difference. First operand has 56 places, 63 transitions, 233 flow. Second operand 10 states and 173 transitions. [2024-10-13 16:38:28,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 131 transitions, 711 flow [2024-10-13 16:38:28,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 131 transitions, 709 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:38:28,924 INFO L231 Difference]: Finished difference. Result has 68 places, 83 transitions, 424 flow [2024-10-13 16:38:28,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=424, PETRI_PLACES=68, PETRI_TRANSITIONS=83} [2024-10-13 16:38:28,925 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 23 predicate places. [2024-10-13 16:38:28,926 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 83 transitions, 424 flow [2024-10-13 16:38:28,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:28,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:28,926 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:28,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 16:38:28,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:28,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:28,928 INFO L85 PathProgramCache]: Analyzing trace with hash 575639303, now seen corresponding path program 1 times [2024-10-13 16:38:28,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:28,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821176392] [2024-10-13 16:38:28,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:28,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:29,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:29,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:29,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821176392] [2024-10-13 16:38:29,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821176392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:29,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:29,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 16:38:29,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780228879] [2024-10-13 16:38:29,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:29,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 16:38:29,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:29,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 16:38:29,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:38:29,497 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:38:29,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 83 transitions, 424 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:29,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:29,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:38:29,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:30,448 INFO L124 PetriNetUnfolderBase]: 2901/4906 cut-off events. [2024-10-13 16:38:30,450 INFO L125 PetriNetUnfolderBase]: For 3743/3751 co-relation queries the response was YES. [2024-10-13 16:38:30,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13634 conditions, 4906 events. 2901/4906 cut-off events. For 3743/3751 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 30927 event pairs, 754 based on Foata normal form. 72/4702 useless extension candidates. Maximal degree in co-relation 12619. Up to 3792 conditions per place. [2024-10-13 16:38:30,483 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 171 selfloop transitions, 30 changer transitions 3/207 dead transitions. [2024-10-13 16:38:30,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 207 transitions, 1410 flow [2024-10-13 16:38:30,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 16:38:30,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 16:38:30,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 185 transitions. [2024-10-13 16:38:30,485 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42045454545454547 [2024-10-13 16:38:30,485 INFO L175 Difference]: Start difference. First operand has 68 places, 83 transitions, 424 flow. Second operand 10 states and 185 transitions. [2024-10-13 16:38:30,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 207 transitions, 1410 flow [2024-10-13 16:38:30,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 207 transitions, 1410 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:38:30,511 INFO L231 Difference]: Finished difference. Result has 84 places, 105 transitions, 653 flow [2024-10-13 16:38:30,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=653, PETRI_PLACES=84, PETRI_TRANSITIONS=105} [2024-10-13 16:38:30,513 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2024-10-13 16:38:30,513 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 105 transitions, 653 flow [2024-10-13 16:38:30,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:30,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:30,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:30,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 16:38:30,514 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:30,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:30,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1478388345, now seen corresponding path program 2 times [2024-10-13 16:38:30,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:30,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137794647] [2024-10-13 16:38:30,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:30,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:31,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:31,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:31,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137794647] [2024-10-13 16:38:31,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137794647] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:31,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:31,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 16:38:31,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274896597] [2024-10-13 16:38:31,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:31,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 16:38:31,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:31,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 16:38:31,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-13 16:38:31,221 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:38:31,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 105 transitions, 653 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:31,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:31,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:38:31,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:32,921 INFO L124 PetriNetUnfolderBase]: 3734/6225 cut-off events. [2024-10-13 16:38:32,922 INFO L125 PetriNetUnfolderBase]: For 7933/7941 co-relation queries the response was YES. [2024-10-13 16:38:32,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19648 conditions, 6225 events. 3734/6225 cut-off events. For 7933/7941 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 39320 event pairs, 1744 based on Foata normal form. 118/6017 useless extension candidates. Maximal degree in co-relation 18358. Up to 3418 conditions per place. [2024-10-13 16:38:33,081 INFO L140 encePairwiseOnDemand]: 29/44 looper letters, 149 selfloop transitions, 97 changer transitions 5/254 dead transitions. [2024-10-13 16:38:33,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 254 transitions, 2000 flow [2024-10-13 16:38:33,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-13 16:38:33,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-10-13 16:38:33,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 323 transitions. [2024-10-13 16:38:33,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33367768595041325 [2024-10-13 16:38:33,085 INFO L175 Difference]: Start difference. First operand has 84 places, 105 transitions, 653 flow. Second operand 22 states and 323 transitions. [2024-10-13 16:38:33,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 254 transitions, 2000 flow [2024-10-13 16:38:33,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 254 transitions, 1958 flow, removed 20 selfloop flow, removed 1 redundant places. [2024-10-13 16:38:33,117 INFO L231 Difference]: Finished difference. Result has 113 places, 156 transitions, 1320 flow [2024-10-13 16:38:33,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1320, PETRI_PLACES=113, PETRI_TRANSITIONS=156} [2024-10-13 16:38:33,119 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 68 predicate places. [2024-10-13 16:38:33,119 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 156 transitions, 1320 flow [2024-10-13 16:38:33,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:33,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:33,120 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:33,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 16:38:33,120 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:33,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:33,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1198305234, now seen corresponding path program 1 times [2024-10-13 16:38:33,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:33,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864317885] [2024-10-13 16:38:33,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:33,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:33,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:33,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:33,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864317885] [2024-10-13 16:38:33,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864317885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:33,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:33,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:38:33,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748632643] [2024-10-13 16:38:33,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:33,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:38:33,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:33,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:38:33,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:38:33,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 44 [2024-10-13 16:38:33,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 156 transitions, 1320 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:33,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:33,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 44 [2024-10-13 16:38:33,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:33,953 INFO L124 PetriNetUnfolderBase]: 2895/4821 cut-off events. [2024-10-13 16:38:33,953 INFO L125 PetriNetUnfolderBase]: For 10611/10614 co-relation queries the response was YES. [2024-10-13 16:38:33,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17612 conditions, 4821 events. 2895/4821 cut-off events. For 10611/10614 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 29777 event pairs, 810 based on Foata normal form. 1/4564 useless extension candidates. Maximal degree in co-relation 16659. Up to 3827 conditions per place. [2024-10-13 16:38:34,004 INFO L140 encePairwiseOnDemand]: 41/44 looper letters, 192 selfloop transitions, 21 changer transitions 0/215 dead transitions. [2024-10-13 16:38:34,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 215 transitions, 2197 flow [2024-10-13 16:38:34,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:38:34,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:38:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-10-13 16:38:34,006 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2024-10-13 16:38:34,006 INFO L175 Difference]: Start difference. First operand has 113 places, 156 transitions, 1320 flow. Second operand 4 states and 90 transitions. [2024-10-13 16:38:34,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 215 transitions, 2197 flow [2024-10-13 16:38:34,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 215 transitions, 2038 flow, removed 20 selfloop flow, removed 8 redundant places. [2024-10-13 16:38:34,044 INFO L231 Difference]: Finished difference. Result has 105 places, 136 transitions, 1074 flow [2024-10-13 16:38:34,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1074, PETRI_PLACES=105, PETRI_TRANSITIONS=136} [2024-10-13 16:38:34,045 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 60 predicate places. [2024-10-13 16:38:34,045 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 136 transitions, 1074 flow [2024-10-13 16:38:34,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:34,046 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:34,046 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:34,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 16:38:34,047 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:34,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:34,048 INFO L85 PathProgramCache]: Analyzing trace with hash 135074367, now seen corresponding path program 1 times [2024-10-13 16:38:34,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:34,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440559831] [2024-10-13 16:38:34,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:34,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:34,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:34,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:34,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440559831] [2024-10-13 16:38:34,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440559831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:34,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:34,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 16:38:34,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649111820] [2024-10-13 16:38:34,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:34,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 16:38:34,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:34,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 16:38:34,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:38:34,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:38:34,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 136 transitions, 1074 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:34,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:34,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:38:34,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:36,068 INFO L124 PetriNetUnfolderBase]: 3209/5366 cut-off events. [2024-10-13 16:38:36,068 INFO L125 PetriNetUnfolderBase]: For 12594/12602 co-relation queries the response was YES. [2024-10-13 16:38:36,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19637 conditions, 5366 events. 3209/5366 cut-off events. For 12594/12602 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 32275 event pairs, 1572 based on Foata normal form. 56/5148 useless extension candidates. Maximal degree in co-relation 18402. Up to 3576 conditions per place. [2024-10-13 16:38:36,147 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 157 selfloop transitions, 73 changer transitions 4/236 dead transitions. [2024-10-13 16:38:36,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 236 transitions, 2184 flow [2024-10-13 16:38:36,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 16:38:36,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-13 16:38:36,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 206 transitions. [2024-10-13 16:38:36,149 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36013986013986016 [2024-10-13 16:38:36,150 INFO L175 Difference]: Start difference. First operand has 105 places, 136 transitions, 1074 flow. Second operand 13 states and 206 transitions. [2024-10-13 16:38:36,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 236 transitions, 2184 flow [2024-10-13 16:38:36,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 236 transitions, 2144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:38:36,209 INFO L231 Difference]: Finished difference. Result has 121 places, 166 transitions, 1527 flow [2024-10-13 16:38:36,210 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1052, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1527, PETRI_PLACES=121, PETRI_TRANSITIONS=166} [2024-10-13 16:38:36,211 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 76 predicate places. [2024-10-13 16:38:36,211 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 166 transitions, 1527 flow [2024-10-13 16:38:36,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:36,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:36,212 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:36,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 16:38:36,212 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:36,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:36,213 INFO L85 PathProgramCache]: Analyzing trace with hash -781707630, now seen corresponding path program 1 times [2024-10-13 16:38:36,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:36,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624403455] [2024-10-13 16:38:36,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:36,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:36,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:36,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:36,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624403455] [2024-10-13 16:38:36,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624403455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:36,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:36,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 16:38:36,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725859227] [2024-10-13 16:38:36,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:36,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 16:38:36,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:36,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 16:38:36,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:38:36,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:38:36,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 166 transitions, 1527 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:36,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:36,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:38:36,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:38,067 INFO L124 PetriNetUnfolderBase]: 5584/9391 cut-off events. [2024-10-13 16:38:38,068 INFO L125 PetriNetUnfolderBase]: For 27158/27166 co-relation queries the response was YES. [2024-10-13 16:38:38,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38162 conditions, 9391 events. 5584/9391 cut-off events. For 27158/27166 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 64886 event pairs, 1541 based on Foata normal form. 60/8935 useless extension candidates. Maximal degree in co-relation 36263. Up to 4155 conditions per place. [2024-10-13 16:38:38,170 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 347 selfloop transitions, 53 changer transitions 3/405 dead transitions. [2024-10-13 16:38:38,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 405 transitions, 4388 flow [2024-10-13 16:38:38,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 16:38:38,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-13 16:38:38,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 227 transitions. [2024-10-13 16:38:38,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4690082644628099 [2024-10-13 16:38:38,173 INFO L175 Difference]: Start difference. First operand has 121 places, 166 transitions, 1527 flow. Second operand 11 states and 227 transitions. [2024-10-13 16:38:38,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 405 transitions, 4388 flow [2024-10-13 16:38:38,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 405 transitions, 4255 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-13 16:38:38,314 INFO L231 Difference]: Finished difference. Result has 131 places, 188 transitions, 1819 flow [2024-10-13 16:38:38,315 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1446, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1819, PETRI_PLACES=131, PETRI_TRANSITIONS=188} [2024-10-13 16:38:38,315 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 86 predicate places. [2024-10-13 16:38:38,316 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 188 transitions, 1819 flow [2024-10-13 16:38:38,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:38,316 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:38,316 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:38,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 16:38:38,317 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:38,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:38,317 INFO L85 PathProgramCache]: Analyzing trace with hash -59745134, now seen corresponding path program 2 times [2024-10-13 16:38:38,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:38,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896288660] [2024-10-13 16:38:38,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:38,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:38,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:38,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:38,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896288660] [2024-10-13 16:38:38,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896288660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:38,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:38,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 16:38:38,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240775393] [2024-10-13 16:38:38,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:38,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 16:38:38,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:38,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 16:38:38,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 16:38:38,746 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:38:38,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 188 transitions, 1819 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:38,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:38,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:38:38,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:40,584 INFO L124 PetriNetUnfolderBase]: 6270/10630 cut-off events. [2024-10-13 16:38:40,584 INFO L125 PetriNetUnfolderBase]: For 41098/41106 co-relation queries the response was YES. [2024-10-13 16:38:40,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45750 conditions, 10630 events. 6270/10630 cut-off events. For 41098/41106 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 74860 event pairs, 3397 based on Foata normal form. 96/10190 useless extension candidates. Maximal degree in co-relation 42412. Up to 7445 conditions per place. [2024-10-13 16:38:40,685 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 269 selfloop transitions, 128 changer transitions 9/408 dead transitions. [2024-10-13 16:38:40,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 408 transitions, 4689 flow [2024-10-13 16:38:40,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-13 16:38:40,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-13 16:38:40,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 296 transitions. [2024-10-13 16:38:40,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33636363636363636 [2024-10-13 16:38:40,688 INFO L175 Difference]: Start difference. First operand has 131 places, 188 transitions, 1819 flow. Second operand 20 states and 296 transitions. [2024-10-13 16:38:40,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 408 transitions, 4689 flow [2024-10-13 16:38:41,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 408 transitions, 4552 flow, removed 41 selfloop flow, removed 3 redundant places. [2024-10-13 16:38:41,136 INFO L231 Difference]: Finished difference. Result has 159 places, 282 transitions, 3359 flow [2024-10-13 16:38:41,137 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1748, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3359, PETRI_PLACES=159, PETRI_TRANSITIONS=282} [2024-10-13 16:38:41,140 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 114 predicate places. [2024-10-13 16:38:41,140 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 282 transitions, 3359 flow [2024-10-13 16:38:41,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:41,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:41,141 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:41,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 16:38:41,141 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:41,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:41,146 INFO L85 PathProgramCache]: Analyzing trace with hash -59745455, now seen corresponding path program 1 times [2024-10-13 16:38:41,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:41,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607660356] [2024-10-13 16:38:41,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:41,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:41,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:41,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:41,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607660356] [2024-10-13 16:38:41,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607660356] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:41,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:41,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 16:38:41,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058223228] [2024-10-13 16:38:41,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:41,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 16:38:41,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:41,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 16:38:41,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 16:38:41,569 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:38:41,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 282 transitions, 3359 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:41,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:41,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:38:41,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:43,663 INFO L124 PetriNetUnfolderBase]: 5808/9922 cut-off events. [2024-10-13 16:38:43,663 INFO L125 PetriNetUnfolderBase]: For 51511/51519 co-relation queries the response was YES. [2024-10-13 16:38:43,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46273 conditions, 9922 events. 5808/9922 cut-off events. For 51511/51519 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 70027 event pairs, 3287 based on Foata normal form. 110/9492 useless extension candidates. Maximal degree in co-relation 45464. Up to 7996 conditions per place. [2024-10-13 16:38:43,865 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 256 selfloop transitions, 94 changer transitions 15/367 dead transitions. [2024-10-13 16:38:43,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 367 transitions, 4875 flow [2024-10-13 16:38:43,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 16:38:43,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-13 16:38:43,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 196 transitions. [2024-10-13 16:38:43,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3712121212121212 [2024-10-13 16:38:43,868 INFO L175 Difference]: Start difference. First operand has 159 places, 282 transitions, 3359 flow. Second operand 12 states and 196 transitions. [2024-10-13 16:38:43,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 367 transitions, 4875 flow [2024-10-13 16:38:44,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 367 transitions, 4744 flow, removed 61 selfloop flow, removed 2 redundant places. [2024-10-13 16:38:44,268 INFO L231 Difference]: Finished difference. Result has 173 places, 295 transitions, 3725 flow [2024-10-13 16:38:44,269 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=3264, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3725, PETRI_PLACES=173, PETRI_TRANSITIONS=295} [2024-10-13 16:38:44,269 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 128 predicate places. [2024-10-13 16:38:44,269 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 295 transitions, 3725 flow [2024-10-13 16:38:44,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:44,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:44,270 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:44,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 16:38:44,270 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:44,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:44,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1611662663, now seen corresponding path program 2 times [2024-10-13 16:38:44,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:44,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816537142] [2024-10-13 16:38:44,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:44,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:44,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:44,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:44,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816537142] [2024-10-13 16:38:44,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816537142] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:44,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:44,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 16:38:44,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404080468] [2024-10-13 16:38:44,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:44,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 16:38:44,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:44,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 16:38:44,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-13 16:38:44,733 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:38:44,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 295 transitions, 3725 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:44,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:44,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:38:44,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:46,991 INFO L124 PetriNetUnfolderBase]: 6095/10413 cut-off events. [2024-10-13 16:38:46,991 INFO L125 PetriNetUnfolderBase]: For 57710/57718 co-relation queries the response was YES. [2024-10-13 16:38:47,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50032 conditions, 10413 events. 6095/10413 cut-off events. For 57710/57718 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 73325 event pairs, 3233 based on Foata normal form. 126/10001 useless extension candidates. Maximal degree in co-relation 49134. Up to 6881 conditions per place. [2024-10-13 16:38:47,107 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 274 selfloop transitions, 161 changer transitions 17/454 dead transitions. [2024-10-13 16:38:47,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 454 transitions, 6172 flow [2024-10-13 16:38:47,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 16:38:47,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-13 16:38:47,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 285 transitions. [2024-10-13 16:38:47,109 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3409090909090909 [2024-10-13 16:38:47,109 INFO L175 Difference]: Start difference. First operand has 173 places, 295 transitions, 3725 flow. Second operand 19 states and 285 transitions. [2024-10-13 16:38:47,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 454 transitions, 6172 flow [2024-10-13 16:38:47,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 454 transitions, 6060 flow, removed 19 selfloop flow, removed 5 redundant places. [2024-10-13 16:38:47,686 INFO L231 Difference]: Finished difference. Result has 194 places, 327 transitions, 4536 flow [2024-10-13 16:38:47,686 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=3619, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4536, PETRI_PLACES=194, PETRI_TRANSITIONS=327} [2024-10-13 16:38:47,688 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 149 predicate places. [2024-10-13 16:38:47,688 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 327 transitions, 4536 flow [2024-10-13 16:38:47,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:47,688 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:47,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:47,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 16:38:47,689 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:47,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:47,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1206654840, now seen corresponding path program 3 times [2024-10-13 16:38:47,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:47,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913427587] [2024-10-13 16:38:47,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:47,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:48,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:48,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:48,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913427587] [2024-10-13 16:38:48,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913427587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:48,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:48,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 16:38:48,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575344743] [2024-10-13 16:38:48,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:48,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 16:38:48,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:48,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 16:38:48,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-13 16:38:48,225 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:38:48,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 327 transitions, 4536 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:48,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:48,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:38:48,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:50,796 INFO L124 PetriNetUnfolderBase]: 6447/11067 cut-off events. [2024-10-13 16:38:50,796 INFO L125 PetriNetUnfolderBase]: For 80547/80555 co-relation queries the response was YES. [2024-10-13 16:38:50,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56743 conditions, 11067 events. 6447/11067 cut-off events. For 80547/80555 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 79055 event pairs, 3675 based on Foata normal form. 104/10629 useless extension candidates. Maximal degree in co-relation 55904. Up to 7323 conditions per place. [2024-10-13 16:38:50,904 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 249 selfloop transitions, 170 changer transitions 10/431 dead transitions. [2024-10-13 16:38:50,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 431 transitions, 6369 flow [2024-10-13 16:38:50,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 16:38:50,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 16:38:50,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 297 transitions. [2024-10-13 16:38:50,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32142857142857145 [2024-10-13 16:38:50,907 INFO L175 Difference]: Start difference. First operand has 194 places, 327 transitions, 4536 flow. Second operand 21 states and 297 transitions. [2024-10-13 16:38:50,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 431 transitions, 6369 flow [2024-10-13 16:38:51,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 431 transitions, 6042 flow, removed 72 selfloop flow, removed 12 redundant places. [2024-10-13 16:38:51,492 INFO L231 Difference]: Finished difference. Result has 206 places, 345 transitions, 4944 flow [2024-10-13 16:38:51,492 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=4273, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4944, PETRI_PLACES=206, PETRI_TRANSITIONS=345} [2024-10-13 16:38:51,493 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 161 predicate places. [2024-10-13 16:38:51,493 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 345 transitions, 4944 flow [2024-10-13 16:38:51,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:51,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:51,494 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:51,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 16:38:51,494 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:51,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:51,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1256771727, now seen corresponding path program 2 times [2024-10-13 16:38:51,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:51,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111838989] [2024-10-13 16:38:51,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:51,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:51,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:51,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111838989] [2024-10-13 16:38:51,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111838989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:51,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:51,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 16:38:51,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553846324] [2024-10-13 16:38:51,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:51,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 16:38:51,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:51,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 16:38:51,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:38:51,993 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:38:51,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 345 transitions, 4944 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:51,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:51,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:38:51,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:54,381 INFO L124 PetriNetUnfolderBase]: 6250/10715 cut-off events. [2024-10-13 16:38:54,381 INFO L125 PetriNetUnfolderBase]: For 85597/85605 co-relation queries the response was YES. [2024-10-13 16:38:54,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57062 conditions, 10715 events. 6250/10715 cut-off events. For 85597/85605 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 75964 event pairs, 3471 based on Foata normal form. 48/10206 useless extension candidates. Maximal degree in co-relation 56209. Up to 6863 conditions per place. [2024-10-13 16:38:54,468 INFO L140 encePairwiseOnDemand]: 33/44 looper letters, 299 selfloop transitions, 157 changer transitions 6/464 dead transitions. [2024-10-13 16:38:54,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 464 transitions, 7097 flow [2024-10-13 16:38:54,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 16:38:54,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 16:38:54,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 225 transitions. [2024-10-13 16:38:54,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3409090909090909 [2024-10-13 16:38:54,470 INFO L175 Difference]: Start difference. First operand has 206 places, 345 transitions, 4944 flow. Second operand 15 states and 225 transitions. [2024-10-13 16:38:54,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 464 transitions, 7097 flow [2024-10-13 16:38:55,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 464 transitions, 6870 flow, removed 23 selfloop flow, removed 6 redundant places. [2024-10-13 16:38:55,026 INFO L231 Difference]: Finished difference. Result has 219 places, 373 transitions, 5529 flow [2024-10-13 16:38:55,026 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=4747, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=5529, PETRI_PLACES=219, PETRI_TRANSITIONS=373} [2024-10-13 16:38:55,027 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 174 predicate places. [2024-10-13 16:38:55,027 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 373 transitions, 5529 flow [2024-10-13 16:38:55,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:55,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:55,028 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:55,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 16:38:55,028 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:55,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:55,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2116807447, now seen corresponding path program 3 times [2024-10-13 16:38:55,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:55,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568188236] [2024-10-13 16:38:55,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:55,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:55,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:55,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:55,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568188236] [2024-10-13 16:38:55,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568188236] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:55,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:55,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 16:38:55,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724585743] [2024-10-13 16:38:55,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:55,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 16:38:55,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:55,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 16:38:55,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 16:38:55,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:38:55,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 373 transitions, 5529 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:55,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:55,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:38:55,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:38:58,066 INFO L124 PetriNetUnfolderBase]: 6638/11441 cut-off events. [2024-10-13 16:38:58,067 INFO L125 PetriNetUnfolderBase]: For 106261/106269 co-relation queries the response was YES. [2024-10-13 16:38:58,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63439 conditions, 11441 events. 6638/11441 cut-off events. For 106261/106269 co-relation queries the response was YES. Maximal size of possible extension queue 532. Compared 82535 event pairs, 3751 based on Foata normal form. 136/11016 useless extension candidates. Maximal degree in co-relation 62563. Up to 7895 conditions per place. [2024-10-13 16:38:58,364 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 332 selfloop transitions, 131 changer transitions 20/485 dead transitions. [2024-10-13 16:38:58,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 485 transitions, 7562 flow [2024-10-13 16:38:58,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 16:38:58,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 16:38:58,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 227 transitions. [2024-10-13 16:38:58,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34393939393939393 [2024-10-13 16:38:58,366 INFO L175 Difference]: Start difference. First operand has 219 places, 373 transitions, 5529 flow. Second operand 15 states and 227 transitions. [2024-10-13 16:38:58,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 485 transitions, 7562 flow [2024-10-13 16:38:58,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 485 transitions, 7362 flow, removed 53 selfloop flow, removed 5 redundant places. [2024-10-13 16:38:58,898 INFO L231 Difference]: Finished difference. Result has 231 places, 378 transitions, 5721 flow [2024-10-13 16:38:58,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=5346, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=5721, PETRI_PLACES=231, PETRI_TRANSITIONS=378} [2024-10-13 16:38:58,899 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 186 predicate places. [2024-10-13 16:38:58,899 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 378 transitions, 5721 flow [2024-10-13 16:38:58,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:58,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:38:58,900 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:38:58,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 16:38:58,900 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:38:58,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:38:58,900 INFO L85 PathProgramCache]: Analyzing trace with hash -976224430, now seen corresponding path program 1 times [2024-10-13 16:38:58,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:38:58,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770378041] [2024-10-13 16:38:58,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:38:58,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:38:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:38:59,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:38:59,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:38:59,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770378041] [2024-10-13 16:38:59,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770378041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:38:59,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:38:59,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 16:38:59,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999214395] [2024-10-13 16:38:59,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:38:59,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 16:38:59,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:38:59,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 16:38:59,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:38:59,293 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:38:59,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 378 transitions, 5721 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:38:59,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:38:59,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:38:59,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:01,712 INFO L124 PetriNetUnfolderBase]: 6788/11663 cut-off events. [2024-10-13 16:39:01,712 INFO L125 PetriNetUnfolderBase]: For 115705/115713 co-relation queries the response was YES. [2024-10-13 16:39:01,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67079 conditions, 11663 events. 6788/11663 cut-off events. For 115705/115713 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 84266 event pairs, 3812 based on Foata normal form. 83/11145 useless extension candidates. Maximal degree in co-relation 66115. Up to 8540 conditions per place. [2024-10-13 16:39:01,855 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 357 selfloop transitions, 148 changer transitions 15/522 dead transitions. [2024-10-13 16:39:01,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 522 transitions, 8331 flow [2024-10-13 16:39:01,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 16:39:01,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-13 16:39:01,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 203 transitions. [2024-10-13 16:39:01,857 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3548951048951049 [2024-10-13 16:39:01,857 INFO L175 Difference]: Start difference. First operand has 231 places, 378 transitions, 5721 flow. Second operand 13 states and 203 transitions. [2024-10-13 16:39:01,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 522 transitions, 8331 flow [2024-10-13 16:39:02,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 522 transitions, 7995 flow, removed 30 selfloop flow, removed 11 redundant places. [2024-10-13 16:39:02,582 INFO L231 Difference]: Finished difference. Result has 238 places, 426 transitions, 6572 flow [2024-10-13 16:39:02,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=5472, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6572, PETRI_PLACES=238, PETRI_TRANSITIONS=426} [2024-10-13 16:39:02,583 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 193 predicate places. [2024-10-13 16:39:02,583 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 426 transitions, 6572 flow [2024-10-13 16:39:02,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:02,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:02,583 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:02,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 16:39:02,584 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:39:02,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:02,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1837987195, now seen corresponding path program 1 times [2024-10-13 16:39:02,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:02,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241789767] [2024-10-13 16:39:02,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:02,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:03,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:03,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:03,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241789767] [2024-10-13 16:39:03,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241789767] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:03,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:03,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 16:39:03,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440618074] [2024-10-13 16:39:03,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:03,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 16:39:03,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:03,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 16:39:03,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:39:03,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:39:03,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 426 transitions, 6572 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:03,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:03,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:39:03,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:05,953 INFO L124 PetriNetUnfolderBase]: 7203/12418 cut-off events. [2024-10-13 16:39:05,953 INFO L125 PetriNetUnfolderBase]: For 143659/143667 co-relation queries the response was YES. [2024-10-13 16:39:06,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75500 conditions, 12418 events. 7203/12418 cut-off events. For 143659/143667 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 91071 event pairs, 4062 based on Foata normal form. 83/11867 useless extension candidates. Maximal degree in co-relation 74590. Up to 9220 conditions per place. [2024-10-13 16:39:06,117 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 377 selfloop transitions, 177 changer transitions 15/571 dead transitions. [2024-10-13 16:39:06,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 571 transitions, 9262 flow [2024-10-13 16:39:06,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 16:39:06,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 16:39:06,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 226 transitions. [2024-10-13 16:39:06,118 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3424242424242424 [2024-10-13 16:39:06,118 INFO L175 Difference]: Start difference. First operand has 238 places, 426 transitions, 6572 flow. Second operand 15 states and 226 transitions. [2024-10-13 16:39:06,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 571 transitions, 9262 flow [2024-10-13 16:39:07,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 571 transitions, 9072 flow, removed 33 selfloop flow, removed 5 redundant places. [2024-10-13 16:39:07,157 INFO L231 Difference]: Finished difference. Result has 251 places, 471 transitions, 7487 flow [2024-10-13 16:39:07,157 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=6413, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7487, PETRI_PLACES=251, PETRI_TRANSITIONS=471} [2024-10-13 16:39:07,158 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 206 predicate places. [2024-10-13 16:39:07,158 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 471 transitions, 7487 flow [2024-10-13 16:39:07,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:07,158 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:07,158 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:07,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 16:39:07,159 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:39:07,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:07,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1508831487, now seen corresponding path program 1 times [2024-10-13 16:39:07,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:07,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801916403] [2024-10-13 16:39:07,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:07,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:07,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:07,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:07,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801916403] [2024-10-13 16:39:07,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801916403] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:07,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:07,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 16:39:07,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975725081] [2024-10-13 16:39:07,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:07,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 16:39:07,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:07,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 16:39:07,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:39:07,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:39:07,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 471 transitions, 7487 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:07,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:07,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:39:07,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:39:13,265 INFO L124 PetriNetUnfolderBase]: 13069/23158 cut-off events. [2024-10-13 16:39:13,265 INFO L125 PetriNetUnfolderBase]: For 304839/304847 co-relation queries the response was YES. [2024-10-13 16:39:13,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138474 conditions, 23158 events. 13069/23158 cut-off events. For 304839/304847 co-relation queries the response was YES. Maximal size of possible extension queue 1319. Compared 199867 event pairs, 3933 based on Foata normal form. 328/22308 useless extension candidates. Maximal degree in co-relation 137343. Up to 7524 conditions per place. [2024-10-13 16:39:13,651 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 589 selfloop transitions, 93 changer transitions 10/694 dead transitions. [2024-10-13 16:39:13,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 694 transitions, 11418 flow [2024-10-13 16:39:13,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 16:39:13,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-13 16:39:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 222 transitions. [2024-10-13 16:39:13,653 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45867768595041325 [2024-10-13 16:39:13,653 INFO L175 Difference]: Start difference. First operand has 251 places, 471 transitions, 7487 flow. Second operand 11 states and 222 transitions. [2024-10-13 16:39:13,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 694 transitions, 11418 flow [2024-10-13 16:39:15,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 694 transitions, 11143 flow, removed 83 selfloop flow, removed 5 redundant places. [2024-10-13 16:39:15,476 INFO L231 Difference]: Finished difference. Result has 261 places, 490 transitions, 7827 flow [2024-10-13 16:39:15,476 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=7305, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7827, PETRI_PLACES=261, PETRI_TRANSITIONS=490} [2024-10-13 16:39:15,477 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 216 predicate places. [2024-10-13 16:39:15,477 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 490 transitions, 7827 flow [2024-10-13 16:39:15,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:15,477 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:39:15,477 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:39:15,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 16:39:15,478 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-10-13 16:39:15,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:39:15,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1781679493, now seen corresponding path program 1 times [2024-10-13 16:39:15,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:39:15,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077370561] [2024-10-13 16:39:15,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:39:15,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:39:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:39:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:39:15,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:39:15,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077370561] [2024-10-13 16:39:15,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077370561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:39:15,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:39:15,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 16:39:15,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584891013] [2024-10-13 16:39:15,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:39:15,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 16:39:15,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:39:15,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 16:39:15,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:39:15,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2024-10-13 16:39:15,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 490 transitions, 7827 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:39:15,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:39:15,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2024-10-13 16:39:15,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand