./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:16:26,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:16:27,018 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:16:27,023 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:16:27,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:16:27,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:16:27,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:16:27,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:16:27,045 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:16:27,045 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:16:27,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:16:27,046 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:16:27,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:16:27,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:16:27,046 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:16:27,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:16:27,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:16:27,047 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:16:27,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:16:27,047 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:16:27,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:16:27,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:16:27,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:16:27,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:16:27,048 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:16:27,048 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:16:27,048 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:16:27,048 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:16:27,048 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:16:27,048 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:16:27,049 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:16:27,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:16:27,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:16:27,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:16:27,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:16:27,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:16:27,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:16:27,049 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:16:27,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:16:27,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:16:27,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:16:27,050 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:16:27,050 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:16:27,050 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:16:27,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:16:27,050 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 [2025-03-04 15:16:27,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:16:27,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:16:27,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:16:27,276 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:16:27,276 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:16:27,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2025-03-04 15:16:28,501 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6390acc8/814048dcd9dc4df6a1c5f8613796f989/FLAG55640b653 [2025-03-04 15:16:28,842 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:16:28,843 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2025-03-04 15:16:28,875 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6390acc8/814048dcd9dc4df6a1c5f8613796f989/FLAG55640b653 [2025-03-04 15:16:28,891 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6390acc8/814048dcd9dc4df6a1c5f8613796f989 [2025-03-04 15:16:28,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:16:28,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:16:28,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:16:28,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:16:28,902 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:16:28,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:16:28" (1/1) ... [2025-03-04 15:16:28,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b13c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:28, skipping insertion in model container [2025-03-04 15:16:28,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:16:28" (1/1) ... [2025-03-04 15:16:28,941 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:16:29,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:16:29,263 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:16:29,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:16:29,343 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:16:29,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29 WrapperNode [2025-03-04 15:16:29,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:16:29,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:16:29,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:16:29,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:16:29,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29" (1/1) ... [2025-03-04 15:16:29,362 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29" (1/1) ... [2025-03-04 15:16:29,380 INFO L138 Inliner]: procedures = 246, calls = 44, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 145 [2025-03-04 15:16:29,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:16:29,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:16:29,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:16:29,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:16:29,387 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29" (1/1) ... [2025-03-04 15:16:29,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29" (1/1) ... [2025-03-04 15:16:29,392 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29" (1/1) ... [2025-03-04 15:16:29,413 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 13, 2]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 6, 2]. [2025-03-04 15:16:29,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29" (1/1) ... [2025-03-04 15:16:29,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29" (1/1) ... [2025-03-04 15:16:29,423 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29" (1/1) ... [2025-03-04 15:16:29,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29" (1/1) ... [2025-03-04 15:16:29,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29" (1/1) ... [2025-03-04 15:16:29,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29" (1/1) ... [2025-03-04 15:16:29,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:16:29,440 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:16:29,440 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:16:29,440 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:16:29,441 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29" (1/1) ... [2025-03-04 15:16:29,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:16:29,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:16:29,468 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) [2025-03-04 15:16:29,472 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 [2025-03-04 15:16:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-03-04 15:16:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-03-04 15:16:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 15:16:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 15:16:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 15:16:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 15:16:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 15:16:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 15:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 15:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 15:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 15:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 15:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 15:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 15:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 15:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:16:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 15:16:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 15:16:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:16:29,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:16:29,493 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:16:29,687 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:16:29,688 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:16:29,883 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:16:29,884 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:16:30,054 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:16:30,054 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:16:30,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:16:30 BoogieIcfgContainer [2025-03-04 15:16:30,056 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:16:30,058 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:16:30,059 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:16:30,062 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:16:30,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:16:28" (1/3) ... [2025-03-04 15:16:30,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d76960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:16:30, skipping insertion in model container [2025-03-04 15:16:30,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:16:29" (2/3) ... [2025-03-04 15:16:30,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d76960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:16:30, skipping insertion in model container [2025-03-04 15:16:30,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:16:30" (3/3) ... [2025-03-04 15:16:30,064 INFO L128 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2025-03-04 15:16:30,075 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:16:30,077 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-3_2-container_of-global.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 15:16:30,077 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:16:30,116 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 15:16:30,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 82 flow [2025-03-04 15:16:30,170 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-03-04 15:16:30,172 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 15:16:30,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 37 events. 2/37 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 76 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 21. Up to 3 conditions per place. [2025-03-04 15:16:30,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 82 flow [2025-03-04 15:16:30,180 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 65 flow [2025-03-04 15:16:30,187 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:16:30,195 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;@614b3baa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:16:30,196 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-04 15:16:30,201 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:16:30,201 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-03-04 15:16:30,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:16:30,202 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:30,202 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:30,202 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:30,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:30,208 INFO L85 PathProgramCache]: Analyzing trace with hash 57593330, now seen corresponding path program 1 times [2025-03-04 15:16:30,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:30,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390537241] [2025-03-04 15:16:30,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:16:30,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:30,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 15:16:30,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 15:16:30,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:16:30,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:30,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:30,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:30,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390537241] [2025-03-04 15:16:30,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390537241] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:30,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:30,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 15:16:30,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386126042] [2025-03-04 15:16:30,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:30,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:16:30,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:30,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:16:30,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:16:30,995 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:30,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 65 flow. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2025-03-04 15:16:30,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:30,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:30,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:31,440 INFO L124 PetriNetUnfolderBase]: 769/1310 cut-off events. [2025-03-04 15:16:31,440 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-03-04 15:16:31,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2642 conditions, 1310 events. 769/1310 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 6514 event pairs, 367 based on Foata normal form. 0/1090 useless extension candidates. Maximal degree in co-relation 2572. Up to 850 conditions per place. [2025-03-04 15:16:31,451 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 63 selfloop transitions, 20 changer transitions 2/86 dead transitions. [2025-03-04 15:16:31,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 86 transitions, 366 flow [2025-03-04 15:16:31,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 15:16:31,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 15:16:31,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 129 transitions. [2025-03-04 15:16:31,462 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37941176470588234 [2025-03-04 15:16:31,464 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 65 flow. Second operand 10 states and 129 transitions. [2025-03-04 15:16:31,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 86 transitions, 366 flow [2025-03-04 15:16:31,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 86 transitions, 355 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:16:31,473 INFO L231 Difference]: Finished difference. Result has 46 places, 48 transitions, 188 flow [2025-03-04 15:16:31,475 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=188, PETRI_PLACES=46, PETRI_TRANSITIONS=48} [2025-03-04 15:16:31,478 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2025-03-04 15:16:31,479 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 48 transitions, 188 flow [2025-03-04 15:16:31,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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) [2025-03-04 15:16:31,479 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:31,479 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:31,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:16:31,479 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:31,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:31,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1397316198, now seen corresponding path program 1 times [2025-03-04 15:16:31,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:31,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506831704] [2025-03-04 15:16:31,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:16:31,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:31,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:16:31,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:16:31,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:16:31,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:31,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:31,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:31,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506831704] [2025-03-04 15:16:31,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506831704] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:31,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:31,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 15:16:31,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938733240] [2025-03-04 15:16:31,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:31,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:16:31,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:31,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:16:31,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:16:31,797 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:31,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 48 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2025-03-04 15:16:31,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:31,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:31,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:32,181 INFO L124 PetriNetUnfolderBase]: 899/1554 cut-off events. [2025-03-04 15:16:32,181 INFO L125 PetriNetUnfolderBase]: For 782/782 co-relation queries the response was YES. [2025-03-04 15:16:32,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3993 conditions, 1554 events. 899/1554 cut-off events. For 782/782 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 8195 event pairs, 569 based on Foata normal form. 0/1372 useless extension candidates. Maximal degree in co-relation 3585. Up to 1126 conditions per place. [2025-03-04 15:16:32,191 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 63 selfloop transitions, 26 changer transitions 4/94 dead transitions. [2025-03-04 15:16:32,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 94 transitions, 534 flow [2025-03-04 15:16:32,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 15:16:32,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 15:16:32,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 123 transitions. [2025-03-04 15:16:32,194 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36176470588235293 [2025-03-04 15:16:32,194 INFO L175 Difference]: Start difference. First operand has 46 places, 48 transitions, 188 flow. Second operand 10 states and 123 transitions. [2025-03-04 15:16:32,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 94 transitions, 534 flow [2025-03-04 15:16:32,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 94 transitions, 532 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:16:32,201 INFO L231 Difference]: Finished difference. Result has 57 places, 62 transitions, 327 flow [2025-03-04 15:16:32,201 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=327, PETRI_PLACES=57, PETRI_TRANSITIONS=62} [2025-03-04 15:16:32,203 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 22 predicate places. [2025-03-04 15:16:32,203 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 62 transitions, 327 flow [2025-03-04 15:16:32,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2025-03-04 15:16:32,203 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:32,204 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:32,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:16:32,204 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:32,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:32,204 INFO L85 PathProgramCache]: Analyzing trace with hash -865310677, now seen corresponding path program 1 times [2025-03-04 15:16:32,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:32,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349231256] [2025-03-04 15:16:32,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:16:32,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:32,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:16:32,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:16:32,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:16:32,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:32,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:32,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:32,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349231256] [2025-03-04 15:16:32,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349231256] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:32,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:32,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 15:16:32,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052887943] [2025-03-04 15:16:32,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:32,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 15:16:32,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:32,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 15:16:32,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-04 15:16:32,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:32,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 62 transitions, 327 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:32,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:32,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:32,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:33,172 INFO L124 PetriNetUnfolderBase]: 1232/2123 cut-off events. [2025-03-04 15:16:33,172 INFO L125 PetriNetUnfolderBase]: For 2138/2143 co-relation queries the response was YES. [2025-03-04 15:16:33,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6425 conditions, 2123 events. 1232/2123 cut-off events. For 2138/2143 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 12005 event pairs, 437 based on Foata normal form. 59/2034 useless extension candidates. Maximal degree in co-relation 6327. Up to 1111 conditions per place. [2025-03-04 15:16:33,185 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 86 selfloop transitions, 50 changer transitions 3/140 dead transitions. [2025-03-04 15:16:33,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 140 transitions, 949 flow [2025-03-04 15:16:33,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 15:16:33,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-04 15:16:33,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 177 transitions. [2025-03-04 15:16:33,188 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37184873949579833 [2025-03-04 15:16:33,188 INFO L175 Difference]: Start difference. First operand has 57 places, 62 transitions, 327 flow. Second operand 14 states and 177 transitions. [2025-03-04 15:16:33,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 140 transitions, 949 flow [2025-03-04 15:16:33,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 140 transitions, 947 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:16:33,200 INFO L231 Difference]: Finished difference. Result has 77 places, 89 transitions, 697 flow [2025-03-04 15:16:33,200 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=697, PETRI_PLACES=77, PETRI_TRANSITIONS=89} [2025-03-04 15:16:33,201 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 42 predicate places. [2025-03-04 15:16:33,202 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 89 transitions, 697 flow [2025-03-04 15:16:33,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:33,202 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:33,202 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:33,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:16:33,202 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:33,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:33,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1710718043, now seen corresponding path program 1 times [2025-03-04 15:16:33,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:33,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053196489] [2025-03-04 15:16:33,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:16:33,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:33,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:16:33,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:16:33,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:16:33,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:33,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:33,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:33,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053196489] [2025-03-04 15:16:33,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053196489] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:33,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:33,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 15:16:33,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711527596] [2025-03-04 15:16:33,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:33,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 15:16:33,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:33,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 15:16:33,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 15:16:33,546 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:33,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 89 transitions, 697 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:33,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:33,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:33,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:34,203 INFO L124 PetriNetUnfolderBase]: 1448/2538 cut-off events. [2025-03-04 15:16:34,204 INFO L125 PetriNetUnfolderBase]: For 5262/5278 co-relation queries the response was YES. [2025-03-04 15:16:34,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9201 conditions, 2538 events. 1448/2538 cut-off events. For 5262/5278 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 15303 event pairs, 585 based on Foata normal form. 72/2448 useless extension candidates. Maximal degree in co-relation 9079. Up to 1461 conditions per place. [2025-03-04 15:16:34,222 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 84 selfloop transitions, 65 changer transitions 12/162 dead transitions. [2025-03-04 15:16:34,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 162 transitions, 1422 flow [2025-03-04 15:16:34,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 15:16:34,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-04 15:16:34,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 190 transitions. [2025-03-04 15:16:34,224 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.328719723183391 [2025-03-04 15:16:34,224 INFO L175 Difference]: Start difference. First operand has 77 places, 89 transitions, 697 flow. Second operand 17 states and 190 transitions. [2025-03-04 15:16:34,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 162 transitions, 1422 flow [2025-03-04 15:16:34,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 162 transitions, 1369 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-03-04 15:16:34,247 INFO L231 Difference]: Finished difference. Result has 92 places, 103 transitions, 967 flow [2025-03-04 15:16:34,247 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=967, PETRI_PLACES=92, PETRI_TRANSITIONS=103} [2025-03-04 15:16:34,249 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 57 predicate places. [2025-03-04 15:16:34,249 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 103 transitions, 967 flow [2025-03-04 15:16:34,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:34,249 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:34,249 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:34,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:16:34,250 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:34,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:34,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1703366393, now seen corresponding path program 2 times [2025-03-04 15:16:34,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:34,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815945763] [2025-03-04 15:16:34,250 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:16:34,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:34,269 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:16:34,277 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:16:34,277 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:16:34,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:34,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:34,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:34,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815945763] [2025-03-04 15:16:34,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815945763] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:34,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:34,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 15:16:34,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050924238] [2025-03-04 15:16:34,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:34,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 15:16:34,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:34,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 15:16:34,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-04 15:16:34,515 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:34,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 103 transitions, 967 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:34,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:34,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:34,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:35,168 INFO L124 PetriNetUnfolderBase]: 1492/2649 cut-off events. [2025-03-04 15:16:35,168 INFO L125 PetriNetUnfolderBase]: For 6958/6972 co-relation queries the response was YES. [2025-03-04 15:16:35,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10192 conditions, 2649 events. 1492/2649 cut-off events. For 6958/6972 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 16339 event pairs, 660 based on Foata normal form. 70/2555 useless extension candidates. Maximal degree in co-relation 10060. Up to 1324 conditions per place. [2025-03-04 15:16:35,183 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 82 selfloop transitions, 70 changer transitions 9/162 dead transitions. [2025-03-04 15:16:35,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 162 transitions, 1568 flow [2025-03-04 15:16:35,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-04 15:16:35,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-03-04 15:16:35,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 205 transitions. [2025-03-04 15:16:35,185 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3349673202614379 [2025-03-04 15:16:35,185 INFO L175 Difference]: Start difference. First operand has 92 places, 103 transitions, 967 flow. Second operand 18 states and 205 transitions. [2025-03-04 15:16:35,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 162 transitions, 1568 flow [2025-03-04 15:16:35,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 162 transitions, 1409 flow, removed 17 selfloop flow, removed 13 redundant places. [2025-03-04 15:16:35,201 INFO L231 Difference]: Finished difference. Result has 99 places, 106 transitions, 1027 flow [2025-03-04 15:16:35,201 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1027, PETRI_PLACES=99, PETRI_TRANSITIONS=106} [2025-03-04 15:16:35,201 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 64 predicate places. [2025-03-04 15:16:35,201 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 106 transitions, 1027 flow [2025-03-04 15:16:35,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:35,202 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:35,202 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:35,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 15:16:35,202 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:35,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:35,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1504064827, now seen corresponding path program 2 times [2025-03-04 15:16:35,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:35,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003794939] [2025-03-04 15:16:35,203 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:16:35,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:35,217 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:16:35,225 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:16:35,225 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:16:35,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:35,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:35,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:35,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003794939] [2025-03-04 15:16:35,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003794939] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:35,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:35,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 15:16:35,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105349187] [2025-03-04 15:16:35,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:35,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 15:16:35,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:35,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 15:16:35,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 15:16:35,489 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:35,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 106 transitions, 1027 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:35,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:35,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:35,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:36,170 INFO L124 PetriNetUnfolderBase]: 1613/2833 cut-off events. [2025-03-04 15:16:36,170 INFO L125 PetriNetUnfolderBase]: For 8425/8433 co-relation queries the response was YES. [2025-03-04 15:16:36,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11460 conditions, 2833 events. 1613/2833 cut-off events. For 8425/8433 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 17606 event pairs, 614 based on Foata normal form. 58/2703 useless extension candidates. Maximal degree in co-relation 11326. Up to 1777 conditions per place. [2025-03-04 15:16:36,190 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 101 selfloop transitions, 68 changer transitions 5/175 dead transitions. [2025-03-04 15:16:36,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 175 transitions, 1790 flow [2025-03-04 15:16:36,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 15:16:36,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-04 15:16:36,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 196 transitions. [2025-03-04 15:16:36,192 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3391003460207612 [2025-03-04 15:16:36,192 INFO L175 Difference]: Start difference. First operand has 99 places, 106 transitions, 1027 flow. Second operand 17 states and 196 transitions. [2025-03-04 15:16:36,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 175 transitions, 1790 flow [2025-03-04 15:16:36,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 175 transitions, 1609 flow, removed 22 selfloop flow, removed 15 redundant places. [2025-03-04 15:16:36,212 INFO L231 Difference]: Finished difference. Result has 104 places, 117 transitions, 1160 flow [2025-03-04 15:16:36,212 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1160, PETRI_PLACES=104, PETRI_TRANSITIONS=117} [2025-03-04 15:16:36,212 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 69 predicate places. [2025-03-04 15:16:36,213 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 117 transitions, 1160 flow [2025-03-04 15:16:36,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:36,213 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:36,213 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:36,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 15:16:36,213 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:36,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:36,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1504064603, now seen corresponding path program 3 times [2025-03-04 15:16:36,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:36,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434892295] [2025-03-04 15:16:36,214 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:16:36,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:36,226 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:16:36,230 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:16:36,231 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 15:16:36,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:36,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:36,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:36,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434892295] [2025-03-04 15:16:36,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434892295] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:36,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:36,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 15:16:36,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081746171] [2025-03-04 15:16:36,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:36,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 15:16:36,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:36,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 15:16:36,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-04 15:16:36,478 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:36,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 117 transitions, 1160 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:36,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:36,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:36,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:36,999 INFO L124 PetriNetUnfolderBase]: 1698/3027 cut-off events. [2025-03-04 15:16:36,999 INFO L125 PetriNetUnfolderBase]: For 13207/13232 co-relation queries the response was YES. [2025-03-04 15:16:37,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13436 conditions, 3027 events. 1698/3027 cut-off events. For 13207/13232 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 19320 event pairs, 997 based on Foata normal form. 55/2888 useless extension candidates. Maximal degree in co-relation 11506. Up to 2091 conditions per place. [2025-03-04 15:16:37,018 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 100 selfloop transitions, 52 changer transitions 8/161 dead transitions. [2025-03-04 15:16:37,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 161 transitions, 1746 flow [2025-03-04 15:16:37,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 15:16:37,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-04 15:16:37,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 147 transitions. [2025-03-04 15:16:37,020 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3602941176470588 [2025-03-04 15:16:37,020 INFO L175 Difference]: Start difference. First operand has 104 places, 117 transitions, 1160 flow. Second operand 12 states and 147 transitions. [2025-03-04 15:16:37,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 161 transitions, 1746 flow [2025-03-04 15:16:37,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 161 transitions, 1562 flow, removed 38 selfloop flow, removed 13 redundant places. [2025-03-04 15:16:37,046 INFO L231 Difference]: Finished difference. Result has 105 places, 121 transitions, 1173 flow [2025-03-04 15:16:37,047 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1003, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1173, PETRI_PLACES=105, PETRI_TRANSITIONS=121} [2025-03-04 15:16:37,047 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 70 predicate places. [2025-03-04 15:16:37,047 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 121 transitions, 1173 flow [2025-03-04 15:16:37,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:37,048 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:37,048 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:37,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 15:16:37,048 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:37,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:37,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1509629017, now seen corresponding path program 3 times [2025-03-04 15:16:37,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:37,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612414600] [2025-03-04 15:16:37,048 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:16:37,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:37,063 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:16:37,068 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:16:37,068 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 15:16:37,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:37,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:37,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:37,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612414600] [2025-03-04 15:16:37,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612414600] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:37,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:37,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 15:16:37,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146297081] [2025-03-04 15:16:37,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:37,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 15:16:37,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:37,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 15:16:37,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-04 15:16:37,297 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:37,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 121 transitions, 1173 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:37,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:37,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:37,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:38,028 INFO L124 PetriNetUnfolderBase]: 1625/2924 cut-off events. [2025-03-04 15:16:38,028 INFO L125 PetriNetUnfolderBase]: For 12015/12017 co-relation queries the response was YES. [2025-03-04 15:16:38,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12787 conditions, 2924 events. 1625/2924 cut-off events. For 12015/12017 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 18811 event pairs, 680 based on Foata normal form. 56/2808 useless extension candidates. Maximal degree in co-relation 12656. Up to 1606 conditions per place. [2025-03-04 15:16:38,052 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 109 selfloop transitions, 80 changer transitions 6/196 dead transitions. [2025-03-04 15:16:38,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 196 transitions, 2068 flow [2025-03-04 15:16:38,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-04 15:16:38,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-03-04 15:16:38,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 211 transitions. [2025-03-04 15:16:38,054 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34477124183006536 [2025-03-04 15:16:38,054 INFO L175 Difference]: Start difference. First operand has 105 places, 121 transitions, 1173 flow. Second operand 18 states and 211 transitions. [2025-03-04 15:16:38,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 196 transitions, 2068 flow [2025-03-04 15:16:38,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 196 transitions, 1936 flow, removed 10 selfloop flow, removed 9 redundant places. [2025-03-04 15:16:38,084 INFO L231 Difference]: Finished difference. Result has 116 places, 134 transitions, 1420 flow [2025-03-04 15:16:38,085 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1054, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1420, PETRI_PLACES=116, PETRI_TRANSITIONS=134} [2025-03-04 15:16:38,085 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 81 predicate places. [2025-03-04 15:16:38,085 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 134 transitions, 1420 flow [2025-03-04 15:16:38,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:38,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:38,086 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:38,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 15:16:38,086 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:38,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:38,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1509426983, now seen corresponding path program 4 times [2025-03-04 15:16:38,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:38,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657938617] [2025-03-04 15:16:38,087 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 15:16:38,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:38,101 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 12 statements into 2 equivalence classes. [2025-03-04 15:16:38,106 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:16:38,107 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 15:16:38,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:38,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:38,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:38,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657938617] [2025-03-04 15:16:38,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657938617] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:38,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:38,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-04 15:16:38,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381207707] [2025-03-04 15:16:38,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:38,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 15:16:38,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:38,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 15:16:38,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-03-04 15:16:38,358 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:38,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 134 transitions, 1420 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:38,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:38,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:38,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:38,940 INFO L124 PetriNetUnfolderBase]: 1659/3049 cut-off events. [2025-03-04 15:16:38,940 INFO L125 PetriNetUnfolderBase]: For 18090/18090 co-relation queries the response was YES. [2025-03-04 15:16:38,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14452 conditions, 3049 events. 1659/3049 cut-off events. For 18090/18090 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 20195 event pairs, 977 based on Foata normal form. 56/2939 useless extension candidates. Maximal degree in co-relation 12211. Up to 1808 conditions per place. [2025-03-04 15:16:38,955 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 108 selfloop transitions, 66 changer transitions 11/186 dead transitions. [2025-03-04 15:16:38,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 186 transitions, 2126 flow [2025-03-04 15:16:38,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 15:16:38,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-04 15:16:38,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 169 transitions. [2025-03-04 15:16:38,957 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3550420168067227 [2025-03-04 15:16:38,957 INFO L175 Difference]: Start difference. First operand has 116 places, 134 transitions, 1420 flow. Second operand 14 states and 169 transitions. [2025-03-04 15:16:38,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 186 transitions, 2126 flow [2025-03-04 15:16:38,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 186 transitions, 1969 flow, removed 27 selfloop flow, removed 12 redundant places. [2025-03-04 15:16:38,987 INFO L231 Difference]: Finished difference. Result has 120 places, 137 transitions, 1498 flow [2025-03-04 15:16:38,987 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1498, PETRI_PLACES=120, PETRI_TRANSITIONS=137} [2025-03-04 15:16:38,988 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 85 predicate places. [2025-03-04 15:16:38,988 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 137 transitions, 1498 flow [2025-03-04 15:16:38,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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) [2025-03-04 15:16:38,988 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:38,988 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:38,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 15:16:38,988 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:38,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:38,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1938155726, now seen corresponding path program 1 times [2025-03-04 15:16:38,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:38,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230777663] [2025-03-04 15:16:38,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:16:38,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:39,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:16:39,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:16:39,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:16:39,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:39,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:39,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:39,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230777663] [2025-03-04 15:16:39,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230777663] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:39,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:39,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 15:16:39,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986627205] [2025-03-04 15:16:39,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:39,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 15:16:39,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:39,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 15:16:39,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-04 15:16:39,259 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:39,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 137 transitions, 1498 flow. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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) [2025-03-04 15:16:39,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:39,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:39,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:40,095 INFO L124 PetriNetUnfolderBase]: 1847/3395 cut-off events. [2025-03-04 15:16:40,095 INFO L125 PetriNetUnfolderBase]: For 20332/20336 co-relation queries the response was YES. [2025-03-04 15:16:40,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16727 conditions, 3395 events. 1847/3395 cut-off events. For 20332/20336 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 22952 event pairs, 438 based on Foata normal form. 4/3191 useless extension candidates. Maximal degree in co-relation 16588. Up to 1366 conditions per place. [2025-03-04 15:16:40,116 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 173 selfloop transitions, 84 changer transitions 25/283 dead transitions. [2025-03-04 15:16:40,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 283 transitions, 3090 flow [2025-03-04 15:16:40,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-04 15:16:40,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-03-04 15:16:40,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 247 transitions. [2025-03-04 15:16:40,118 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4035947712418301 [2025-03-04 15:16:40,118 INFO L175 Difference]: Start difference. First operand has 120 places, 137 transitions, 1498 flow. Second operand 18 states and 247 transitions. [2025-03-04 15:16:40,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 283 transitions, 3090 flow [2025-03-04 15:16:40,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 283 transitions, 2956 flow, removed 35 selfloop flow, removed 7 redundant places. [2025-03-04 15:16:40,159 INFO L231 Difference]: Finished difference. Result has 140 places, 163 transitions, 2034 flow [2025-03-04 15:16:40,159 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1416, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2034, PETRI_PLACES=140, PETRI_TRANSITIONS=163} [2025-03-04 15:16:40,160 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 105 predicate places. [2025-03-04 15:16:40,160 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 163 transitions, 2034 flow [2025-03-04 15:16:40,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 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) [2025-03-04 15:16:40,160 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:40,160 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:40,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 15:16:40,160 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:40,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:40,161 INFO L85 PathProgramCache]: Analyzing trace with hash -704661985, now seen corresponding path program 1 times [2025-03-04 15:16:40,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:40,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386768906] [2025-03-04 15:16:40,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:16:40,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:40,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:16:40,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:16:40,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:16:40,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:40,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:40,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:40,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386768906] [2025-03-04 15:16:40,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386768906] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:40,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:40,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-04 15:16:40,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528424965] [2025-03-04 15:16:40,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:40,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 15:16:40,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:40,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 15:16:40,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-03-04 15:16:40,579 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:40,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 163 transitions, 2034 flow. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:16:40,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:40,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:40,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:41,706 INFO L124 PetriNetUnfolderBase]: 2059/3787 cut-off events. [2025-03-04 15:16:41,707 INFO L125 PetriNetUnfolderBase]: For 45367/45373 co-relation queries the response was YES. [2025-03-04 15:16:41,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21112 conditions, 3787 events. 2059/3787 cut-off events. For 45367/45373 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 26214 event pairs, 681 based on Foata normal form. 130/3765 useless extension candidates. Maximal degree in co-relation 20959. Up to 1635 conditions per place. [2025-03-04 15:16:41,730 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 181 selfloop transitions, 137 changer transitions 23/342 dead transitions. [2025-03-04 15:16:41,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 342 transitions, 4112 flow [2025-03-04 15:16:41,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-04 15:16:41,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-04 15:16:41,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 349 transitions. [2025-03-04 15:16:41,733 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34215686274509804 [2025-03-04 15:16:41,733 INFO L175 Difference]: Start difference. First operand has 140 places, 163 transitions, 2034 flow. Second operand 30 states and 349 transitions. [2025-03-04 15:16:41,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 342 transitions, 4112 flow [2025-03-04 15:16:41,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 342 transitions, 3886 flow, removed 113 selfloop flow, removed 0 redundant places. [2025-03-04 15:16:41,841 INFO L231 Difference]: Finished difference. Result has 179 places, 199 transitions, 2865 flow [2025-03-04 15:16:41,842 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1842, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2865, PETRI_PLACES=179, PETRI_TRANSITIONS=199} [2025-03-04 15:16:41,842 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 144 predicate places. [2025-03-04 15:16:41,842 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 199 transitions, 2865 flow [2025-03-04 15:16:41,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:16:41,842 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:41,843 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:41,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 15:16:41,843 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:41,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:41,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2034114544, now seen corresponding path program 1 times [2025-03-04 15:16:41,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:41,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60190522] [2025-03-04 15:16:41,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:16:41,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:41,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:16:41,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:16:41,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:16:41,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:41,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:41,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:41,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60190522] [2025-03-04 15:16:41,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60190522] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:41,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:41,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:16:41,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597866148] [2025-03-04 15:16:41,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:41,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:16:41,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:41,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:16:41,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:16:41,897 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 34 [2025-03-04 15:16:41,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 199 transitions, 2865 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2025-03-04 15:16:41,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:41,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 34 [2025-03-04 15:16:41,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:42,134 INFO L124 PetriNetUnfolderBase]: 812/1557 cut-off events. [2025-03-04 15:16:42,134 INFO L125 PetriNetUnfolderBase]: For 19757/19757 co-relation queries the response was YES. [2025-03-04 15:16:42,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8362 conditions, 1557 events. 812/1557 cut-off events. For 19757/19757 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9977 event pairs, 57 based on Foata normal form. 0/1509 useless extension candidates. Maximal degree in co-relation 8306. Up to 900 conditions per place. [2025-03-04 15:16:42,144 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 246 selfloop transitions, 7 changer transitions 6/259 dead transitions. [2025-03-04 15:16:42,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 259 transitions, 4312 flow [2025-03-04 15:16:42,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:16:42,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:16:42,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2025-03-04 15:16:42,146 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4852941176470588 [2025-03-04 15:16:42,146 INFO L175 Difference]: Start difference. First operand has 179 places, 199 transitions, 2865 flow. Second operand 4 states and 66 transitions. [2025-03-04 15:16:42,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 259 transitions, 4312 flow [2025-03-04 15:16:42,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 259 transitions, 3562 flow, removed 147 selfloop flow, removed 31 redundant places. [2025-03-04 15:16:42,170 INFO L231 Difference]: Finished difference. Result has 137 places, 105 transitions, 1139 flow [2025-03-04 15:16:42,170 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1154, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1139, PETRI_PLACES=137, PETRI_TRANSITIONS=105} [2025-03-04 15:16:42,171 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 102 predicate places. [2025-03-04 15:16:42,172 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 105 transitions, 1139 flow [2025-03-04 15:16:42,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2025-03-04 15:16:42,172 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:42,172 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:42,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 15:16:42,172 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:42,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:42,173 INFO L85 PathProgramCache]: Analyzing trace with hash 234934554, now seen corresponding path program 2 times [2025-03-04 15:16:42,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:42,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180056092] [2025-03-04 15:16:42,173 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:16:42,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:42,187 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:16:42,192 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:16:42,192 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:16:42,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:42,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:42,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:42,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180056092] [2025-03-04 15:16:42,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180056092] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:42,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:42,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 15:16:42,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238857128] [2025-03-04 15:16:42,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:42,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:16:42,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:42,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:16:42,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:16:42,311 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:42,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 105 transitions, 1139 flow. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2025-03-04 15:16:42,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:42,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:42,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:42,578 INFO L124 PetriNetUnfolderBase]: 768/1481 cut-off events. [2025-03-04 15:16:42,578 INFO L125 PetriNetUnfolderBase]: For 9614/9614 co-relation queries the response was YES. [2025-03-04 15:16:42,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7261 conditions, 1481 events. 768/1481 cut-off events. For 9614/9614 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 8760 event pairs, 271 based on Foata normal form. 30/1447 useless extension candidates. Maximal degree in co-relation 7223. Up to 427 conditions per place. [2025-03-04 15:16:42,587 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 109 selfloop transitions, 24 changer transitions 14/147 dead transitions. [2025-03-04 15:16:42,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 147 transitions, 1645 flow [2025-03-04 15:16:42,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 15:16:42,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 15:16:42,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 116 transitions. [2025-03-04 15:16:42,589 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3790849673202614 [2025-03-04 15:16:42,589 INFO L175 Difference]: Start difference. First operand has 137 places, 105 transitions, 1139 flow. Second operand 9 states and 116 transitions. [2025-03-04 15:16:42,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 147 transitions, 1645 flow [2025-03-04 15:16:42,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 147 transitions, 1614 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:16:42,613 INFO L231 Difference]: Finished difference. Result has 144 places, 95 transitions, 1085 flow [2025-03-04 15:16:42,613 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1130, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1085, PETRI_PLACES=144, PETRI_TRANSITIONS=95} [2025-03-04 15:16:42,614 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 109 predicate places. [2025-03-04 15:16:42,614 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 95 transitions, 1085 flow [2025-03-04 15:16:42,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2025-03-04 15:16:42,614 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:42,614 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:42,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 15:16:42,614 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:42,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:42,615 INFO L85 PathProgramCache]: Analyzing trace with hash -972419426, now seen corresponding path program 1 times [2025-03-04 15:16:42,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:42,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631933052] [2025-03-04 15:16:42,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:16:42,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:42,630 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:16:42,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:16:42,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:16:42,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:42,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:42,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:42,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631933052] [2025-03-04 15:16:42,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631933052] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:42,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:42,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 15:16:42,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65335456] [2025-03-04 15:16:42,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:42,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:16:42,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:42,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:16:42,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:16:42,760 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:42,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 95 transitions, 1085 flow. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2025-03-04 15:16:42,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:42,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:42,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:43,002 INFO L124 PetriNetUnfolderBase]: 632/1227 cut-off events. [2025-03-04 15:16:43,002 INFO L125 PetriNetUnfolderBase]: For 8560/8560 co-relation queries the response was YES. [2025-03-04 15:16:43,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6188 conditions, 1227 events. 632/1227 cut-off events. For 8560/8560 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 6968 event pairs, 238 based on Foata normal form. 0/1195 useless extension candidates. Maximal degree in co-relation 6148. Up to 444 conditions per place. [2025-03-04 15:16:43,010 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 102 selfloop transitions, 23 changer transitions 0/125 dead transitions. [2025-03-04 15:16:43,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 125 transitions, 1450 flow [2025-03-04 15:16:43,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 15:16:43,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 15:16:43,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 102 transitions. [2025-03-04 15:16:43,011 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.375 [2025-03-04 15:16:43,011 INFO L175 Difference]: Start difference. First operand has 144 places, 95 transitions, 1085 flow. Second operand 8 states and 102 transitions. [2025-03-04 15:16:43,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 125 transitions, 1450 flow [2025-03-04 15:16:43,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 125 transitions, 1365 flow, removed 12 selfloop flow, removed 10 redundant places. [2025-03-04 15:16:43,033 INFO L231 Difference]: Finished difference. Result has 141 places, 97 transitions, 1100 flow [2025-03-04 15:16:43,033 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1004, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1100, PETRI_PLACES=141, PETRI_TRANSITIONS=97} [2025-03-04 15:16:43,034 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 106 predicate places. [2025-03-04 15:16:43,034 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 97 transitions, 1100 flow [2025-03-04 15:16:43,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2025-03-04 15:16:43,035 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:43,035 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:43,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-04 15:16:43,035 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:43,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:43,035 INFO L85 PathProgramCache]: Analyzing trace with hash -972419425, now seen corresponding path program 1 times [2025-03-04 15:16:43,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:43,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463440278] [2025-03-04 15:16:43,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:16:43,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:43,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:16:43,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:16:43,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:16:43,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:43,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:43,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:43,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463440278] [2025-03-04 15:16:43,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463440278] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:43,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:43,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-04 15:16:43,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785854736] [2025-03-04 15:16:43,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:43,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 15:16:43,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:43,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 15:16:43,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-03-04 15:16:43,311 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:43,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 97 transitions, 1100 flow. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:16:43,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:43,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:43,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:43,864 INFO L124 PetriNetUnfolderBase]: 592/1155 cut-off events. [2025-03-04 15:16:43,865 INFO L125 PetriNetUnfolderBase]: For 8885/8885 co-relation queries the response was YES. [2025-03-04 15:16:43,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5854 conditions, 1155 events. 592/1155 cut-off events. For 8885/8885 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 6504 event pairs, 201 based on Foata normal form. 32/1187 useless extension candidates. Maximal degree in co-relation 5816. Up to 414 conditions per place. [2025-03-04 15:16:43,870 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 80 selfloop transitions, 38 changer transitions 36/154 dead transitions. [2025-03-04 15:16:43,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 154 transitions, 1660 flow [2025-03-04 15:16:43,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-04 15:16:43,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-03-04 15:16:43,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 198 transitions. [2025-03-04 15:16:43,871 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2911764705882353 [2025-03-04 15:16:43,871 INFO L175 Difference]: Start difference. First operand has 141 places, 97 transitions, 1100 flow. Second operand 20 states and 198 transitions. [2025-03-04 15:16:43,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 154 transitions, 1660 flow [2025-03-04 15:16:43,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 154 transitions, 1620 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-03-04 15:16:43,889 INFO L231 Difference]: Finished difference. Result has 157 places, 82 transitions, 947 flow [2025-03-04 15:16:43,889 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=947, PETRI_PLACES=157, PETRI_TRANSITIONS=82} [2025-03-04 15:16:43,889 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 122 predicate places. [2025-03-04 15:16:43,889 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 82 transitions, 947 flow [2025-03-04 15:16:43,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:16:43,889 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:43,889 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:43,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 15:16:43,889 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:43,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:43,890 INFO L85 PathProgramCache]: Analyzing trace with hash 552794557, now seen corresponding path program 2 times [2025-03-04 15:16:43,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:43,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090259003] [2025-03-04 15:16:43,890 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:16:43,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:43,898 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:16:43,902 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:16:43,902 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:16:43,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:44,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:44,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:44,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090259003] [2025-03-04 15:16:44,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090259003] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:44,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:44,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 15:16:44,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525978344] [2025-03-04 15:16:44,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:44,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 15:16:44,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:44,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 15:16:44,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-04 15:16:44,130 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:44,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 82 transitions, 947 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2025-03-04 15:16:44,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:44,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:44,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:44,526 INFO L124 PetriNetUnfolderBase]: 459/894 cut-off events. [2025-03-04 15:16:44,526 INFO L125 PetriNetUnfolderBase]: For 6822/6822 co-relation queries the response was YES. [2025-03-04 15:16:44,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4665 conditions, 894 events. 459/894 cut-off events. For 6822/6822 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4679 event pairs, 100 based on Foata normal form. 10/904 useless extension candidates. Maximal degree in co-relation 4628. Up to 390 conditions per place. [2025-03-04 15:16:44,531 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 50 selfloop transitions, 35 changer transitions 42/127 dead transitions. [2025-03-04 15:16:44,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 127 transitions, 1338 flow [2025-03-04 15:16:44,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-04 15:16:44,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-03-04 15:16:44,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 186 transitions. [2025-03-04 15:16:44,532 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2735294117647059 [2025-03-04 15:16:44,532 INFO L175 Difference]: Start difference. First operand has 157 places, 82 transitions, 947 flow. Second operand 20 states and 186 transitions. [2025-03-04 15:16:44,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 127 transitions, 1338 flow [2025-03-04 15:16:44,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 127 transitions, 1175 flow, removed 22 selfloop flow, removed 26 redundant places. [2025-03-04 15:16:44,545 INFO L231 Difference]: Finished difference. Result has 141 places, 65 transitions, 704 flow [2025-03-04 15:16:44,545 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=773, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=704, PETRI_PLACES=141, PETRI_TRANSITIONS=65} [2025-03-04 15:16:44,546 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 106 predicate places. [2025-03-04 15:16:44,546 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 65 transitions, 704 flow [2025-03-04 15:16:44,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2025-03-04 15:16:44,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:44,547 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:44,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-04 15:16:44,547 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:44,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:44,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1997664610, now seen corresponding path program 3 times [2025-03-04 15:16:44,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:44,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820407984] [2025-03-04 15:16:44,547 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:16:44,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:44,557 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:16:44,560 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:16:44,560 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 15:16:44,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:44,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:44,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:44,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820407984] [2025-03-04 15:16:44,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820407984] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:44,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:44,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 15:16:44,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545623029] [2025-03-04 15:16:44,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:44,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:16:44,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:44,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:16:44,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:16:44,655 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:44,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 65 transitions, 704 flow. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2025-03-04 15:16:44,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:44,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:44,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:44,824 INFO L124 PetriNetUnfolderBase]: 375/726 cut-off events. [2025-03-04 15:16:44,824 INFO L125 PetriNetUnfolderBase]: For 4229/4229 co-relation queries the response was YES. [2025-03-04 15:16:44,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3501 conditions, 726 events. 375/726 cut-off events. For 4229/4229 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3629 event pairs, 98 based on Foata normal form. 30/756 useless extension candidates. Maximal degree in co-relation 3473. Up to 388 conditions per place. [2025-03-04 15:16:44,829 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 58 selfloop transitions, 17 changer transitions 6/81 dead transitions. [2025-03-04 15:16:44,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 81 transitions, 888 flow [2025-03-04 15:16:44,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 15:16:44,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 15:16:44,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 80 transitions. [2025-03-04 15:16:44,830 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.33613445378151263 [2025-03-04 15:16:44,830 INFO L175 Difference]: Start difference. First operand has 141 places, 65 transitions, 704 flow. Second operand 7 states and 80 transitions. [2025-03-04 15:16:44,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 81 transitions, 888 flow [2025-03-04 15:16:44,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 81 transitions, 739 flow, removed 12 selfloop flow, removed 25 redundant places. [2025-03-04 15:16:44,837 INFO L231 Difference]: Finished difference. Result has 102 places, 57 transitions, 498 flow [2025-03-04 15:16:44,837 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=498, PETRI_PLACES=102, PETRI_TRANSITIONS=57} [2025-03-04 15:16:44,837 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 67 predicate places. [2025-03-04 15:16:44,837 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 57 transitions, 498 flow [2025-03-04 15:16:44,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2025-03-04 15:16:44,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:44,838 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:44,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-04 15:16:44,838 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:44,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:44,838 INFO L85 PathProgramCache]: Analyzing trace with hash -2141856669, now seen corresponding path program 2 times [2025-03-04 15:16:44,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:44,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989698417] [2025-03-04 15:16:44,838 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:16:44,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:44,847 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:16:44,851 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:16:44,852 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:16:44,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:45,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:45,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:45,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989698417] [2025-03-04 15:16:45,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989698417] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:45,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:45,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-04 15:16:45,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44274835] [2025-03-04 15:16:45,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:45,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 15:16:45,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:45,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 15:16:45,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-04 15:16:45,093 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:45,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 57 transitions, 498 flow. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:16:45,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:45,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:45,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:45,738 INFO L124 PetriNetUnfolderBase]: 424/829 cut-off events. [2025-03-04 15:16:45,738 INFO L125 PetriNetUnfolderBase]: For 1697/1697 co-relation queries the response was YES. [2025-03-04 15:16:45,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3425 conditions, 829 events. 424/829 cut-off events. For 1697/1697 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4412 event pairs, 42 based on Foata normal form. 40/869 useless extension candidates. Maximal degree in co-relation 3408. Up to 142 conditions per place. [2025-03-04 15:16:45,741 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 101 selfloop transitions, 42 changer transitions 12/155 dead transitions. [2025-03-04 15:16:45,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 155 transitions, 1250 flow [2025-03-04 15:16:45,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-04 15:16:45,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-04 15:16:45,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 269 transitions. [2025-03-04 15:16:45,742 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.26372549019607844 [2025-03-04 15:16:45,742 INFO L175 Difference]: Start difference. First operand has 102 places, 57 transitions, 498 flow. Second operand 30 states and 269 transitions. [2025-03-04 15:16:45,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 155 transitions, 1250 flow [2025-03-04 15:16:45,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 155 transitions, 1177 flow, removed 7 selfloop flow, removed 8 redundant places. [2025-03-04 15:16:45,749 INFO L231 Difference]: Finished difference. Result has 125 places, 65 transitions, 644 flow [2025-03-04 15:16:45,749 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=644, PETRI_PLACES=125, PETRI_TRANSITIONS=65} [2025-03-04 15:16:45,750 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 90 predicate places. [2025-03-04 15:16:45,750 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 65 transitions, 644 flow [2025-03-04 15:16:45,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:16:45,750 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:45,750 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:45,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-04 15:16:45,750 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:45,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:45,750 INFO L85 PathProgramCache]: Analyzing trace with hash -945445315, now seen corresponding path program 3 times [2025-03-04 15:16:45,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:45,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291274031] [2025-03-04 15:16:45,750 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:16:45,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:45,759 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:16:45,763 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:16:45,763 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 15:16:45,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:45,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:45,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291274031] [2025-03-04 15:16:45,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291274031] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:45,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:45,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 15:16:45,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392226583] [2025-03-04 15:16:45,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:45,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 15:16:45,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:45,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 15:16:45,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-03-04 15:16:45,980 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:45,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 65 transitions, 644 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2025-03-04 15:16:45,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:45,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:45,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:46,370 INFO L124 PetriNetUnfolderBase]: 384/753 cut-off events. [2025-03-04 15:16:46,370 INFO L125 PetriNetUnfolderBase]: For 1899/1899 co-relation queries the response was YES. [2025-03-04 15:16:46,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3443 conditions, 753 events. 384/753 cut-off events. For 1899/1899 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3965 event pairs, 84 based on Foata normal form. 20/773 useless extension candidates. Maximal degree in co-relation 3422. Up to 488 conditions per place. [2025-03-04 15:16:46,374 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 44 selfloop transitions, 33 changer transitions 27/104 dead transitions. [2025-03-04 15:16:46,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 104 transitions, 998 flow [2025-03-04 15:16:46,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-04 15:16:46,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-03-04 15:16:46,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 157 transitions. [2025-03-04 15:16:46,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2565359477124183 [2025-03-04 15:16:46,376 INFO L175 Difference]: Start difference. First operand has 125 places, 65 transitions, 644 flow. Second operand 18 states and 157 transitions. [2025-03-04 15:16:46,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 104 transitions, 998 flow [2025-03-04 15:16:46,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 104 transitions, 889 flow, removed 3 selfloop flow, removed 19 redundant places. [2025-03-04 15:16:46,382 INFO L231 Difference]: Finished difference. Result has 118 places, 55 transitions, 527 flow [2025-03-04 15:16:46,382 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=527, PETRI_PLACES=118, PETRI_TRANSITIONS=55} [2025-03-04 15:16:46,383 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 83 predicate places. [2025-03-04 15:16:46,383 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 55 transitions, 527 flow [2025-03-04 15:16:46,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2025-03-04 15:16:46,383 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:46,383 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:46,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-04 15:16:46,383 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:46,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:46,384 INFO L85 PathProgramCache]: Analyzing trace with hash -2143644129, now seen corresponding path program 3 times [2025-03-04 15:16:46,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:46,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344282673] [2025-03-04 15:16:46,384 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:16:46,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:46,395 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:16:46,399 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:16:46,400 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 15:16:46,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:46,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:46,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:46,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344282673] [2025-03-04 15:16:46,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344282673] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:46,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:46,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-04 15:16:46,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52007535] [2025-03-04 15:16:46,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:46,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 15:16:46,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:46,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 15:16:46,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-03-04 15:16:46,639 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:46,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 55 transitions, 527 flow. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:16:46,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:46,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:46,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:47,079 INFO L124 PetriNetUnfolderBase]: 311/612 cut-off events. [2025-03-04 15:16:47,080 INFO L125 PetriNetUnfolderBase]: For 1242/1242 co-relation queries the response was YES. [2025-03-04 15:16:47,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2790 conditions, 612 events. 311/612 cut-off events. For 1242/1242 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3024 event pairs, 16 based on Foata normal form. 8/620 useless extension candidates. Maximal degree in co-relation 2768. Up to 216 conditions per place. [2025-03-04 15:16:47,082 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 69 selfloop transitions, 37 changer transitions 0/106 dead transitions. [2025-03-04 15:16:47,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 106 transitions, 914 flow [2025-03-04 15:16:47,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-04 15:16:47,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-03-04 15:16:47,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 188 transitions. [2025-03-04 15:16:47,084 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.25133689839572193 [2025-03-04 15:16:47,084 INFO L175 Difference]: Start difference. First operand has 118 places, 55 transitions, 527 flow. Second operand 22 states and 188 transitions. [2025-03-04 15:16:47,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 106 transitions, 914 flow [2025-03-04 15:16:47,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 106 transitions, 815 flow, removed 4 selfloop flow, removed 17 redundant places. [2025-03-04 15:16:47,089 INFO L231 Difference]: Finished difference. Result has 109 places, 56 transitions, 529 flow [2025-03-04 15:16:47,089 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=529, PETRI_PLACES=109, PETRI_TRANSITIONS=56} [2025-03-04 15:16:47,089 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 74 predicate places. [2025-03-04 15:16:47,089 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 56 transitions, 529 flow [2025-03-04 15:16:47,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:16:47,089 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:47,089 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:47,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-04 15:16:47,090 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:47,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:47,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1139599765, now seen corresponding path program 4 times [2025-03-04 15:16:47,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:47,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602560274] [2025-03-04 15:16:47,090 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 15:16:47,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:47,099 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 14 statements into 2 equivalence classes. [2025-03-04 15:16:47,103 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:16:47,103 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 15:16:47,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:47,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:16:47,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:47,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602560274] [2025-03-04 15:16:47,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602560274] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:47,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:47,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-04 15:16:47,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309171632] [2025-03-04 15:16:47,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:47,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 15:16:47,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:47,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 15:16:47,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-04 15:16:47,302 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:47,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 56 transitions, 529 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2025-03-04 15:16:47,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:47,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:47,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:47,581 INFO L124 PetriNetUnfolderBase]: 301/594 cut-off events. [2025-03-04 15:16:47,581 INFO L125 PetriNetUnfolderBase]: For 1359/1359 co-relation queries the response was YES. [2025-03-04 15:16:47,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2761 conditions, 594 events. 301/594 cut-off events. For 1359/1359 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2940 event pairs, 34 based on Foata normal form. 8/602 useless extension candidates. Maximal degree in co-relation 2740. Up to 152 conditions per place. [2025-03-04 15:16:47,584 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 52 selfloop transitions, 37 changer transitions 0/89 dead transitions. [2025-03-04 15:16:47,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 89 transitions, 822 flow [2025-03-04 15:16:47,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 15:16:47,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-04 15:16:47,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 134 transitions. [2025-03-04 15:16:47,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2627450980392157 [2025-03-04 15:16:47,585 INFO L175 Difference]: Start difference. First operand has 109 places, 56 transitions, 529 flow. Second operand 15 states and 134 transitions. [2025-03-04 15:16:47,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 89 transitions, 822 flow [2025-03-04 15:16:47,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 89 transitions, 748 flow, removed 3 selfloop flow, removed 21 redundant places. [2025-03-04 15:16:47,589 INFO L231 Difference]: Finished difference. Result has 101 places, 57 transitions, 544 flow [2025-03-04 15:16:47,590 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=544, PETRI_PLACES=101, PETRI_TRANSITIONS=57} [2025-03-04 15:16:47,590 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 66 predicate places. [2025-03-04 15:16:47,590 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 57 transitions, 544 flow [2025-03-04 15:16:47,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2025-03-04 15:16:47,590 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:47,590 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:47,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-04 15:16:47,590 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:47,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:47,591 INFO L85 PathProgramCache]: Analyzing trace with hash -2143644130, now seen corresponding path program 2 times [2025-03-04 15:16:47,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:47,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121334142] [2025-03-04 15:16:47,591 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:16:47,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:47,600 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 2 equivalence classes. [2025-03-04 15:16:47,602 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 14 statements. [2025-03-04 15:16:47,603 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:16:47,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:47,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-04 15:16:47,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:47,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121334142] [2025-03-04 15:16:47,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121334142] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:47,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:47,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 15:16:47,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808554760] [2025-03-04 15:16:47,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:47,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:16:47,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:47,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:16:47,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:16:47,746 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:47,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 57 transitions, 544 flow. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2025-03-04 15:16:47,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:47,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:47,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:47,875 INFO L124 PetriNetUnfolderBase]: 291/576 cut-off events. [2025-03-04 15:16:47,875 INFO L125 PetriNetUnfolderBase]: For 1067/1067 co-relation queries the response was YES. [2025-03-04 15:16:47,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2787 conditions, 576 events. 291/576 cut-off events. For 1067/1067 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2813 event pairs, 84 based on Foata normal form. 8/584 useless extension candidates. Maximal degree in co-relation 2769. Up to 380 conditions per place. [2025-03-04 15:16:47,877 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 48 selfloop transitions, 10 changer transitions 12/70 dead transitions. [2025-03-04 15:16:47,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 70 transitions, 722 flow [2025-03-04 15:16:47,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:16:47,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:16:47,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 61 transitions. [2025-03-04 15:16:47,878 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.29901960784313725 [2025-03-04 15:16:47,878 INFO L175 Difference]: Start difference. First operand has 101 places, 57 transitions, 544 flow. Second operand 6 states and 61 transitions. [2025-03-04 15:16:47,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 70 transitions, 722 flow [2025-03-04 15:16:47,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 70 transitions, 686 flow, removed 4 selfloop flow, removed 7 redundant places. [2025-03-04 15:16:47,883 INFO L231 Difference]: Finished difference. Result has 98 places, 53 transitions, 485 flow [2025-03-04 15:16:47,883 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=485, PETRI_PLACES=98, PETRI_TRANSITIONS=53} [2025-03-04 15:16:47,884 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 63 predicate places. [2025-03-04 15:16:47,884 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 53 transitions, 485 flow [2025-03-04 15:16:47,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2025-03-04 15:16:47,884 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:16:47,884 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:16:47,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-04 15:16:47,884 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-04 15:16:47,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:16:47,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2141770180, now seen corresponding path program 3 times [2025-03-04 15:16:47,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:16:47,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645571304] [2025-03-04 15:16:47,885 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:16:47,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:16:47,894 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 2 equivalence classes. [2025-03-04 15:16:47,899 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 12 of 14 statements. [2025-03-04 15:16:47,899 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 15:16:47,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:16:47,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-04 15:16:47,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:16:47,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645571304] [2025-03-04 15:16:47,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645571304] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:16:47,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:16:47,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 15:16:47,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652532899] [2025-03-04 15:16:47,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:16:47,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:16:47,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:16:47,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:16:47,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:16:47,989 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-03-04 15:16:47,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 53 transitions, 485 flow. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2025-03-04 15:16:47,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:16:47,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-03-04 15:16:47,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:16:48,086 INFO L124 PetriNetUnfolderBase]: 195/400 cut-off events. [2025-03-04 15:16:48,087 INFO L125 PetriNetUnfolderBase]: For 906/906 co-relation queries the response was YES. [2025-03-04 15:16:48,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1999 conditions, 400 events. 195/400 cut-off events. For 906/906 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1829 event pairs, 22 based on Foata normal form. 48/448 useless extension candidates. Maximal degree in co-relation 1981. Up to 150 conditions per place. [2025-03-04 15:16:48,088 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2025-03-04 15:16:48,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 62 transitions, 624 flow [2025-03-04 15:16:48,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:16:48,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:16:48,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 58 transitions. [2025-03-04 15:16:48,088 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.28431372549019607 [2025-03-04 15:16:48,088 INFO L175 Difference]: Start difference. First operand has 98 places, 53 transitions, 485 flow. Second operand 6 states and 58 transitions. [2025-03-04 15:16:48,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 62 transitions, 624 flow [2025-03-04 15:16:48,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 62 transitions, 571 flow, removed 0 selfloop flow, removed 10 redundant places. [2025-03-04 15:16:48,091 INFO L231 Difference]: Finished difference. Result has 84 places, 0 transitions, 0 flow [2025-03-04 15:16:48,091 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=84, PETRI_TRANSITIONS=0} [2025-03-04 15:16:48,091 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 49 predicate places. [2025-03-04 15:16:48,091 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 0 transitions, 0 flow [2025-03-04 15:16:48,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 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) [2025-03-04 15:16:48,093 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2025-03-04 15:16:48,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2025-03-04 15:16:48,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2025-03-04 15:16:48,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2025-03-04 15:16:48,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2025-03-04 15:16:48,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2025-03-04 15:16:48,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2025-03-04 15:16:48,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2025-03-04 15:16:48,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-04 15:16:48,094 INFO L422 BasicCegarLoop]: Path program histogram: [4, 4, 3, 3, 3, 3, 1, 1, 1] [2025-03-04 15:16:48,097 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 15:16:48,098 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 15:16:48,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 03:16:48 BasicIcfg [2025-03-04 15:16:48,101 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 15:16:48,101 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:16:48,101 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:16:48,101 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:16:48,102 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:16:30" (3/4) ... [2025-03-04 15:16:48,102 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 15:16:48,104 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure my_callback [2025-03-04 15:16:48,109 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 124 nodes and edges [2025-03-04 15:16:48,109 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2025-03-04 15:16:48,109 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-03-04 15:16:48,109 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-04 15:16:48,174 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 15:16:48,174 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 15:16:48,174 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:16:48,175 INFO L158 Benchmark]: Toolchain (without parser) took 19279.03ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 109.1MB in the beginning and 339.6MB in the end (delta: -230.5MB). Peak memory consumption was 195.0MB. Max. memory is 16.1GB. [2025-03-04 15:16:48,175 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:16:48,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.73ms. Allocated memory is still 142.6MB. Free memory was 108.6MB in the beginning and 78.2MB in the end (delta: 30.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-04 15:16:48,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.11ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 75.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:16:48,176 INFO L158 Benchmark]: Boogie Preprocessor took 58.26ms. Allocated memory is still 142.6MB. Free memory was 75.7MB in the beginning and 72.8MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:16:48,176 INFO L158 Benchmark]: IcfgBuilder took 616.57ms. Allocated memory is still 142.6MB. Free memory was 72.8MB in the beginning and 91.2MB in the end (delta: -18.5MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2025-03-04 15:16:48,176 INFO L158 Benchmark]: TraceAbstraction took 18042.23ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 90.6MB in the beginning and 343.8MB in the end (delta: -253.2MB). Peak memory consumption was 178.8MB. Max. memory is 16.1GB. [2025-03-04 15:16:48,176 INFO L158 Benchmark]: Witness Printer took 73.25ms. Allocated memory is still 570.4MB. Free memory was 343.8MB in the beginning and 339.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:16:48,177 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.73ms. Allocated memory is still 142.6MB. Free memory was 108.6MB in the beginning and 78.2MB in the end (delta: 30.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.11ms. Allocated memory is still 142.6MB. Free memory was 78.2MB in the beginning and 75.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.26ms. Allocated memory is still 142.6MB. Free memory was 75.7MB in the beginning and 72.8MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 616.57ms. Allocated memory is still 142.6MB. Free memory was 72.8MB in the beginning and 91.2MB in the end (delta: -18.5MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * TraceAbstraction took 18042.23ms. Allocated memory was 142.6MB in the beginning and 570.4MB in the end (delta: 427.8MB). Free memory was 90.6MB in the beginning and 343.8MB in the end (delta: -253.2MB). Peak memory consumption was 178.8MB. Max. memory is 16.1GB. * Witness Printer took 73.25ms. Allocated memory is still 570.4MB. Free memory was 343.8MB in the beginning and 339.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3914]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 3914]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 42 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 18.0s, OverallIterations: 23, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1653 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1652 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 279 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7828 IncrementalHoareTripleChecker+Invalid, 8107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 279 mSolverCounterUnsat, 0 mSDtfsCounter, 7828 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 388 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 351 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2865occurred in iteration=11, InterpolantAutomatonStates: 343, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 298 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 275 ConstructedInterpolants, 0 QuantifiedInterpolants, 2493 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 15:16:48,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE