./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:39:15,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:39:15,670 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:39:15,674 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:39:15,674 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:39:15,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:39:15,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:39:15,690 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:39:15,690 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:39:15,690 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:39:15,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:39:15,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:39:15,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:39:15,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:39:15,691 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:39:15,691 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:39:15,691 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:39:15,691 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:39:15,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:39:15,691 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:39:15,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:39:15,692 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:39:15,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:39:15,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:39:15,693 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:39:15,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:39:15,693 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:39:15,693 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:39:15,693 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:39:15,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:39:15,693 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b03aab73b78beaf1bb7c49b9c847245bb2e0f74d5ca4021b62d8afb0b1e5702 [2025-02-06 18:39:15,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:39:15,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:39:15,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:39:15,906 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:39:15,906 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:39:15,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2025-02-06 18:39:17,146 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c32a184cb/014badd07ff34308a5d1f00aa59b987a/FLAG40497e070 [2025-02-06 18:39:17,466 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:39:17,467 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2025-02-06 18:39:17,487 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c32a184cb/014badd07ff34308a5d1f00aa59b987a/FLAG40497e070 [2025-02-06 18:39:17,506 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c32a184cb/014badd07ff34308a5d1f00aa59b987a [2025-02-06 18:39:17,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:39:17,508 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:39:17,509 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:39:17,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:39:17,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:39:17,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:17,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158ae3c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17, skipping insertion in model container [2025-02-06 18:39:17,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:17,579 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:39:17,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:39:17,899 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:39:17,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:39:17,972 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:39:17,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17 WrapperNode [2025-02-06 18:39:17,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:39:17,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:39:17,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:39:17,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:39:17,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:17,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:18,013 INFO L138 Inliner]: procedures = 246, calls = 44, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 145 [2025-02-06 18:39:18,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:39:18,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:39:18,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:39:18,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:39:18,019 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:18,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:18,022 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:18,033 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 2, 13]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 2, 6]. [2025-02-06 18:39:18,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:18,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:18,041 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:18,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:18,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:18,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:18,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:39:18,048 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:39:18,048 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:39:18,048 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:39:18,049 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17" (1/1) ... [2025-02-06 18:39:18,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:39:18,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:39:18,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 18:39:18,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 18:39:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-02-06 18:39:18,109 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-02-06 18:39:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 18:39:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 18:39:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 18:39:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 18:39:18,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:39:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:39:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 18:39:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:39:18,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:39:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 18:39:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:39:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 18:39:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 18:39:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 18:39:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:39:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:39:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 18:39:18,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:39:18,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:39:18,112 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:39:18,311 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:39:18,313 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:39:18,499 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:39:18,499 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:39:18,640 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:39:18,640 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:39:18,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:39:18 BoogieIcfgContainer [2025-02-06 18:39:18,641 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:39:18,643 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:39:18,643 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:39:18,646 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:39:18,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:39:17" (1/3) ... [2025-02-06 18:39:18,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f19fe81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:39:18, skipping insertion in model container [2025-02-06 18:39:18,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:17" (2/3) ... [2025-02-06 18:39:18,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f19fe81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:39:18, skipping insertion in model container [2025-02-06 18:39:18,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:39:18" (3/3) ... [2025-02-06 18:39:18,648 INFO L128 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2025-02-06 18:39:18,662 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:39:18,663 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-3_2-container_of-global.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 18:39:18,664 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:39:18,709 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 18:39:18,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 82 flow [2025-02-06 18:39:18,759 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-02-06 18:39:18,761 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 18:39:18,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 37 events. 2/37 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 76 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 21. Up to 3 conditions per place. [2025-02-06 18:39:18,763 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 82 flow [2025-02-06 18:39:18,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 65 flow [2025-02-06 18:39:18,770 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:39:18,778 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;@49a062ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:39:18,778 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-06 18:39:18,783 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:39:18,783 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-02-06 18:39:18,783 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:39:18,783 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:18,784 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:18,784 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:18,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:18,788 INFO L85 PathProgramCache]: Analyzing trace with hash 57593330, now seen corresponding path program 1 times [2025-02-06 18:39:18,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:18,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615612085] [2025-02-06 18:39:18,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:18,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:18,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:39:18,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:39:18,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:18,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:19,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:19,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:19,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615612085] [2025-02-06 18:39:19,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615612085] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:19,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:19,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:39:19,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519172606] [2025-02-06 18:39:19,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:19,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:39:19,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:19,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:39:19,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:39:19,446 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:19,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 65 flow. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:19,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:19,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:19,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:19,911 INFO L124 PetriNetUnfolderBase]: 769/1310 cut-off events. [2025-02-06 18:39:19,912 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-02-06 18:39:19,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2642 conditions, 1310 events. 769/1310 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 6514 event pairs, 367 based on Foata normal form. 0/1090 useless extension candidates. Maximal degree in co-relation 2572. Up to 850 conditions per place. [2025-02-06 18:39:19,924 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 63 selfloop transitions, 20 changer transitions 2/86 dead transitions. [2025-02-06 18:39:19,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 86 transitions, 366 flow [2025-02-06 18:39:19,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:39:19,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:39:19,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 129 transitions. [2025-02-06 18:39:19,939 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37941176470588234 [2025-02-06 18:39:19,940 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 65 flow. Second operand 10 states and 129 transitions. [2025-02-06 18:39:19,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 86 transitions, 366 flow [2025-02-06 18:39:19,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 86 transitions, 355 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:39:19,950 INFO L231 Difference]: Finished difference. Result has 46 places, 48 transitions, 188 flow [2025-02-06 18:39:19,952 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=188, PETRI_PLACES=46, PETRI_TRANSITIONS=48} [2025-02-06 18:39:19,955 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2025-02-06 18:39:19,955 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 48 transitions, 188 flow [2025-02-06 18:39:19,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:19,956 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:19,956 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:19,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:39:19,956 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:19,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:19,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1397316198, now seen corresponding path program 1 times [2025-02-06 18:39:19,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:19,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314206407] [2025-02-06 18:39:19,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:19,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:19,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:39:19,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:39:19,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:19,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:20,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:20,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314206407] [2025-02-06 18:39:20,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314206407] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:20,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:20,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:39:20,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126014367] [2025-02-06 18:39:20,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:20,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:39:20,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:20,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:39:20,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:39:20,256 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:20,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 48 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:20,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:20,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:20,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:20,597 INFO L124 PetriNetUnfolderBase]: 899/1554 cut-off events. [2025-02-06 18:39:20,598 INFO L125 PetriNetUnfolderBase]: For 782/782 co-relation queries the response was YES. [2025-02-06 18:39:20,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3993 conditions, 1554 events. 899/1554 cut-off events. For 782/782 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 8195 event pairs, 569 based on Foata normal form. 0/1372 useless extension candidates. Maximal degree in co-relation 3585. Up to 1126 conditions per place. [2025-02-06 18:39:20,609 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 63 selfloop transitions, 26 changer transitions 4/94 dead transitions. [2025-02-06 18:39:20,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 94 transitions, 534 flow [2025-02-06 18:39:20,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:39:20,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:39:20,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 123 transitions. [2025-02-06 18:39:20,615 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36176470588235293 [2025-02-06 18:39:20,615 INFO L175 Difference]: Start difference. First operand has 46 places, 48 transitions, 188 flow. Second operand 10 states and 123 transitions. [2025-02-06 18:39:20,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 94 transitions, 534 flow [2025-02-06 18:39:20,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 94 transitions, 532 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:39:20,623 INFO L231 Difference]: Finished difference. Result has 57 places, 62 transitions, 327 flow [2025-02-06 18:39:20,623 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=327, PETRI_PLACES=57, PETRI_TRANSITIONS=62} [2025-02-06 18:39:20,623 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 22 predicate places. [2025-02-06 18:39:20,624 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 62 transitions, 327 flow [2025-02-06 18:39:20,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:20,625 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:20,625 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:20,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:39:20,625 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:20,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:20,628 INFO L85 PathProgramCache]: Analyzing trace with hash -865310677, now seen corresponding path program 1 times [2025-02-06 18:39:20,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:20,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826086733] [2025-02-06 18:39:20,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:20,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:20,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:39:20,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:39:20,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:20,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:20,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:20,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:20,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826086733] [2025-02-06 18:39:20,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826086733] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:20,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:20,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:20,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637635220] [2025-02-06 18:39:20,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:20,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:20,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:20,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:20,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:20,969 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:20,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 62 transitions, 327 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:20,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:20,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:20,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:21,624 INFO L124 PetriNetUnfolderBase]: 1232/2123 cut-off events. [2025-02-06 18:39:21,624 INFO L125 PetriNetUnfolderBase]: For 2138/2143 co-relation queries the response was YES. [2025-02-06 18:39:21,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6425 conditions, 2123 events. 1232/2123 cut-off events. For 2138/2143 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 12005 event pairs, 437 based on Foata normal form. 59/2034 useless extension candidates. Maximal degree in co-relation 6327. Up to 1111 conditions per place. [2025-02-06 18:39:21,645 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 86 selfloop transitions, 50 changer transitions 3/140 dead transitions. [2025-02-06 18:39:21,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 140 transitions, 949 flow [2025-02-06 18:39:21,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 18:39:21,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-06 18:39:21,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 177 transitions. [2025-02-06 18:39:21,647 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37184873949579833 [2025-02-06 18:39:21,647 INFO L175 Difference]: Start difference. First operand has 57 places, 62 transitions, 327 flow. Second operand 14 states and 177 transitions. [2025-02-06 18:39:21,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 140 transitions, 949 flow [2025-02-06 18:39:21,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 140 transitions, 947 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:39:21,653 INFO L231 Difference]: Finished difference. Result has 77 places, 89 transitions, 697 flow [2025-02-06 18:39:21,654 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=697, PETRI_PLACES=77, PETRI_TRANSITIONS=89} [2025-02-06 18:39:21,654 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 42 predicate places. [2025-02-06 18:39:21,654 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 89 transitions, 697 flow [2025-02-06 18:39:21,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:21,654 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:21,655 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:21,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:39:21,655 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:21,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:21,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1710718043, now seen corresponding path program 1 times [2025-02-06 18:39:21,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:21,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041959001] [2025-02-06 18:39:21,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:21,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:21,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:39:21,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:39:21,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:21,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:21,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:21,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:21,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041959001] [2025-02-06 18:39:21,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041959001] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:21,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:21,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:21,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233041100] [2025-02-06 18:39:21,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:21,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:21,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:21,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:21,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:21,987 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:21,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 89 transitions, 697 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:21,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:21,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:21,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:22,590 INFO L124 PetriNetUnfolderBase]: 1448/2538 cut-off events. [2025-02-06 18:39:22,591 INFO L125 PetriNetUnfolderBase]: For 5262/5278 co-relation queries the response was YES. [2025-02-06 18:39:22,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9201 conditions, 2538 events. 1448/2538 cut-off events. For 5262/5278 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 15303 event pairs, 585 based on Foata normal form. 72/2448 useless extension candidates. Maximal degree in co-relation 9079. Up to 1461 conditions per place. [2025-02-06 18:39:22,605 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 84 selfloop transitions, 65 changer transitions 12/162 dead transitions. [2025-02-06 18:39:22,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 162 transitions, 1422 flow [2025-02-06 18:39:22,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:39:22,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:39:22,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 190 transitions. [2025-02-06 18:39:22,607 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.328719723183391 [2025-02-06 18:39:22,607 INFO L175 Difference]: Start difference. First operand has 77 places, 89 transitions, 697 flow. Second operand 17 states and 190 transitions. [2025-02-06 18:39:22,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 162 transitions, 1422 flow [2025-02-06 18:39:22,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 162 transitions, 1369 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-02-06 18:39:22,628 INFO L231 Difference]: Finished difference. Result has 92 places, 103 transitions, 967 flow [2025-02-06 18:39:22,628 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=967, PETRI_PLACES=92, PETRI_TRANSITIONS=103} [2025-02-06 18:39:22,628 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 57 predicate places. [2025-02-06 18:39:22,628 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 103 transitions, 967 flow [2025-02-06 18:39:22,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:22,629 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:22,629 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:22,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:39:22,629 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:22,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:22,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1703366393, now seen corresponding path program 2 times [2025-02-06 18:39:22,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:22,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267850200] [2025-02-06 18:39:22,630 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:39:22,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:22,644 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:39:22,650 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:39:22,650 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:22,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:22,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:22,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:22,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267850200] [2025-02-06 18:39:22,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267850200] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:22,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:22,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:22,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206194921] [2025-02-06 18:39:22,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:22,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:22,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:22,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:22,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:22,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:22,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 103 transitions, 967 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:22,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:22,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:22,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:23,570 INFO L124 PetriNetUnfolderBase]: 1492/2649 cut-off events. [2025-02-06 18:39:23,571 INFO L125 PetriNetUnfolderBase]: For 6958/6972 co-relation queries the response was YES. [2025-02-06 18:39:23,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10192 conditions, 2649 events. 1492/2649 cut-off events. For 6958/6972 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 16339 event pairs, 660 based on Foata normal form. 70/2555 useless extension candidates. Maximal degree in co-relation 10060. Up to 1324 conditions per place. [2025-02-06 18:39:23,589 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 82 selfloop transitions, 70 changer transitions 9/162 dead transitions. [2025-02-06 18:39:23,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 162 transitions, 1568 flow [2025-02-06 18:39:23,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:39:23,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:39:23,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 205 transitions. [2025-02-06 18:39:23,594 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3349673202614379 [2025-02-06 18:39:23,594 INFO L175 Difference]: Start difference. First operand has 92 places, 103 transitions, 967 flow. Second operand 18 states and 205 transitions. [2025-02-06 18:39:23,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 162 transitions, 1568 flow [2025-02-06 18:39:23,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 162 transitions, 1409 flow, removed 17 selfloop flow, removed 13 redundant places. [2025-02-06 18:39:23,617 INFO L231 Difference]: Finished difference. Result has 99 places, 106 transitions, 1027 flow [2025-02-06 18:39:23,618 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1027, PETRI_PLACES=99, PETRI_TRANSITIONS=106} [2025-02-06 18:39:23,618 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 64 predicate places. [2025-02-06 18:39:23,618 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 106 transitions, 1027 flow [2025-02-06 18:39:23,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:23,619 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:23,619 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:23,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:39:23,619 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:23,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:23,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1504064827, now seen corresponding path program 2 times [2025-02-06 18:39:23,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:23,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245696345] [2025-02-06 18:39:23,619 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:39:23,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:23,656 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:39:23,661 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:39:23,662 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:23,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:24,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:24,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:24,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245696345] [2025-02-06 18:39:24,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245696345] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:24,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:24,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:24,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6075174] [2025-02-06 18:39:24,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:24,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:24,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:24,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:24,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:24,022 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:24,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 106 transitions, 1027 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:24,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:24,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:24,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:24,757 INFO L124 PetriNetUnfolderBase]: 1613/2833 cut-off events. [2025-02-06 18:39:24,758 INFO L125 PetriNetUnfolderBase]: For 8425/8433 co-relation queries the response was YES. [2025-02-06 18:39:24,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11460 conditions, 2833 events. 1613/2833 cut-off events. For 8425/8433 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 17606 event pairs, 614 based on Foata normal form. 58/2703 useless extension candidates. Maximal degree in co-relation 11326. Up to 1777 conditions per place. [2025-02-06 18:39:24,787 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 101 selfloop transitions, 68 changer transitions 5/175 dead transitions. [2025-02-06 18:39:24,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 175 transitions, 1790 flow [2025-02-06 18:39:24,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:39:24,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:39:24,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 196 transitions. [2025-02-06 18:39:24,790 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3391003460207612 [2025-02-06 18:39:24,790 INFO L175 Difference]: Start difference. First operand has 99 places, 106 transitions, 1027 flow. Second operand 17 states and 196 transitions. [2025-02-06 18:39:24,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 175 transitions, 1790 flow [2025-02-06 18:39:24,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 175 transitions, 1609 flow, removed 22 selfloop flow, removed 15 redundant places. [2025-02-06 18:39:24,812 INFO L231 Difference]: Finished difference. Result has 104 places, 117 transitions, 1160 flow [2025-02-06 18:39:24,813 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1160, PETRI_PLACES=104, PETRI_TRANSITIONS=117} [2025-02-06 18:39:24,814 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 69 predicate places. [2025-02-06 18:39:24,814 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 117 transitions, 1160 flow [2025-02-06 18:39:24,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:24,814 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:24,815 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:24,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:39:24,815 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:24,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:24,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1504064603, now seen corresponding path program 3 times [2025-02-06 18:39:24,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:24,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22099237] [2025-02-06 18:39:24,815 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:24,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:24,830 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:39:24,842 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:39:24,842 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:39:24,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:25,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:25,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:25,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22099237] [2025-02-06 18:39:25,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22099237] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:25,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:25,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:25,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982990569] [2025-02-06 18:39:25,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:25,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:25,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:25,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:25,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:25,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:25,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 117 transitions, 1160 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:25,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:25,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:25,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:26,028 INFO L124 PetriNetUnfolderBase]: 1698/3027 cut-off events. [2025-02-06 18:39:26,029 INFO L125 PetriNetUnfolderBase]: For 13207/13232 co-relation queries the response was YES. [2025-02-06 18:39:26,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13436 conditions, 3027 events. 1698/3027 cut-off events. For 13207/13232 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 19320 event pairs, 997 based on Foata normal form. 55/2888 useless extension candidates. Maximal degree in co-relation 11506. Up to 2091 conditions per place. [2025-02-06 18:39:26,046 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 100 selfloop transitions, 52 changer transitions 8/161 dead transitions. [2025-02-06 18:39:26,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 161 transitions, 1746 flow [2025-02-06 18:39:26,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 18:39:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-06 18:39:26,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 147 transitions. [2025-02-06 18:39:26,048 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3602941176470588 [2025-02-06 18:39:26,049 INFO L175 Difference]: Start difference. First operand has 104 places, 117 transitions, 1160 flow. Second operand 12 states and 147 transitions. [2025-02-06 18:39:26,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 161 transitions, 1746 flow [2025-02-06 18:39:26,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 161 transitions, 1562 flow, removed 38 selfloop flow, removed 13 redundant places. [2025-02-06 18:39:26,075 INFO L231 Difference]: Finished difference. Result has 105 places, 121 transitions, 1173 flow [2025-02-06 18:39:26,075 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1003, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1173, PETRI_PLACES=105, PETRI_TRANSITIONS=121} [2025-02-06 18:39:26,076 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 70 predicate places. [2025-02-06 18:39:26,077 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 121 transitions, 1173 flow [2025-02-06 18:39:26,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:26,077 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:26,077 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:26,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 18:39:26,077 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:26,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:26,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1509629017, now seen corresponding path program 3 times [2025-02-06 18:39:26,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:26,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402253162] [2025-02-06 18:39:26,078 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:26,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:26,093 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:39:26,102 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:39:26,102 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:39:26,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:26,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:26,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:26,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402253162] [2025-02-06 18:39:26,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402253162] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:26,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:26,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:26,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105126633] [2025-02-06 18:39:26,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:26,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:26,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:26,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:26,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:26,312 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:26,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 121 transitions, 1173 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:26,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:26,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:26,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:26,914 INFO L124 PetriNetUnfolderBase]: 1625/2924 cut-off events. [2025-02-06 18:39:26,914 INFO L125 PetriNetUnfolderBase]: For 11996/11998 co-relation queries the response was YES. [2025-02-06 18:39:26,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12787 conditions, 2924 events. 1625/2924 cut-off events. For 11996/11998 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 18809 event pairs, 680 based on Foata normal form. 56/2808 useless extension candidates. Maximal degree in co-relation 12656. Up to 1606 conditions per place. [2025-02-06 18:39:26,929 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 110 selfloop transitions, 76 changer transitions 6/193 dead transitions. [2025-02-06 18:39:26,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 193 transitions, 2052 flow [2025-02-06 18:39:26,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:39:26,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:39:26,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 199 transitions. [2025-02-06 18:39:26,931 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34429065743944637 [2025-02-06 18:39:26,931 INFO L175 Difference]: Start difference. First operand has 105 places, 121 transitions, 1173 flow. Second operand 17 states and 199 transitions. [2025-02-06 18:39:26,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 193 transitions, 2052 flow [2025-02-06 18:39:26,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 193 transitions, 1920 flow, removed 10 selfloop flow, removed 9 redundant places. [2025-02-06 18:39:26,952 INFO L231 Difference]: Finished difference. Result has 115 places, 134 transitions, 1416 flow [2025-02-06 18:39:26,954 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1054, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1416, PETRI_PLACES=115, PETRI_TRANSITIONS=134} [2025-02-06 18:39:26,954 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 80 predicate places. [2025-02-06 18:39:26,954 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 134 transitions, 1416 flow [2025-02-06 18:39:26,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:26,954 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:26,954 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:26,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 18:39:26,955 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:26,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:26,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1509426983, now seen corresponding path program 4 times [2025-02-06 18:39:26,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:26,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193218143] [2025-02-06 18:39:26,955 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:39:26,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:26,968 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 12 statements into 2 equivalence classes. [2025-02-06 18:39:26,980 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:39:26,980 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:39:26,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:27,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:27,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:27,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193218143] [2025-02-06 18:39:27,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193218143] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:27,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:27,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:27,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021622446] [2025-02-06 18:39:27,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:27,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:27,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:27,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:27,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:27,216 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:27,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 134 transitions, 1416 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:27,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:27,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:27,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:27,815 INFO L124 PetriNetUnfolderBase]: 1659/3049 cut-off events. [2025-02-06 18:39:27,816 INFO L125 PetriNetUnfolderBase]: For 18091/18091 co-relation queries the response was YES. [2025-02-06 18:39:27,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14447 conditions, 3049 events. 1659/3049 cut-off events. For 18091/18091 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 20179 event pairs, 977 based on Foata normal form. 56/2939 useless extension candidates. Maximal degree in co-relation 12206. Up to 1808 conditions per place. [2025-02-06 18:39:27,831 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 108 selfloop transitions, 66 changer transitions 11/186 dead transitions. [2025-02-06 18:39:27,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 186 transitions, 2122 flow [2025-02-06 18:39:27,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 18:39:27,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-06 18:39:27,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 169 transitions. [2025-02-06 18:39:27,835 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3550420168067227 [2025-02-06 18:39:27,835 INFO L175 Difference]: Start difference. First operand has 115 places, 134 transitions, 1416 flow. Second operand 14 states and 169 transitions. [2025-02-06 18:39:27,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 186 transitions, 2122 flow [2025-02-06 18:39:27,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 186 transitions, 1969 flow, removed 25 selfloop flow, removed 12 redundant places. [2025-02-06 18:39:27,869 INFO L231 Difference]: Finished difference. Result has 119 places, 137 transitions, 1498 flow [2025-02-06 18:39:27,869 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1498, PETRI_PLACES=119, PETRI_TRANSITIONS=137} [2025-02-06 18:39:27,871 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 84 predicate places. [2025-02-06 18:39:27,871 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 137 transitions, 1498 flow [2025-02-06 18:39:27,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:27,871 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:27,871 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:27,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 18:39:27,872 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:27,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:27,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1938155726, now seen corresponding path program 1 times [2025-02-06 18:39:27,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:27,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125326408] [2025-02-06 18:39:27,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:27,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:27,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:27,895 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:27,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:27,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:28,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:28,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:28,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125326408] [2025-02-06 18:39:28,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125326408] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:28,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:28,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:39:28,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728715342] [2025-02-06 18:39:28,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:28,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:39:28,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:28,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:39:28,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:39:28,155 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:28,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 137 transitions, 1498 flow. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:28,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:28,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:28,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:28,933 INFO L124 PetriNetUnfolderBase]: 1851/3408 cut-off events. [2025-02-06 18:39:28,933 INFO L125 PetriNetUnfolderBase]: For 20367/20371 co-relation queries the response was YES. [2025-02-06 18:39:28,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16755 conditions, 3408 events. 1851/3408 cut-off events. For 20367/20371 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 23110 event pairs, 434 based on Foata normal form. 4/3204 useless extension candidates. Maximal degree in co-relation 16616. Up to 1350 conditions per place. [2025-02-06 18:39:28,951 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 173 selfloop transitions, 84 changer transitions 26/284 dead transitions. [2025-02-06 18:39:28,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 284 transitions, 3094 flow [2025-02-06 18:39:28,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:39:28,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:39:28,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 248 transitions. [2025-02-06 18:39:28,955 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40522875816993464 [2025-02-06 18:39:28,955 INFO L175 Difference]: Start difference. First operand has 119 places, 137 transitions, 1498 flow. Second operand 18 states and 248 transitions. [2025-02-06 18:39:28,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 284 transitions, 3094 flow [2025-02-06 18:39:29,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 284 transitions, 2930 flow, removed 56 selfloop flow, removed 6 redundant places. [2025-02-06 18:39:29,003 INFO L231 Difference]: Finished difference. Result has 140 places, 163 transitions, 2024 flow [2025-02-06 18:39:29,003 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1418, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2024, PETRI_PLACES=140, PETRI_TRANSITIONS=163} [2025-02-06 18:39:29,004 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 105 predicate places. [2025-02-06 18:39:29,004 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 163 transitions, 2024 flow [2025-02-06 18:39:29,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:29,004 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:29,004 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:29,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 18:39:29,004 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:29,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:29,005 INFO L85 PathProgramCache]: Analyzing trace with hash -704661985, now seen corresponding path program 1 times [2025-02-06 18:39:29,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:29,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428920346] [2025-02-06 18:39:29,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:29,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:29,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:29,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:29,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:29,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:29,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:29,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:29,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428920346] [2025-02-06 18:39:29,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428920346] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:29,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:29,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:29,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714660941] [2025-02-06 18:39:29,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:29,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:29,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:29,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:29,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:29,341 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:29,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 163 transitions, 2024 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:29,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:29,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:29,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:30,271 INFO L124 PetriNetUnfolderBase]: 1890/3488 cut-off events. [2025-02-06 18:39:30,271 INFO L125 PetriNetUnfolderBase]: For 36353/36359 co-relation queries the response was YES. [2025-02-06 18:39:30,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18698 conditions, 3488 events. 1890/3488 cut-off events. For 36353/36359 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 23758 event pairs, 682 based on Foata normal form. 90/3438 useless extension candidates. Maximal degree in co-relation 18545. Up to 1593 conditions per place. [2025-02-06 18:39:30,289 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 169 selfloop transitions, 106 changer transitions 19/295 dead transitions. [2025-02-06 18:39:30,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 295 transitions, 3599 flow [2025-02-06 18:39:30,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-06 18:39:30,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-02-06 18:39:30,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 270 transitions. [2025-02-06 18:39:30,291 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3452685421994885 [2025-02-06 18:39:30,291 INFO L175 Difference]: Start difference. First operand has 140 places, 163 transitions, 2024 flow. Second operand 23 states and 270 transitions. [2025-02-06 18:39:30,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 295 transitions, 3599 flow [2025-02-06 18:39:30,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 295 transitions, 3421 flow, removed 89 selfloop flow, removed 0 redundant places. [2025-02-06 18:39:30,379 INFO L231 Difference]: Finished difference. Result has 170 places, 182 transitions, 2593 flow [2025-02-06 18:39:30,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1842, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2593, PETRI_PLACES=170, PETRI_TRANSITIONS=182} [2025-02-06 18:39:30,380 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 135 predicate places. [2025-02-06 18:39:30,380 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 182 transitions, 2593 flow [2025-02-06 18:39:30,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:30,380 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:30,381 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:30,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 18:39:30,381 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:30,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:30,381 INFO L85 PathProgramCache]: Analyzing trace with hash 2034114544, now seen corresponding path program 1 times [2025-02-06 18:39:30,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:30,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563071497] [2025-02-06 18:39:30,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:30,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:30,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:30,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:30,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:30,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:30,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:30,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:30,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563071497] [2025-02-06 18:39:30,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563071497] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:30,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:30,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:39:30,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071349221] [2025-02-06 18:39:30,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:30,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:39:30,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:30,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:39:30,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:39:30,443 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 34 [2025-02-06 18:39:30,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 182 transitions, 2593 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:30,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:30,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 34 [2025-02-06 18:39:30,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:30,721 INFO L124 PetriNetUnfolderBase]: 781/1490 cut-off events. [2025-02-06 18:39:30,721 INFO L125 PetriNetUnfolderBase]: For 18550/18550 co-relation queries the response was YES. [2025-02-06 18:39:30,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8007 conditions, 1490 events. 781/1490 cut-off events. For 18550/18550 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 9442 event pairs, 57 based on Foata normal form. 0/1442 useless extension candidates. Maximal degree in co-relation 7843. Up to 856 conditions per place. [2025-02-06 18:39:30,729 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 240 selfloop transitions, 7 changer transitions 6/253 dead transitions. [2025-02-06 18:39:30,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 253 transitions, 4321 flow [2025-02-06 18:39:30,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:39:30,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:39:30,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2025-02-06 18:39:30,732 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4852941176470588 [2025-02-06 18:39:30,732 INFO L175 Difference]: Start difference. First operand has 170 places, 182 transitions, 2593 flow. Second operand 4 states and 66 transitions. [2025-02-06 18:39:30,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 253 transitions, 4321 flow [2025-02-06 18:39:30,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 253 transitions, 3808 flow, removed 117 selfloop flow, removed 24 redundant places. [2025-02-06 18:39:30,758 INFO L231 Difference]: Finished difference. Result has 138 places, 103 transitions, 1228 flow [2025-02-06 18:39:30,758 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1249, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1228, PETRI_PLACES=138, PETRI_TRANSITIONS=103} [2025-02-06 18:39:30,759 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 103 predicate places. [2025-02-06 18:39:30,760 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 103 transitions, 1228 flow [2025-02-06 18:39:30,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:30,760 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:30,761 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:30,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 18:39:30,761 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:30,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:30,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1916927862, now seen corresponding path program 2 times [2025-02-06 18:39:30,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:30,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804273614] [2025-02-06 18:39:30,761 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:39:30,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:30,776 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:30,783 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:30,784 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:30,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:31,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:31,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:31,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804273614] [2025-02-06 18:39:31,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804273614] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:31,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:31,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:39:31,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690302332] [2025-02-06 18:39:31,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:31,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:39:31,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:31,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:39:31,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:39:31,013 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:31,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 103 transitions, 1228 flow. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:31,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:31,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:31,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:31,389 INFO L124 PetriNetUnfolderBase]: 713/1368 cut-off events. [2025-02-06 18:39:31,389 INFO L125 PetriNetUnfolderBase]: For 10209/10209 co-relation queries the response was YES. [2025-02-06 18:39:31,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7090 conditions, 1368 events. 713/1368 cut-off events. For 10209/10209 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 7843 event pairs, 233 based on Foata normal form. 20/1340 useless extension candidates. Maximal degree in co-relation 6975. Up to 548 conditions per place. [2025-02-06 18:39:31,396 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 116 selfloop transitions, 34 changer transitions 8/158 dead transitions. [2025-02-06 18:39:31,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 158 transitions, 1842 flow [2025-02-06 18:39:31,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 18:39:31,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-06 18:39:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 138 transitions. [2025-02-06 18:39:31,398 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3689839572192513 [2025-02-06 18:39:31,398 INFO L175 Difference]: Start difference. First operand has 138 places, 103 transitions, 1228 flow. Second operand 11 states and 138 transitions. [2025-02-06 18:39:31,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 158 transitions, 1842 flow [2025-02-06 18:39:31,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 158 transitions, 1746 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-06 18:39:31,421 INFO L231 Difference]: Finished difference. Result has 144 places, 100 transitions, 1212 flow [2025-02-06 18:39:31,421 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1159, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1212, PETRI_PLACES=144, PETRI_TRANSITIONS=100} [2025-02-06 18:39:31,422 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 109 predicate places. [2025-02-06 18:39:31,422 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 100 transitions, 1212 flow [2025-02-06 18:39:31,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:31,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:31,423 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:31,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 18:39:31,423 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:31,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:31,423 INFO L85 PathProgramCache]: Analyzing trace with hash -972419425, now seen corresponding path program 1 times [2025-02-06 18:39:31,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:31,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777861412] [2025-02-06 18:39:31,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:31,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:31,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:31,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:31,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:31,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:31,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:31,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777861412] [2025-02-06 18:39:31,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777861412] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:31,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:31,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:31,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820774784] [2025-02-06 18:39:31,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:31,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:31,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:31,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:31,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:31,767 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:31,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 100 transitions, 1212 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:31,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:31,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:31,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:32,237 INFO L124 PetriNetUnfolderBase]: 701/1356 cut-off events. [2025-02-06 18:39:32,237 INFO L125 PetriNetUnfolderBase]: For 10176/10176 co-relation queries the response was YES. [2025-02-06 18:39:32,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6957 conditions, 1356 events. 701/1356 cut-off events. For 10176/10176 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 7881 event pairs, 213 based on Foata normal form. 0/1324 useless extension candidates. Maximal degree in co-relation 6859. Up to 414 conditions per place. [2025-02-06 18:39:32,244 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 98 selfloop transitions, 54 changer transitions 9/161 dead transitions. [2025-02-06 18:39:32,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 161 transitions, 1837 flow [2025-02-06 18:39:32,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 18:39:32,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-06 18:39:32,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 200 transitions. [2025-02-06 18:39:32,246 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.29411764705882354 [2025-02-06 18:39:32,246 INFO L175 Difference]: Start difference. First operand has 144 places, 100 transitions, 1212 flow. Second operand 20 states and 200 transitions. [2025-02-06 18:39:32,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 161 transitions, 1837 flow [2025-02-06 18:39:32,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 161 transitions, 1750 flow, removed 9 selfloop flow, removed 9 redundant places. [2025-02-06 18:39:32,270 INFO L231 Difference]: Finished difference. Result has 156 places, 102 transitions, 1279 flow [2025-02-06 18:39:32,270 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1130, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1279, PETRI_PLACES=156, PETRI_TRANSITIONS=102} [2025-02-06 18:39:32,271 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 121 predicate places. [2025-02-06 18:39:32,271 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 102 transitions, 1279 flow [2025-02-06 18:39:32,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:32,271 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:32,271 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:32,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 18:39:32,271 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:32,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:32,272 INFO L85 PathProgramCache]: Analyzing trace with hash -972419426, now seen corresponding path program 1 times [2025-02-06 18:39:32,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:32,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542443856] [2025-02-06 18:39:32,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:32,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:32,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:32,285 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:32,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:32,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:32,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:32,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:32,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542443856] [2025-02-06 18:39:32,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542443856] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:32,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:32,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:39:32,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820322046] [2025-02-06 18:39:32,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:32,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:39:32,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:32,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:39:32,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:39:32,390 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:32,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 102 transitions, 1279 flow. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:32,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:32,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:32,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:32,659 INFO L124 PetriNetUnfolderBase]: 675/1322 cut-off events. [2025-02-06 18:39:32,660 INFO L125 PetriNetUnfolderBase]: For 11544/11544 co-relation queries the response was YES. [2025-02-06 18:39:32,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6896 conditions, 1322 events. 675/1322 cut-off events. For 11544/11544 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 7681 event pairs, 263 based on Foata normal form. 32/1354 useless extension candidates. Maximal degree in co-relation 6794. Up to 444 conditions per place. [2025-02-06 18:39:32,665 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 98 selfloop transitions, 21 changer transitions 16/135 dead transitions. [2025-02-06 18:39:32,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 135 transitions, 1712 flow [2025-02-06 18:39:32,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 18:39:32,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 18:39:32,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 103 transitions. [2025-02-06 18:39:32,666 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3786764705882353 [2025-02-06 18:39:32,666 INFO L175 Difference]: Start difference. First operand has 156 places, 102 transitions, 1279 flow. Second operand 8 states and 103 transitions. [2025-02-06 18:39:32,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 135 transitions, 1712 flow [2025-02-06 18:39:32,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 135 transitions, 1612 flow, removed 8 selfloop flow, removed 15 redundant places. [2025-02-06 18:39:32,689 INFO L231 Difference]: Finished difference. Result has 147 places, 91 transitions, 1056 flow [2025-02-06 18:39:32,690 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1163, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1056, PETRI_PLACES=147, PETRI_TRANSITIONS=91} [2025-02-06 18:39:32,690 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 112 predicate places. [2025-02-06 18:39:32,691 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 91 transitions, 1056 flow [2025-02-06 18:39:32,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:32,691 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:32,691 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:32,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 18:39:32,691 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:32,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:32,692 INFO L85 PathProgramCache]: Analyzing trace with hash -972204385, now seen corresponding path program 2 times [2025-02-06 18:39:32,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:32,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648812115] [2025-02-06 18:39:32,692 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:39:32,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:32,703 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:32,708 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:32,708 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:32,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:32,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:32,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:32,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648812115] [2025-02-06 18:39:32,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648812115] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:32,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:32,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:32,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545920523] [2025-02-06 18:39:32,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:32,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:32,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:32,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:32,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:32,949 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:32,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 91 transitions, 1056 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:32,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:32,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:32,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:33,415 INFO L124 PetriNetUnfolderBase]: 558/1093 cut-off events. [2025-02-06 18:39:33,415 INFO L125 PetriNetUnfolderBase]: For 9409/9409 co-relation queries the response was YES. [2025-02-06 18:39:33,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5582 conditions, 1093 events. 558/1093 cut-off events. For 9409/9409 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 6050 event pairs, 112 based on Foata normal form. 20/1113 useless extension candidates. Maximal degree in co-relation 5486. Up to 390 conditions per place. [2025-02-06 18:39:33,420 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 80 selfloop transitions, 54 changer transitions 13/147 dead transitions. [2025-02-06 18:39:33,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 147 transitions, 1556 flow [2025-02-06 18:39:33,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 18:39:33,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-06 18:39:33,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 207 transitions. [2025-02-06 18:39:33,421 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2767379679144385 [2025-02-06 18:39:33,421 INFO L175 Difference]: Start difference. First operand has 147 places, 91 transitions, 1056 flow. Second operand 22 states and 207 transitions. [2025-02-06 18:39:33,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 147 transitions, 1556 flow [2025-02-06 18:39:33,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 147 transitions, 1463 flow, removed 18 selfloop flow, removed 10 redundant places. [2025-02-06 18:39:33,440 INFO L231 Difference]: Finished difference. Result has 156 places, 88 transitions, 1060 flow [2025-02-06 18:39:33,441 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=953, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1060, PETRI_PLACES=156, PETRI_TRANSITIONS=88} [2025-02-06 18:39:33,441 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 121 predicate places. [2025-02-06 18:39:33,442 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 88 transitions, 1060 flow [2025-02-06 18:39:33,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:33,442 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:33,442 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:33,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 18:39:33,442 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:33,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:33,443 INFO L85 PathProgramCache]: Analyzing trace with hash 754200936, now seen corresponding path program 3 times [2025-02-06 18:39:33,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:33,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001764361] [2025-02-06 18:39:33,443 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:33,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:33,476 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:33,488 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:33,488 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:39:33,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:33,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:33,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001764361] [2025-02-06 18:39:33,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001764361] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:33,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:33,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 18:39:33,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908142723] [2025-02-06 18:39:33,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:33,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 18:39:33,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:33,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 18:39:33,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:39:33,647 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:33,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 88 transitions, 1060 flow. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2025-02-06 18:39:33,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:33,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:33,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:33,911 INFO L124 PetriNetUnfolderBase]: 499/972 cut-off events. [2025-02-06 18:39:33,911 INFO L125 PetriNetUnfolderBase]: For 7177/7177 co-relation queries the response was YES. [2025-02-06 18:39:33,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4959 conditions, 972 events. 499/972 cut-off events. For 7177/7177 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5188 event pairs, 183 based on Foata normal form. 20/992 useless extension candidates. Maximal degree in co-relation 4886. Up to 405 conditions per place. [2025-02-06 18:39:33,916 INFO L140 encePairwiseOnDemand]: 25/34 looper letters, 69 selfloop transitions, 12 changer transitions 41/122 dead transitions. [2025-02-06 18:39:33,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 122 transitions, 1383 flow [2025-02-06 18:39:33,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:39:33,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:39:33,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 117 transitions. [2025-02-06 18:39:33,918 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34411764705882353 [2025-02-06 18:39:33,918 INFO L175 Difference]: Start difference. First operand has 156 places, 88 transitions, 1060 flow. Second operand 10 states and 117 transitions. [2025-02-06 18:39:33,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 122 transitions, 1383 flow [2025-02-06 18:39:33,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 122 transitions, 1232 flow, removed 7 selfloop flow, removed 26 redundant places. [2025-02-06 18:39:33,930 INFO L231 Difference]: Finished difference. Result has 134 places, 65 transitions, 685 flow [2025-02-06 18:39:33,930 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=685, PETRI_PLACES=134, PETRI_TRANSITIONS=65} [2025-02-06 18:39:33,930 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 99 predicate places. [2025-02-06 18:39:33,930 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 65 transitions, 685 flow [2025-02-06 18:39:33,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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) [2025-02-06 18:39:33,930 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:33,931 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:33,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-06 18:39:33,931 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:33,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:33,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1145048635, now seen corresponding path program 2 times [2025-02-06 18:39:33,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:33,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162679539] [2025-02-06 18:39:33,932 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:39:33,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:33,941 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:33,945 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:33,945 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:33,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:34,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:34,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:34,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162679539] [2025-02-06 18:39:34,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162679539] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:34,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:34,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 18:39:34,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136920232] [2025-02-06 18:39:34,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:34,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:39:34,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:34,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:39:34,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:39:34,197 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:34,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 65 transitions, 685 flow. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:34,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:34,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:34,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:34,561 INFO L124 PetriNetUnfolderBase]: 445/866 cut-off events. [2025-02-06 18:39:34,561 INFO L125 PetriNetUnfolderBase]: For 5730/5730 co-relation queries the response was YES. [2025-02-06 18:39:34,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4218 conditions, 866 events. 445/866 cut-off events. For 5730/5730 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 4581 event pairs, 84 based on Foata normal form. 32/898 useless extension candidates. Maximal degree in co-relation 4171. Up to 290 conditions per place. [2025-02-06 18:39:34,565 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 61 selfloop transitions, 39 changer transitions 8/108 dead transitions. [2025-02-06 18:39:34,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 108 transitions, 1110 flow [2025-02-06 18:39:34,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-06 18:39:34,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-06 18:39:34,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 152 transitions. [2025-02-06 18:39:34,570 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.27941176470588236 [2025-02-06 18:39:34,570 INFO L175 Difference]: Start difference. First operand has 134 places, 65 transitions, 685 flow. Second operand 16 states and 152 transitions. [2025-02-06 18:39:34,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 108 transitions, 1110 flow [2025-02-06 18:39:34,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 108 transitions, 1009 flow, removed 20 selfloop flow, removed 16 redundant places. [2025-02-06 18:39:34,580 INFO L231 Difference]: Finished difference. Result has 120 places, 68 transitions, 721 flow [2025-02-06 18:39:34,580 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=721, PETRI_PLACES=120, PETRI_TRANSITIONS=68} [2025-02-06 18:39:34,580 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 85 predicate places. [2025-02-06 18:39:34,580 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 68 transitions, 721 flow [2025-02-06 18:39:34,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:34,580 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:34,580 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:34,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-06 18:39:34,581 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:34,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:34,582 INFO L85 PathProgramCache]: Analyzing trace with hash -937978346, now seen corresponding path program 4 times [2025-02-06 18:39:34,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:34,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969011852] [2025-02-06 18:39:34,582 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:39:34,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:34,593 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:39:34,597 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:34,597 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:39:34,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:34,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:34,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:34,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969011852] [2025-02-06 18:39:34,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969011852] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:34,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:34,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:39:34,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122580125] [2025-02-06 18:39:34,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:34,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:39:34,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:34,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:39:34,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:39:34,761 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:34,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 68 transitions, 721 flow. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:34,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:34,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:34,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:34,989 INFO L124 PetriNetUnfolderBase]: 385/760 cut-off events. [2025-02-06 18:39:34,989 INFO L125 PetriNetUnfolderBase]: For 3106/3106 co-relation queries the response was YES. [2025-02-06 18:39:34,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3468 conditions, 760 events. 385/760 cut-off events. For 3106/3106 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3945 event pairs, 88 based on Foata normal form. 30/790 useless extension candidates. Maximal degree in co-relation 3427. Up to 440 conditions per place. [2025-02-06 18:39:34,992 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 61 selfloop transitions, 25 changer transitions 6/92 dead transitions. [2025-02-06 18:39:34,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 92 transitions, 958 flow [2025-02-06 18:39:34,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 18:39:34,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 18:39:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 100 transitions. [2025-02-06 18:39:34,993 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.32679738562091504 [2025-02-06 18:39:34,993 INFO L175 Difference]: Start difference. First operand has 120 places, 68 transitions, 721 flow. Second operand 9 states and 100 transitions. [2025-02-06 18:39:34,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 92 transitions, 958 flow [2025-02-06 18:39:34,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 92 transitions, 846 flow, removed 6 selfloop flow, removed 16 redundant places. [2025-02-06 18:39:34,998 INFO L231 Difference]: Finished difference. Result has 111 places, 61 transitions, 578 flow [2025-02-06 18:39:34,999 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=578, PETRI_PLACES=111, PETRI_TRANSITIONS=61} [2025-02-06 18:39:34,999 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 76 predicate places. [2025-02-06 18:39:34,999 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 61 transitions, 578 flow [2025-02-06 18:39:34,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:34,999 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:35,000 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:35,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 18:39:35,000 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:35,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:35,001 INFO L85 PathProgramCache]: Analyzing trace with hash -945660356, now seen corresponding path program 2 times [2025-02-06 18:39:35,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:35,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683890982] [2025-02-06 18:39:35,001 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:39:35,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:35,014 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:35,019 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:35,021 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:35,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:35,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:35,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:35,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683890982] [2025-02-06 18:39:35,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683890982] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:35,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:35,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:39:35,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764132091] [2025-02-06 18:39:35,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:35,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:39:35,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:35,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:39:35,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:39:35,136 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:35,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 61 transitions, 578 flow. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:35,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:35,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:35,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:35,293 INFO L124 PetriNetUnfolderBase]: 327/656 cut-off events. [2025-02-06 18:39:35,293 INFO L125 PetriNetUnfolderBase]: For 1638/1638 co-relation queries the response was YES. [2025-02-06 18:39:35,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2864 conditions, 656 events. 327/656 cut-off events. For 1638/1638 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3324 event pairs, 54 based on Foata normal form. 48/704 useless extension candidates. Maximal degree in co-relation 2830. Up to 248 conditions per place. [2025-02-06 18:39:35,296 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 56 selfloop transitions, 14 changer transitions 11/81 dead transitions. [2025-02-06 18:39:35,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 81 transitions, 809 flow [2025-02-06 18:39:35,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:39:35,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:39:35,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 79 transitions. [2025-02-06 18:39:35,297 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3319327731092437 [2025-02-06 18:39:35,298 INFO L175 Difference]: Start difference. First operand has 111 places, 61 transitions, 578 flow. Second operand 7 states and 79 transitions. [2025-02-06 18:39:35,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 81 transitions, 809 flow [2025-02-06 18:39:35,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 81 transitions, 733 flow, removed 4 selfloop flow, removed 11 redundant places. [2025-02-06 18:39:35,302 INFO L231 Difference]: Finished difference. Result has 104 places, 51 transitions, 421 flow [2025-02-06 18:39:35,302 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=421, PETRI_PLACES=104, PETRI_TRANSITIONS=51} [2025-02-06 18:39:35,302 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 69 predicate places. [2025-02-06 18:39:35,303 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 51 transitions, 421 flow [2025-02-06 18:39:35,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:35,303 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:35,303 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:35,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-06 18:39:35,303 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:35,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:35,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1997664609, now seen corresponding path program 3 times [2025-02-06 18:39:35,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:35,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084228005] [2025-02-06 18:39:35,304 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:35,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:35,313 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:35,319 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:35,319 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:39:35,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:35,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:35,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084228005] [2025-02-06 18:39:35,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084228005] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:35,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:35,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 18:39:35,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652532899] [2025-02-06 18:39:35,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:35,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:39:35,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:35,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:39:35,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:39:35,589 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:35,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 51 transitions, 421 flow. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:35,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:35,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:35,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:35,950 INFO L124 PetriNetUnfolderBase]: 210/427 cut-off events. [2025-02-06 18:39:35,951 INFO L125 PetriNetUnfolderBase]: For 870/870 co-relation queries the response was YES. [2025-02-06 18:39:35,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1895 conditions, 427 events. 210/427 cut-off events. For 870/870 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1923 event pairs, 44 based on Foata normal form. 20/447 useless extension candidates. Maximal degree in co-relation 1863. Up to 222 conditions per place. [2025-02-06 18:39:35,953 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 32 selfloop transitions, 15 changer transitions 37/84 dead transitions. [2025-02-06 18:39:35,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 84 transitions, 697 flow [2025-02-06 18:39:35,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:39:35,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:39:35,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 150 transitions. [2025-02-06 18:39:35,954 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.24509803921568626 [2025-02-06 18:39:35,954 INFO L175 Difference]: Start difference. First operand has 104 places, 51 transitions, 421 flow. Second operand 18 states and 150 transitions. [2025-02-06 18:39:35,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 84 transitions, 697 flow [2025-02-06 18:39:35,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 84 transitions, 620 flow, removed 6 selfloop flow, removed 14 redundant places. [2025-02-06 18:39:35,959 INFO L231 Difference]: Finished difference. Result has 99 places, 31 transitions, 219 flow [2025-02-06 18:39:35,959 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=219, PETRI_PLACES=99, PETRI_TRANSITIONS=31} [2025-02-06 18:39:35,959 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 64 predicate places. [2025-02-06 18:39:35,959 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 31 transitions, 219 flow [2025-02-06 18:39:35,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:35,959 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:35,960 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:35,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-06 18:39:35,960 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:35,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:35,960 INFO L85 PathProgramCache]: Analyzing trace with hash -2003242029, now seen corresponding path program 3 times [2025-02-06 18:39:35,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:35,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418240793] [2025-02-06 18:39:35,961 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:35,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:35,975 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:35,980 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:35,980 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:39:35,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:36,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:36,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:36,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418240793] [2025-02-06 18:39:36,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418240793] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:36,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:36,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:36,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633984242] [2025-02-06 18:39:36,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:36,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:36,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:36,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:36,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:36,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:36,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 31 transitions, 219 flow. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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) [2025-02-06 18:39:36,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:36,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:36,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:36,373 INFO L124 PetriNetUnfolderBase]: 184/369 cut-off events. [2025-02-06 18:39:36,374 INFO L125 PetriNetUnfolderBase]: For 383/383 co-relation queries the response was YES. [2025-02-06 18:39:36,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1507 conditions, 369 events. 184/369 cut-off events. For 383/383 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1589 event pairs, 42 based on Foata normal form. 16/385 useless extension candidates. Maximal degree in co-relation 1478. Up to 206 conditions per place. [2025-02-06 18:39:36,375 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 30 selfloop transitions, 12 changer transitions 18/60 dead transitions. [2025-02-06 18:39:36,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 60 transitions, 475 flow [2025-02-06 18:39:36,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 18:39:36,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-06 18:39:36,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 104 transitions. [2025-02-06 18:39:36,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2549019607843137 [2025-02-06 18:39:36,376 INFO L175 Difference]: Start difference. First operand has 99 places, 31 transitions, 219 flow. Second operand 12 states and 104 transitions. [2025-02-06 18:39:36,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 60 transitions, 475 flow [2025-02-06 18:39:36,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 60 transitions, 385 flow, removed 9 selfloop flow, removed 22 redundant places. [2025-02-06 18:39:36,378 INFO L231 Difference]: Finished difference. Result has 67 places, 29 transitions, 172 flow [2025-02-06 18:39:36,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=172, PETRI_PLACES=67, PETRI_TRANSITIONS=29} [2025-02-06 18:39:36,379 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 32 predicate places. [2025-02-06 18:39:36,380 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 29 transitions, 172 flow [2025-02-06 18:39:36,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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) [2025-02-06 18:39:36,380 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:36,380 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:36,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-06 18:39:36,380 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:36,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:36,380 INFO L85 PathProgramCache]: Analyzing trace with hash -2141770179, now seen corresponding path program 4 times [2025-02-06 18:39:36,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:36,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224465420] [2025-02-06 18:39:36,381 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:39:36,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:36,389 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:39:36,394 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:36,394 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:39:36,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:36,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:36,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:36,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224465420] [2025-02-06 18:39:36,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224465420] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:39:36,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852024616] [2025-02-06 18:39:36,592 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:39:36,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:39:36,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:39:36,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:39:36,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 18:39:36,722 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:39:36,756 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:36,756 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:39:36,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:36,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-06 18:39:36,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:39:36,797 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 18:39:36,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2025-02-06 18:39:36,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2025-02-06 18:39:36,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-02-06 18:39:36,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2025-02-06 18:39:37,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2025-02-06 18:39:37,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:37,011 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:39:37,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2025-02-06 18:39:37,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:37,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852024616] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:39:37,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:39:37,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 18 [2025-02-06 18:39:37,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714241561] [2025-02-06 18:39:37,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:39:37,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-06 18:39:37,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:37,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-06 18:39:37,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2025-02-06 18:39:37,427 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:37,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 29 transitions, 172 flow. Second operand has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 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) [2025-02-06 18:39:37,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:37,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:37,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:38,230 INFO L124 PetriNetUnfolderBase]: 103/212 cut-off events. [2025-02-06 18:39:38,230 INFO L125 PetriNetUnfolderBase]: For 199/199 co-relation queries the response was YES. [2025-02-06 18:39:38,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 212 events. 103/212 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 737 event pairs, 2 based on Foata normal form. 24/236 useless extension candidates. Maximal degree in co-relation 817. Up to 40 conditions per place. [2025-02-06 18:39:38,231 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 30 selfloop transitions, 24 changer transitions 25/79 dead transitions. [2025-02-06 18:39:38,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 79 transitions, 524 flow [2025-02-06 18:39:38,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-06 18:39:38,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-02-06 18:39:38,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 181 transitions. [2025-02-06 18:39:38,232 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.21294117647058824 [2025-02-06 18:39:38,232 INFO L175 Difference]: Start difference. First operand has 67 places, 29 transitions, 172 flow. Second operand 25 states and 181 transitions. [2025-02-06 18:39:38,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 79 transitions, 524 flow [2025-02-06 18:39:38,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 79 transitions, 472 flow, removed 2 selfloop flow, removed 10 redundant places. [2025-02-06 18:39:38,234 INFO L231 Difference]: Finished difference. Result has 74 places, 32 transitions, 186 flow [2025-02-06 18:39:38,234 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=186, PETRI_PLACES=74, PETRI_TRANSITIONS=32} [2025-02-06 18:39:38,234 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 39 predicate places. [2025-02-06 18:39:38,234 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 32 transitions, 186 flow [2025-02-06 18:39:38,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.684210526315789) internal successors, (108), 19 states have internal predecessors, (108), 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) [2025-02-06 18:39:38,234 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:38,234 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:38,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 18:39:38,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-02-06 18:39:38,439 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:38,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:38,439 INFO L85 PathProgramCache]: Analyzing trace with hash -2143644130, now seen corresponding path program 3 times [2025-02-06 18:39:38,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:38,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812685495] [2025-02-06 18:39:38,439 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:38,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:38,450 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:39:38,455 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:38,456 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 18:39:38,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:38,679 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:38,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:38,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812685495] [2025-02-06 18:39:38,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812685495] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:39:38,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786377567] [2025-02-06 18:39:38,679 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:38,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:39:38,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:39:38,681 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:39:38,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 18:39:38,784 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:39:38,812 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:38,812 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 18:39:38,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:38,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-06 18:39:38,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:39:38,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 18:39:38,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2025-02-06 18:39:38,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 18:39:38,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2025-02-06 18:39:38,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:39:38,942 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:39:38,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2025-02-06 18:39:39,016 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:39:39,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786377567] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:39:39,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:39:39,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 5] total 20 [2025-02-06 18:39:39,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661383562] [2025-02-06 18:39:39,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:39:39,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-06 18:39:39,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:39,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-06 18:39:39,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2025-02-06 18:39:39,019 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:39,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 32 transitions, 186 flow. Second operand has 21 states, 21 states have (on average 5.904761904761905) internal successors, (124), 21 states have internal predecessors, (124), 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) [2025-02-06 18:39:39,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:39,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:39,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:39,441 INFO L124 PetriNetUnfolderBase]: 45/98 cut-off events. [2025-02-06 18:39:39,441 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2025-02-06 18:39:39,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 98 events. 45/98 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 223 event pairs, 0 based on Foata normal form. 8/106 useless extension candidates. Maximal degree in co-relation 357. Up to 20 conditions per place. [2025-02-06 18:39:39,442 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2025-02-06 18:39:39,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 47 transitions, 294 flow [2025-02-06 18:39:39,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:39:39,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:39:39,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 117 transitions. [2025-02-06 18:39:39,443 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.20242214532871972 [2025-02-06 18:39:39,443 INFO L175 Difference]: Start difference. First operand has 74 places, 32 transitions, 186 flow. Second operand 17 states and 117 transitions. [2025-02-06 18:39:39,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 47 transitions, 294 flow [2025-02-06 18:39:39,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 47 transitions, 246 flow, removed 9 selfloop flow, removed 12 redundant places. [2025-02-06 18:39:39,444 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2025-02-06 18:39:39,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2025-02-06 18:39:39,445 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 27 predicate places. [2025-02-06 18:39:39,445 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2025-02-06 18:39:39,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.904761904761905) internal successors, (124), 21 states have internal predecessors, (124), 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) [2025-02-06 18:39:39,447 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2025-02-06 18:39:39,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2025-02-06 18:39:39,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2025-02-06 18:39:39,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2025-02-06 18:39:39,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2025-02-06 18:39:39,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2025-02-06 18:39:39,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2025-02-06 18:39:39,448 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2025-02-06 18:39:39,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 18:39:39,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:39:39,654 INFO L422 BasicCegarLoop]: Path program histogram: [4, 4, 4, 3, 3, 3, 1, 1, 1] [2025-02-06 18:39:39,659 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:39:39,659 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:39:39,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:39:39 BasicIcfg [2025-02-06 18:39:39,665 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:39:39,665 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:39:39,665 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:39:39,665 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:39:39,666 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:39:18" (3/4) ... [2025-02-06 18:39:39,668 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:39:39,670 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure my_callback [2025-02-06 18:39:39,677 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 124 nodes and edges [2025-02-06 18:39:39,681 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2025-02-06 18:39:39,681 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-02-06 18:39:39,681 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 18:39:39,772 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:39:39,772 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:39:39,772 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:39:39,774 INFO L158 Benchmark]: Toolchain (without parser) took 22264.44ms. Allocated memory was 201.3MB in the beginning and 604.0MB in the end (delta: 402.7MB). Free memory was 155.6MB in the beginning and 245.5MB in the end (delta: -89.8MB). Peak memory consumption was 310.3MB. Max. memory is 16.1GB. [2025-02-06 18:39:39,774 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 218.1MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:39:39,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.92ms. Allocated memory is still 201.3MB. Free memory was 155.3MB in the beginning and 125.0MB in the end (delta: 30.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 18:39:39,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.89ms. Allocated memory is still 201.3MB. Free memory was 125.0MB in the beginning and 122.5MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:39:39,775 INFO L158 Benchmark]: Boogie Preprocessor took 33.38ms. Allocated memory is still 201.3MB. Free memory was 122.5MB in the beginning and 119.3MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:39:39,775 INFO L158 Benchmark]: IcfgBuilder took 592.72ms. Allocated memory is still 201.3MB. Free memory was 119.3MB in the beginning and 70.8MB in the end (delta: 48.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-06 18:39:39,775 INFO L158 Benchmark]: TraceAbstraction took 21021.89ms. Allocated memory was 201.3MB in the beginning and 604.0MB in the end (delta: 402.7MB). Free memory was 70.2MB in the beginning and 253.9MB in the end (delta: -183.7MB). Peak memory consumption was 218.1MB. Max. memory is 16.1GB. [2025-02-06 18:39:39,775 INFO L158 Benchmark]: Witness Printer took 106.98ms. Allocated memory is still 604.0MB. Free memory was 253.9MB in the beginning and 245.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:39:39,776 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 218.1MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 463.92ms. Allocated memory is still 201.3MB. Free memory was 155.3MB in the beginning and 125.0MB in the end (delta: 30.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.89ms. Allocated memory is still 201.3MB. Free memory was 125.0MB in the beginning and 122.5MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.38ms. Allocated memory is still 201.3MB. Free memory was 122.5MB in the beginning and 119.3MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 592.72ms. Allocated memory is still 201.3MB. Free memory was 119.3MB in the beginning and 70.8MB in the end (delta: 48.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 21021.89ms. Allocated memory was 201.3MB in the beginning and 604.0MB in the end (delta: 402.7MB). Free memory was 70.2MB in the beginning and 253.9MB in the end (delta: -183.7MB). Peak memory consumption was 218.1MB. Max. memory is 16.1GB. * Witness Printer took 106.98ms. Allocated memory is still 604.0MB. Free memory was 253.9MB in the beginning and 245.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3914]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 3914]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 42 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 20.9s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 12.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2013 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2012 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 283 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7867 IncrementalHoareTripleChecker+Invalid, 8150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 283 mSolverCounterUnsat, 1 mSDtfsCounter, 7867 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 459 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 387 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1224 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2593occurred in iteration=11, InterpolantAutomatonStates: 349, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 3074 SizeOfPredicates, 25 NumberOfNonLiveVariables, 365 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 28 InterpolantComputations, 22 PerfectInterpolantSequences, 7/21 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 18:39:39,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE