./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/ldv-races/race-2_2-container_of.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-2_2-container_of.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 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:39:09,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:39:10,010 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:39:10,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:39:10,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:39:10,043 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:39:10,044 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:39:10,044 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:39:10,045 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:39:10,045 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:39:10,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:39:10,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:39:10,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:39:10,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:39:10,046 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:39:10,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:39:10,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:39:10,046 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:39:10,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:39:10,047 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:39:10,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:39:10,047 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:39:10,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:39:10,047 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:39:10,047 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:39:10,047 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:39:10,047 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:39:10,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:39:10,048 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:39:10,048 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:39:10,048 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:39:10,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:39:10,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:39:10,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:39:10,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:39:10,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:39:10,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:39:10,049 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:39:10,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:39:10,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:39:10,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:39:10,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:39:10,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:39:10,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:39:10,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:39:10,050 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-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 -> 6053c0f6a5de5dc1a7614e5acfd1de5bdb570ebc833d8c4c70a1e68bd98ac1b0 [2025-02-06 18:39:10,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:39:10,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:39:10,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:39:10,360 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:39:10,360 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:39:10,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2025-02-06 18:39:11,648 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4eae6d63e/e608b62a2f504d9aa61826cb8de418db/FLAG36718ba8d [2025-02-06 18:39:12,054 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:39:12,056 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_2-container_of.i [2025-02-06 18:39:12,093 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4eae6d63e/e608b62a2f504d9aa61826cb8de418db/FLAG36718ba8d [2025-02-06 18:39:12,110 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4eae6d63e/e608b62a2f504d9aa61826cb8de418db [2025-02-06 18:39:12,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:39:12,113 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:39:12,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:39:12,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:39:12,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:39:12,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,123 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@353fc2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12, skipping insertion in model container [2025-02-06 18:39:12,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,183 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:39:12,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:39:12,641 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:39:12,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:39:12,758 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:39:12,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12 WrapperNode [2025-02-06 18:39:12,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:39:12,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:39:12,760 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:39:12,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:39:12,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,820 INFO L138 Inliner]: procedures = 246, calls = 40, calls flagged for inlining = 11, calls inlined = 14, statements flattened = 120 [2025-02-06 18:39:12,821 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:39:12,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:39:12,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:39:12,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:39:12,827 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,831 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,845 INFO L175 MemorySlicer]: Split 15 memory accesses to 3 slices as follows [2, 2, 11]. 73 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 18:39:12,845 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,846 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,856 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,873 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:39:12,874 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:39:12,874 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:39:12,874 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:39:12,878 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12" (1/1) ... [2025-02-06 18:39:12,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:39:12,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:39:12,918 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 18:39:12,920 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 18:39:12,937 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-02-06 18:39:12,937 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-02-06 18:39:12,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 18:39:12,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:39:12,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:39:12,940 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 18:39:13,165 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:39:13,167 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:39:13,382 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:39:13,383 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:39:13,534 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:39:13,534 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:39:13,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:39:13 BoogieIcfgContainer [2025-02-06 18:39:13,535 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:39:13,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:39:13,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:39:13,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:39:13,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:39:12" (1/3) ... [2025-02-06 18:39:13,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cc3e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:39:13, skipping insertion in model container [2025-02-06 18:39:13,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:39:12" (2/3) ... [2025-02-06 18:39:13,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14cc3e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:39:13, skipping insertion in model container [2025-02-06 18:39:13,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:39:13" (3/3) ... [2025-02-06 18:39:13,546 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2025-02-06 18:39:13,559 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:39:13,562 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_2-container_of.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 18:39:13,562 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:39:13,626 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 18:39:13,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 82 flow [2025-02-06 18:39:13,711 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-02-06 18:39:13,715 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 18:39:13,718 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 18:39:13,719 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 34 transitions, 82 flow [2025-02-06 18:39:13,722 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 65 flow [2025-02-06 18:39:13,734 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:39:13,747 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;@4df453f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:39:13,748 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-06 18:39:13,756 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:39:13,757 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-02-06 18:39:13,757 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:39:13,757 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:13,758 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:13,758 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 18:39:13,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:13,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1403203418, now seen corresponding path program 1 times [2025-02-06 18:39:13,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:13,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155607796] [2025-02-06 18:39:13,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:13,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:13,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:39:14,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:39:14,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:14,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:14,718 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 18:39:14,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:14,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155607796] [2025-02-06 18:39:14,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155607796] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:14,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:14,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:39:14,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518465026] [2025-02-06 18:39:14,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:14,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:39:14,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:14,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:39:14,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:39:14,752 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:14,754 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 18:39:14,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:14,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:14,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:15,325 INFO L124 PetriNetUnfolderBase]: 769/1306 cut-off events. [2025-02-06 18:39:15,326 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-02-06 18:39:15,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2638 conditions, 1306 events. 769/1306 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 6471 event pairs, 347 based on Foata normal form. 0/1086 useless extension candidates. Maximal degree in co-relation 2568. Up to 850 conditions per place. [2025-02-06 18:39:15,344 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 63 selfloop transitions, 20 changer transitions 2/86 dead transitions. [2025-02-06 18:39:15,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 86 transitions, 366 flow [2025-02-06 18:39:15,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:39:15,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:39:15,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 129 transitions. [2025-02-06 18:39:15,363 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37941176470588234 [2025-02-06 18:39:15,364 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 65 flow. Second operand 10 states and 129 transitions. [2025-02-06 18:39:15,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 86 transitions, 366 flow [2025-02-06 18:39:15,373 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 18:39:15,379 INFO L231 Difference]: Finished difference. Result has 46 places, 48 transitions, 188 flow [2025-02-06 18:39:15,381 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 18:39:15,386 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2025-02-06 18:39:15,387 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 48 transitions, 188 flow [2025-02-06 18:39:15,387 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 18:39:15,387 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:15,388 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:15,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:39:15,389 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 18:39:15,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:15,391 INFO L85 PathProgramCache]: Analyzing trace with hash -993921536, now seen corresponding path program 1 times [2025-02-06 18:39:15,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:15,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680336555] [2025-02-06 18:39:15,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:15,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:15,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 18:39:15,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 18:39:15,433 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:15,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:15,831 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 18:39:15,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:15,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680336555] [2025-02-06 18:39:15,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680336555] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:15,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:15,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 18:39:15,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109779921] [2025-02-06 18:39:15,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:15,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:39:15,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:15,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:39:15,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 18:39:15,834 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:15,834 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 18:39:15,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:15,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:15,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:16,334 INFO L124 PetriNetUnfolderBase]: 899/1554 cut-off events. [2025-02-06 18:39:16,335 INFO L125 PetriNetUnfolderBase]: For 756/756 co-relation queries the response was YES. [2025-02-06 18:39:16,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3993 conditions, 1554 events. 899/1554 cut-off events. For 756/756 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 8221 event pairs, 533 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 18:39:16,348 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 64 selfloop transitions, 27 changer transitions 4/96 dead transitions. [2025-02-06 18:39:16,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 96 transitions, 550 flow [2025-02-06 18:39:16,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:39:16,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:39:16,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 125 transitions. [2025-02-06 18:39:16,352 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36764705882352944 [2025-02-06 18:39:16,352 INFO L175 Difference]: Start difference. First operand has 46 places, 48 transitions, 188 flow. Second operand 10 states and 125 transitions. [2025-02-06 18:39:16,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 96 transitions, 550 flow [2025-02-06 18:39:16,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 96 transitions, 548 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:39:16,358 INFO L231 Difference]: Finished difference. Result has 58 places, 64 transitions, 344 flow [2025-02-06 18:39:16,358 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=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=344, PETRI_PLACES=58, PETRI_TRANSITIONS=64} [2025-02-06 18:39:16,359 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 23 predicate places. [2025-02-06 18:39:16,359 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 64 transitions, 344 flow [2025-02-06 18:39:16,359 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 18:39:16,359 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:16,359 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:16,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:39:16,360 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 18:39:16,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:16,361 INFO L85 PathProgramCache]: Analyzing trace with hash 242750689, now seen corresponding path program 1 times [2025-02-06 18:39:16,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:16,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533115243] [2025-02-06 18:39:16,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:16,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:16,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:39:16,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:39:16,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:16,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:16,988 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 18:39:16,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:16,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533115243] [2025-02-06 18:39:16,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533115243] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:16,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:16,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:16,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482743966] [2025-02-06 18:39:16,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:16,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:16,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:16,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:16,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:16,992 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:16,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 64 transitions, 344 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 18:39:16,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:16,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:16,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:17,720 INFO L124 PetriNetUnfolderBase]: 1385/2406 cut-off events. [2025-02-06 18:39:17,720 INFO L125 PetriNetUnfolderBase]: For 2397/2397 co-relation queries the response was YES. [2025-02-06 18:39:17,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7248 conditions, 2406 events. 1385/2406 cut-off events. For 2397/2397 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 14186 event pairs, 625 based on Foata normal form. 58/2304 useless extension candidates. Maximal degree in co-relation 4622. Up to 1524 conditions per place. [2025-02-06 18:39:17,744 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 98 selfloop transitions, 49 changer transitions 7/155 dead transitions. [2025-02-06 18:39:17,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 155 transitions, 1108 flow [2025-02-06 18:39:17,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 18:39:17,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-06 18:39:17,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 154 transitions. [2025-02-06 18:39:17,747 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37745098039215685 [2025-02-06 18:39:17,747 INFO L175 Difference]: Start difference. First operand has 58 places, 64 transitions, 344 flow. Second operand 12 states and 154 transitions. [2025-02-06 18:39:17,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 155 transitions, 1108 flow [2025-02-06 18:39:17,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 155 transitions, 1108 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:39:17,767 INFO L231 Difference]: Finished difference. Result has 77 places, 104 transitions, 806 flow [2025-02-06 18:39:17,768 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=806, PETRI_PLACES=77, PETRI_TRANSITIONS=104} [2025-02-06 18:39:17,769 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 42 predicate places. [2025-02-06 18:39:17,769 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 104 transitions, 806 flow [2025-02-06 18:39:17,769 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 18:39:17,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:17,770 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:17,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:39:17,770 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 18:39:17,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:17,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1670126849, now seen corresponding path program 1 times [2025-02-06 18:39:17,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:17,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944903691] [2025-02-06 18:39:17,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:17,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:17,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:39:17,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:39:17,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:17,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:18,329 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 18:39:18,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:18,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944903691] [2025-02-06 18:39:18,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944903691] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:18,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:18,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:18,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050881092] [2025-02-06 18:39:18,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:18,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:18,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:18,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:18,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:18,334 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:18,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 104 transitions, 806 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 18:39:18,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:18,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:18,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:19,346 INFO L124 PetriNetUnfolderBase]: 1656/2895 cut-off events. [2025-02-06 18:39:19,346 INFO L125 PetriNetUnfolderBase]: For 8254/8262 co-relation queries the response was YES. [2025-02-06 18:39:19,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11049 conditions, 2895 events. 1656/2895 cut-off events. For 8254/8262 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 17861 event pairs, 731 based on Foata normal form. 62/2769 useless extension candidates. Maximal degree in co-relation 10738. Up to 1646 conditions per place. [2025-02-06 18:39:19,412 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 107 selfloop transitions, 96 changer transitions 5/209 dead transitions. [2025-02-06 18:39:19,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 209 transitions, 1918 flow [2025-02-06 18:39:19,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 18:39:19,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-06 18:39:19,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 221 transitions. [2025-02-06 18:39:19,415 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.325 [2025-02-06 18:39:19,415 INFO L175 Difference]: Start difference. First operand has 77 places, 104 transitions, 806 flow. Second operand 20 states and 221 transitions. [2025-02-06 18:39:19,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 209 transitions, 1918 flow [2025-02-06 18:39:19,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 209 transitions, 1889 flow, removed 10 selfloop flow, removed 2 redundant places. [2025-02-06 18:39:19,434 INFO L231 Difference]: Finished difference. Result has 103 places, 146 transitions, 1456 flow [2025-02-06 18:39:19,434 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=789, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1456, PETRI_PLACES=103, PETRI_TRANSITIONS=146} [2025-02-06 18:39:19,435 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 68 predicate places. [2025-02-06 18:39:19,435 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 146 transitions, 1456 flow [2025-02-06 18:39:19,435 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 18:39:19,435 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:19,436 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:19,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:39:19,436 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 18:39:19,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:19,436 INFO L85 PathProgramCache]: Analyzing trace with hash 55961343, now seen corresponding path program 2 times [2025-02-06 18:39:19,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:19,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767785557] [2025-02-06 18:39:19,437 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:39:19,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:19,454 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:39:19,460 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:39:19,461 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:19,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:19,865 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 18:39:19,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:19,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767785557] [2025-02-06 18:39:19,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767785557] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:19,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:19,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:19,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124783015] [2025-02-06 18:39:19,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:19,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:19,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:19,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:19,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:19,869 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:19,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 146 transitions, 1456 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 18:39:19,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:19,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:19,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:20,923 INFO L124 PetriNetUnfolderBase]: 1952/3469 cut-off events. [2025-02-06 18:39:20,924 INFO L125 PetriNetUnfolderBase]: For 16547/16549 co-relation queries the response was YES. [2025-02-06 18:39:20,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15370 conditions, 3469 events. 1952/3469 cut-off events. For 16547/16549 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 22748 event pairs, 1093 based on Foata normal form. 52/3313 useless extension candidates. Maximal degree in co-relation 15136. Up to 2295 conditions per place. [2025-02-06 18:39:20,954 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 144 selfloop transitions, 93 changer transitions 7/245 dead transitions. [2025-02-06 18:39:20,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 245 transitions, 2714 flow [2025-02-06 18:39:20,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 18:39:20,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-06 18:39:20,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 219 transitions. [2025-02-06 18:39:20,959 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3220588235294118 [2025-02-06 18:39:20,962 INFO L175 Difference]: Start difference. First operand has 103 places, 146 transitions, 1456 flow. Second operand 20 states and 219 transitions. [2025-02-06 18:39:20,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 245 transitions, 2714 flow [2025-02-06 18:39:20,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 245 transitions, 2646 flow, removed 19 selfloop flow, removed 4 redundant places. [2025-02-06 18:39:21,004 INFO L231 Difference]: Finished difference. Result has 124 places, 185 transitions, 2100 flow [2025-02-06 18:39:21,005 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1403, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2100, PETRI_PLACES=124, PETRI_TRANSITIONS=185} [2025-02-06 18:39:21,005 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 89 predicate places. [2025-02-06 18:39:21,005 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 185 transitions, 2100 flow [2025-02-06 18:39:21,005 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 18:39:21,006 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:21,006 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:21,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:39:21,006 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 18:39:21,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:21,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1476187439, now seen corresponding path program 3 times [2025-02-06 18:39:21,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:21,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609738243] [2025-02-06 18:39:21,008 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:21,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:21,028 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:39:21,035 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:39:21,036 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:39:21,036 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:21,463 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 18:39:21,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:21,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609738243] [2025-02-06 18:39:21,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609738243] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:21,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:21,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:21,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761082898] [2025-02-06 18:39:21,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:21,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:21,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:21,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:21,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:21,466 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:21,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 185 transitions, 2100 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 18:39:21,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:21,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:21,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:22,531 INFO L124 PetriNetUnfolderBase]: 1841/3313 cut-off events. [2025-02-06 18:39:22,531 INFO L125 PetriNetUnfolderBase]: For 20673/20675 co-relation queries the response was YES. [2025-02-06 18:39:22,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15560 conditions, 3313 events. 1841/3313 cut-off events. For 20673/20675 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 21730 event pairs, 982 based on Foata normal form. 56/3183 useless extension candidates. Maximal degree in co-relation 15299. Up to 1883 conditions per place. [2025-02-06 18:39:22,565 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 152 selfloop transitions, 115 changer transitions 4/272 dead transitions. [2025-02-06 18:39:22,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 272 transitions, 3349 flow [2025-02-06 18:39:22,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 18:39:22,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-06 18:39:22,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2025-02-06 18:39:22,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.32941176470588235 [2025-02-06 18:39:22,568 INFO L175 Difference]: Start difference. First operand has 124 places, 185 transitions, 2100 flow. Second operand 20 states and 224 transitions. [2025-02-06 18:39:22,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 272 transitions, 3349 flow [2025-02-06 18:39:22,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 272 transitions, 3180 flow, removed 50 selfloop flow, removed 6 redundant places. [2025-02-06 18:39:22,622 INFO L231 Difference]: Finished difference. Result has 142 places, 211 transitions, 2629 flow [2025-02-06 18:39:22,623 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1957, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2629, PETRI_PLACES=142, PETRI_TRANSITIONS=211} [2025-02-06 18:39:22,623 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 107 predicate places. [2025-02-06 18:39:22,623 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 211 transitions, 2629 flow [2025-02-06 18:39:22,624 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 18:39:22,624 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:22,624 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:22,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:39:22,624 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 18:39:22,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:22,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1675691263, now seen corresponding path program 2 times [2025-02-06 18:39:22,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:22,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974888277] [2025-02-06 18:39:22,625 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:39:22,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:22,639 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:39:22,644 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:39:22,645 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:22,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:22,978 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 18:39:22,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:22,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974888277] [2025-02-06 18:39:22,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974888277] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:22,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:22,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:22,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291478066] [2025-02-06 18:39:22,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:22,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:22,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:22,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:22,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:22,980 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:22,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 211 transitions, 2629 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 18:39:22,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:22,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:22,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:24,053 INFO L124 PetriNetUnfolderBase]: 1958/3583 cut-off events. [2025-02-06 18:39:24,054 INFO L125 PetriNetUnfolderBase]: For 27674/27686 co-relation queries the response was YES. [2025-02-06 18:39:24,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18223 conditions, 3583 events. 1958/3583 cut-off events. For 27674/27686 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 24444 event pairs, 1157 based on Foata normal form. 78/3475 useless extension candidates. Maximal degree in co-relation 17936. Up to 2114 conditions per place. [2025-02-06 18:39:24,084 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 164 selfloop transitions, 91 changer transitions 15/271 dead transitions. [2025-02-06 18:39:24,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 271 transitions, 3670 flow [2025-02-06 18:39:24,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 18:39:24,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-06 18:39:24,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 170 transitions. [2025-02-06 18:39:24,086 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2025-02-06 18:39:24,086 INFO L175 Difference]: Start difference. First operand has 142 places, 211 transitions, 2629 flow. Second operand 15 states and 170 transitions. [2025-02-06 18:39:24,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 271 transitions, 3670 flow [2025-02-06 18:39:24,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 271 transitions, 3343 flow, removed 48 selfloop flow, removed 15 redundant places. [2025-02-06 18:39:24,152 INFO L231 Difference]: Finished difference. Result has 144 places, 216 transitions, 2609 flow [2025-02-06 18:39:24,152 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2332, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2609, PETRI_PLACES=144, PETRI_TRANSITIONS=216} [2025-02-06 18:39:24,154 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 109 predicate places. [2025-02-06 18:39:24,155 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 216 transitions, 2609 flow [2025-02-06 18:39:24,155 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 18:39:24,155 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:24,155 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:24,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 18:39:24,155 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 18:39:24,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:24,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1476187663, now seen corresponding path program 3 times [2025-02-06 18:39:24,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:24,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650386080] [2025-02-06 18:39:24,156 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:24,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:24,174 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 12 statements into 1 equivalence classes. [2025-02-06 18:39:24,180 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 18:39:24,181 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:39:24,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:24,510 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 18:39:24,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:24,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650386080] [2025-02-06 18:39:24,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650386080] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:24,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:24,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 18:39:24,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870222676] [2025-02-06 18:39:24,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:24,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:39:24,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:24,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:39:24,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:39:24,513 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:24,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 216 transitions, 2609 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 18:39:24,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:24,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:24,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:25,542 INFO L124 PetriNetUnfolderBase]: 1873/3443 cut-off events. [2025-02-06 18:39:25,542 INFO L125 PetriNetUnfolderBase]: For 27156/27158 co-relation queries the response was YES. [2025-02-06 18:39:25,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17871 conditions, 3443 events. 1873/3443 cut-off events. For 27156/27158 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 23440 event pairs, 1027 based on Foata normal form. 72/3337 useless extension candidates. Maximal degree in co-relation 16341. Up to 2037 conditions per place. [2025-02-06 18:39:25,578 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 150 selfloop transitions, 120 changer transitions 13/284 dead transitions. [2025-02-06 18:39:25,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 284 transitions, 3701 flow [2025-02-06 18:39:25,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 18:39:25,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-02-06 18:39:25,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 210 transitions. [2025-02-06 18:39:25,580 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.32507739938080493 [2025-02-06 18:39:25,580 INFO L175 Difference]: Start difference. First operand has 144 places, 216 transitions, 2609 flow. Second operand 19 states and 210 transitions. [2025-02-06 18:39:25,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 284 transitions, 3701 flow [2025-02-06 18:39:25,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 284 transitions, 3512 flow, removed 43 selfloop flow, removed 7 redundant places. [2025-02-06 18:39:25,666 INFO L231 Difference]: Finished difference. Result has 160 places, 223 transitions, 2846 flow [2025-02-06 18:39:25,667 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2444, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2846, PETRI_PLACES=160, PETRI_TRANSITIONS=223} [2025-02-06 18:39:25,667 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 125 predicate places. [2025-02-06 18:39:25,667 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 223 transitions, 2846 flow [2025-02-06 18:39:25,668 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 18:39:25,668 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:25,668 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:25,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 18:39:25,668 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:25,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:25,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1565401981, now seen corresponding path program 1 times [2025-02-06 18:39:25,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:25,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890849024] [2025-02-06 18:39:25,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:25,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:25,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:25,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:25,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:25,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:26,244 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 18:39:26,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:26,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890849024] [2025-02-06 18:39:26,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890849024] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:26,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:26,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 18:39:26,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308255907] [2025-02-06 18:39:26,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:26,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:39:26,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:26,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:39:26,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:39:26,246 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:26,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 223 transitions, 2846 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 18:39:26,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:26,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:26,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:27,470 INFO L124 PetriNetUnfolderBase]: 1852/3447 cut-off events. [2025-02-06 18:39:27,470 INFO L125 PetriNetUnfolderBase]: For 28913/28915 co-relation queries the response was YES. [2025-02-06 18:39:27,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18300 conditions, 3447 events. 1852/3447 cut-off events. For 28913/28915 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 23525 event pairs, 619 based on Foata normal form. 0/3289 useless extension candidates. Maximal degree in co-relation 17830. Up to 1520 conditions per place. [2025-02-06 18:39:27,499 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 201 selfloop transitions, 131 changer transitions 13/346 dead transitions. [2025-02-06 18:39:27,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 346 transitions, 4584 flow [2025-02-06 18:39:27,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-06 18:39:27,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-02-06 18:39:27,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 249 transitions. [2025-02-06 18:39:27,501 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.31841432225063937 [2025-02-06 18:39:27,501 INFO L175 Difference]: Start difference. First operand has 160 places, 223 transitions, 2846 flow. Second operand 23 states and 249 transitions. [2025-02-06 18:39:27,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 346 transitions, 4584 flow [2025-02-06 18:39:27,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 346 transitions, 4346 flow, removed 27 selfloop flow, removed 13 redundant places. [2025-02-06 18:39:27,584 INFO L231 Difference]: Finished difference. Result has 180 places, 260 transitions, 3547 flow [2025-02-06 18:39:27,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2627, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3547, PETRI_PLACES=180, PETRI_TRANSITIONS=260} [2025-02-06 18:39:27,586 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 145 predicate places. [2025-02-06 18:39:27,586 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 260 transitions, 3547 flow [2025-02-06 18:39:27,586 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 18:39:27,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:27,586 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:27,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 18:39:27,587 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 18:39:27,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:27,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1565401980, now seen corresponding path program 1 times [2025-02-06 18:39:27,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:27,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687830997] [2025-02-06 18:39:27,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:27,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:27,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:27,618 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:27,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:27,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:28,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:28,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:28,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687830997] [2025-02-06 18:39:28,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687830997] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:28,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:28,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:28,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774289123] [2025-02-06 18:39:28,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:28,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:28,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:28,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:28,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:28,094 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:28,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 260 transitions, 3547 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 18:39:28,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:28,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:28,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:28,923 INFO L124 PetriNetUnfolderBase]: 1397/2678 cut-off events. [2025-02-06 18:39:28,923 INFO L125 PetriNetUnfolderBase]: For 35762/35764 co-relation queries the response was YES. [2025-02-06 18:39:28,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16354 conditions, 2678 events. 1397/2678 cut-off events. For 35762/35764 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 18164 event pairs, 568 based on Foata normal form. 14/2608 useless extension candidates. Maximal degree in co-relation 15888. Up to 2117 conditions per place. [2025-02-06 18:39:28,941 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 238 selfloop transitions, 64 changer transitions 27/330 dead transitions. [2025-02-06 18:39:28,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 330 transitions, 4802 flow [2025-02-06 18:39:28,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:39:28,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:39:28,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 180 transitions. [2025-02-06 18:39:28,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.31141868512110726 [2025-02-06 18:39:28,943 INFO L175 Difference]: Start difference. First operand has 180 places, 260 transitions, 3547 flow. Second operand 17 states and 180 transitions. [2025-02-06 18:39:28,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 330 transitions, 4802 flow [2025-02-06 18:39:29,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 330 transitions, 4410 flow, removed 154 selfloop flow, removed 10 redundant places. [2025-02-06 18:39:29,071 INFO L231 Difference]: Finished difference. Result has 194 places, 273 transitions, 3633 flow [2025-02-06 18:39:29,072 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3283, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3633, PETRI_PLACES=194, PETRI_TRANSITIONS=273} [2025-02-06 18:39:29,072 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 159 predicate places. [2025-02-06 18:39:29,072 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 273 transitions, 3633 flow [2025-02-06 18:39:29,073 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 18:39:29,073 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:29,073 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:29,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 18:39:29,073 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:29,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:29,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1637476980, now seen corresponding path program 2 times [2025-02-06 18:39:29,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:29,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932812036] [2025-02-06 18:39:29,074 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:39:29,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:29,087 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:29,094 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:29,094 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:29,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:29,525 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 18:39:29,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:29,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932812036] [2025-02-06 18:39:29,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932812036] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:29,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:29,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:29,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338872989] [2025-02-06 18:39:29,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:29,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:29,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:29,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:29,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:29,529 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:29,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 273 transitions, 3633 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 18:39:29,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:29,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:29,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:30,697 INFO L124 PetriNetUnfolderBase]: 1599/3061 cut-off events. [2025-02-06 18:39:30,697 INFO L125 PetriNetUnfolderBase]: For 42562/42564 co-relation queries the response was YES. [2025-02-06 18:39:30,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18409 conditions, 3061 events. 1599/3061 cut-off events. For 42562/42564 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 21235 event pairs, 470 based on Foata normal form. 32/3009 useless extension candidates. Maximal degree in co-relation 17942. Up to 1409 conditions per place. [2025-02-06 18:39:30,726 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 291 selfloop transitions, 132 changer transitions 0/424 dead transitions. [2025-02-06 18:39:30,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 424 transitions, 5932 flow [2025-02-06 18:39:30,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 18:39:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 18:39:30,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 243 transitions. [2025-02-06 18:39:30,728 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3403361344537815 [2025-02-06 18:39:30,729 INFO L175 Difference]: Start difference. First operand has 194 places, 273 transitions, 3633 flow. Second operand 21 states and 243 transitions. [2025-02-06 18:39:30,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 424 transitions, 5932 flow [2025-02-06 18:39:30,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 424 transitions, 5754 flow, removed 51 selfloop flow, removed 7 redundant places. [2025-02-06 18:39:30,917 INFO L231 Difference]: Finished difference. Result has 215 places, 327 transitions, 4816 flow [2025-02-06 18:39:30,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3513, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4816, PETRI_PLACES=215, PETRI_TRANSITIONS=327} [2025-02-06 18:39:30,919 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 180 predicate places. [2025-02-06 18:39:30,919 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 327 transitions, 4816 flow [2025-02-06 18:39:30,919 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 18:39:30,919 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:30,919 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:30,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 18:39:30,919 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:30,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:30,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1648518871, now seen corresponding path program 2 times [2025-02-06 18:39:30,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:30,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80701372] [2025-02-06 18:39:30,920 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:39:30,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:30,933 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:30,938 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:30,939 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:30,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:31,398 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 18:39:31,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:31,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80701372] [2025-02-06 18:39:31,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80701372] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:31,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:31,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 18:39:31,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061913672] [2025-02-06 18:39:31,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:31,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:39:31,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:31,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:39:31,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:39:31,399 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:31,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 327 transitions, 4816 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 18:39:31,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:31,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:31,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:32,712 INFO L124 PetriNetUnfolderBase]: 1749/3361 cut-off events. [2025-02-06 18:39:32,712 INFO L125 PetriNetUnfolderBase]: For 52570/52572 co-relation queries the response was YES. [2025-02-06 18:39:32,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21335 conditions, 3361 events. 1749/3361 cut-off events. For 52570/52572 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 23735 event pairs, 456 based on Foata normal form. 14/3291 useless extension candidates. Maximal degree in co-relation 20562. Up to 1062 conditions per place. [2025-02-06 18:39:32,742 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 275 selfloop transitions, 171 changer transitions 9/456 dead transitions. [2025-02-06 18:39:32,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 456 transitions, 7012 flow [2025-02-06 18:39:32,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-06 18:39:32,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-02-06 18:39:32,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 272 transitions. [2025-02-06 18:39:32,744 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.32 [2025-02-06 18:39:32,744 INFO L175 Difference]: Start difference. First operand has 215 places, 327 transitions, 4816 flow. Second operand 25 states and 272 transitions. [2025-02-06 18:39:32,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 456 transitions, 7012 flow [2025-02-06 18:39:33,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 456 transitions, 6697 flow, removed 153 selfloop flow, removed 3 redundant places. [2025-02-06 18:39:33,024 INFO L231 Difference]: Finished difference. Result has 243 places, 359 transitions, 5719 flow [2025-02-06 18:39:33,025 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=4637, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=5719, PETRI_PLACES=243, PETRI_TRANSITIONS=359} [2025-02-06 18:39:33,025 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 208 predicate places. [2025-02-06 18:39:33,025 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 359 transitions, 5719 flow [2025-02-06 18:39:33,026 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 18:39:33,026 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:33,026 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:33,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 18:39:33,026 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 18:39:33,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:33,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1648518870, now seen corresponding path program 3 times [2025-02-06 18:39:33,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:33,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628285309] [2025-02-06 18:39:33,027 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:33,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:33,039 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:33,044 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:33,045 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:39:33,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:33,420 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 18:39:33,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:33,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628285309] [2025-02-06 18:39:33,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628285309] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:33,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:33,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:33,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718012914] [2025-02-06 18:39:33,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:33,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:33,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:33,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:33,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:33,422 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:33,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 359 transitions, 5719 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 18:39:33,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:33,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:33,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:34,365 INFO L124 PetriNetUnfolderBase]: 1824/3537 cut-off events. [2025-02-06 18:39:34,365 INFO L125 PetriNetUnfolderBase]: For 60989/60991 co-relation queries the response was YES. [2025-02-06 18:39:34,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23125 conditions, 3537 events. 1824/3537 cut-off events. For 60989/60991 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 25637 event pairs, 656 based on Foata normal form. 18/3471 useless extension candidates. Maximal degree in co-relation 22623. Up to 2323 conditions per place. [2025-02-06 18:39:34,391 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 335 selfloop transitions, 109 changer transitions 21/466 dead transitions. [2025-02-06 18:39:34,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 466 transitions, 7636 flow [2025-02-06 18:39:34,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 18:39:34,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 18:39:34,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 234 transitions. [2025-02-06 18:39:34,392 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3277310924369748 [2025-02-06 18:39:34,392 INFO L175 Difference]: Start difference. First operand has 243 places, 359 transitions, 5719 flow. Second operand 21 states and 234 transitions. [2025-02-06 18:39:34,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 466 transitions, 7636 flow [2025-02-06 18:39:34,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 466 transitions, 7466 flow, removed 25 selfloop flow, removed 12 redundant places. [2025-02-06 18:39:34,623 INFO L231 Difference]: Finished difference. Result has 259 places, 380 transitions, 6239 flow [2025-02-06 18:39:34,623 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=5544, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=6239, PETRI_PLACES=259, PETRI_TRANSITIONS=380} [2025-02-06 18:39:34,624 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 224 predicate places. [2025-02-06 18:39:34,624 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 380 transitions, 6239 flow [2025-02-06 18:39:34,625 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 18:39:34,625 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:34,625 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:34,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 18:39:34,625 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 18:39:34,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:34,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1637476981, now seen corresponding path program 3 times [2025-02-06 18:39:34,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:34,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105345145] [2025-02-06 18:39:34,625 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:34,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:34,638 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:34,643 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:34,643 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:39:34,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:35,173 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 18:39:35,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:35,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105345145] [2025-02-06 18:39:35,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105345145] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:35,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:35,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-06 18:39:35,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964455685] [2025-02-06 18:39:35,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:35,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:39:35,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:35,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:39:35,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:39:35,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:35,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 380 transitions, 6239 flow. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:35,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:35,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:35,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:36,524 INFO L124 PetriNetUnfolderBase]: 1774/3435 cut-off events. [2025-02-06 18:39:36,524 INFO L125 PetriNetUnfolderBase]: For 63400/63402 co-relation queries the response was YES. [2025-02-06 18:39:36,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22862 conditions, 3435 events. 1774/3435 cut-off events. For 63400/63402 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 24740 event pairs, 665 based on Foata normal form. 28/3379 useless extension candidates. Maximal degree in co-relation 22698. Up to 2609 conditions per place. [2025-02-06 18:39:36,548 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 306 selfloop transitions, 92 changer transitions 48/447 dead transitions. [2025-02-06 18:39:36,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 447 transitions, 7403 flow [2025-02-06 18:39:36,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 18:39:36,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 18:39:36,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 224 transitions. [2025-02-06 18:39:36,550 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3137254901960784 [2025-02-06 18:39:36,550 INFO L175 Difference]: Start difference. First operand has 259 places, 380 transitions, 6239 flow. Second operand 21 states and 224 transitions. [2025-02-06 18:39:36,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 447 transitions, 7403 flow [2025-02-06 18:39:36,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 447 transitions, 7254 flow, removed 38 selfloop flow, removed 8 redundant places. [2025-02-06 18:39:36,780 INFO L231 Difference]: Finished difference. Result has 271 places, 363 transitions, 5958 flow [2025-02-06 18:39:36,781 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=5960, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=5958, PETRI_PLACES=271, PETRI_TRANSITIONS=363} [2025-02-06 18:39:36,781 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 236 predicate places. [2025-02-06 18:39:36,781 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 363 transitions, 5958 flow [2025-02-06 18:39:36,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:36,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:36,781 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:36,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 18:39:36,782 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 18:39:36,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:36,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1617969117, now seen corresponding path program 1 times [2025-02-06 18:39:36,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:36,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292783575] [2025-02-06 18:39:36,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:36,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:36,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:36,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:36,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:36,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:36,842 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 18:39:36,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:36,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292783575] [2025-02-06 18:39:36,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292783575] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:36,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:36,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 18:39:36,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595940845] [2025-02-06 18:39:36,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:36,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:39:36,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:36,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:39:36,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:39:36,844 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 34 [2025-02-06 18:39:36,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 363 transitions, 5958 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 18:39:36,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:36,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 34 [2025-02-06 18:39:36,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:37,192 INFO L124 PetriNetUnfolderBase]: 979/1890 cut-off events. [2025-02-06 18:39:37,192 INFO L125 PetriNetUnfolderBase]: For 35799/35799 co-relation queries the response was YES. [2025-02-06 18:39:37,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12727 conditions, 1890 events. 979/1890 cut-off events. For 35799/35799 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 12394 event pairs, 161 based on Foata normal form. 0/1850 useless extension candidates. Maximal degree in co-relation 12637. Up to 1129 conditions per place. [2025-02-06 18:39:37,208 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 302 selfloop transitions, 45 changer transitions 34/381 dead transitions. [2025-02-06 18:39:37,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 381 transitions, 7321 flow [2025-02-06 18:39:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:39:37,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:39:37,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2025-02-06 18:39:37,210 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4852941176470588 [2025-02-06 18:39:37,210 INFO L175 Difference]: Start difference. First operand has 271 places, 363 transitions, 5958 flow. Second operand 4 states and 66 transitions. [2025-02-06 18:39:37,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 381 transitions, 7321 flow [2025-02-06 18:39:37,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 381 transitions, 6737 flow, removed 54 selfloop flow, removed 30 redundant places. [2025-02-06 18:39:37,321 INFO L231 Difference]: Finished difference. Result has 232 places, 237 transitions, 3717 flow [2025-02-06 18:39:37,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=4055, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=3717, PETRI_PLACES=232, PETRI_TRANSITIONS=237} [2025-02-06 18:39:37,322 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 197 predicate places. [2025-02-06 18:39:37,322 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 237 transitions, 3717 flow [2025-02-06 18:39:37,322 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 18:39:37,322 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:37,322 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:37,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 18:39:37,322 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 18:39:37,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:37,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1799210431, now seen corresponding path program 4 times [2025-02-06 18:39:37,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:37,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589395561] [2025-02-06 18:39:37,323 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:39:37,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:37,339 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:39:37,349 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 18:39:37,352 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:39:37,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:37,889 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 18:39:37,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:37,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589395561] [2025-02-06 18:39:37,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589395561] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:37,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:37,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-06 18:39:37,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104206776] [2025-02-06 18:39:37,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:37,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:39:37,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:37,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:39:37,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:39:37,891 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:37,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 237 transitions, 3717 flow. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:37,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:37,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:37,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:38,759 INFO L124 PetriNetUnfolderBase]: 1026/1969 cut-off events. [2025-02-06 18:39:38,759 INFO L125 PetriNetUnfolderBase]: For 25920/25920 co-relation queries the response was YES. [2025-02-06 18:39:38,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12758 conditions, 1969 events. 1026/1969 cut-off events. For 25920/25920 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 12376 event pairs, 366 based on Foata normal form. 14/1935 useless extension candidates. Maximal degree in co-relation 12682. Up to 1227 conditions per place. [2025-02-06 18:39:38,772 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 222 selfloop transitions, 94 changer transitions 39/355 dead transitions. [2025-02-06 18:39:38,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 355 transitions, 5541 flow [2025-02-06 18:39:38,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-02-06 18:39:38,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2025-02-06 18:39:38,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 264 transitions. [2025-02-06 18:39:38,774 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2986425339366516 [2025-02-06 18:39:38,774 INFO L175 Difference]: Start difference. First operand has 232 places, 237 transitions, 3717 flow. Second operand 26 states and 264 transitions. [2025-02-06 18:39:38,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 355 transitions, 5541 flow [2025-02-06 18:39:38,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 355 transitions, 5066 flow, removed 16 selfloop flow, removed 17 redundant places. [2025-02-06 18:39:38,877 INFO L231 Difference]: Finished difference. Result has 229 places, 255 transitions, 4005 flow [2025-02-06 18:39:38,877 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3389, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4005, PETRI_PLACES=229, PETRI_TRANSITIONS=255} [2025-02-06 18:39:38,877 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 194 predicate places. [2025-02-06 18:39:38,878 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 255 transitions, 4005 flow [2025-02-06 18:39:38,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:39:38,878 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:38,878 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:38,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 18:39:38,878 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 18:39:38,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:38,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1788168542, now seen corresponding path program 4 times [2025-02-06 18:39:38,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:38,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546770103] [2025-02-06 18:39:38,879 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:39:38,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:38,891 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:39:38,896 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 18:39:38,897 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:39:38,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:39,328 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 18:39:39,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:39,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546770103] [2025-02-06 18:39:39,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546770103] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:39,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:39,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 18:39:39,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297991389] [2025-02-06 18:39:39,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:39,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:39:39,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:39,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:39:39,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:39:39,330 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:39,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 255 transitions, 4005 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 18:39:39,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:39,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:39,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:40,163 INFO L124 PetriNetUnfolderBase]: 976/1877 cut-off events. [2025-02-06 18:39:40,163 INFO L125 PetriNetUnfolderBase]: For 22031/22031 co-relation queries the response was YES. [2025-02-06 18:39:40,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11834 conditions, 1877 events. 976/1877 cut-off events. For 22031/22031 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 11611 event pairs, 228 based on Foata normal form. 10/1839 useless extension candidates. Maximal degree in co-relation 11761. Up to 726 conditions per place. [2025-02-06 18:39:40,175 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 179 selfloop transitions, 133 changer transitions 4/316 dead transitions. [2025-02-06 18:39:40,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 316 transitions, 4856 flow [2025-02-06 18:39:40,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-06 18:39:40,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2025-02-06 18:39:40,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 234 transitions. [2025-02-06 18:39:40,176 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2867647058823529 [2025-02-06 18:39:40,176 INFO L175 Difference]: Start difference. First operand has 229 places, 255 transitions, 4005 flow. Second operand 24 states and 234 transitions. [2025-02-06 18:39:40,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 316 transitions, 4856 flow [2025-02-06 18:39:40,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 316 transitions, 4750 flow, removed 21 selfloop flow, removed 7 redundant places. [2025-02-06 18:39:40,261 INFO L231 Difference]: Finished difference. Result has 240 places, 256 transitions, 4255 flow [2025-02-06 18:39:40,261 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3855, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=4255, PETRI_PLACES=240, PETRI_TRANSITIONS=256} [2025-02-06 18:39:40,262 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 205 predicate places. [2025-02-06 18:39:40,262 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 256 transitions, 4255 flow [2025-02-06 18:39:40,262 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 18:39:40,262 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:40,262 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:40,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-06 18:39:40,262 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 18:39:40,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:40,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1788168541, now seen corresponding path program 5 times [2025-02-06 18:39:40,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:40,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128340238] [2025-02-06 18:39:40,263 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:39:40,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:40,274 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:40,283 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:40,283 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:40,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:40,696 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 18:39:40,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:40,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128340238] [2025-02-06 18:39:40,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128340238] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:40,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:40,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 18:39:40,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424415089] [2025-02-06 18:39:40,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:40,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:39:40,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:40,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:39:40,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:39:40,698 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:40,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 256 transitions, 4255 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 18:39:40,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:40,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:40,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:41,660 INFO L124 PetriNetUnfolderBase]: 964/1855 cut-off events. [2025-02-06 18:39:41,660 INFO L125 PetriNetUnfolderBase]: For 22854/22854 co-relation queries the response was YES. [2025-02-06 18:39:41,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12144 conditions, 1855 events. 964/1855 cut-off events. For 22854/22854 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 11457 event pairs, 252 based on Foata normal form. 10/1817 useless extension candidates. Maximal degree in co-relation 12071. Up to 596 conditions per place. [2025-02-06 18:39:41,674 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 138 selfloop transitions, 137 changer transitions 31/306 dead transitions. [2025-02-06 18:39:41,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 306 transitions, 5000 flow [2025-02-06 18:39:41,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-06 18:39:41,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-02-06 18:39:41,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 226 transitions. [2025-02-06 18:39:41,675 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.289002557544757 [2025-02-06 18:39:41,675 INFO L175 Difference]: Start difference. First operand has 240 places, 256 transitions, 4255 flow. Second operand 23 states and 226 transitions. [2025-02-06 18:39:41,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 306 transitions, 5000 flow [2025-02-06 18:39:41,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 306 transitions, 4783 flow, removed 29 selfloop flow, removed 19 redundant places. [2025-02-06 18:39:41,770 INFO L231 Difference]: Finished difference. Result has 242 places, 242 transitions, 4110 flow [2025-02-06 18:39:41,770 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=4007, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=4110, PETRI_PLACES=242, PETRI_TRANSITIONS=242} [2025-02-06 18:39:41,770 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 207 predicate places. [2025-02-06 18:39:41,771 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 242 transitions, 4110 flow [2025-02-06 18:39:41,771 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 18:39:41,771 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:41,771 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:41,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-06 18:39:41,771 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:41,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:41,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2048243971, now seen corresponding path program 6 times [2025-02-06 18:39:41,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:41,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020033640] [2025-02-06 18:39:41,772 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 18:39:41,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:41,785 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:41,788 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:41,788 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 18:39:41,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:42,150 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 18:39:42,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:42,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020033640] [2025-02-06 18:39:42,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020033640] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:42,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:42,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:42,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567195329] [2025-02-06 18:39:42,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:42,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:42,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:42,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:42,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:42,151 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:42,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 242 transitions, 4110 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 18:39:42,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:42,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:42,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:42,966 INFO L124 PetriNetUnfolderBase]: 935/1806 cut-off events. [2025-02-06 18:39:42,967 INFO L125 PetriNetUnfolderBase]: For 23051/23051 co-relation queries the response was YES. [2025-02-06 18:39:42,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11848 conditions, 1806 events. 935/1806 cut-off events. For 23051/23051 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 11234 event pairs, 307 based on Foata normal form. 54/1812 useless extension candidates. Maximal degree in co-relation 11779. Up to 869 conditions per place. [2025-02-06 18:39:42,983 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 190 selfloop transitions, 89 changer transitions 22/301 dead transitions. [2025-02-06 18:39:42,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 301 transitions, 5234 flow [2025-02-06 18:39:42,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:39:42,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:39:42,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 182 transitions. [2025-02-06 18:39:42,985 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2973856209150327 [2025-02-06 18:39:42,985 INFO L175 Difference]: Start difference. First operand has 242 places, 242 transitions, 4110 flow. Second operand 18 states and 182 transitions. [2025-02-06 18:39:42,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 301 transitions, 5234 flow [2025-02-06 18:39:43,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 301 transitions, 4742 flow, removed 6 selfloop flow, removed 26 redundant places. [2025-02-06 18:39:43,074 INFO L231 Difference]: Finished difference. Result has 225 places, 233 transitions, 3762 flow [2025-02-06 18:39:43,074 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3597, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3762, PETRI_PLACES=225, PETRI_TRANSITIONS=233} [2025-02-06 18:39:43,074 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 190 predicate places. [2025-02-06 18:39:43,074 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 233 transitions, 3762 flow [2025-02-06 18:39:43,074 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 18:39:43,074 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:43,075 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:43,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 18:39:43,075 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 18:39:43,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:43,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2055925982, now seen corresponding path program 1 times [2025-02-06 18:39:43,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:43,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595374751] [2025-02-06 18:39:43,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:43,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:43,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:43,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:43,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:43,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:43,311 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 18:39:43,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:43,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595374751] [2025-02-06 18:39:43,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595374751] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:43,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:43,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:39:43,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348349836] [2025-02-06 18:39:43,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:43,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:39:43,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:43,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:39:43,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:39:43,314 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:43,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 233 transitions, 3762 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 18:39:43,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:43,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:43,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:44,086 INFO L124 PetriNetUnfolderBase]: 889/1706 cut-off events. [2025-02-06 18:39:44,086 INFO L125 PetriNetUnfolderBase]: For 19926/19926 co-relation queries the response was YES. [2025-02-06 18:39:44,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11087 conditions, 1706 events. 889/1706 cut-off events. For 19926/19926 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 10328 event pairs, 145 based on Foata normal form. 0/1682 useless extension candidates. Maximal degree in co-relation 11020. Up to 307 conditions per place. [2025-02-06 18:39:44,102 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 191 selfloop transitions, 121 changer transitions 0/312 dead transitions. [2025-02-06 18:39:44,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 312 transitions, 5079 flow [2025-02-06 18:39:44,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:39:44,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:39:44,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 199 transitions. [2025-02-06 18:39:44,104 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.32516339869281047 [2025-02-06 18:39:44,104 INFO L175 Difference]: Start difference. First operand has 225 places, 233 transitions, 3762 flow. Second operand 18 states and 199 transitions. [2025-02-06 18:39:44,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 312 transitions, 5079 flow [2025-02-06 18:39:44,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 312 transitions, 4883 flow, removed 36 selfloop flow, removed 11 redundant places. [2025-02-06 18:39:44,213 INFO L231 Difference]: Finished difference. Result has 232 places, 256 transitions, 4230 flow [2025-02-06 18:39:44,213 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3601, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4230, PETRI_PLACES=232, PETRI_TRANSITIONS=256} [2025-02-06 18:39:44,214 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 197 predicate places. [2025-02-06 18:39:44,214 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 256 transitions, 4230 flow [2025-02-06 18:39:44,214 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 18:39:44,214 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:44,214 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:44,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-06 18:39:44,215 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 18:39:44,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:44,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2055925981, now seen corresponding path program 1 times [2025-02-06 18:39:44,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:44,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227691857] [2025-02-06 18:39:44,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:39:44,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:44,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:44,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:44,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:44,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:44,655 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 18:39:44,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:44,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227691857] [2025-02-06 18:39:44,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227691857] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:44,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:44,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:44,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832737229] [2025-02-06 18:39:44,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:44,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:44,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:44,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:44,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:44,657 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:44,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 256 transitions, 4230 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 18:39:44,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:44,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:44,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:45,380 INFO L124 PetriNetUnfolderBase]: 971/1876 cut-off events. [2025-02-06 18:39:45,380 INFO L125 PetriNetUnfolderBase]: For 24327/24327 co-relation queries the response was YES. [2025-02-06 18:39:45,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12506 conditions, 1876 events. 971/1876 cut-off events. For 24327/24327 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 11603 event pairs, 324 based on Foata normal form. 24/1900 useless extension candidates. Maximal degree in co-relation 12434. Up to 750 conditions per place. [2025-02-06 18:39:45,393 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 197 selfloop transitions, 93 changer transitions 48/338 dead transitions. [2025-02-06 18:39:45,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 338 transitions, 5673 flow [2025-02-06 18:39:45,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-06 18:39:45,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-02-06 18:39:45,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 219 transitions. [2025-02-06 18:39:45,394 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.28005115089514065 [2025-02-06 18:39:45,394 INFO L175 Difference]: Start difference. First operand has 232 places, 256 transitions, 4230 flow. Second operand 23 states and 219 transitions. [2025-02-06 18:39:45,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 338 transitions, 5673 flow [2025-02-06 18:39:45,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 338 transitions, 5412 flow, removed 44 selfloop flow, removed 7 redundant places. [2025-02-06 18:39:45,476 INFO L231 Difference]: Finished difference. Result has 249 places, 237 transitions, 3890 flow [2025-02-06 18:39:45,476 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3976, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3890, PETRI_PLACES=249, PETRI_TRANSITIONS=237} [2025-02-06 18:39:45,477 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 214 predicate places. [2025-02-06 18:39:45,477 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 237 transitions, 3890 flow [2025-02-06 18:39:45,477 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 18:39:45,477 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:45,477 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:45,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-06 18:39:45,477 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:45,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:45,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1161467282, now seen corresponding path program 5 times [2025-02-06 18:39:45,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:45,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865889445] [2025-02-06 18:39:45,478 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:39:45,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:45,490 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:45,495 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:45,495 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:45,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:45,879 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 18:39:45,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:45,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865889445] [2025-02-06 18:39:45,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865889445] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:45,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:45,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:45,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907751421] [2025-02-06 18:39:45,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:45,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:45,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:45,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:45,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:45,881 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:45,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 237 transitions, 3890 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 18:39:45,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:45,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:45,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:46,601 INFO L124 PetriNetUnfolderBase]: 880/1699 cut-off events. [2025-02-06 18:39:46,601 INFO L125 PetriNetUnfolderBase]: For 22427/22427 co-relation queries the response was YES. [2025-02-06 18:39:46,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11172 conditions, 1699 events. 880/1699 cut-off events. For 22427/22427 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 10352 event pairs, 215 based on Foata normal form. 38/1737 useless extension candidates. Maximal degree in co-relation 11099. Up to 755 conditions per place. [2025-02-06 18:39:46,614 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 195 selfloop transitions, 70 changer transitions 40/305 dead transitions. [2025-02-06 18:39:46,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 305 transitions, 4850 flow [2025-02-06 18:39:46,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 18:39:46,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-06 18:39:46,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 214 transitions. [2025-02-06 18:39:46,616 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.31470588235294117 [2025-02-06 18:39:46,616 INFO L175 Difference]: Start difference. First operand has 249 places, 237 transitions, 3890 flow. Second operand 20 states and 214 transitions. [2025-02-06 18:39:46,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 305 transitions, 4850 flow [2025-02-06 18:39:46,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 305 transitions, 4506 flow, removed 27 selfloop flow, removed 31 redundant places. [2025-02-06 18:39:46,677 INFO L231 Difference]: Finished difference. Result has 227 places, 204 transitions, 3140 flow [2025-02-06 18:39:46,677 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=3516, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3140, PETRI_PLACES=227, PETRI_TRANSITIONS=204} [2025-02-06 18:39:46,677 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 192 predicate places. [2025-02-06 18:39:46,677 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 204 transitions, 3140 flow [2025-02-06 18:39:46,677 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 18:39:46,677 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:46,677 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:46,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-06 18:39:46,677 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 18:39:46,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:46,678 INFO L85 PathProgramCache]: Analyzing trace with hash -106714019, now seen corresponding path program 7 times [2025-02-06 18:39:46,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:46,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110328421] [2025-02-06 18:39:46,678 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 18:39:46,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:46,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:46,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:46,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:46,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:47,104 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 18:39:47,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:47,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110328421] [2025-02-06 18:39:47,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110328421] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:47,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:47,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 18:39:47,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974596903] [2025-02-06 18:39:47,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:47,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:39:47,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:47,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:39:47,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:39:47,105 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:47,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 204 transitions, 3140 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 18:39:47,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:47,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:47,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:47,833 INFO L124 PetriNetUnfolderBase]: 750/1449 cut-off events. [2025-02-06 18:39:47,833 INFO L125 PetriNetUnfolderBase]: For 17417/17417 co-relation queries the response was YES. [2025-02-06 18:39:47,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9451 conditions, 1449 events. 750/1449 cut-off events. For 17417/17417 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 8559 event pairs, 257 based on Foata normal form. 14/1463 useless extension candidates. Maximal degree in co-relation 9387. Up to 1047 conditions per place. [2025-02-06 18:39:47,846 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 181 selfloop transitions, 40 changer transitions 35/256 dead transitions. [2025-02-06 18:39:47,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 256 transitions, 3788 flow [2025-02-06 18:39:47,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 18:39:47,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-02-06 18:39:47,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 193 transitions. [2025-02-06 18:39:47,848 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.29876160990712075 [2025-02-06 18:39:47,848 INFO L175 Difference]: Start difference. First operand has 227 places, 204 transitions, 3140 flow. Second operand 19 states and 193 transitions. [2025-02-06 18:39:47,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 256 transitions, 3788 flow [2025-02-06 18:39:47,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 256 transitions, 3507 flow, removed 22 selfloop flow, removed 22 redundant places. [2025-02-06 18:39:47,901 INFO L231 Difference]: Finished difference. Result has 212 places, 188 transitions, 2727 flow [2025-02-06 18:39:47,902 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2803, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2727, PETRI_PLACES=212, PETRI_TRANSITIONS=188} [2025-02-06 18:39:47,902 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 177 predicate places. [2025-02-06 18:39:47,902 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 188 transitions, 2727 flow [2025-02-06 18:39:47,902 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 18:39:47,902 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:47,902 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:47,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-06 18:39:47,902 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 18:39:47,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:47,903 INFO L85 PathProgramCache]: Analyzing trace with hash -95989260, now seen corresponding path program 6 times [2025-02-06 18:39:47,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:47,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896437245] [2025-02-06 18:39:47,903 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 18:39:47,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:47,912 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:47,916 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:47,916 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-06 18:39:47,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:48,239 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 18:39:48,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:48,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896437245] [2025-02-06 18:39:48,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896437245] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:48,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:48,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:48,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955669807] [2025-02-06 18:39:48,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:48,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:48,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:48,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:48,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:48,241 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:48,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 188 transitions, 2727 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 18:39:48,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:48,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:48,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:48,648 INFO L124 PetriNetUnfolderBase]: 690/1333 cut-off events. [2025-02-06 18:39:48,648 INFO L125 PetriNetUnfolderBase]: For 13565/13565 co-relation queries the response was YES. [2025-02-06 18:39:48,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8506 conditions, 1333 events. 690/1333 cut-off events. For 13565/13565 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 7672 event pairs, 245 based on Foata normal form. 10/1343 useless extension candidates. Maximal degree in co-relation 8448. Up to 1047 conditions per place. [2025-02-06 18:39:48,656 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 178 selfloop transitions, 37 changer transitions 0/215 dead transitions. [2025-02-06 18:39:48,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 215 transitions, 3188 flow [2025-02-06 18:39:48,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 18:39:48,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 18:39:48,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 132 transitions. [2025-02-06 18:39:48,657 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2986425339366516 [2025-02-06 18:39:48,657 INFO L175 Difference]: Start difference. First operand has 212 places, 188 transitions, 2727 flow. Second operand 13 states and 132 transitions. [2025-02-06 18:39:48,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 215 transitions, 3188 flow [2025-02-06 18:39:48,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 215 transitions, 3094 flow, removed 22 selfloop flow, removed 12 redundant places. [2025-02-06 18:39:48,691 INFO L231 Difference]: Finished difference. Result has 198 places, 186 transitions, 2662 flow [2025-02-06 18:39:48,691 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2575, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2662, PETRI_PLACES=198, PETRI_TRANSITIONS=186} [2025-02-06 18:39:48,692 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 163 predicate places. [2025-02-06 18:39:48,692 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 186 transitions, 2662 flow [2025-02-06 18:39:48,692 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 18:39:48,692 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:48,692 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:48,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-06 18:39:48,692 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:48,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:48,693 INFO L85 PathProgramCache]: Analyzing trace with hash -95989259, now seen corresponding path program 8 times [2025-02-06 18:39:48,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:48,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742091004] [2025-02-06 18:39:48,693 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:39:48,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:48,702 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:48,705 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:48,705 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:48,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:49,048 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 18:39:49,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:49,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742091004] [2025-02-06 18:39:49,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742091004] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:49,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:49,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:49,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133970250] [2025-02-06 18:39:49,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:49,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:49,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:49,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:49,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:49,051 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:49,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 186 transitions, 2662 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 18:39:49,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:49,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:49,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:49,553 INFO L124 PetriNetUnfolderBase]: 678/1311 cut-off events. [2025-02-06 18:39:49,553 INFO L125 PetriNetUnfolderBase]: For 12176/12176 co-relation queries the response was YES. [2025-02-06 18:39:49,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8318 conditions, 1311 events. 678/1311 cut-off events. For 12176/12176 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7474 event pairs, 147 based on Foata normal form. 10/1321 useless extension candidates. Maximal degree in co-relation 8261. Up to 424 conditions per place. [2025-02-06 18:39:49,561 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 103 selfloop transitions, 75 changer transitions 44/222 dead transitions. [2025-02-06 18:39:49,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 222 transitions, 3204 flow [2025-02-06 18:39:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 18:39:49,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-06 18:39:49,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 188 transitions. [2025-02-06 18:39:49,562 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.27647058823529413 [2025-02-06 18:39:49,562 INFO L175 Difference]: Start difference. First operand has 198 places, 186 transitions, 2662 flow. Second operand 20 states and 188 transitions. [2025-02-06 18:39:49,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 222 transitions, 3204 flow [2025-02-06 18:39:49,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 222 transitions, 3130 flow, removed 3 selfloop flow, removed 9 redundant places. [2025-02-06 18:39:49,604 INFO L231 Difference]: Finished difference. Result has 207 places, 164 transitions, 2505 flow [2025-02-06 18:39:49,604 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2556, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2505, PETRI_PLACES=207, PETRI_TRANSITIONS=164} [2025-02-06 18:39:49,604 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 172 predicate places. [2025-02-06 18:39:49,604 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 164 transitions, 2505 flow [2025-02-06 18:39:49,604 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 18:39:49,604 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:49,604 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:49,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-06 18:39:49,605 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:49,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:49,605 INFO L85 PathProgramCache]: Analyzing trace with hash 129555234, now seen corresponding path program 2 times [2025-02-06 18:39:49,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:49,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707512356] [2025-02-06 18:39:49,605 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:39:49,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:49,616 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:49,619 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:49,619 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:49,619 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:49,810 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 18:39:49,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:49,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707512356] [2025-02-06 18:39:49,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707512356] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:49,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:49,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:39:49,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908146604] [2025-02-06 18:39:49,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:49,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:39:49,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:49,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:39:49,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:39:49,811 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:49,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 164 transitions, 2505 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 18:39:49,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:49,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:49,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:50,342 INFO L124 PetriNetUnfolderBase]: 787/1526 cut-off events. [2025-02-06 18:39:50,342 INFO L125 PetriNetUnfolderBase]: For 15649/15649 co-relation queries the response was YES. [2025-02-06 18:39:50,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9717 conditions, 1526 events. 787/1526 cut-off events. For 15649/15649 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 9196 event pairs, 162 based on Foata normal form. 16/1542 useless extension candidates. Maximal degree in co-relation 9660. Up to 278 conditions per place. [2025-02-06 18:39:50,354 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 152 selfloop transitions, 102 changer transitions 0/254 dead transitions. [2025-02-06 18:39:50,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 254 transitions, 3812 flow [2025-02-06 18:39:50,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 18:39:50,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 18:39:50,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 211 transitions. [2025-02-06 18:39:50,356 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.29551820728291317 [2025-02-06 18:39:50,356 INFO L175 Difference]: Start difference. First operand has 207 places, 164 transitions, 2505 flow. Second operand 21 states and 211 transitions. [2025-02-06 18:39:50,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 254 transitions, 3812 flow [2025-02-06 18:39:50,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 254 transitions, 3574 flow, removed 9 selfloop flow, removed 19 redundant places. [2025-02-06 18:39:50,397 INFO L231 Difference]: Finished difference. Result has 186 places, 191 transitions, 2872 flow [2025-02-06 18:39:50,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2292, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2872, PETRI_PLACES=186, PETRI_TRANSITIONS=191} [2025-02-06 18:39:50,398 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 151 predicate places. [2025-02-06 18:39:50,398 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 191 transitions, 2872 flow [2025-02-06 18:39:50,398 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 18:39:50,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:50,398 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:50,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-06 18:39:50,398 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:50,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:50,399 INFO L85 PathProgramCache]: Analyzing trace with hash 127681284, now seen corresponding path program 3 times [2025-02-06 18:39:50,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:50,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103169855] [2025-02-06 18:39:50,399 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:50,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:50,409 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:50,412 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:50,412 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:39:50,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:50,732 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 18:39:50,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:50,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103169855] [2025-02-06 18:39:50,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103169855] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:50,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:50,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:50,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251431524] [2025-02-06 18:39:50,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:50,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:50,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:50,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:50,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:50,734 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:50,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 191 transitions, 2872 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 18:39:50,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:50,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:50,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:51,203 INFO L124 PetriNetUnfolderBase]: 777/1508 cut-off events. [2025-02-06 18:39:51,203 INFO L125 PetriNetUnfolderBase]: For 14834/14834 co-relation queries the response was YES. [2025-02-06 18:39:51,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9757 conditions, 1508 events. 777/1508 cut-off events. For 14834/14834 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 9034 event pairs, 261 based on Foata normal form. 8/1516 useless extension candidates. Maximal degree in co-relation 9700. Up to 1056 conditions per place. [2025-02-06 18:39:51,214 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 174 selfloop transitions, 65 changer transitions 4/243 dead transitions. [2025-02-06 18:39:51,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 243 transitions, 3864 flow [2025-02-06 18:39:51,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-06 18:39:51,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-06 18:39:51,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 150 transitions. [2025-02-06 18:39:51,215 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2757352941176471 [2025-02-06 18:39:51,215 INFO L175 Difference]: Start difference. First operand has 186 places, 191 transitions, 2872 flow. Second operand 16 states and 150 transitions. [2025-02-06 18:39:51,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 243 transitions, 3864 flow [2025-02-06 18:39:51,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 243 transitions, 3626 flow, removed 70 selfloop flow, removed 11 redundant places. [2025-02-06 18:39:51,252 INFO L231 Difference]: Finished difference. Result has 193 places, 203 transitions, 3071 flow [2025-02-06 18:39:51,252 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2678, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3071, PETRI_PLACES=193, PETRI_TRANSITIONS=203} [2025-02-06 18:39:51,253 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 158 predicate places. [2025-02-06 18:39:51,253 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 203 transitions, 3071 flow [2025-02-06 18:39:51,253 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 18:39:51,253 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:51,253 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:51,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-06 18:39:51,253 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:51,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:51,254 INFO L85 PathProgramCache]: Analyzing trace with hash 127681285, now seen corresponding path program 2 times [2025-02-06 18:39:51,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:51,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89604703] [2025-02-06 18:39:51,254 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:39:51,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:51,263 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:51,267 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:51,267 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:39:51,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:51,546 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 18:39:51,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:51,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89604703] [2025-02-06 18:39:51,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89604703] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:51,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:51,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:51,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047615192] [2025-02-06 18:39:51,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:51,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:51,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:51,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:51,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:51,547 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:51,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 203 transitions, 3071 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 18:39:51,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:51,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:51,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:52,080 INFO L124 PetriNetUnfolderBase]: 747/1454 cut-off events. [2025-02-06 18:39:52,080 INFO L125 PetriNetUnfolderBase]: For 14044/14044 co-relation queries the response was YES. [2025-02-06 18:39:52,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9257 conditions, 1454 events. 747/1454 cut-off events. For 14044/14044 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 8643 event pairs, 194 based on Foata normal form. 24/1478 useless extension candidates. Maximal degree in co-relation 9203. Up to 752 conditions per place. [2025-02-06 18:39:52,086 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 123 selfloop transitions, 79 changer transitions 48/250 dead transitions. [2025-02-06 18:39:52,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 250 transitions, 3832 flow [2025-02-06 18:39:52,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 18:39:52,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-06 18:39:52,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 192 transitions. [2025-02-06 18:39:52,087 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.25668449197860965 [2025-02-06 18:39:52,087 INFO L175 Difference]: Start difference. First operand has 193 places, 203 transitions, 3071 flow. Second operand 22 states and 192 transitions. [2025-02-06 18:39:52,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 250 transitions, 3832 flow [2025-02-06 18:39:52,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 250 transitions, 3770 flow, removed 11 selfloop flow, removed 5 redundant places. [2025-02-06 18:39:52,120 INFO L231 Difference]: Finished difference. Result has 208 places, 173 transitions, 2665 flow [2025-02-06 18:39:52,121 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2902, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2665, PETRI_PLACES=208, PETRI_TRANSITIONS=173} [2025-02-06 18:39:52,121 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 173 predicate places. [2025-02-06 18:39:52,121 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 173 transitions, 2665 flow [2025-02-06 18:39:52,121 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 18:39:52,121 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:52,122 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:52,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-06 18:39:52,122 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:52,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:52,122 INFO L85 PathProgramCache]: Analyzing trace with hash 273445765, now seen corresponding path program 3 times [2025-02-06 18:39:52,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:52,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900075271] [2025-02-06 18:39:52,123 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:52,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:52,134 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:52,138 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:52,138 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:39:52,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:52,412 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 18:39:52,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:52,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900075271] [2025-02-06 18:39:52,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900075271] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:52,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:52,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:52,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315721341] [2025-02-06 18:39:52,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:52,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:52,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:52,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:52,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:52,413 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:52,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 173 transitions, 2665 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 18:39:52,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:52,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:52,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:53,008 INFO L124 PetriNetUnfolderBase]: 634/1243 cut-off events. [2025-02-06 18:39:53,008 INFO L125 PetriNetUnfolderBase]: For 12797/12797 co-relation queries the response was YES. [2025-02-06 18:39:53,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8162 conditions, 1243 events. 634/1243 cut-off events. For 12797/12797 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 7109 event pairs, 209 based on Foata normal form. 8/1251 useless extension candidates. Maximal degree in co-relation 8107. Up to 770 conditions per place. [2025-02-06 18:39:53,014 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 104 selfloop transitions, 79 changer transitions 31/214 dead transitions. [2025-02-06 18:39:53,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 214 transitions, 3301 flow [2025-02-06 18:39:53,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-06 18:39:53,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-02-06 18:39:53,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 213 transitions. [2025-02-06 18:39:53,015 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.25058823529411767 [2025-02-06 18:39:53,015 INFO L175 Difference]: Start difference. First operand has 208 places, 173 transitions, 2665 flow. Second operand 25 states and 213 transitions. [2025-02-06 18:39:53,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 214 transitions, 3301 flow [2025-02-06 18:39:53,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 214 transitions, 3061 flow, removed 33 selfloop flow, removed 22 redundant places. [2025-02-06 18:39:53,043 INFO L231 Difference]: Finished difference. Result has 204 places, 162 transitions, 2433 flow [2025-02-06 18:39:53,043 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2401, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=2433, PETRI_PLACES=204, PETRI_TRANSITIONS=162} [2025-02-06 18:39:53,043 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 169 predicate places. [2025-02-06 18:39:53,043 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 162 transitions, 2433 flow [2025-02-06 18:39:53,043 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 18:39:53,043 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:53,043 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:53,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-02-06 18:39:53,044 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:53,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:53,044 INFO L85 PathProgramCache]: Analyzing trace with hash 273660805, now seen corresponding path program 9 times [2025-02-06 18:39:53,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:53,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991023358] [2025-02-06 18:39:53,044 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:39:53,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:53,053 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:53,056 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:53,056 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 18:39:53,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:53,349 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 18:39:53,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:53,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991023358] [2025-02-06 18:39:53,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991023358] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:53,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:53,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 18:39:53,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980773097] [2025-02-06 18:39:53,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:53,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 18:39:53,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:53,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 18:39:53,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-02-06 18:39:53,351 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:53,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 162 transitions, 2433 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 18:39:53,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:53,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:53,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:53,837 INFO L124 PetriNetUnfolderBase]: 630/1241 cut-off events. [2025-02-06 18:39:53,837 INFO L125 PetriNetUnfolderBase]: For 11645/11645 co-relation queries the response was YES. [2025-02-06 18:39:53,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7925 conditions, 1241 events. 630/1241 cut-off events. For 11645/11645 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 7221 event pairs, 159 based on Foata normal form. 40/1281 useless extension candidates. Maximal degree in co-relation 7876. Up to 491 conditions per place. [2025-02-06 18:39:53,844 INFO L140 encePairwiseOnDemand]: 20/34 looper letters, 164 selfloop transitions, 72 changer transitions 2/238 dead transitions. [2025-02-06 18:39:53,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 238 transitions, 3696 flow [2025-02-06 18:39:53,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 18:39:53,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-02-06 18:39:53,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 185 transitions. [2025-02-06 18:39:53,845 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.28637770897832815 [2025-02-06 18:39:53,845 INFO L175 Difference]: Start difference. First operand has 204 places, 162 transitions, 2433 flow. Second operand 19 states and 185 transitions. [2025-02-06 18:39:53,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 238 transitions, 3696 flow [2025-02-06 18:39:53,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 238 transitions, 3438 flow, removed 21 selfloop flow, removed 22 redundant places. [2025-02-06 18:39:53,871 INFO L231 Difference]: Finished difference. Result has 196 places, 175 transitions, 2705 flow [2025-02-06 18:39:53,872 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2193, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2705, PETRI_PLACES=196, PETRI_TRANSITIONS=175} [2025-02-06 18:39:53,872 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 161 predicate places. [2025-02-06 18:39:53,872 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 175 transitions, 2705 flow [2025-02-06 18:39:53,872 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 18:39:53,872 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:53,872 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:53,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-02-06 18:39:53,872 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:53,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:53,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1298905988, now seen corresponding path program 4 times [2025-02-06 18:39:53,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:53,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75039115] [2025-02-06 18:39:53,873 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:39:53,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:53,882 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:39:53,885 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 18:39:53,885 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:39:53,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:54,046 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 18:39:54,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:54,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75039115] [2025-02-06 18:39:54,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75039115] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:54,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:54,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:39:54,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840412129] [2025-02-06 18:39:54,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:54,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 18:39:54,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:54,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 18:39:54,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:39:54,048 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:54,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 175 transitions, 2705 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 18:39:54,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:54,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:54,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:54,418 INFO L124 PetriNetUnfolderBase]: 600/1187 cut-off events. [2025-02-06 18:39:54,418 INFO L125 PetriNetUnfolderBase]: For 9990/9990 co-relation queries the response was YES. [2025-02-06 18:39:54,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7625 conditions, 1187 events. 600/1187 cut-off events. For 9990/9990 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 6771 event pairs, 127 based on Foata normal form. 24/1211 useless extension candidates. Maximal degree in co-relation 7578. Up to 298 conditions per place. [2025-02-06 18:39:54,424 INFO L140 encePairwiseOnDemand]: 25/34 looper letters, 99 selfloop transitions, 89 changer transitions 15/203 dead transitions. [2025-02-06 18:39:54,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 203 transitions, 3249 flow [2025-02-06 18:39:54,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 18:39:54,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-06 18:39:54,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 148 transitions. [2025-02-06 18:39:54,425 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2901960784313726 [2025-02-06 18:39:54,425 INFO L175 Difference]: Start difference. First operand has 196 places, 175 transitions, 2705 flow. Second operand 15 states and 148 transitions. [2025-02-06 18:39:54,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 203 transitions, 3249 flow [2025-02-06 18:39:54,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 203 transitions, 3064 flow, removed 16 selfloop flow, removed 18 redundant places. [2025-02-06 18:39:54,445 INFO L231 Difference]: Finished difference. Result has 191 places, 162 transitions, 2448 flow [2025-02-06 18:39:54,445 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2485, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2448, PETRI_PLACES=191, PETRI_TRANSITIONS=162} [2025-02-06 18:39:54,445 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 156 predicate places. [2025-02-06 18:39:54,446 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 162 transitions, 2448 flow [2025-02-06 18:39:54,446 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 18:39:54,446 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:54,446 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:54,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-02-06 18:39:54,446 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:54,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:54,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1131940688, now seen corresponding path program 7 times [2025-02-06 18:39:54,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:54,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28485903] [2025-02-06 18:39:54,447 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 18:39:54,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:54,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:39:54,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:54,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:39:54,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:54,700 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 18:39:54,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:54,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28485903] [2025-02-06 18:39:54,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28485903] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:54,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:54,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:54,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178089007] [2025-02-06 18:39:54,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:54,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:54,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:54,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:54,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:54,702 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:54,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 162 transitions, 2448 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 18:39:54,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:54,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:54,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:55,125 INFO L124 PetriNetUnfolderBase]: 618/1253 cut-off events. [2025-02-06 18:39:55,125 INFO L125 PetriNetUnfolderBase]: For 9553/9553 co-relation queries the response was YES. [2025-02-06 18:39:55,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7486 conditions, 1253 events. 618/1253 cut-off events. For 9553/9553 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 7519 event pairs, 111 based on Foata normal form. 76/1329 useless extension candidates. Maximal degree in co-relation 7443. Up to 403 conditions per place. [2025-02-06 18:39:55,130 INFO L140 encePairwiseOnDemand]: 21/34 looper letters, 142 selfloop transitions, 25 changer transitions 71/238 dead transitions. [2025-02-06 18:39:55,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 238 transitions, 3540 flow [2025-02-06 18:39:55,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:39:55,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:39:55,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 170 transitions. [2025-02-06 18:39:55,131 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.29411764705882354 [2025-02-06 18:39:55,131 INFO L175 Difference]: Start difference. First operand has 191 places, 162 transitions, 2448 flow. Second operand 17 states and 170 transitions. [2025-02-06 18:39:55,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 238 transitions, 3540 flow [2025-02-06 18:39:55,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 238 transitions, 3249 flow, removed 34 selfloop flow, removed 19 redundant places. [2025-02-06 18:39:55,153 INFO L231 Difference]: Finished difference. Result has 183 places, 110 transitions, 1596 flow [2025-02-06 18:39:55,153 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=2136, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1596, PETRI_PLACES=183, PETRI_TRANSITIONS=110} [2025-02-06 18:39:55,153 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 148 predicate places. [2025-02-06 18:39:55,153 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 110 transitions, 1596 flow [2025-02-06 18:39:55,154 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 18:39:55,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:55,154 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:55,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-02-06 18:39:55,154 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:55,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:55,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1298905989, now seen corresponding path program 4 times [2025-02-06 18:39:55,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:55,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581611727] [2025-02-06 18:39:55,154 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:39:55,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:55,163 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:39:55,165 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 18:39:55,165 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:39:55,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:55,447 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 18:39:55,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:55,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581611727] [2025-02-06 18:39:55,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581611727] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:39:55,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:39:55,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 18:39:55,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178370267] [2025-02-06 18:39:55,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:39:55,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:39:55,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:55,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:39:55,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:39:55,448 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:55,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 110 transitions, 1596 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 18:39:55,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:55,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:55,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:55,973 INFO L124 PetriNetUnfolderBase]: 458/925 cut-off events. [2025-02-06 18:39:55,974 INFO L125 PetriNetUnfolderBase]: For 6416/6416 co-relation queries the response was YES. [2025-02-06 18:39:55,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5574 conditions, 925 events. 458/925 cut-off events. For 6416/6416 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5062 event pairs, 150 based on Foata normal form. 16/941 useless extension candidates. Maximal degree in co-relation 5536. Up to 618 conditions per place. [2025-02-06 18:39:55,978 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 55 selfloop transitions, 48 changer transitions 33/136 dead transitions. [2025-02-06 18:39:55,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 136 transitions, 2006 flow [2025-02-06 18:39:55,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 18:39:55,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-06 18:39:55,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 162 transitions. [2025-02-06 18:39:55,978 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.226890756302521 [2025-02-06 18:39:55,979 INFO L175 Difference]: Start difference. First operand has 183 places, 110 transitions, 1596 flow. Second operand 21 states and 162 transitions. [2025-02-06 18:39:55,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 136 transitions, 2006 flow [2025-02-06 18:39:55,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 136 transitions, 1697 flow, removed 11 selfloop flow, removed 27 redundant places. [2025-02-06 18:39:55,991 INFO L231 Difference]: Finished difference. Result has 148 places, 93 transitions, 1179 flow [2025-02-06 18:39:55,991 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1269, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1179, PETRI_PLACES=148, PETRI_TRANSITIONS=93} [2025-02-06 18:39:55,991 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 113 predicate places. [2025-02-06 18:39:55,991 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 93 transitions, 1179 flow [2025-02-06 18:39:55,991 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 18:39:55,991 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:55,991 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:55,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-02-06 18:39:55,992 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:55,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:55,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1306270869, now seen corresponding path program 10 times [2025-02-06 18:39:55,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:55,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066598653] [2025-02-06 18:39:55,992 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:39:55,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:56,000 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:39:56,003 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 18:39:56,003 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:39:56,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:56,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:56,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066598653] [2025-02-06 18:39:56,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066598653] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:39:56,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432369291] [2025-02-06 18:39:56,292 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 18:39:56,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:39:56,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:39:56,294 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 18:39:56,295 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 18:39:56,418 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:39:56,438 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 18:39:56,438 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 18:39:56,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:56,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 52 conjuncts are in the unsatisfiable core [2025-02-06 18:39:56,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:39:56,504 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 22 treesize of output 1 [2025-02-06 18:39:56,645 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 11 [2025-02-06 18:39:56,687 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 15 treesize of output 7 [2025-02-06 18:39:56,732 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 18:39:56,762 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 15 treesize of output 7 [2025-02-06 18:39:56,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:56,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:39:56,819 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 18:39:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:57,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432369291] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:39:57,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:39:57,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 26 [2025-02-06 18:39:57,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156023149] [2025-02-06 18:39:57,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:39:57,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-02-06 18:39:57,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:57,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-02-06 18:39:57,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2025-02-06 18:39:57,031 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:57,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 93 transitions, 1179 flow. Second operand has 27 states, 27 states have (on average 5.444444444444445) internal successors, (147), 27 states have internal predecessors, (147), 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 18:39:57,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:57,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:57,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:39:57,798 INFO L124 PetriNetUnfolderBase]: 412/847 cut-off events. [2025-02-06 18:39:57,798 INFO L125 PetriNetUnfolderBase]: For 3349/3349 co-relation queries the response was YES. [2025-02-06 18:39:57,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4654 conditions, 847 events. 412/847 cut-off events. For 3349/3349 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4639 event pairs, 41 based on Foata normal form. 72/919 useless extension candidates. Maximal degree in co-relation 4626. Up to 200 conditions per place. [2025-02-06 18:39:57,802 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 67 selfloop transitions, 56 changer transitions 20/143 dead transitions. [2025-02-06 18:39:57,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 143 transitions, 1874 flow [2025-02-06 18:39:57,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 18:39:57,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-06 18:39:57,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 147 transitions. [2025-02-06 18:39:57,803 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.25432525951557095 [2025-02-06 18:39:57,803 INFO L175 Difference]: Start difference. First operand has 148 places, 93 transitions, 1179 flow. Second operand 17 states and 147 transitions. [2025-02-06 18:39:57,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 143 transitions, 1874 flow [2025-02-06 18:39:57,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 143 transitions, 1672 flow, removed 8 selfloop flow, removed 18 redundant places. [2025-02-06 18:39:57,811 INFO L231 Difference]: Finished difference. Result has 133 places, 92 transitions, 1180 flow [2025-02-06 18:39:57,811 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=984, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1180, PETRI_PLACES=133, PETRI_TRANSITIONS=92} [2025-02-06 18:39:57,811 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 98 predicate places. [2025-02-06 18:39:57,811 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 92 transitions, 1180 flow [2025-02-06 18:39:57,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.444444444444445) internal successors, (147), 27 states have internal predecessors, (147), 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 18:39:57,812 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:39:57,812 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:39:57,822 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 18:39:58,012 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,SelfDestructingSolverStorable33 [2025-02-06 18:39:58,013 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:39:58,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:39:58,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1555938669, now seen corresponding path program 11 times [2025-02-06 18:39:58,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:39:58,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181360133] [2025-02-06 18:39:58,013 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:39:58,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:39:58,026 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:39:58,031 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:58,032 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:39:58,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:58,520 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 18:39:58,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:39:58,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181360133] [2025-02-06 18:39:58,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181360133] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:39:58,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269939928] [2025-02-06 18:39:58,521 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 18:39:58,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:39:58,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:39:58,523 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 18:39:58,525 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 18:39:58,657 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:39:58,682 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:39:58,683 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:39:58,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:39:58,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 54 conjuncts are in the unsatisfiable core [2025-02-06 18:39:58,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:39:58,702 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 22 treesize of output 1 [2025-02-06 18:39:58,837 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 11 [2025-02-06 18:39:58,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2025-02-06 18:39:59,017 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 19 treesize of output 18 [2025-02-06 18:39:59,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 18:39:59,058 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 22 treesize of output 10 [2025-02-06 18:39:59,099 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:39:59,100 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:39:59,541 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 18:39:59,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269939928] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:39:59,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:39:59,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2025-02-06 18:39:59,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040283297] [2025-02-06 18:39:59,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:39:59,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-02-06 18:39:59,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:39:59,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-02-06 18:39:59,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=717, Unknown=0, NotChecked=0, Total=812 [2025-02-06 18:39:59,542 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:39:59,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 92 transitions, 1180 flow. Second operand has 29 states, 29 states have (on average 5.344827586206897) internal successors, (155), 29 states have internal predecessors, (155), 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 18:39:59,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:39:59,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:39:59,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:40:02,174 INFO L124 PetriNetUnfolderBase]: 326/675 cut-off events. [2025-02-06 18:40:02,174 INFO L125 PetriNetUnfolderBase]: For 2101/2101 co-relation queries the response was YES. [2025-02-06 18:40:02,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3761 conditions, 675 events. 326/675 cut-off events. For 2101/2101 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3492 event pairs, 4 based on Foata normal form. 36/711 useless extension candidates. Maximal degree in co-relation 3733. Up to 108 conditions per place. [2025-02-06 18:40:02,177 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 86 selfloop transitions, 79 changer transitions 0/165 dead transitions. [2025-02-06 18:40:02,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 165 transitions, 1810 flow [2025-02-06 18:40:02,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-02-06 18:40:02,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2025-02-06 18:40:02,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 267 transitions. [2025-02-06 18:40:02,178 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2309688581314879 [2025-02-06 18:40:02,178 INFO L175 Difference]: Start difference. First operand has 133 places, 92 transitions, 1180 flow. Second operand 34 states and 267 transitions. [2025-02-06 18:40:02,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 165 transitions, 1810 flow [2025-02-06 18:40:02,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 165 transitions, 1653 flow, removed 36 selfloop flow, removed 17 redundant places. [2025-02-06 18:40:02,186 INFO L231 Difference]: Finished difference. Result has 135 places, 99 transitions, 1282 flow [2025-02-06 18:40:02,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=987, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=1282, PETRI_PLACES=135, PETRI_TRANSITIONS=99} [2025-02-06 18:40:02,187 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 100 predicate places. [2025-02-06 18:40:02,187 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 99 transitions, 1282 flow [2025-02-06 18:40:02,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.344827586206897) internal successors, (155), 29 states have internal predecessors, (155), 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 18:40:02,187 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:40:02,187 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:40:02,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 18:40:02,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:40:02,388 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-02-06 18:40:02,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:40:02,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1566663428, now seen corresponding path program 8 times [2025-02-06 18:40:02,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:40:02,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485328907] [2025-02-06 18:40:02,388 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:40:02,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:40:02,401 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:40:02,405 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:40:02,406 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:40:02,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:40:02,772 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:40:02,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:40:02,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485328907] [2025-02-06 18:40:02,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485328907] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:40:02,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47336173] [2025-02-06 18:40:02,772 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:40:02,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:40:02,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:40:02,776 INFO L229 MonitoredProcess]: Starting monitored process 4 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 18:40:02,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 18:40:02,926 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 14 statements into 2 equivalence classes. [2025-02-06 18:40:02,956 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:40:02,956 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:40:02,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:40:02,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 54 conjuncts are in the unsatisfiable core [2025-02-06 18:40:02,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:40:02,972 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 22 treesize of output 1 [2025-02-06 18:40:03,054 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 11 [2025-02-06 18:40:03,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 13 [2025-02-06 18:40:03,155 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 19 treesize of output 18 [2025-02-06 18:40:03,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 18:40:03,209 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 22 treesize of output 10 [2025-02-06 18:40:03,224 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:40:03,224 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:40:03,515 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:40:03,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47336173] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:40:03,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:40:03,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 26 [2025-02-06 18:40:03,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628702636] [2025-02-06 18:40:03,516 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:40:03,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-02-06 18:40:03,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:40:03,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-02-06 18:40:03,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2025-02-06 18:40:03,517 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 34 [2025-02-06 18:40:03,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 99 transitions, 1282 flow. Second operand has 27 states, 27 states have (on average 5.444444444444445) internal successors, (147), 27 states have internal predecessors, (147), 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 18:40:03,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:40:03,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 34 [2025-02-06 18:40:03,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:40:04,802 INFO L124 PetriNetUnfolderBase]: 242/519 cut-off events. [2025-02-06 18:40:04,803 INFO L125 PetriNetUnfolderBase]: For 1117/1117 co-relation queries the response was YES. [2025-02-06 18:40:04,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2488 conditions, 519 events. 242/519 cut-off events. For 1117/1117 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2605 event pairs, 4 based on Foata normal form. 72/591 useless extension candidates. Maximal degree in co-relation 2465. Up to 100 conditions per place. [2025-02-06 18:40:04,804 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 0 selfloop transitions, 0 changer transitions 152/152 dead transitions. [2025-02-06 18:40:04,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 152 transitions, 1575 flow [2025-02-06 18:40:04,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-02-06 18:40:04,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2025-02-06 18:40:04,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 274 transitions. [2025-02-06 18:40:04,805 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2238562091503268 [2025-02-06 18:40:04,805 INFO L175 Difference]: Start difference. First operand has 135 places, 99 transitions, 1282 flow. Second operand 36 states and 274 transitions. [2025-02-06 18:40:04,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 152 transitions, 1575 flow [2025-02-06 18:40:04,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 152 transitions, 1332 flow, removed 12 selfloop flow, removed 32 redundant places. [2025-02-06 18:40:04,809 INFO L231 Difference]: Finished difference. Result has 124 places, 0 transitions, 0 flow [2025-02-06 18:40:04,809 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=0, PETRI_PLACES=124, PETRI_TRANSITIONS=0} [2025-02-06 18:40:04,810 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 89 predicate places. [2025-02-06 18:40:04,810 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 0 transitions, 0 flow [2025-02-06 18:40:04,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.444444444444445) internal successors, (147), 27 states have internal predecessors, (147), 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 18:40:04,813 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2025-02-06 18:40:04,813 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2025-02-06 18:40:04,813 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2025-02-06 18:40:04,813 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2025-02-06 18:40:04,813 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2025-02-06 18:40:04,813 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2025-02-06 18:40:04,813 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2025-02-06 18:40:04,813 INFO L782 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2025-02-06 18:40:04,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 18:40:05,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:40:05,014 INFO L422 BasicCegarLoop]: Path program histogram: [11, 8, 4, 4, 3, 3, 1, 1, 1] [2025-02-06 18:40:05,018 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 18:40:05,018 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 18:40:05,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 06:40:05 BasicIcfg [2025-02-06 18:40:05,022 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 18:40:05,023 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 18:40:05,023 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 18:40:05,023 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 18:40:05,024 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:39:13" (3/4) ... [2025-02-06 18:40:05,025 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 18:40:05,027 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure my_callback [2025-02-06 18:40:05,031 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 103 nodes and edges [2025-02-06 18:40:05,032 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2025-02-06 18:40:05,032 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-06 18:40:05,032 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 18:40:05,097 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 18:40:05,097 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 18:40:05,097 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 18:40:05,098 INFO L158 Benchmark]: Toolchain (without parser) took 52984.65ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 44.3MB in the end (delta: 76.3MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2025-02-06 18:40:05,098 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:40:05,098 INFO L158 Benchmark]: CACSL2BoogieTranslator took 645.13ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 89.6MB in the end (delta: 31.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 18:40:05,098 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.60ms. Allocated memory is still 167.8MB. Free memory was 89.6MB in the beginning and 87.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:40:05,098 INFO L158 Benchmark]: Boogie Preprocessor took 51.95ms. Allocated memory is still 167.8MB. Free memory was 87.6MB in the beginning and 84.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:40:05,098 INFO L158 Benchmark]: IcfgBuilder took 661.00ms. Allocated memory is still 167.8MB. Free memory was 84.6MB in the beginning and 42.5MB in the end (delta: 42.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-06 18:40:05,098 INFO L158 Benchmark]: TraceAbstraction took 51485.21ms. Allocated memory is still 167.8MB. Free memory was 42.4MB in the beginning and 52.1MB in the end (delta: -9.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 18:40:05,099 INFO L158 Benchmark]: Witness Printer took 74.05ms. Allocated memory is still 167.8MB. Free memory was 51.5MB in the beginning and 44.3MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 18:40:05,100 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 645.13ms. Allocated memory is still 167.8MB. Free memory was 120.6MB in the beginning and 89.6MB in the end (delta: 31.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.60ms. Allocated memory is still 167.8MB. Free memory was 89.6MB in the beginning and 87.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.95ms. Allocated memory is still 167.8MB. Free memory was 87.6MB in the beginning and 84.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 661.00ms. Allocated memory is still 167.8MB. Free memory was 84.6MB in the beginning and 42.5MB in the end (delta: 42.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 51485.21ms. Allocated memory is still 167.8MB. Free memory was 42.4MB in the beginning and 52.1MB in the end (delta: -9.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 74.05ms. Allocated memory is still 167.8MB. Free memory was 51.5MB in the beginning and 44.3MB in the end (delta: 7.2MB). 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: 51.4s, OverallIterations: 36, TraceHistogramMax: 1, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 33.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3803 SdHoareTripleChecker+Valid, 11.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3803 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 9.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 646 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15230 IncrementalHoareTripleChecker+Invalid, 15876 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 646 mSolverCounterUnsat, 0 mSDtfsCounter, 15230 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 905 GetRequests, 104 SyntacticMatches, 7 SemanticMatches, 794 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4353 ImplicationChecksByTransitivity, 12.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6239occurred in iteration=13, InterpolantAutomatonStates: 705, 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, 0.4s SatisfiabilityAnalysisTime, 15.6s InterpolantComputationTime, 524 NumberOfCodeBlocks, 524 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 524 ConstructedInterpolants, 10 QuantifiedInterpolants, 6466 SizeOfPredicates, 74 NumberOfNonLiveVariables, 542 ConjunctsInSsa, 160 ConjunctsInUnsatCore, 42 InterpolantComputations, 33 PerfectInterpolantSequences, 5/30 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 18:40:05,118 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