./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 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-2_4-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:32:47,528 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:32:47,585 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:32:47,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:32:47,591 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:32:47,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:32:47,613 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:32:47,613 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:32:47,614 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:32:47,614 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:32:47,614 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:32:47,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:32:47,615 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:32:47,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:32:47,615 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:32:47,615 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:32:47,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:32:47,615 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:32:47,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:32:47,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:32:47,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:32:47,616 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:32:47,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:32:47,616 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:32:47,616 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:32:47,616 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:32:47,616 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:32:47,616 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:32:47,616 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:32:47,617 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:32:47,617 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:32:47,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:32:47,617 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:32:47,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:32:47,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:32:47,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:32:47,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:32:47,618 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:32:47,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:32:47,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:32:47,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:32:47,618 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:32:47,618 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:32:47,618 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:32:47,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:32:47,618 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 -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2025-03-17 19:32:47,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:32:47,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:32:47,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:32:47,860 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:32:47,861 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:32:47,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2025-03-17 19:32:49,004 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/674f133d5/a0750c5f80134159a99d0ade6af37d12/FLAGbaa4842b0 [2025-03-17 19:32:49,324 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:32:49,325 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2025-03-17 19:32:49,350 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/674f133d5/a0750c5f80134159a99d0ade6af37d12/FLAGbaa4842b0 [2025-03-17 19:32:49,362 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/674f133d5/a0750c5f80134159a99d0ade6af37d12 [2025-03-17 19:32:49,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:32:49,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:32:49,366 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:32:49,366 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:32:49,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:32:49,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4737a049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49, skipping insertion in model container [2025-03-17 19:32:49,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,417 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:32:49,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:32:49,669 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:32:49,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:32:49,757 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:32:49,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49 WrapperNode [2025-03-17 19:32:49,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:32:49,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:32:49,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:32:49,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:32:49,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,795 INFO L138 Inliner]: procedures = 248, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 154 [2025-03-17 19:32:49,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:32:49,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:32:49,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:32:49,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:32:49,802 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,805 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,816 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 15, 2]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 8, 2]. [2025-03-17 19:32:49,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,824 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:32:49,834 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:32:49,835 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:32:49,835 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:32:49,835 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49" (1/1) ... [2025-03-17 19:32:49,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:32:49,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:32:49,867 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) [2025-03-17 19:32:49,870 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 [2025-03-17 19:32:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-03-17 19:32:49,890 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-03-17 19:32:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-17 19:32:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 19:32:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 19:32:49,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-17 19:32:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 19:32:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 19:32:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 19:32:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 19:32:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 19:32:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 19:32:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 19:32:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 19:32:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:32:49,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 19:32:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 19:32:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 19:32:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:32:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:32:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 19:32:49,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:32:49,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:32:49,894 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:32:50,103 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:32:50,105 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:32:50,305 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:32:50,305 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:32:50,488 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:32:50,488 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:32:50,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:32:50 BoogieIcfgContainer [2025-03-17 19:32:50,490 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:32:50,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:32:50,492 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:32:50,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:32:50,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:32:49" (1/3) ... [2025-03-17 19:32:50,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb6e9b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:32:50, skipping insertion in model container [2025-03-17 19:32:50,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:32:49" (2/3) ... [2025-03-17 19:32:50,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb6e9b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:32:50, skipping insertion in model container [2025-03-17 19:32:50,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:32:50" (3/3) ... [2025-03-17 19:32:50,498 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2025-03-17 19:32:50,537 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:32:50,538 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_4-container_of.i that has 2 procedures, 31 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-17 19:32:50,539 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:32:50,580 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 19:32:50,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 44 transitions, 102 flow [2025-03-17 19:32:50,648 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2025-03-17 19:32:50,650 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 19:32:50,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 51 events. 2/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 124 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 28. Up to 3 conditions per place. [2025-03-17 19:32:50,653 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 44 transitions, 102 flow [2025-03-17 19:32:50,656 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 38 transitions, 85 flow [2025-03-17 19:32:50,663 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:32:50,675 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;@5d779b13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:32:50,675 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-17 19:32:50,685 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:32:50,685 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2025-03-17 19:32:50,685 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:32:50,685 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:32:50,686 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:32:50,686 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:32:50,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:32:50,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1702115293, now seen corresponding path program 1 times [2025-03-17 19:32:50,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:32:50,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017943284] [2025-03-17 19:32:50,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:32:50,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:32:50,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:32:50,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:32:50,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:32:50,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:32:51,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:32:51,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:32:51,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017943284] [2025-03-17 19:32:51,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017943284] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:32:51,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:32:51,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 19:32:51,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708114094] [2025-03-17 19:32:51,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:32:51,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:32:51,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:32:51,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:32:51,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:32:51,459 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:32:51,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:51,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:32:51,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:32:51,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:32:52,137 INFO L124 PetriNetUnfolderBase]: 2221/3630 cut-off events. [2025-03-17 19:32:52,138 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2025-03-17 19:32:52,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7280 conditions, 3630 events. 2221/3630 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 20013 event pairs, 1170 based on Foata normal form. 0/3166 useless extension candidates. Maximal degree in co-relation 7188. Up to 2402 conditions per place. [2025-03-17 19:32:52,164 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 85 selfloop transitions, 24 changer transitions 3/115 dead transitions. [2025-03-17 19:32:52,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 115 transitions, 478 flow [2025-03-17 19:32:52,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:32:52,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:32:52,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 176 transitions. [2025-03-17 19:32:52,175 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4 [2025-03-17 19:32:52,177 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 85 flow. Second operand 10 states and 176 transitions. [2025-03-17 19:32:52,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 115 transitions, 478 flow [2025-03-17 19:32:52,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 115 transitions, 467 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:32:52,190 INFO L231 Difference]: Finished difference. Result has 56 places, 63 transitions, 233 flow [2025-03-17 19:32:52,192 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=233, PETRI_PLACES=56, PETRI_TRANSITIONS=63} [2025-03-17 19:32:52,195 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 11 predicate places. [2025-03-17 19:32:52,195 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 63 transitions, 233 flow [2025-03-17 19:32:52,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:52,196 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:32:52,196 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:32:52,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:32:52,196 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:32:52,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:32:52,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1712564432, now seen corresponding path program 1 times [2025-03-17 19:32:52,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:32:52,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114429057] [2025-03-17 19:32:52,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:32:52,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:32:52,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:32:52,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:32:52,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:32:52,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:32:52,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:32:52,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:32:52,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114429057] [2025-03-17 19:32:52,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114429057] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:32:52,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:32:52,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 19:32:52,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715500979] [2025-03-17 19:32:52,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:32:52,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:32:52,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:32:52,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:32:52,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:32:52,615 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:32:52,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 63 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:52,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:32:52,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:32:52,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:32:53,195 INFO L124 PetriNetUnfolderBase]: 2697/4445 cut-off events. [2025-03-17 19:32:53,195 INFO L125 PetriNetUnfolderBase]: For 1560/1562 co-relation queries the response was YES. [2025-03-17 19:32:53,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10778 conditions, 4445 events. 2697/4445 cut-off events. For 1560/1562 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 26205 event pairs, 1670 based on Foata normal form. 2/4055 useless extension candidates. Maximal degree in co-relation 9198. Up to 3258 conditions per place. [2025-03-17 19:32:53,224 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 90 selfloop transitions, 33 changer transitions 5/131 dead transitions. [2025-03-17 19:32:53,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 131 transitions, 711 flow [2025-03-17 19:32:53,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:32:53,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:32:53,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 173 transitions. [2025-03-17 19:32:53,226 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3931818181818182 [2025-03-17 19:32:53,226 INFO L175 Difference]: Start difference. First operand has 56 places, 63 transitions, 233 flow. Second operand 10 states and 173 transitions. [2025-03-17 19:32:53,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 131 transitions, 711 flow [2025-03-17 19:32:53,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 131 transitions, 709 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:32:53,238 INFO L231 Difference]: Finished difference. Result has 68 places, 83 transitions, 424 flow [2025-03-17 19:32:53,238 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=424, PETRI_PLACES=68, PETRI_TRANSITIONS=83} [2025-03-17 19:32:53,238 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 23 predicate places. [2025-03-17 19:32:53,238 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 83 transitions, 424 flow [2025-03-17 19:32:53,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:53,239 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:32:53,239 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:32:53,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 19:32:53,239 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:32:53,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:32:53,239 INFO L85 PathProgramCache]: Analyzing trace with hash 58345390, now seen corresponding path program 1 times [2025-03-17 19:32:53,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:32:53,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002893628] [2025-03-17 19:32:53,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:32:53,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:32:53,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:32:53,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:32:53,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:32:53,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:32:53,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:32:53,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:32:53,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002893628] [2025-03-17 19:32:53,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002893628] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:32:53,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:32:53,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 19:32:53,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640371560] [2025-03-17 19:32:53,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:32:53,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:32:53,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:32:53,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:32:53,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:32:53,594 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:32:53,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 83 transitions, 424 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:53,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:32:53,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:32:53,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:32:54,244 INFO L124 PetriNetUnfolderBase]: 2901/4882 cut-off events. [2025-03-17 19:32:54,244 INFO L125 PetriNetUnfolderBase]: For 3775/3783 co-relation queries the response was YES. [2025-03-17 19:32:54,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13610 conditions, 4882 events. 2901/4882 cut-off events. For 3775/3783 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 30679 event pairs, 794 based on Foata normal form. 72/4678 useless extension candidates. Maximal degree in co-relation 12595. Up to 3792 conditions per place. [2025-03-17 19:32:54,270 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 171 selfloop transitions, 30 changer transitions 3/207 dead transitions. [2025-03-17 19:32:54,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 207 transitions, 1410 flow [2025-03-17 19:32:54,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:32:54,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:32:54,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 185 transitions. [2025-03-17 19:32:54,272 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42045454545454547 [2025-03-17 19:32:54,272 INFO L175 Difference]: Start difference. First operand has 68 places, 83 transitions, 424 flow. Second operand 10 states and 185 transitions. [2025-03-17 19:32:54,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 207 transitions, 1410 flow [2025-03-17 19:32:54,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 207 transitions, 1410 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:32:54,286 INFO L231 Difference]: Finished difference. Result has 84 places, 105 transitions, 653 flow [2025-03-17 19:32:54,286 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=653, PETRI_PLACES=84, PETRI_TRANSITIONS=105} [2025-03-17 19:32:54,287 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2025-03-17 19:32:54,287 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 105 transitions, 653 flow [2025-03-17 19:32:54,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:54,287 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:32:54,287 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:32:54,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:32:54,287 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:32:54,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:32:54,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1759773525, now seen corresponding path program 1 times [2025-03-17 19:32:54,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:32:54,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508181800] [2025-03-17 19:32:54,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:32:54,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:32:54,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:32:54,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:32:54,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:32:54,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:32:54,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:32:54,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:32:54,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508181800] [2025-03-17 19:32:54,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508181800] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:32:54,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:32:54,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:32:54,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792186379] [2025-03-17 19:32:54,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:32:54,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:32:54,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:32:54,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:32:54,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:32:54,367 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 44 [2025-03-17 19:32:54,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 105 transitions, 653 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:54,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:32:54,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 44 [2025-03-17 19:32:54,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:32:54,725 INFO L124 PetriNetUnfolderBase]: 2261/3751 cut-off events. [2025-03-17 19:32:54,726 INFO L125 PetriNetUnfolderBase]: For 4588/4591 co-relation queries the response was YES. [2025-03-17 19:32:54,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11972 conditions, 3751 events. 2261/3751 cut-off events. For 4588/4591 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 22281 event pairs, 696 based on Foata normal form. 1/3536 useless extension candidates. Maximal degree in co-relation 11079. Up to 3006 conditions per place. [2025-03-17 19:32:54,757 INFO L140 encePairwiseOnDemand]: 41/44 looper letters, 137 selfloop transitions, 14 changer transitions 0/153 dead transitions. [2025-03-17 19:32:54,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 153 transitions, 1239 flow [2025-03-17 19:32:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:32:54,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:32:54,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2025-03-17 19:32:54,759 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2025-03-17 19:32:54,760 INFO L175 Difference]: Start difference. First operand has 84 places, 105 transitions, 653 flow. Second operand 4 states and 90 transitions. [2025-03-17 19:32:54,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 153 transitions, 1239 flow [2025-03-17 19:32:54,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 153 transitions, 1227 flow, removed 5 selfloop flow, removed 1 redundant places. [2025-03-17 19:32:54,774 INFO L231 Difference]: Finished difference. Result has 83 places, 93 transitions, 603 flow [2025-03-17 19:32:54,774 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=603, PETRI_PLACES=83, PETRI_TRANSITIONS=93} [2025-03-17 19:32:54,775 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 38 predicate places. [2025-03-17 19:32:54,775 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 93 transitions, 603 flow [2025-03-17 19:32:54,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:54,775 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:32:54,775 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:32:54,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 19:32:54,775 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:32:54,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:32:54,776 INFO L85 PathProgramCache]: Analyzing trace with hash 77370374, now seen corresponding path program 1 times [2025-03-17 19:32:54,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:32:54,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893180891] [2025-03-17 19:32:54,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:32:54,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:32:54,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:32:54,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:32:54,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:32:54,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:32:55,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:32:55,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:32:55,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893180891] [2025-03-17 19:32:55,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893180891] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:32:55,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:32:55,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 19:32:55,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846130813] [2025-03-17 19:32:55,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:32:55,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:32:55,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:32:55,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:32:55,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:32:55,202 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:32:55,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 93 transitions, 603 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:55,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:32:55,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:32:55,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:32:55,876 INFO L124 PetriNetUnfolderBase]: 2559/4269 cut-off events. [2025-03-17 19:32:55,876 INFO L125 PetriNetUnfolderBase]: For 5507/5515 co-relation queries the response was YES. [2025-03-17 19:32:55,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13624 conditions, 4269 events. 2559/4269 cut-off events. For 5507/5515 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 24669 event pairs, 1244 based on Foata normal form. 56/4093 useless extension candidates. Maximal degree in co-relation 12573. Up to 2627 conditions per place. [2025-03-17 19:32:55,900 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 130 selfloop transitions, 50 changer transitions 4/186 dead transitions. [2025-03-17 19:32:55,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 186 transitions, 1486 flow [2025-03-17 19:32:55,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 19:32:55,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-17 19:32:55,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 206 transitions. [2025-03-17 19:32:55,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36013986013986016 [2025-03-17 19:32:55,902 INFO L175 Difference]: Start difference. First operand has 83 places, 93 transitions, 603 flow. Second operand 13 states and 206 transitions. [2025-03-17 19:32:55,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 186 transitions, 1486 flow [2025-03-17 19:32:55,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 186 transitions, 1453 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:32:55,913 INFO L231 Difference]: Finished difference. Result has 99 places, 114 transitions, 872 flow [2025-03-17 19:32:55,914 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=872, PETRI_PLACES=99, PETRI_TRANSITIONS=114} [2025-03-17 19:32:55,914 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 54 predicate places. [2025-03-17 19:32:55,914 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 114 transitions, 872 flow [2025-03-17 19:32:55,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:55,915 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:32:55,915 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:32:55,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:32:55,915 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:32:55,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:32:55,915 INFO L85 PathProgramCache]: Analyzing trace with hash -2051994510, now seen corresponding path program 2 times [2025-03-17 19:32:55,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:32:55,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538965519] [2025-03-17 19:32:55,916 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:32:55,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:32:55,929 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:32:55,937 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:32:55,938 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:32:55,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:32:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:32:56,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:32:56,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538965519] [2025-03-17 19:32:56,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538965519] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:32:56,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:32:56,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 19:32:56,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264635187] [2025-03-17 19:32:56,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:32:56,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:32:56,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:32:56,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:32:56,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:32:56,242 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:32:56,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 114 transitions, 872 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:56,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:32:56,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:32:56,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:32:56,941 INFO L124 PetriNetUnfolderBase]: 2889/4918 cut-off events. [2025-03-17 19:32:56,941 INFO L125 PetriNetUnfolderBase]: For 8630/8638 co-relation queries the response was YES. [2025-03-17 19:32:56,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17541 conditions, 4918 events. 2889/4918 cut-off events. For 8630/8638 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 30898 event pairs, 591 based on Foata normal form. 58/4702 useless extension candidates. Maximal degree in co-relation 16409. Up to 2006 conditions per place. [2025-03-17 19:32:56,965 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 227 selfloop transitions, 50 changer transitions 5/284 dead transitions. [2025-03-17 19:32:56,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 284 transitions, 2597 flow [2025-03-17 19:32:56,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 19:32:56,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-17 19:32:56,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 213 transitions. [2025-03-17 19:32:56,967 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4034090909090909 [2025-03-17 19:32:56,967 INFO L175 Difference]: Start difference. First operand has 99 places, 114 transitions, 872 flow. Second operand 12 states and 213 transitions. [2025-03-17 19:32:56,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 284 transitions, 2597 flow [2025-03-17 19:32:56,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 284 transitions, 2499 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-03-17 19:32:56,993 INFO L231 Difference]: Finished difference. Result has 108 places, 135 transitions, 1125 flow [2025-03-17 19:32:56,993 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1125, PETRI_PLACES=108, PETRI_TRANSITIONS=135} [2025-03-17 19:32:56,994 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 63 predicate places. [2025-03-17 19:32:56,995 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 135 transitions, 1125 flow [2025-03-17 19:32:56,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:56,995 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:32:56,995 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:32:56,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:32:56,995 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:32:56,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:32:56,996 INFO L85 PathProgramCache]: Analyzing trace with hash 464925914, now seen corresponding path program 3 times [2025-03-17 19:32:56,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:32:56,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829462621] [2025-03-17 19:32:56,996 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 19:32:56,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:32:57,013 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:32:57,023 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:32:57,024 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 19:32:57,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:32:57,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:32:57,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:32:57,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829462621] [2025-03-17 19:32:57,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829462621] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:32:57,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:32:57,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-17 19:32:57,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13963085] [2025-03-17 19:32:57,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:32:57,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 19:32:57,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:32:57,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 19:32:57,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-17 19:32:57,253 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:32:57,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 135 transitions, 1125 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:57,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:32:57,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:32:57,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:32:58,387 INFO L124 PetriNetUnfolderBase]: 5390/9243 cut-off events. [2025-03-17 19:32:58,387 INFO L125 PetriNetUnfolderBase]: For 21476/21484 co-relation queries the response was YES. [2025-03-17 19:32:58,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35395 conditions, 9243 events. 5390/9243 cut-off events. For 21476/21484 co-relation queries the response was YES. Maximal size of possible extension queue 432. Compared 65196 event pairs, 2117 based on Foata normal form. 56/8747 useless extension candidates. Maximal degree in co-relation 33460. Up to 3802 conditions per place. [2025-03-17 19:32:58,447 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 309 selfloop transitions, 61 changer transitions 3/375 dead transitions. [2025-03-17 19:32:58,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 375 transitions, 3633 flow [2025-03-17 19:32:58,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 19:32:58,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-17 19:32:58,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 227 transitions. [2025-03-17 19:32:58,450 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4690082644628099 [2025-03-17 19:32:58,450 INFO L175 Difference]: Start difference. First operand has 108 places, 135 transitions, 1125 flow. Second operand 11 states and 227 transitions. [2025-03-17 19:32:58,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 375 transitions, 3633 flow [2025-03-17 19:32:58,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 375 transitions, 3560 flow, removed 21 selfloop flow, removed 4 redundant places. [2025-03-17 19:32:58,509 INFO L231 Difference]: Finished difference. Result has 121 places, 164 transitions, 1612 flow [2025-03-17 19:32:58,510 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1087, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1612, PETRI_PLACES=121, PETRI_TRANSITIONS=164} [2025-03-17 19:32:58,510 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 76 predicate places. [2025-03-17 19:32:58,510 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 164 transitions, 1612 flow [2025-03-17 19:32:58,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:58,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:32:58,511 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:32:58,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 19:32:58,511 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:32:58,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:32:58,511 INFO L85 PathProgramCache]: Analyzing trace with hash 23273424, now seen corresponding path program 4 times [2025-03-17 19:32:58,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:32:58,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766110287] [2025-03-17 19:32:58,512 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 19:32:58,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:32:58,527 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 16 statements into 2 equivalence classes. [2025-03-17 19:32:58,533 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:32:58,534 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 19:32:58,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:32:58,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:32:58,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:32:58,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766110287] [2025-03-17 19:32:58,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766110287] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:32:58,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:32:58,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 19:32:58,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426698013] [2025-03-17 19:32:58,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:32:58,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 19:32:58,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:32:58,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 19:32:58,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 19:32:58,816 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:32:58,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 164 transitions, 1612 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:32:58,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:32:58,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:32:58,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:00,013 INFO L124 PetriNetUnfolderBase]: 5982/10266 cut-off events. [2025-03-17 19:33:00,013 INFO L125 PetriNetUnfolderBase]: For 28779/28787 co-relation queries the response was YES. [2025-03-17 19:33:00,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41216 conditions, 10266 events. 5982/10266 cut-off events. For 28779/28787 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 72996 event pairs, 3293 based on Foata normal form. 100/9772 useless extension candidates. Maximal degree in co-relation 39199. Up to 7099 conditions per place. [2025-03-17 19:33:00,167 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 214 selfloop transitions, 90 changer transitions 16/322 dead transitions. [2025-03-17 19:33:00,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 322 transitions, 3704 flow [2025-03-17 19:33:00,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 19:33:00,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-17 19:33:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 231 transitions. [2025-03-17 19:33:00,169 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35 [2025-03-17 19:33:00,170 INFO L175 Difference]: Start difference. First operand has 121 places, 164 transitions, 1612 flow. Second operand 15 states and 231 transitions. [2025-03-17 19:33:00,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 322 transitions, 3704 flow [2025-03-17 19:33:00,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 322 transitions, 3565 flow, removed 28 selfloop flow, removed 3 redundant places. [2025-03-17 19:33:00,271 INFO L231 Difference]: Finished difference. Result has 139 places, 200 transitions, 2194 flow [2025-03-17 19:33:00,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1540, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2194, PETRI_PLACES=139, PETRI_TRANSITIONS=200} [2025-03-17 19:33:00,274 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 94 predicate places. [2025-03-17 19:33:00,275 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 200 transitions, 2194 flow [2025-03-17 19:33:00,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:00,275 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:00,275 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:00,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 19:33:00,275 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:00,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:00,276 INFO L85 PathProgramCache]: Analyzing trace with hash -290151718, now seen corresponding path program 5 times [2025-03-17 19:33:00,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:00,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017554183] [2025-03-17 19:33:00,276 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 19:33:00,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:00,292 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:33:00,298 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:33:00,298 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:33:00,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:00,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:00,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017554183] [2025-03-17 19:33:00,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017554183] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:00,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:00,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 19:33:00,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104536962] [2025-03-17 19:33:00,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:00,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:33:00,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:00,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:33:00,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:33:00,564 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:00,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 200 transitions, 2194 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:00,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:00,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:00,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:01,739 INFO L124 PetriNetUnfolderBase]: 4302/7534 cut-off events. [2025-03-17 19:33:01,739 INFO L125 PetriNetUnfolderBase]: For 26466/26474 co-relation queries the response was YES. [2025-03-17 19:33:01,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32515 conditions, 7534 events. 4302/7534 cut-off events. For 26466/26474 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 52070 event pairs, 1348 based on Foata normal form. 108/7255 useless extension candidates. Maximal degree in co-relation 30744. Up to 4554 conditions per place. [2025-03-17 19:33:01,775 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 300 selfloop transitions, 72 changer transitions 2/376 dead transitions. [2025-03-17 19:33:01,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 376 transitions, 4301 flow [2025-03-17 19:33:01,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 19:33:01,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-17 19:33:01,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 221 transitions. [2025-03-17 19:33:01,776 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45661157024793386 [2025-03-17 19:33:01,777 INFO L175 Difference]: Start difference. First operand has 139 places, 200 transitions, 2194 flow. Second operand 11 states and 221 transitions. [2025-03-17 19:33:01,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 376 transitions, 4301 flow [2025-03-17 19:33:01,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 376 transitions, 4099 flow, removed 23 selfloop flow, removed 7 redundant places. [2025-03-17 19:33:01,858 INFO L231 Difference]: Finished difference. Result has 148 places, 206 transitions, 2313 flow [2025-03-17 19:33:01,858 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=1961, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2313, PETRI_PLACES=148, PETRI_TRANSITIONS=206} [2025-03-17 19:33:01,859 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 103 predicate places. [2025-03-17 19:33:01,859 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 206 transitions, 2313 flow [2025-03-17 19:33:01,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:01,859 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:01,859 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:01,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 19:33:01,859 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:01,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:01,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1381256400, now seen corresponding path program 6 times [2025-03-17 19:33:01,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:01,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950313353] [2025-03-17 19:33:01,860 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 19:33:01,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:01,870 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:33:01,874 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:33:01,874 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-17 19:33:01,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:02,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:02,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:02,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950313353] [2025-03-17 19:33:02,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950313353] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:02,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:02,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 19:33:02,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64825898] [2025-03-17 19:33:02,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:02,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 19:33:02,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:02,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 19:33:02,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 19:33:02,100 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:02,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 206 transitions, 2313 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:02,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:02,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:02,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:03,374 INFO L124 PetriNetUnfolderBase]: 4542/8011 cut-off events. [2025-03-17 19:33:03,374 INFO L125 PetriNetUnfolderBase]: For 32073/32081 co-relation queries the response was YES. [2025-03-17 19:33:03,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34994 conditions, 8011 events. 4542/8011 cut-off events. For 32073/32081 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 55647 event pairs, 2473 based on Foata normal form. 100/7736 useless extension candidates. Maximal degree in co-relation 33058. Up to 5355 conditions per place. [2025-03-17 19:33:03,429 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 233 selfloop transitions, 124 changer transitions 15/374 dead transitions. [2025-03-17 19:33:03,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 374 transitions, 4674 flow [2025-03-17 19:33:03,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-17 19:33:03,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-03-17 19:33:03,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 285 transitions. [2025-03-17 19:33:03,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3409090909090909 [2025-03-17 19:33:03,430 INFO L175 Difference]: Start difference. First operand has 148 places, 206 transitions, 2313 flow. Second operand 19 states and 285 transitions. [2025-03-17 19:33:03,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 374 transitions, 4674 flow [2025-03-17 19:33:03,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 374 transitions, 4494 flow, removed 34 selfloop flow, removed 4 redundant places. [2025-03-17 19:33:03,519 INFO L231 Difference]: Finished difference. Result has 169 places, 246 transitions, 3013 flow [2025-03-17 19:33:03,519 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=2221, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3013, PETRI_PLACES=169, PETRI_TRANSITIONS=246} [2025-03-17 19:33:03,520 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 124 predicate places. [2025-03-17 19:33:03,520 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 246 transitions, 3013 flow [2025-03-17 19:33:03,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:03,520 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:03,520 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:03,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 19:33:03,520 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:03,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:03,521 INFO L85 PathProgramCache]: Analyzing trace with hash -575586538, now seen corresponding path program 1 times [2025-03-17 19:33:03,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:03,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300191146] [2025-03-17 19:33:03,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:33:03,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:03,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:33:03,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:33:03,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:33:03,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:03,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:03,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:03,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300191146] [2025-03-17 19:33:03,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300191146] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:03,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:03,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 19:33:03,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981416115] [2025-03-17 19:33:03,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:03,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:33:03,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:03,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:33:03,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:33:03,792 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:03,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 246 transitions, 3013 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:03,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:03,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:03,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:04,998 INFO L124 PetriNetUnfolderBase]: 4853/8594 cut-off events. [2025-03-17 19:33:04,999 INFO L125 PetriNetUnfolderBase]: For 40992/40992 co-relation queries the response was YES. [2025-03-17 19:33:05,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39785 conditions, 8594 events. 4853/8594 cut-off events. For 40992/40992 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 60613 event pairs, 2805 based on Foata normal form. 50/8245 useless extension candidates. Maximal degree in co-relation 38193. Up to 6253 conditions per place. [2025-03-17 19:33:05,052 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 242 selfloop transitions, 121 changer transitions 12/377 dead transitions. [2025-03-17 19:33:05,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 377 transitions, 5054 flow [2025-03-17 19:33:05,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 19:33:05,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-17 19:33:05,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 203 transitions. [2025-03-17 19:33:05,053 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3548951048951049 [2025-03-17 19:33:05,053 INFO L175 Difference]: Start difference. First operand has 169 places, 246 transitions, 3013 flow. Second operand 13 states and 203 transitions. [2025-03-17 19:33:05,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 377 transitions, 5054 flow [2025-03-17 19:33:05,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 377 transitions, 4819 flow, removed 34 selfloop flow, removed 9 redundant places. [2025-03-17 19:33:05,173 INFO L231 Difference]: Finished difference. Result has 178 places, 284 transitions, 3586 flow [2025-03-17 19:33:05,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=2824, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3586, PETRI_PLACES=178, PETRI_TRANSITIONS=284} [2025-03-17 19:33:05,174 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 133 predicate places. [2025-03-17 19:33:05,174 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 284 transitions, 3586 flow [2025-03-17 19:33:05,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:05,174 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:05,174 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:05,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 19:33:05,174 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:05,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:05,175 INFO L85 PathProgramCache]: Analyzing trace with hash -178742344, now seen corresponding path program 2 times [2025-03-17 19:33:05,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:05,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73575080] [2025-03-17 19:33:05,175 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:33:05,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:05,187 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:33:05,193 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:33:05,193 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:33:05,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:05,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:05,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:05,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73575080] [2025-03-17 19:33:05,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73575080] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:05,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:05,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 19:33:05,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354042898] [2025-03-17 19:33:05,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:05,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:33:05,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:05,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:33:05,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:33:05,441 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:05,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 284 transitions, 3586 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:05,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:05,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:05,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:07,022 INFO L124 PetriNetUnfolderBase]: 5106/9054 cut-off events. [2025-03-17 19:33:07,023 INFO L125 PetriNetUnfolderBase]: For 53967/53967 co-relation queries the response was YES. [2025-03-17 19:33:07,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45450 conditions, 9054 events. 5106/9054 cut-off events. For 53967/53967 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 64828 event pairs, 2966 based on Foata normal form. 40/8672 useless extension candidates. Maximal degree in co-relation 43732. Up to 5909 conditions per place. [2025-03-17 19:33:07,099 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 298 selfloop transitions, 141 changer transitions 13/454 dead transitions. [2025-03-17 19:33:07,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 454 transitions, 6302 flow [2025-03-17 19:33:07,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 19:33:07,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-17 19:33:07,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 229 transitions. [2025-03-17 19:33:07,101 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.346969696969697 [2025-03-17 19:33:07,101 INFO L175 Difference]: Start difference. First operand has 178 places, 284 transitions, 3586 flow. Second operand 15 states and 229 transitions. [2025-03-17 19:33:07,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 454 transitions, 6302 flow [2025-03-17 19:33:07,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 454 transitions, 6153 flow, removed 14 selfloop flow, removed 5 redundant places. [2025-03-17 19:33:07,301 INFO L231 Difference]: Finished difference. Result has 192 places, 325 transitions, 4292 flow [2025-03-17 19:33:07,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=3455, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4292, PETRI_PLACES=192, PETRI_TRANSITIONS=325} [2025-03-17 19:33:07,302 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 147 predicate places. [2025-03-17 19:33:07,302 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 325 transitions, 4292 flow [2025-03-17 19:33:07,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:07,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:07,302 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:07,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 19:33:07,302 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:07,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:07,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1437061104, now seen corresponding path program 1 times [2025-03-17 19:33:07,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:07,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561780550] [2025-03-17 19:33:07,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:33:07,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:07,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:33:07,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:33:07,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:33:07,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:07,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:07,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:07,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561780550] [2025-03-17 19:33:07,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561780550] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:07,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:07,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 19:33:07,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562616967] [2025-03-17 19:33:07,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:07,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:33:07,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:07,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:33:07,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:33:07,567 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:07,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 325 transitions, 4292 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:07,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:07,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:07,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:09,060 INFO L124 PetriNetUnfolderBase]: 5378/9581 cut-off events. [2025-03-17 19:33:09,060 INFO L125 PetriNetUnfolderBase]: For 69728/69736 co-relation queries the response was YES. [2025-03-17 19:33:09,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51015 conditions, 9581 events. 5378/9581 cut-off events. For 69728/69736 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 70400 event pairs, 2028 based on Foata normal form. 76/9204 useless extension candidates. Maximal degree in co-relation 49192. Up to 3835 conditions per place. [2025-03-17 19:33:09,131 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 481 selfloop transitions, 83 changer transitions 8/574 dead transitions. [2025-03-17 19:33:09,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 574 transitions, 8286 flow [2025-03-17 19:33:09,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 19:33:09,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-17 19:33:09,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 228 transitions. [2025-03-17 19:33:09,132 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4318181818181818 [2025-03-17 19:33:09,133 INFO L175 Difference]: Start difference. First operand has 192 places, 325 transitions, 4292 flow. Second operand 12 states and 228 transitions. [2025-03-17 19:33:09,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 574 transitions, 8286 flow [2025-03-17 19:33:09,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 574 transitions, 7919 flow, removed 89 selfloop flow, removed 6 redundant places. [2025-03-17 19:33:09,370 INFO L231 Difference]: Finished difference. Result has 202 places, 336 transitions, 4425 flow [2025-03-17 19:33:09,371 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=4063, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4425, PETRI_PLACES=202, PETRI_TRANSITIONS=336} [2025-03-17 19:33:09,371 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 157 predicate places. [2025-03-17 19:33:09,371 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 336 transitions, 4425 flow [2025-03-17 19:33:09,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:09,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:09,371 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:09,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 19:33:09,371 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:09,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:09,372 INFO L85 PathProgramCache]: Analyzing trace with hash -715098608, now seen corresponding path program 2 times [2025-03-17 19:33:09,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:09,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427965126] [2025-03-17 19:33:09,372 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:33:09,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:09,382 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:33:09,385 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:33:09,385 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:33:09,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:09,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:09,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:09,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427965126] [2025-03-17 19:33:09,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427965126] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:09,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:09,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 19:33:09,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462062611] [2025-03-17 19:33:09,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:09,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:33:09,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:09,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:33:09,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:33:09,549 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:09,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 336 transitions, 4425 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:09,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:09,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:09,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:11,003 INFO L124 PetriNetUnfolderBase]: 5595/10184 cut-off events. [2025-03-17 19:33:11,003 INFO L125 PetriNetUnfolderBase]: For 77906/77914 co-relation queries the response was YES. [2025-03-17 19:33:11,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54884 conditions, 10184 events. 5595/10184 cut-off events. For 77906/77914 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 77512 event pairs, 2760 based on Foata normal form. 140/9826 useless extension candidates. Maximal degree in co-relation 53070. Up to 5019 conditions per place. [2025-03-17 19:33:11,084 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 451 selfloop transitions, 87 changer transitions 6/546 dead transitions. [2025-03-17 19:33:11,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 546 transitions, 7577 flow [2025-03-17 19:33:11,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 19:33:11,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-17 19:33:11,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 241 transitions. [2025-03-17 19:33:11,086 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4564393939393939 [2025-03-17 19:33:11,086 INFO L175 Difference]: Start difference. First operand has 202 places, 336 transitions, 4425 flow. Second operand 12 states and 241 transitions. [2025-03-17 19:33:11,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 546 transitions, 7577 flow [2025-03-17 19:33:11,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 546 transitions, 7375 flow, removed 41 selfloop flow, removed 7 redundant places. [2025-03-17 19:33:11,320 INFO L231 Difference]: Finished difference. Result has 211 places, 331 transitions, 4477 flow [2025-03-17 19:33:11,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=4072, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4477, PETRI_PLACES=211, PETRI_TRANSITIONS=331} [2025-03-17 19:33:11,321 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 166 predicate places. [2025-03-17 19:33:11,321 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 331 transitions, 4477 flow [2025-03-17 19:33:11,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:11,321 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:11,321 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:11,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 19:33:11,321 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:11,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:11,322 INFO L85 PathProgramCache]: Analyzing trace with hash -764311142, now seen corresponding path program 2 times [2025-03-17 19:33:11,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:11,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465227281] [2025-03-17 19:33:11,322 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:33:11,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:11,331 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:33:11,334 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:33:11,335 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:33:11,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:11,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:11,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:11,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465227281] [2025-03-17 19:33:11,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465227281] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:11,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:11,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 19:33:11,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311418139] [2025-03-17 19:33:11,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:11,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:33:11,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:11,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:33:11,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:33:11,544 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:11,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 331 transitions, 4477 flow. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:11,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:11,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:11,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:13,125 INFO L124 PetriNetUnfolderBase]: 5936/10873 cut-off events. [2025-03-17 19:33:13,125 INFO L125 PetriNetUnfolderBase]: For 85955/85963 co-relation queries the response was YES. [2025-03-17 19:33:13,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57907 conditions, 10873 events. 5936/10873 cut-off events. For 85955/85963 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 83416 event pairs, 3857 based on Foata normal form. 56/10401 useless extension candidates. Maximal degree in co-relation 55638. Up to 7711 conditions per place. [2025-03-17 19:33:13,211 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 310 selfloop transitions, 156 changer transitions 15/483 dead transitions. [2025-03-17 19:33:13,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 483 transitions, 7363 flow [2025-03-17 19:33:13,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 19:33:13,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-17 19:33:13,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 226 transitions. [2025-03-17 19:33:13,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3424242424242424 [2025-03-17 19:33:13,213 INFO L175 Difference]: Start difference. First operand has 211 places, 331 transitions, 4477 flow. Second operand 15 states and 226 transitions. [2025-03-17 19:33:13,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 483 transitions, 7363 flow [2025-03-17 19:33:13,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 483 transitions, 7186 flow, removed 39 selfloop flow, removed 5 redundant places. [2025-03-17 19:33:13,441 INFO L231 Difference]: Finished difference. Result has 224 places, 365 transitions, 5232 flow [2025-03-17 19:33:13,441 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=4374, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=5232, PETRI_PLACES=224, PETRI_TRANSITIONS=365} [2025-03-17 19:33:13,441 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 179 predicate places. [2025-03-17 19:33:13,441 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 365 transitions, 5232 flow [2025-03-17 19:33:13,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:13,442 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:13,442 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:13,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 19:33:13,442 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:13,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:13,442 INFO L85 PathProgramCache]: Analyzing trace with hash 60141796, now seen corresponding path program 3 times [2025-03-17 19:33:13,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:13,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096787610] [2025-03-17 19:33:13,442 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 19:33:13,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:13,451 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:33:13,455 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:33:13,455 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 19:33:13,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:13,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:13,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:13,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096787610] [2025-03-17 19:33:13,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096787610] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:13,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:13,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 19:33:13,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543940200] [2025-03-17 19:33:13,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:13,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:33:13,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:13,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:33:13,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:33:13,612 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:13,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 365 transitions, 5232 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:13,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:13,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:13,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:14,956 INFO L124 PetriNetUnfolderBase]: 3755/7153 cut-off events. [2025-03-17 19:33:14,956 INFO L125 PetriNetUnfolderBase]: For 61715/61715 co-relation queries the response was YES. [2025-03-17 19:33:14,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38521 conditions, 7153 events. 3755/7153 cut-off events. For 61715/61715 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 52944 event pairs, 1645 based on Foata normal form. 136/7005 useless extension candidates. Maximal degree in co-relation 36063. Up to 3953 conditions per place. [2025-03-17 19:33:15,018 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 410 selfloop transitions, 109 changer transitions 4/525 dead transitions. [2025-03-17 19:33:15,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 525 transitions, 8030 flow [2025-03-17 19:33:15,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 19:33:15,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-17 19:33:15,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 223 transitions. [2025-03-17 19:33:15,019 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42234848484848486 [2025-03-17 19:33:15,019 INFO L175 Difference]: Start difference. First operand has 224 places, 365 transitions, 5232 flow. Second operand 12 states and 223 transitions. [2025-03-17 19:33:15,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 525 transitions, 8030 flow [2025-03-17 19:33:15,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 525 transitions, 7727 flow, removed 74 selfloop flow, removed 6 redundant places. [2025-03-17 19:33:15,204 INFO L231 Difference]: Finished difference. Result has 234 places, 341 transitions, 5111 flow [2025-03-17 19:33:15,204 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=4647, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5111, PETRI_PLACES=234, PETRI_TRANSITIONS=341} [2025-03-17 19:33:15,205 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 189 predicate places. [2025-03-17 19:33:15,205 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 341 transitions, 5111 flow [2025-03-17 19:33:15,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:15,205 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:15,205 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:15,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 19:33:15,205 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:15,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:15,206 INFO L85 PathProgramCache]: Analyzing trace with hash -2072823923, now seen corresponding path program 1 times [2025-03-17 19:33:15,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:15,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757619035] [2025-03-17 19:33:15,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:33:15,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:15,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:33:15,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:33:15,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:33:15,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:15,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:15,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:15,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757619035] [2025-03-17 19:33:15,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757619035] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:15,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:15,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 19:33:15,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120287362] [2025-03-17 19:33:15,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:15,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:33:15,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:15,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:33:15,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:33:15,476 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:15,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 341 transitions, 5111 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:15,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:15,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:15,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:17,502 INFO L124 PetriNetUnfolderBase]: 6207/12230 cut-off events. [2025-03-17 19:33:17,502 INFO L125 PetriNetUnfolderBase]: For 98600/98600 co-relation queries the response was YES. [2025-03-17 19:33:17,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61095 conditions, 12230 events. 6207/12230 cut-off events. For 98600/98600 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 105191 event pairs, 1864 based on Foata normal form. 81/11819 useless extension candidates. Maximal degree in co-relation 57675. Up to 3462 conditions per place. [2025-03-17 19:33:17,592 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 463 selfloop transitions, 92 changer transitions 17/574 dead transitions. [2025-03-17 19:33:17,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 574 transitions, 8857 flow [2025-03-17 19:33:17,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 19:33:17,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-17 19:33:17,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 219 transitions. [2025-03-17 19:33:17,593 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4524793388429752 [2025-03-17 19:33:17,593 INFO L175 Difference]: Start difference. First operand has 234 places, 341 transitions, 5111 flow. Second operand 11 states and 219 transitions. [2025-03-17 19:33:17,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 574 transitions, 8857 flow [2025-03-17 19:33:17,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 574 transitions, 8651 flow, removed 54 selfloop flow, removed 5 redundant places. [2025-03-17 19:33:17,886 INFO L231 Difference]: Finished difference. Result has 244 places, 359 transitions, 5486 flow [2025-03-17 19:33:17,886 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=4998, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5486, PETRI_PLACES=244, PETRI_TRANSITIONS=359} [2025-03-17 19:33:17,887 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 199 predicate places. [2025-03-17 19:33:17,887 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 359 transitions, 5486 flow [2025-03-17 19:33:17,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:17,887 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:17,887 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:17,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 19:33:17,887 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:17,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:17,887 INFO L85 PathProgramCache]: Analyzing trace with hash 890665677, now seen corresponding path program 1 times [2025-03-17 19:33:17,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:17,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889571278] [2025-03-17 19:33:17,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:33:17,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:17,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:33:17,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:33:17,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:33:17,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:18,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:18,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:18,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889571278] [2025-03-17 19:33:18,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889571278] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:18,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:18,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 19:33:18,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86633188] [2025-03-17 19:33:18,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:18,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:33:18,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:18,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:33:18,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:33:18,130 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:18,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 359 transitions, 5486 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:18,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:18,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:18,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:20,908 INFO L124 PetriNetUnfolderBase]: 8843/17914 cut-off events. [2025-03-17 19:33:20,908 INFO L125 PetriNetUnfolderBase]: For 160429/160437 co-relation queries the response was YES. [2025-03-17 19:33:21,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93475 conditions, 17914 events. 8843/17914 cut-off events. For 160429/160437 co-relation queries the response was YES. Maximal size of possible extension queue 1010. Compared 169399 event pairs, 3442 based on Foata normal form. 175/17375 useless extension candidates. Maximal degree in co-relation 84810. Up to 7200 conditions per place. [2025-03-17 19:33:21,097 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 438 selfloop transitions, 124 changer transitions 35/599 dead transitions. [2025-03-17 19:33:21,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 599 transitions, 9434 flow [2025-03-17 19:33:21,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 19:33:21,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-17 19:33:21,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 226 transitions. [2025-03-17 19:33:21,098 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4669421487603306 [2025-03-17 19:33:21,098 INFO L175 Difference]: Start difference. First operand has 244 places, 359 transitions, 5486 flow. Second operand 11 states and 226 transitions. [2025-03-17 19:33:21,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 599 transitions, 9434 flow [2025-03-17 19:33:21,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 599 transitions, 9189 flow, removed 49 selfloop flow, removed 6 redundant places. [2025-03-17 19:33:21,741 INFO L231 Difference]: Finished difference. Result has 253 places, 385 transitions, 6111 flow [2025-03-17 19:33:21,741 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=5341, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6111, PETRI_PLACES=253, PETRI_TRANSITIONS=385} [2025-03-17 19:33:21,742 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 208 predicate places. [2025-03-17 19:33:21,742 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 385 transitions, 6111 flow [2025-03-17 19:33:21,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:21,742 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:21,742 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:21,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-17 19:33:21,742 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:21,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:21,743 INFO L85 PathProgramCache]: Analyzing trace with hash 917367275, now seen corresponding path program 2 times [2025-03-17 19:33:21,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:21,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242893301] [2025-03-17 19:33:21,743 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:33:21,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:21,751 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:33:21,755 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:33:21,755 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:33:21,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:22,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:22,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:22,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242893301] [2025-03-17 19:33:22,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242893301] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:22,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:22,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 19:33:22,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525775120] [2025-03-17 19:33:22,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:22,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 19:33:22,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:22,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 19:33:22,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-17 19:33:22,035 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:22,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 385 transitions, 6111 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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) [2025-03-17 19:33:22,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:22,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:22,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:25,252 INFO L124 PetriNetUnfolderBase]: 8883/18377 cut-off events. [2025-03-17 19:33:25,252 INFO L125 PetriNetUnfolderBase]: For 200424/200432 co-relation queries the response was YES. [2025-03-17 19:33:25,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103674 conditions, 18377 events. 8883/18377 cut-off events. For 200424/200432 co-relation queries the response was YES. Maximal size of possible extension queue 1000. Compared 173885 event pairs, 5982 based on Foata normal form. 44/17677 useless extension candidates. Maximal degree in co-relation 96692. Up to 8610 conditions per place. [2025-03-17 19:33:25,501 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 411 selfloop transitions, 170 changer transitions 23/606 dead transitions. [2025-03-17 19:33:25,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 606 transitions, 10524 flow [2025-03-17 19:33:25,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-17 19:33:25,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-03-17 19:33:25,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 296 transitions. [2025-03-17 19:33:25,502 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.33636363636363636 [2025-03-17 19:33:25,502 INFO L175 Difference]: Start difference. First operand has 253 places, 385 transitions, 6111 flow. Second operand 20 states and 296 transitions. [2025-03-17 19:33:25,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 606 transitions, 10524 flow [2025-03-17 19:33:26,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 606 transitions, 10207 flow, removed 65 selfloop flow, removed 5 redundant places. [2025-03-17 19:33:26,449 INFO L231 Difference]: Finished difference. Result has 275 places, 419 transitions, 6906 flow [2025-03-17 19:33:26,449 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=5936, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6906, PETRI_PLACES=275, PETRI_TRANSITIONS=419} [2025-03-17 19:33:26,449 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 230 predicate places. [2025-03-17 19:33:26,449 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 419 transitions, 6906 flow [2025-03-17 19:33:26,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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) [2025-03-17 19:33:26,450 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:26,450 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:26,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-17 19:33:26,450 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:26,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:26,450 INFO L85 PathProgramCache]: Analyzing trace with hash 810707277, now seen corresponding path program 3 times [2025-03-17 19:33:26,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:26,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424092519] [2025-03-17 19:33:26,450 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 19:33:26,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:26,462 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:33:26,468 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:33:26,468 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 19:33:26,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:26,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:26,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424092519] [2025-03-17 19:33:26,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424092519] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:26,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:26,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-17 19:33:26,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623361725] [2025-03-17 19:33:26,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:26,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 19:33:26,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:26,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 19:33:26,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-17 19:33:26,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:26,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 419 transitions, 6906 flow. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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) [2025-03-17 19:33:26,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:26,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:26,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:30,076 INFO L124 PetriNetUnfolderBase]: 7718/15984 cut-off events. [2025-03-17 19:33:30,077 INFO L125 PetriNetUnfolderBase]: For 193694/193702 co-relation queries the response was YES. [2025-03-17 19:33:30,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96407 conditions, 15984 events. 7718/15984 cut-off events. For 193694/193702 co-relation queries the response was YES. Maximal size of possible extension queue 853. Compared 148472 event pairs, 4987 based on Foata normal form. 28/15288 useless extension candidates. Maximal degree in co-relation 90794. Up to 9143 conditions per place. [2025-03-17 19:33:30,237 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 368 selfloop transitions, 158 changer transitions 13/541 dead transitions. [2025-03-17 19:33:30,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 541 transitions, 9789 flow [2025-03-17 19:33:30,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 19:33:30,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-17 19:33:30,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 207 transitions. [2025-03-17 19:33:30,238 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.336038961038961 [2025-03-17 19:33:30,238 INFO L175 Difference]: Start difference. First operand has 275 places, 419 transitions, 6906 flow. Second operand 14 states and 207 transitions. [2025-03-17 19:33:30,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 541 transitions, 9789 flow [2025-03-17 19:33:31,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 541 transitions, 9409 flow, removed 149 selfloop flow, removed 5 redundant places. [2025-03-17 19:33:31,311 INFO L231 Difference]: Finished difference. Result has 285 places, 420 transitions, 6954 flow [2025-03-17 19:33:31,311 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=6536, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6954, PETRI_PLACES=285, PETRI_TRANSITIONS=420} [2025-03-17 19:33:31,312 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 240 predicate places. [2025-03-17 19:33:31,312 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 420 transitions, 6954 flow [2025-03-17 19:33:31,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 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) [2025-03-17 19:33:31,312 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:31,312 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:31,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-17 19:33:31,313 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:31,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash 2052116493, now seen corresponding path program 2 times [2025-03-17 19:33:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:31,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957417954] [2025-03-17 19:33:31,313 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:33:31,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:31,323 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:33:31,326 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:33:31,327 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:33:31,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:31,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:31,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:31,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957417954] [2025-03-17 19:33:31,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957417954] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:31,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:31,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 19:33:31,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924638737] [2025-03-17 19:33:31,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:31,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:33:31,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:31,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:33:31,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:33:31,535 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:31,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 420 transitions, 6954 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:31,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:31,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:31,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:35,696 INFO L124 PetriNetUnfolderBase]: 9122/19100 cut-off events. [2025-03-17 19:33:35,697 INFO L125 PetriNetUnfolderBase]: For 225986/225986 co-relation queries the response was YES. [2025-03-17 19:33:35,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113556 conditions, 19100 events. 9122/19100 cut-off events. For 225986/225986 co-relation queries the response was YES. Maximal size of possible extension queue 1060. Compared 187770 event pairs, 3323 based on Foata normal form. 152/18420 useless extension candidates. Maximal degree in co-relation 105836. Up to 8140 conditions per place. [2025-03-17 19:33:35,872 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 542 selfloop transitions, 119 changer transitions 26/689 dead transitions. [2025-03-17 19:33:35,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 689 transitions, 11820 flow [2025-03-17 19:33:35,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:33:35,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:33:35,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 209 transitions. [2025-03-17 19:33:35,873 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.475 [2025-03-17 19:33:35,873 INFO L175 Difference]: Start difference. First operand has 285 places, 420 transitions, 6954 flow. Second operand 10 states and 209 transitions. [2025-03-17 19:33:35,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 689 transitions, 11820 flow [2025-03-17 19:33:36,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 689 transitions, 11353 flow, removed 77 selfloop flow, removed 11 redundant places. [2025-03-17 19:33:36,951 INFO L231 Difference]: Finished difference. Result has 288 places, 454 transitions, 7636 flow [2025-03-17 19:33:36,951 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=6695, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7636, PETRI_PLACES=288, PETRI_TRANSITIONS=454} [2025-03-17 19:33:36,951 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 243 predicate places. [2025-03-17 19:33:36,951 INFO L471 AbstractCegarLoop]: Abstraction has has 288 places, 454 transitions, 7636 flow [2025-03-17 19:33:36,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:36,951 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:36,951 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:36,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-17 19:33:36,952 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:36,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:36,952 INFO L85 PathProgramCache]: Analyzing trace with hash 514872717, now seen corresponding path program 3 times [2025-03-17 19:33:36,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:36,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558826097] [2025-03-17 19:33:36,952 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 19:33:36,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:36,960 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:33:36,963 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:33:36,963 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-17 19:33:36,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:37,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:37,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:37,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558826097] [2025-03-17 19:33:37,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558826097] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:37,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:37,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 19:33:37,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937845046] [2025-03-17 19:33:37,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:37,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 19:33:37,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:37,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 19:33:37,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:33:37,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:37,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 454 transitions, 7636 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:37,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:37,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:37,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:41,484 INFO L124 PetriNetUnfolderBase]: 9803/20727 cut-off events. [2025-03-17 19:33:41,484 INFO L125 PetriNetUnfolderBase]: For 280809/280817 co-relation queries the response was YES. [2025-03-17 19:33:41,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126679 conditions, 20727 events. 9803/20727 cut-off events. For 280809/280817 co-relation queries the response was YES. Maximal size of possible extension queue 1176. Compared 208214 event pairs, 2456 based on Foata normal form. 114/20025 useless extension candidates. Maximal degree in co-relation 119513. Up to 10202 conditions per place. [2025-03-17 19:33:41,726 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 430 selfloop transitions, 200 changer transitions 52/684 dead transitions. [2025-03-17 19:33:41,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 684 transitions, 11833 flow [2025-03-17 19:33:41,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 19:33:41,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-17 19:33:41,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 237 transitions. [2025-03-17 19:33:41,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4143356643356643 [2025-03-17 19:33:41,727 INFO L175 Difference]: Start difference. First operand has 288 places, 454 transitions, 7636 flow. Second operand 13 states and 237 transitions. [2025-03-17 19:33:41,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 684 transitions, 11833 flow [2025-03-17 19:33:43,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 684 transitions, 11446 flow, removed 167 selfloop flow, removed 3 redundant places. [2025-03-17 19:33:43,955 INFO L231 Difference]: Finished difference. Result has 303 places, 494 transitions, 8708 flow [2025-03-17 19:33:43,955 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=7413, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8708, PETRI_PLACES=303, PETRI_TRANSITIONS=494} [2025-03-17 19:33:43,955 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 258 predicate places. [2025-03-17 19:33:43,955 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 494 transitions, 8708 flow [2025-03-17 19:33:43,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:33:43,955 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:43,955 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:43,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-17 19:33:43,956 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:43,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:43,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1253353310, now seen corresponding path program 1 times [2025-03-17 19:33:43,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:43,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030808121] [2025-03-17 19:33:43,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:33:43,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:43,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 19:33:43,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 19:33:43,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:33:43,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:44,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:44,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:44,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030808121] [2025-03-17 19:33:44,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030808121] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:44,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:44,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 19:33:44,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981589763] [2025-03-17 19:33:44,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:44,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 19:33:44,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:44,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 19:33:44,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-03-17 19:33:44,268 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:44,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 494 transitions, 8708 flow. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 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) [2025-03-17 19:33:44,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:44,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:44,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:48,690 INFO L124 PetriNetUnfolderBase]: 8513/18382 cut-off events. [2025-03-17 19:33:48,691 INFO L125 PetriNetUnfolderBase]: For 287595/287603 co-relation queries the response was YES. [2025-03-17 19:33:48,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120097 conditions, 18382 events. 8513/18382 cut-off events. For 287595/287603 co-relation queries the response was YES. Maximal size of possible extension queue 976. Compared 181848 event pairs, 5704 based on Foata normal form. 8/17574 useless extension candidates. Maximal degree in co-relation 114233. Up to 15853 conditions per place. [2025-03-17 19:33:48,930 INFO L140 encePairwiseOnDemand]: 30/44 looper letters, 537 selfloop transitions, 98 changer transitions 15/652 dead transitions. [2025-03-17 19:33:48,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 652 transitions, 12572 flow [2025-03-17 19:33:48,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 19:33:48,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-17 19:33:48,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 225 transitions. [2025-03-17 19:33:48,931 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3409090909090909 [2025-03-17 19:33:48,931 INFO L175 Difference]: Start difference. First operand has 303 places, 494 transitions, 8708 flow. Second operand 15 states and 225 transitions. [2025-03-17 19:33:48,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 652 transitions, 12572 flow [2025-03-17 19:33:50,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 652 transitions, 12190 flow, removed 100 selfloop flow, removed 5 redundant places. [2025-03-17 19:33:50,949 INFO L231 Difference]: Finished difference. Result has 322 places, 544 transitions, 9859 flow [2025-03-17 19:33:50,949 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=8402, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9859, PETRI_PLACES=322, PETRI_TRANSITIONS=544} [2025-03-17 19:33:50,950 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 277 predicate places. [2025-03-17 19:33:50,950 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 544 transitions, 9859 flow [2025-03-17 19:33:50,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 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) [2025-03-17 19:33:50,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:50,950 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:50,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-17 19:33:50,950 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:50,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:50,951 INFO L85 PathProgramCache]: Analyzing trace with hash 582547070, now seen corresponding path program 2 times [2025-03-17 19:33:50,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:50,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120853692] [2025-03-17 19:33:50,951 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:33:50,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:50,965 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 1 equivalence classes. [2025-03-17 19:33:50,969 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 19:33:50,970 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:33:50,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:51,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:51,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:51,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120853692] [2025-03-17 19:33:51,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120853692] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:51,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:51,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 19:33:51,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622321843] [2025-03-17 19:33:51,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:51,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 19:33:51,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:51,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 19:33:51,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-03-17 19:33:51,261 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:51,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 544 transitions, 9859 flow. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 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) [2025-03-17 19:33:51,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:51,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:51,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:33:56,000 INFO L124 PetriNetUnfolderBase]: 9259/19975 cut-off events. [2025-03-17 19:33:56,001 INFO L125 PetriNetUnfolderBase]: For 348697/348705 co-relation queries the response was YES. [2025-03-17 19:33:56,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129600 conditions, 19975 events. 9259/19975 cut-off events. For 348697/348705 co-relation queries the response was YES. Maximal size of possible extension queue 1047. Compared 199958 event pairs, 6054 based on Foata normal form. 54/19667 useless extension candidates. Maximal degree in co-relation 125952. Up to 15767 conditions per place. [2025-03-17 19:33:56,425 INFO L140 encePairwiseOnDemand]: 31/44 looper letters, 632 selfloop transitions, 114 changer transitions 32/780 dead transitions. [2025-03-17 19:33:56,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 780 transitions, 15032 flow [2025-03-17 19:33:56,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-17 19:33:56,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-03-17 19:33:56,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 291 transitions. [2025-03-17 19:33:56,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36742424242424243 [2025-03-17 19:33:56,426 INFO L175 Difference]: Start difference. First operand has 322 places, 544 transitions, 9859 flow. Second operand 18 states and 291 transitions. [2025-03-17 19:33:56,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 780 transitions, 15032 flow [2025-03-17 19:33:58,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 780 transitions, 14901 flow, removed 60 selfloop flow, removed 2 redundant places. [2025-03-17 19:33:58,962 INFO L231 Difference]: Finished difference. Result has 345 places, 582 transitions, 11045 flow [2025-03-17 19:33:58,962 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=9776, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=11045, PETRI_PLACES=345, PETRI_TRANSITIONS=582} [2025-03-17 19:33:58,963 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 300 predicate places. [2025-03-17 19:33:58,963 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 582 transitions, 11045 flow [2025-03-17 19:33:58,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 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) [2025-03-17 19:33:58,963 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:33:58,963 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:33:58,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-17 19:33:58,963 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-17 19:33:58,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:33:58,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1304635781, now seen corresponding path program 1 times [2025-03-17 19:33:58,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:33:58,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141282832] [2025-03-17 19:33:58,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:33:58,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:33:58,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 19:33:58,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 19:33:58,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:33:58,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:33:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:33:59,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:33:59,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141282832] [2025-03-17 19:33:59,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141282832] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:33:59,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:33:59,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-17 19:33:59,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203941052] [2025-03-17 19:33:59,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:33:59,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 19:33:59,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:33:59,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 19:33:59,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-03-17 19:33:59,462 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 44 [2025-03-17 19:33:59,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 582 transitions, 11045 flow. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 11 states have internal predecessors, (83), 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) [2025-03-17 19:33:59,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:33:59,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 44 [2025-03-17 19:33:59,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand