./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread/triangular-longest-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 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/pthread/triangular-longest-2.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 874fb84f685baf0441a9bf8db1864605baa10908128545fe3028b9b499246108 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:34:00,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:34:00,087 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:34:00,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:34:00,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:34:00,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:34:00,105 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:34:00,105 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:34:00,105 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:34:00,105 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:34:00,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:34:00,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:34:00,106 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:34:00,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:34:00,106 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:34:00,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:34:00,106 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:34:00,106 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:34:00,106 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:34:00,106 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:34:00,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:34:00,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:34:00,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:34:00,106 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:34:00,106 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:34:00,107 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:34:00,107 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:34:00,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:34:00,108 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:34:00,108 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:34:00,108 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:34:00,108 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:34:00,108 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:34:00,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:34:00,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:34:00,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:34:00,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:34:00,109 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:34:00,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:34:00,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:34:00,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:34:00,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:34:00,109 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:34:00,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:34:00,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:34:00,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:34:00,109 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:34:00,109 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:34:00,109 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:34:00,109 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:34:00,109 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 -> 874fb84f685baf0441a9bf8db1864605baa10908128545fe3028b9b499246108 [2025-01-10 06:34:00,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:34:00,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:34:00,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:34:00,306 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:34:00,306 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:34:00,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/triangular-longest-2.i [2025-01-10 06:34:01,482 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7608f3cfd/2c34edb6e7dc4fc7a8ce13b2910352f3/FLAGc2b29f9bc [2025-01-10 06:34:01,784 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:34:01,785 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longest-2.i [2025-01-10 06:34:01,797 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7608f3cfd/2c34edb6e7dc4fc7a8ce13b2910352f3/FLAGc2b29f9bc [2025-01-10 06:34:02,063 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7608f3cfd/2c34edb6e7dc4fc7a8ce13b2910352f3 [2025-01-10 06:34:02,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:34:02,067 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:34:02,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:34:02,069 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:34:02,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:34:02,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433bbd10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02, skipping insertion in model container [2025-01-10 06:34:02,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:34:02,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:34:02,309 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:34:02,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:34:02,387 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:34:02,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02 WrapperNode [2025-01-10 06:34:02,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:34:02,390 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:34:02,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:34:02,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:34:02,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,414 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2025-01-10 06:34:02,415 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:34:02,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:34:02,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:34:02,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:34:02,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,422 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,429 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-10 06:34:02,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,433 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,433 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,436 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:34:02,438 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:34:02,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:34:02,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:34:02,439 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (1/1) ... [2025-01-10 06:34:02,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:34:02,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:34:02,463 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) [2025-01-10 06:34:02,468 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 [2025-01-10 06:34:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-01-10 06:34:02,482 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-01-10 06:34:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-01-10 06:34:02,482 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-01-10 06:34:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 06:34:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:34:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:34:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 06:34:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:34:02,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:34:02,484 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:34:02,557 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:34:02,558 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:34:02,645 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:34:02,645 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:34:02,710 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:34:02,710 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:34:02,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:02 BoogieIcfgContainer [2025-01-10 06:34:02,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:34:02,715 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:34:02,715 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:34:02,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:34:02,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:34:02" (1/3) ... [2025-01-10 06:34:02,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf85414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:02, skipping insertion in model container [2025-01-10 06:34:02,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:02" (2/3) ... [2025-01-10 06:34:02,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cf85414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:02, skipping insertion in model container [2025-01-10 06:34:02,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:02" (3/3) ... [2025-01-10 06:34:02,722 INFO L128 eAbstractionObserver]: Analyzing ICFG triangular-longest-2.i [2025-01-10 06:34:02,732 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:34:02,734 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG triangular-longest-2.i that has 3 procedures, 31 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2025-01-10 06:34:02,734 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:34:02,785 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-10 06:34:02,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 32 transitions, 72 flow [2025-01-10 06:34:02,841 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2025-01-10 06:34:02,843 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:34:02,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 30 events. 2/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 73 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2025-01-10 06:34:02,848 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 32 transitions, 72 flow [2025-01-10 06:34:02,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 30 transitions, 66 flow [2025-01-10 06:34:02,857 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:34:02,869 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;@4e76bff9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:34:02,869 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-01-10 06:34:02,875 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:34:02,875 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-01-10 06:34:02,875 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:34:02,875 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:02,875 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 06:34:02,878 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:02,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:02,882 INFO L85 PathProgramCache]: Analyzing trace with hash 200350461, now seen corresponding path program 1 times [2025-01-10 06:34:02,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:02,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208585199] [2025-01-10 06:34:02,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:02,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:02,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:34:02,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:34:02,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:02,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:03,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:03,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:03,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208585199] [2025-01-10 06:34:03,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208585199] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:03,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:03,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:34:03,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342948840] [2025-01-10 06:34:03,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:03,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:34:03,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:03,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:34:03,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:34:03,107 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:34:03,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2025-01-10 06:34:03,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:03,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:34:03,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:03,247 INFO L124 PetriNetUnfolderBase]: 288/572 cut-off events. [2025-01-10 06:34:03,247 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:34:03,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1055 conditions, 572 events. 288/572 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3043 event pairs, 118 based on Foata normal form. 0/427 useless extension candidates. Maximal degree in co-relation 1045. Up to 241 conditions per place. [2025-01-10 06:34:03,252 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 27 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2025-01-10 06:34:03,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 42 transitions, 150 flow [2025-01-10 06:34:03,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:34:03,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:34:03,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2025-01-10 06:34:03,261 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7604166666666666 [2025-01-10 06:34:03,262 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 66 flow. Second operand 3 states and 73 transitions. [2025-01-10 06:34:03,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 42 transitions, 150 flow [2025-01-10 06:34:03,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 42 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:34:03,266 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 86 flow [2025-01-10 06:34:03,268 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2025-01-10 06:34:03,270 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2025-01-10 06:34:03,270 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 86 flow [2025-01-10 06:34:03,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2025-01-10 06:34:03,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:03,270 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 06:34:03,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:34:03,270 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:03,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:03,271 INFO L85 PathProgramCache]: Analyzing trace with hash 200350462, now seen corresponding path program 1 times [2025-01-10 06:34:03,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:03,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588918657] [2025-01-10 06:34:03,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:03,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:03,277 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:34:03,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:34:03,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:03,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:03,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:03,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:03,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588918657] [2025-01-10 06:34:03,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588918657] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:03,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:03,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:34:03,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445636219] [2025-01-10 06:34:03,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:03,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:34:03,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:03,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:34:03,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:34:03,316 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:34:03,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2025-01-10 06:34:03,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:03,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:34:03,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:03,390 INFO L124 PetriNetUnfolderBase]: 279/583 cut-off events. [2025-01-10 06:34:03,390 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2025-01-10 06:34:03,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 583 events. 279/583 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3038 event pairs, 102 based on Foata normal form. 16/530 useless extension candidates. Maximal degree in co-relation 1151. Up to 266 conditions per place. [2025-01-10 06:34:03,394 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 27 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2025-01-10 06:34:03,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 174 flow [2025-01-10 06:34:03,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:34:03,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:34:03,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-01-10 06:34:03,395 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2025-01-10 06:34:03,395 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 86 flow. Second operand 3 states and 72 transitions. [2025-01-10 06:34:03,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 174 flow [2025-01-10 06:34:03,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:34:03,397 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 100 flow [2025-01-10 06:34:03,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2025-01-10 06:34:03,397 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2025-01-10 06:34:03,398 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 100 flow [2025-01-10 06:34:03,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 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) [2025-01-10 06:34:03,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:03,398 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:03,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:34:03,398 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:03,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:03,398 INFO L85 PathProgramCache]: Analyzing trace with hash -736727232, now seen corresponding path program 1 times [2025-01-10 06:34:03,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:03,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036233408] [2025-01-10 06:34:03,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:03,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:03,404 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:34:03,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:34:03,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:03,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:03,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:03,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:03,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036233408] [2025-01-10 06:34:03,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036233408] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:03,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:03,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:34:03,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970305306] [2025-01-10 06:34:03,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:03,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:34:03,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:03,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:34:03,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:34:03,454 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2025-01-10 06:34:03,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:34:03,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:03,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2025-01-10 06:34:03,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:03,648 INFO L124 PetriNetUnfolderBase]: 661/1318 cut-off events. [2025-01-10 06:34:03,648 INFO L125 PetriNetUnfolderBase]: For 433/433 co-relation queries the response was YES. [2025-01-10 06:34:03,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2743 conditions, 1318 events. 661/1318 cut-off events. For 433/433 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8082 event pairs, 260 based on Foata normal form. 64/1231 useless extension candidates. Maximal degree in co-relation 2730. Up to 721 conditions per place. [2025-01-10 06:34:03,656 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 50 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2025-01-10 06:34:03,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 62 transitions, 302 flow [2025-01-10 06:34:03,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:34:03,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:34:03,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2025-01-10 06:34:03,657 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7265625 [2025-01-10 06:34:03,657 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 100 flow. Second operand 4 states and 93 transitions. [2025-01-10 06:34:03,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 62 transitions, 302 flow [2025-01-10 06:34:03,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 62 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:34:03,659 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 120 flow [2025-01-10 06:34:03,659 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2025-01-10 06:34:03,660 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2025-01-10 06:34:03,660 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 120 flow [2025-01-10 06:34:03,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:34:03,660 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:03,660 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:03,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:34:03,660 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:03,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:03,661 INFO L85 PathProgramCache]: Analyzing trace with hash -745241499, now seen corresponding path program 1 times [2025-01-10 06:34:03,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:03,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441697001] [2025-01-10 06:34:03,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:03,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:03,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:34:03,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:34:03,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:03,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:03,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:03,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:03,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441697001] [2025-01-10 06:34:03,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441697001] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:03,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:03,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:34:03,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084122092] [2025-01-10 06:34:03,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:03,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:34:03,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:03,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:34:03,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:34:03,692 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:34:03,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 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) [2025-01-10 06:34:03,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:03,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:34:03,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:03,778 INFO L124 PetriNetUnfolderBase]: 439/1041 cut-off events. [2025-01-10 06:34:03,778 INFO L125 PetriNetUnfolderBase]: For 448/460 co-relation queries the response was YES. [2025-01-10 06:34:03,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2340 conditions, 1041 events. 439/1041 cut-off events. For 448/460 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6784 event pairs, 151 based on Foata normal form. 12/982 useless extension candidates. Maximal degree in co-relation 2325. Up to 459 conditions per place. [2025-01-10 06:34:03,782 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 37 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2025-01-10 06:34:03,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 53 transitions, 267 flow [2025-01-10 06:34:03,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:34:03,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:34:03,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2025-01-10 06:34:03,783 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.78125 [2025-01-10 06:34:03,783 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 120 flow. Second operand 3 states and 75 transitions. [2025-01-10 06:34:03,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 53 transitions, 267 flow [2025-01-10 06:34:03,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 53 transitions, 264 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:34:03,785 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 140 flow [2025-01-10 06:34:03,785 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2025-01-10 06:34:03,785 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2025-01-10 06:34:03,785 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 140 flow [2025-01-10 06:34:03,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 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) [2025-01-10 06:34:03,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:03,785 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:03,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:34:03,786 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:03,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:03,786 INFO L85 PathProgramCache]: Analyzing trace with hash -745241498, now seen corresponding path program 1 times [2025-01-10 06:34:03,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:03,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744456120] [2025-01-10 06:34:03,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:03,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:03,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:34:03,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:34:03,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:03,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:03,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:03,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:03,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744456120] [2025-01-10 06:34:03,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744456120] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:03,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:03,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:34:03,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502137858] [2025-01-10 06:34:03,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:03,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:34:03,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:03,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:34:03,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:34:03,854 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:34:03,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 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) [2025-01-10 06:34:03,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:03,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:34:03,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:03,972 INFO L124 PetriNetUnfolderBase]: 417/1031 cut-off events. [2025-01-10 06:34:03,972 INFO L125 PetriNetUnfolderBase]: For 603/615 co-relation queries the response was YES. [2025-01-10 06:34:03,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2471 conditions, 1031 events. 417/1031 cut-off events. For 603/615 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6809 event pairs, 117 based on Foata normal form. 36/1032 useless extension candidates. Maximal degree in co-relation 2453. Up to 483 conditions per place. [2025-01-10 06:34:03,980 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 37 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2025-01-10 06:34:03,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 54 transitions, 290 flow [2025-01-10 06:34:03,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:34:03,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:34:03,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2025-01-10 06:34:03,981 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2025-01-10 06:34:03,981 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 140 flow. Second operand 3 states and 74 transitions. [2025-01-10 06:34:03,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 54 transitions, 290 flow [2025-01-10 06:34:03,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 54 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:34:03,984 INFO L231 Difference]: Finished difference. Result has 46 places, 38 transitions, 154 flow [2025-01-10 06:34:03,984 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2025-01-10 06:34:03,985 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 11 predicate places. [2025-01-10 06:34:03,985 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 154 flow [2025-01-10 06:34:03,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 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) [2025-01-10 06:34:03,985 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:03,985 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:03,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 06:34:03,985 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:03,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:03,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1082466312, now seen corresponding path program 1 times [2025-01-10 06:34:03,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:03,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081565213] [2025-01-10 06:34:03,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:03,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:03,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:34:03,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:34:03,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:03,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:04,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:04,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:04,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081565213] [2025-01-10 06:34:04,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081565213] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:04,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:04,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:34:04,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291516635] [2025-01-10 06:34:04,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:04,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:34:04,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:04,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:34:04,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:34:04,034 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2025-01-10 06:34:04,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2025-01-10 06:34:04,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:04,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2025-01-10 06:34:04,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:04,214 INFO L124 PetriNetUnfolderBase]: 661/1349 cut-off events. [2025-01-10 06:34:04,214 INFO L125 PetriNetUnfolderBase]: For 1033/1154 co-relation queries the response was YES. [2025-01-10 06:34:04,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3369 conditions, 1349 events. 661/1349 cut-off events. For 1033/1154 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 8885 event pairs, 378 based on Foata normal form. 89/1388 useless extension candidates. Maximal degree in co-relation 3350. Up to 853 conditions per place. [2025-01-10 06:34:04,221 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 51 selfloop transitions, 3 changer transitions 0/64 dead transitions. [2025-01-10 06:34:04,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 64 transitions, 376 flow [2025-01-10 06:34:04,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:34:04,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:34:04,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2025-01-10 06:34:04,222 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6953125 [2025-01-10 06:34:04,222 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 154 flow. Second operand 4 states and 89 transitions. [2025-01-10 06:34:04,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 64 transitions, 376 flow [2025-01-10 06:34:04,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 64 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:34:04,224 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 174 flow [2025-01-10 06:34:04,224 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2025-01-10 06:34:04,225 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 15 predicate places. [2025-01-10 06:34:04,225 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 174 flow [2025-01-10 06:34:04,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2025-01-10 06:34:04,225 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:04,225 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:04,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 06:34:04,225 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:04,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:04,226 INFO L85 PathProgramCache]: Analyzing trace with hash -572130395, now seen corresponding path program 1 times [2025-01-10 06:34:04,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:04,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770313716] [2025-01-10 06:34:04,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:04,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:04,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 06:34:04,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 06:34:04,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:04,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:04,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:04,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:04,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770313716] [2025-01-10 06:34:04,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770313716] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:04,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:04,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:34:04,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100634340] [2025-01-10 06:34:04,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:04,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:34:04,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:04,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:34:04,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:34:04,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:34:04,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:34:04,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:04,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:34:04,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:04,414 INFO L124 PetriNetUnfolderBase]: 553/1323 cut-off events. [2025-01-10 06:34:04,414 INFO L125 PetriNetUnfolderBase]: For 1098/1191 co-relation queries the response was YES. [2025-01-10 06:34:04,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3486 conditions, 1323 events. 553/1323 cut-off events. For 1098/1191 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9426 event pairs, 147 based on Foata normal form. 87/1368 useless extension candidates. Maximal degree in co-relation 3465. Up to 422 conditions per place. [2025-01-10 06:34:04,421 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 51 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2025-01-10 06:34:04,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 74 transitions, 435 flow [2025-01-10 06:34:04,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:34:04,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:34:04,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2025-01-10 06:34:04,422 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.74375 [2025-01-10 06:34:04,422 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 174 flow. Second operand 5 states and 119 transitions. [2025-01-10 06:34:04,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 74 transitions, 435 flow [2025-01-10 06:34:04,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 74 transitions, 430 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:34:04,424 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 258 flow [2025-01-10 06:34:04,424 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2025-01-10 06:34:04,425 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 21 predicate places. [2025-01-10 06:34:04,425 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 258 flow [2025-01-10 06:34:04,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:34:04,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:04,425 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:04,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 06:34:04,425 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:04,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:04,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1153156442, now seen corresponding path program 1 times [2025-01-10 06:34:04,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:04,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595760070] [2025-01-10 06:34:04,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:04,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:04,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 06:34:04,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 06:34:04,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:04,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:04,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:04,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595760070] [2025-01-10 06:34:04,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595760070] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:04,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:04,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:34:04,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593233324] [2025-01-10 06:34:04,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:04,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:34:04,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:04,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:34:04,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:34:04,461 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:34:04,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 258 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:34:04,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:04,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:34:04,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:04,641 INFO L124 PetriNetUnfolderBase]: 608/1492 cut-off events. [2025-01-10 06:34:04,641 INFO L125 PetriNetUnfolderBase]: For 1768/1900 co-relation queries the response was YES. [2025-01-10 06:34:04,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4070 conditions, 1492 events. 608/1492 cut-off events. For 1768/1900 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 10801 event pairs, 81 based on Foata normal form. 76/1537 useless extension candidates. Maximal degree in co-relation 4045. Up to 509 conditions per place. [2025-01-10 06:34:04,654 INFO L140 encePairwiseOnDemand]: 26/32 looper letters, 55 selfloop transitions, 12 changer transitions 0/81 dead transitions. [2025-01-10 06:34:04,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 81 transitions, 545 flow [2025-01-10 06:34:04,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:34:04,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:34:04,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2025-01-10 06:34:04,655 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.725 [2025-01-10 06:34:04,655 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 258 flow. Second operand 5 states and 116 transitions. [2025-01-10 06:34:04,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 81 transitions, 545 flow [2025-01-10 06:34:04,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 81 transitions, 543 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-01-10 06:34:04,662 INFO L231 Difference]: Finished difference. Result has 62 places, 52 transitions, 328 flow [2025-01-10 06:34:04,662 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=328, PETRI_PLACES=62, PETRI_TRANSITIONS=52} [2025-01-10 06:34:04,663 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 27 predicate places. [2025-01-10 06:34:04,663 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 52 transitions, 328 flow [2025-01-10 06:34:04,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:34:04,663 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:04,663 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:04,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 06:34:04,663 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:04,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:04,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1153142163, now seen corresponding path program 1 times [2025-01-10 06:34:04,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:04,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680352951] [2025-01-10 06:34:04,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:04,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:04,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 06:34:04,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 06:34:04,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:04,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:04,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:04,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:04,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680352951] [2025-01-10 06:34:04,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680352951] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:04,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:04,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:34:04,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554877590] [2025-01-10 06:34:04,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:04,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:34:04,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:04,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:34:04,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:34:04,729 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:34:04,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 52 transitions, 328 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:34:04,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:04,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:34:04,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:04,860 INFO L124 PetriNetUnfolderBase]: 503/1157 cut-off events. [2025-01-10 06:34:04,861 INFO L125 PetriNetUnfolderBase]: For 2241/2394 co-relation queries the response was YES. [2025-01-10 06:34:04,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3301 conditions, 1157 events. 503/1157 cut-off events. For 2241/2394 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7513 event pairs, 378 based on Foata normal form. 103/1188 useless extension candidates. Maximal degree in co-relation 3272. Up to 846 conditions per place. [2025-01-10 06:34:04,868 INFO L140 encePairwiseOnDemand]: 29/32 looper letters, 30 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2025-01-10 06:34:04,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 45 transitions, 319 flow [2025-01-10 06:34:04,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:34:04,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:34:04,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2025-01-10 06:34:04,869 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625 [2025-01-10 06:34:04,869 INFO L175 Difference]: Start difference. First operand has 62 places, 52 transitions, 328 flow. Second operand 3 states and 60 transitions. [2025-01-10 06:34:04,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 45 transitions, 319 flow [2025-01-10 06:34:04,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 45 transitions, 304 flow, removed 3 selfloop flow, removed 3 redundant places. [2025-01-10 06:34:04,873 INFO L231 Difference]: Finished difference. Result has 58 places, 45 transitions, 244 flow [2025-01-10 06:34:04,873 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=58, PETRI_TRANSITIONS=45} [2025-01-10 06:34:04,873 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 23 predicate places. [2025-01-10 06:34:04,873 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 45 transitions, 244 flow [2025-01-10 06:34:04,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:34:04,874 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:04,874 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:04,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-10 06:34:04,874 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:04,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:04,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1153142162, now seen corresponding path program 1 times [2025-01-10 06:34:04,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:04,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147272477] [2025-01-10 06:34:04,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:04,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:04,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-10 06:34:04,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-10 06:34:04,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:04,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:04,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:04,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:04,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147272477] [2025-01-10 06:34:04,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147272477] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:04,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:04,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:34:04,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768897723] [2025-01-10 06:34:04,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:04,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:34:04,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:04,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:34:04,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:34:04,909 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:34:04,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 45 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:34:04,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:04,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:34:04,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:05,045 INFO L124 PetriNetUnfolderBase]: 558/1373 cut-off events. [2025-01-10 06:34:05,046 INFO L125 PetriNetUnfolderBase]: For 1496/1616 co-relation queries the response was YES. [2025-01-10 06:34:05,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3669 conditions, 1373 events. 558/1373 cut-off events. For 1496/1616 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9423 event pairs, 119 based on Foata normal form. 75/1409 useless extension candidates. Maximal degree in co-relation 3645. Up to 674 conditions per place. [2025-01-10 06:34:05,053 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 50 selfloop transitions, 5 changer transitions 0/69 dead transitions. [2025-01-10 06:34:05,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 69 transitions, 444 flow [2025-01-10 06:34:05,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:34:05,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:34:05,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2025-01-10 06:34:05,054 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.69375 [2025-01-10 06:34:05,054 INFO L175 Difference]: Start difference. First operand has 58 places, 45 transitions, 244 flow. Second operand 5 states and 111 transitions. [2025-01-10 06:34:05,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 69 transitions, 444 flow [2025-01-10 06:34:05,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 69 transitions, 443 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:34:05,058 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 269 flow [2025-01-10 06:34:05,058 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=269, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2025-01-10 06:34:05,059 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2025-01-10 06:34:05,059 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 269 flow [2025-01-10 06:34:05,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:34:05,059 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:05,059 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:05,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-10 06:34:05,059 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:05,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:05,060 INFO L85 PathProgramCache]: Analyzing trace with hash 765712008, now seen corresponding path program 1 times [2025-01-10 06:34:05,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:05,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523323971] [2025-01-10 06:34:05,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:05,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:05,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:34:05,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:34:05,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:05,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:05,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:05,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:05,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523323971] [2025-01-10 06:34:05,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523323971] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:34:05,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535395093] [2025-01-10 06:34:05,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:05,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:05,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:34:05,118 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) [2025-01-10 06:34:05,119 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 [2025-01-10 06:34:05,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:34:05,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:34:05,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:05,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:05,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:34:05,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:34:05,263 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:05,264 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:34:05,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535395093] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:05,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:34:05,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-01-10 06:34:05,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595235423] [2025-01-10 06:34:05,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:05,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:34:05,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:05,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:34:05,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:34:05,270 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2025-01-10 06:34:05,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 269 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 06:34:05,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:05,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2025-01-10 06:34:05,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:05,464 INFO L124 PetriNetUnfolderBase]: 1036/2019 cut-off events. [2025-01-10 06:34:05,465 INFO L125 PetriNetUnfolderBase]: For 2495/2621 co-relation queries the response was YES. [2025-01-10 06:34:05,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5802 conditions, 2019 events. 1036/2019 cut-off events. For 2495/2621 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 13172 event pairs, 224 based on Foata normal form. 117/2016 useless extension candidates. Maximal degree in co-relation 5775. Up to 785 conditions per place. [2025-01-10 06:34:05,483 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 57 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2025-01-10 06:34:05,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 72 transitions, 540 flow [2025-01-10 06:34:05,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:34:05,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:34:05,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2025-01-10 06:34:05,484 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.609375 [2025-01-10 06:34:05,484 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 269 flow. Second operand 4 states and 78 transitions. [2025-01-10 06:34:05,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 72 transitions, 540 flow [2025-01-10 06:34:05,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 72 transitions, 524 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-01-10 06:34:05,492 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 267 flow [2025-01-10 06:34:05,493 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=267, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2025-01-10 06:34:05,494 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2025-01-10 06:34:05,494 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 267 flow [2025-01-10 06:34:05,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 06:34:05,494 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:05,495 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-01-10 06:34:05,502 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 [2025-01-10 06:34:05,699 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,SelfDestructingSolverStorable10 [2025-01-10 06:34:05,700 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:05,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:05,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2032731302, now seen corresponding path program 1 times [2025-01-10 06:34:05,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:05,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420955980] [2025-01-10 06:34:05,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:05,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:05,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:34:05,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:34:05,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:05,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:05,745 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:34:05,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:05,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420955980] [2025-01-10 06:34:05,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420955980] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:05,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:05,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:34:05,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675850091] [2025-01-10 06:34:05,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:05,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:34:05,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:05,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:34:05,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:34:05,753 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2025-01-10 06:34:05,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 267 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2025-01-10 06:34:05,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:05,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2025-01-10 06:34:05,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:05,937 INFO L124 PetriNetUnfolderBase]: 883/1891 cut-off events. [2025-01-10 06:34:05,937 INFO L125 PetriNetUnfolderBase]: For 2721/2800 co-relation queries the response was YES. [2025-01-10 06:34:05,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5512 conditions, 1891 events. 883/1891 cut-off events. For 2721/2800 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 12779 event pairs, 246 based on Foata normal form. 108/1964 useless extension candidates. Maximal degree in co-relation 5486. Up to 726 conditions per place. [2025-01-10 06:34:05,947 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 57 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2025-01-10 06:34:05,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 72 transitions, 534 flow [2025-01-10 06:34:05,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:34:05,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:34:05,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2025-01-10 06:34:05,948 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.609375 [2025-01-10 06:34:05,948 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 267 flow. Second operand 4 states and 78 transitions. [2025-01-10 06:34:05,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 72 transitions, 534 flow [2025-01-10 06:34:05,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 72 transitions, 522 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:34:05,952 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 271 flow [2025-01-10 06:34:05,952 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=271, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2025-01-10 06:34:05,953 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2025-01-10 06:34:05,953 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 271 flow [2025-01-10 06:34:05,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2025-01-10 06:34:05,953 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:05,953 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:05,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-10 06:34:05,953 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:05,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:05,953 INFO L85 PathProgramCache]: Analyzing trace with hash 13406219, now seen corresponding path program 1 times [2025-01-10 06:34:05,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:05,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936450250] [2025-01-10 06:34:05,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:05,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:05,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 06:34:05,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 06:34:05,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:05,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:05,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:05,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936450250] [2025-01-10 06:34:05,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936450250] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:34:05,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105115698] [2025-01-10 06:34:05,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:05,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:05,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:34:06,003 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) [2025-01-10 06:34:06,005 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 [2025-01-10 06:34:06,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-10 06:34:06,044 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-10 06:34:06,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:06,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:06,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:34:06,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:34:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:06,076 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:34:06,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105115698] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:06,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:34:06,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-01-10 06:34:06,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085975896] [2025-01-10 06:34:06,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:06,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:34:06,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:06,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:34:06,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:34:06,086 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2025-01-10 06:34:06,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2025-01-10 06:34:06,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:06,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2025-01-10 06:34:06,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:06,314 INFO L124 PetriNetUnfolderBase]: 845/1723 cut-off events. [2025-01-10 06:34:06,314 INFO L125 PetriNetUnfolderBase]: For 3397/3453 co-relation queries the response was YES. [2025-01-10 06:34:06,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5160 conditions, 1723 events. 845/1723 cut-off events. For 3397/3453 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 11298 event pairs, 70 based on Foata normal form. 125/1770 useless extension candidates. Maximal degree in co-relation 5134. Up to 562 conditions per place. [2025-01-10 06:34:06,323 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 71 selfloop transitions, 6 changer transitions 1/87 dead transitions. [2025-01-10 06:34:06,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 87 transitions, 686 flow [2025-01-10 06:34:06,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:34:06,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:34:06,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2025-01-10 06:34:06,324 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2025-01-10 06:34:06,324 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 271 flow. Second operand 6 states and 116 transitions. [2025-01-10 06:34:06,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 87 transitions, 686 flow [2025-01-10 06:34:06,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 87 transitions, 666 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:34:06,329 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 271 flow [2025-01-10 06:34:06,329 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2025-01-10 06:34:06,330 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 30 predicate places. [2025-01-10 06:34:06,330 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 271 flow [2025-01-10 06:34:06,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2025-01-10 06:34:06,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:06,330 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:06,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 06:34:06,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:06,531 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:06,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:06,531 INFO L85 PathProgramCache]: Analyzing trace with hash 160065062, now seen corresponding path program 1 times [2025-01-10 06:34:06,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:06,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598448567] [2025-01-10 06:34:06,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:06,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:06,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 06:34:06,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 06:34:06,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:06,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:06,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:06,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:06,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598448567] [2025-01-10 06:34:06,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598448567] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:34:06,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889622481] [2025-01-10 06:34:06,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:06,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:06,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:34:06,621 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) [2025-01-10 06:34:06,622 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 [2025-01-10 06:34:06,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 06:34:06,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 06:34:06,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:06,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:06,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:34:06,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:34:06,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:06,691 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:34:06,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:06,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889622481] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:34:06,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:34:06,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-01-10 06:34:06,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489015407] [2025-01-10 06:34:06,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:34:06,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 06:34:06,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:06,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 06:34:06,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:34:06,738 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:34:06,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 271 flow. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 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) [2025-01-10 06:34:06,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:06,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:34:06,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:06,913 INFO L124 PetriNetUnfolderBase]: 747/1709 cut-off events. [2025-01-10 06:34:06,913 INFO L125 PetriNetUnfolderBase]: For 3576/3629 co-relation queries the response was YES. [2025-01-10 06:34:06,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5224 conditions, 1709 events. 747/1709 cut-off events. For 3576/3629 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 10704 event pairs, 71 based on Foata normal form. 140/1824 useless extension candidates. Maximal degree in co-relation 5197. Up to 289 conditions per place. [2025-01-10 06:34:06,922 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 61 selfloop transitions, 12 changer transitions 4/89 dead transitions. [2025-01-10 06:34:06,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 89 transitions, 653 flow [2025-01-10 06:34:06,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 06:34:06,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 06:34:06,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 160 transitions. [2025-01-10 06:34:06,923 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2025-01-10 06:34:06,923 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 271 flow. Second operand 7 states and 160 transitions. [2025-01-10 06:34:06,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 89 transitions, 653 flow [2025-01-10 06:34:06,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 89 transitions, 626 flow, removed 7 selfloop flow, removed 4 redundant places. [2025-01-10 06:34:06,927 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 375 flow [2025-01-10 06:34:06,927 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=375, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2025-01-10 06:34:06,928 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 37 predicate places. [2025-01-10 06:34:06,928 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 375 flow [2025-01-10 06:34:06,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 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) [2025-01-10 06:34:06,928 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:06,928 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:06,934 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 [2025-01-10 06:34:07,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:07,132 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:07,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:07,132 INFO L85 PathProgramCache]: Analyzing trace with hash 415593026, now seen corresponding path program 1 times [2025-01-10 06:34:07,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:07,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524372942] [2025-01-10 06:34:07,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:07,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:07,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 06:34:07,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 06:34:07,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:07,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:07,158 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:34:07,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:07,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524372942] [2025-01-10 06:34:07,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524372942] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:07,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:34:07,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:34:07,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500151480] [2025-01-10 06:34:07,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:07,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:34:07,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:07,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:34:07,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:34:07,163 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2025-01-10 06:34:07,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 375 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2025-01-10 06:34:07,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:07,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2025-01-10 06:34:07,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:07,329 INFO L124 PetriNetUnfolderBase]: 1190/2257 cut-off events. [2025-01-10 06:34:07,329 INFO L125 PetriNetUnfolderBase]: For 5916/5963 co-relation queries the response was YES. [2025-01-10 06:34:07,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7478 conditions, 2257 events. 1190/2257 cut-off events. For 5916/5963 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 13393 event pairs, 275 based on Foata normal form. 155/2378 useless extension candidates. Maximal degree in co-relation 7446. Up to 893 conditions per place. [2025-01-10 06:34:07,360 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 63 selfloop transitions, 6 changer transitions 0/77 dead transitions. [2025-01-10 06:34:07,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 77 transitions, 740 flow [2025-01-10 06:34:07,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:34:07,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:34:07,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 74 transitions. [2025-01-10 06:34:07,363 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.578125 [2025-01-10 06:34:07,364 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 375 flow. Second operand 4 states and 74 transitions. [2025-01-10 06:34:07,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 77 transitions, 740 flow [2025-01-10 06:34:07,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 77 transitions, 705 flow, removed 11 selfloop flow, removed 3 redundant places. [2025-01-10 06:34:07,370 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 368 flow [2025-01-10 06:34:07,370 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=368, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2025-01-10 06:34:07,371 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 37 predicate places. [2025-01-10 06:34:07,371 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 368 flow [2025-01-10 06:34:07,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2025-01-10 06:34:07,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:07,371 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:07,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-10 06:34:07,372 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:07,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:07,372 INFO L85 PathProgramCache]: Analyzing trace with hash 982258284, now seen corresponding path program 1 times [2025-01-10 06:34:07,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:07,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52344672] [2025-01-10 06:34:07,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:07,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:07,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 06:34:07,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 06:34:07,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:07,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:07,449 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:07,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:07,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52344672] [2025-01-10 06:34:07,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52344672] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:34:07,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091362834] [2025-01-10 06:34:07,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:07,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:07,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:34:07,453 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:34:07,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 06:34:07,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 06:34:07,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 06:34:07,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:07,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:07,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 06:34:07,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:34:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:07,550 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:34:07,610 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:07,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091362834] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:34:07,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:34:07,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-01-10 06:34:07,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278009463] [2025-01-10 06:34:07,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:34:07,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-10 06:34:07,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:07,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-10 06:34:07,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-01-10 06:34:07,628 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:34:07,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 368 flow. Second operand has 12 states, 12 states have (on average 16.333333333333332) internal successors, (196), 12 states have internal predecessors, (196), 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) [2025-01-10 06:34:07,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:07,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:34:07,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:07,929 INFO L124 PetriNetUnfolderBase]: 972/2188 cut-off events. [2025-01-10 06:34:07,930 INFO L125 PetriNetUnfolderBase]: For 7437/7458 co-relation queries the response was YES. [2025-01-10 06:34:07,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7026 conditions, 2188 events. 972/2188 cut-off events. For 7437/7458 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 13042 event pairs, 35 based on Foata normal form. 123/2302 useless extension candidates. Maximal degree in co-relation 6995. Up to 277 conditions per place. [2025-01-10 06:34:07,942 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 78 selfloop transitions, 17 changer transitions 17/124 dead transitions. [2025-01-10 06:34:07,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 124 transitions, 946 flow [2025-01-10 06:34:07,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 06:34:07,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-01-10 06:34:07,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 270 transitions. [2025-01-10 06:34:07,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.703125 [2025-01-10 06:34:07,943 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 368 flow. Second operand 12 states and 270 transitions. [2025-01-10 06:34:07,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 124 transitions, 946 flow [2025-01-10 06:34:07,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 124 transitions, 909 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-01-10 06:34:07,951 INFO L231 Difference]: Finished difference. Result has 87 places, 52 transitions, 427 flow [2025-01-10 06:34:07,951 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=427, PETRI_PLACES=87, PETRI_TRANSITIONS=52} [2025-01-10 06:34:07,952 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 52 predicate places. [2025-01-10 06:34:07,952 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 52 transitions, 427 flow [2025-01-10 06:34:07,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.333333333333332) internal successors, (196), 12 states have internal predecessors, (196), 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) [2025-01-10 06:34:07,952 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:07,952 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:07,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-10 06:34:08,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-01-10 06:34:08,153 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:08,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:08,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1666394388, now seen corresponding path program 1 times [2025-01-10 06:34:08,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:08,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484266807] [2025-01-10 06:34:08,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:08,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:08,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-10 06:34:08,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-10 06:34:08,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:08,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:08,312 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:08,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:08,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484266807] [2025-01-10 06:34:08,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484266807] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:34:08,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111944758] [2025-01-10 06:34:08,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:34:08,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:08,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:34:08,317 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:34:08,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-10 06:34:08,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-10 06:34:08,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-10 06:34:08,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:34:08,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:08,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 06:34:08,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:34:08,422 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:08,423 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:34:08,518 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:08,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111944758] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:34:08,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:34:08,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2025-01-10 06:34:08,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095381572] [2025-01-10 06:34:08,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:34:08,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-10 06:34:08,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:08,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-10 06:34:08,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2025-01-10 06:34:08,539 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:34:08,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 52 transitions, 427 flow. Second operand has 16 states, 16 states have (on average 16.25) internal successors, (260), 16 states have internal predecessors, (260), 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) [2025-01-10 06:34:08,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:08,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:34:08,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:09,002 INFO L124 PetriNetUnfolderBase]: 1422/3158 cut-off events. [2025-01-10 06:34:09,003 INFO L125 PetriNetUnfolderBase]: For 11455/11481 co-relation queries the response was YES. [2025-01-10 06:34:09,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10126 conditions, 3158 events. 1422/3158 cut-off events. For 11455/11481 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 19018 event pairs, 71 based on Foata normal form. 116/3255 useless extension candidates. Maximal degree in co-relation 10087. Up to 389 conditions per place. [2025-01-10 06:34:09,018 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 92 selfloop transitions, 24 changer transitions 25/153 dead transitions. [2025-01-10 06:34:09,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 153 transitions, 1222 flow [2025-01-10 06:34:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-10 06:34:09,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-10 06:34:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 336 transitions. [2025-01-10 06:34:09,020 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2025-01-10 06:34:09,020 INFO L175 Difference]: Start difference. First operand has 87 places, 52 transitions, 427 flow. Second operand 15 states and 336 transitions. [2025-01-10 06:34:09,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 153 transitions, 1222 flow [2025-01-10 06:34:09,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 153 transitions, 1209 flow, removed 3 selfloop flow, removed 3 redundant places. [2025-01-10 06:34:09,031 INFO L231 Difference]: Finished difference. Result has 105 places, 60 transitions, 578 flow [2025-01-10 06:34:09,031 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=578, PETRI_PLACES=105, PETRI_TRANSITIONS=60} [2025-01-10 06:34:09,031 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 70 predicate places. [2025-01-10 06:34:09,031 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 60 transitions, 578 flow [2025-01-10 06:34:09,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.25) internal successors, (260), 16 states have internal predecessors, (260), 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) [2025-01-10 06:34:09,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:09,032 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:09,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 06:34:09,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-01-10 06:34:09,236 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:09,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:09,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1059982752, now seen corresponding path program 2 times [2025-01-10 06:34:09,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:09,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147903913] [2025-01-10 06:34:09,237 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:34:09,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:09,243 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 2 equivalence classes. [2025-01-10 06:34:09,252 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 65 of 65 statements. [2025-01-10 06:34:09,252 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:34:09,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:09,484 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:09,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:09,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147903913] [2025-01-10 06:34:09,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147903913] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:34:09,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391623972] [2025-01-10 06:34:09,485 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:34:09,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:09,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:34:09,492 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:34:09,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-10 06:34:09,526 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 2 equivalence classes. [2025-01-10 06:34:09,543 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 65 of 65 statements. [2025-01-10 06:34:09,543 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:34:09,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:09,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-10 06:34:09,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:34:09,612 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:09,612 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:34:09,823 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:09,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391623972] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:34:09,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:34:09,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2025-01-10 06:34:09,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062668215] [2025-01-10 06:34:09,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:34:09,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-01-10 06:34:09,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:09,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-01-10 06:34:09,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2025-01-10 06:34:09,858 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:34:09,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 60 transitions, 578 flow. Second operand has 28 states, 28 states have (on average 16.142857142857142) internal successors, (452), 28 states have internal predecessors, (452), 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) [2025-01-10 06:34:09,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:09,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:34:09,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:11,031 INFO L124 PetriNetUnfolderBase]: 2412/5356 cut-off events. [2025-01-10 06:34:11,032 INFO L125 PetriNetUnfolderBase]: For 28187/28208 co-relation queries the response was YES. [2025-01-10 06:34:11,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17421 conditions, 5356 events. 2412/5356 cut-off events. For 28187/28208 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 31800 event pairs, 35 based on Foata normal form. 219/5566 useless extension candidates. Maximal degree in co-relation 17374. Up to 709 conditions per place. [2025-01-10 06:34:11,071 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 158 selfloop transitions, 41 changer transitions 49/260 dead transitions. [2025-01-10 06:34:11,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 260 transitions, 2117 flow [2025-01-10 06:34:11,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-01-10 06:34:11,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2025-01-10 06:34:11,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 627 transitions. [2025-01-10 06:34:11,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6997767857142857 [2025-01-10 06:34:11,076 INFO L175 Difference]: Start difference. First operand has 105 places, 60 transitions, 578 flow. Second operand 28 states and 627 transitions. [2025-01-10 06:34:11,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 260 transitions, 2117 flow [2025-01-10 06:34:11,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 260 transitions, 2037 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-01-10 06:34:11,109 INFO L231 Difference]: Finished difference. Result has 139 places, 76 transitions, 840 flow [2025-01-10 06:34:11,109 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=840, PETRI_PLACES=139, PETRI_TRANSITIONS=76} [2025-01-10 06:34:11,109 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 104 predicate places. [2025-01-10 06:34:11,109 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 76 transitions, 840 flow [2025-01-10 06:34:11,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 16.142857142857142) internal successors, (452), 28 states have internal predecessors, (452), 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) [2025-01-10 06:34:11,110 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:11,110 INFO L206 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:11,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-10 06:34:11,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-01-10 06:34:11,313 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:11,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:11,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1950256372, now seen corresponding path program 2 times [2025-01-10 06:34:11,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:11,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398389655] [2025-01-10 06:34:11,314 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:34:11,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:11,326 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 2 equivalence classes. [2025-01-10 06:34:11,348 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-01-10 06:34:11,348 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:34:11,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 412 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:11,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:11,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398389655] [2025-01-10 06:34:11,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398389655] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:34:11,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510032421] [2025-01-10 06:34:11,871 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:34:11,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:11,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:34:11,873 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:34:11,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-10 06:34:11,916 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 2 equivalence classes. [2025-01-10 06:34:11,945 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 115 of 115 statements. [2025-01-10 06:34:11,945 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:34:11,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:11,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-01-10 06:34:11,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:34:12,108 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 412 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:12,108 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:34:12,935 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 412 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:34:12,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510032421] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:34:12,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:34:12,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2025-01-10 06:34:12,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582299051] [2025-01-10 06:34:12,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:34:12,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-01-10 06:34:12,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:12,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-01-10 06:34:12,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=600, Invalid=1656, Unknown=0, NotChecked=0, Total=2256 [2025-01-10 06:34:13,025 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 32 [2025-01-10 06:34:13,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 76 transitions, 840 flow. Second operand has 48 states, 48 states have (on average 16.083333333333332) internal successors, (772), 48 states have internal predecessors, (772), 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) [2025-01-10 06:34:13,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:13,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 32 [2025-01-10 06:34:13,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:15,801 INFO L124 PetriNetUnfolderBase]: 4302/9494 cut-off events. [2025-01-10 06:34:15,801 INFO L125 PetriNetUnfolderBase]: For 80809/80835 co-relation queries the response was YES. [2025-01-10 06:34:15,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30885 conditions, 9494 events. 4302/9494 cut-off events. For 80809/80835 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 56673 event pairs, 71 based on Foata normal form. 404/9879 useless extension candidates. Maximal degree in co-relation 30825. Up to 1253 conditions per place. [2025-01-10 06:34:15,909 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 252 selfloop transitions, 72 changer transitions 89/425 dead transitions. [2025-01-10 06:34:15,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 425 transitions, 3531 flow [2025-01-10 06:34:15,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-01-10 06:34:15,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2025-01-10 06:34:15,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 1056 transitions. [2025-01-10 06:34:15,913 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7021276595744681 [2025-01-10 06:34:15,913 INFO L175 Difference]: Start difference. First operand has 139 places, 76 transitions, 840 flow. Second operand 47 states and 1056 transitions. [2025-01-10 06:34:15,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 425 transitions, 3531 flow [2025-01-10 06:34:15,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 425 transitions, 3385 flow, removed 0 selfloop flow, removed 11 redundant places. [2025-01-10 06:34:15,982 INFO L231 Difference]: Finished difference. Result has 197 places, 108 transitions, 1346 flow [2025-01-10 06:34:15,982 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=1346, PETRI_PLACES=197, PETRI_TRANSITIONS=108} [2025-01-10 06:34:15,983 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 162 predicate places. [2025-01-10 06:34:15,983 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 108 transitions, 1346 flow [2025-01-10 06:34:15,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 16.083333333333332) internal successors, (772), 48 states have internal predecessors, (772), 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) [2025-01-10 06:34:15,983 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:34:15,983 INFO L206 CegarLoopForPetriNet]: trace histogram [23, 22, 22, 22, 22, 22, 22, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:15,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-10 06:34:16,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:16,184 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2025-01-10 06:34:16,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:34:16,186 INFO L85 PathProgramCache]: Analyzing trace with hash 601775528, now seen corresponding path program 3 times [2025-01-10 06:34:16,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:34:16,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745586708] [2025-01-10 06:34:16,186 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:34:16,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:34:16,201 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 225 statements into 13 equivalence classes. [2025-01-10 06:34:16,273 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) and asserted 225 of 225 statements. [2025-01-10 06:34:16,274 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2025-01-10 06:34:16,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:17,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1733 backedges. 1636 proven. 86 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-10 06:34:17,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:34:17,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745586708] [2025-01-10 06:34:17,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745586708] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:34:17,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177816558] [2025-01-10 06:34:17,980 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:34:17,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:17,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:34:17,982 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:34:17,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-10 06:34:18,023 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 225 statements into 13 equivalence classes. [2025-01-10 06:34:18,081 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) and asserted 225 of 225 statements. [2025-01-10 06:34:18,081 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2025-01-10 06:34:18,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:34:18,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 46 conjuncts are in the unsatisfiable core [2025-01-10 06:34:18,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:34:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1733 backedges. 1722 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-10 06:34:18,313 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:34:18,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177816558] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:34:18,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:34:18,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [47] total 49 [2025-01-10 06:34:18,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872400104] [2025-01-10 06:34:18,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:34:18,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2025-01-10 06:34:18,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:34:18,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2025-01-10 06:34:18,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=581, Invalid=1771, Unknown=0, NotChecked=0, Total=2352 [2025-01-10 06:34:18,367 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2025-01-10 06:34:18,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 108 transitions, 1346 flow. Second operand has 47 states, 47 states have (on average 12.957446808510639) internal successors, (609), 47 states have internal predecessors, (609), 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) [2025-01-10 06:34:18,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:34:18,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2025-01-10 06:34:18,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:34:35,857 INFO L124 PetriNetUnfolderBase]: 57508/100344 cut-off events. [2025-01-10 06:34:35,857 INFO L125 PetriNetUnfolderBase]: For 259645/260241 co-relation queries the response was YES. [2025-01-10 06:34:38,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336284 conditions, 100344 events. 57508/100344 cut-off events. For 259645/260241 co-relation queries the response was YES. Maximal size of possible extension queue 822. Compared 834841 event pairs, 290 based on Foata normal form. 1322/101653 useless extension candidates. Maximal degree in co-relation 336211. Up to 11291 conditions per place. [2025-01-10 06:34:38,302 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 0 selfloop transitions, 0 changer transitions 1594/1594 dead transitions. [2025-01-10 06:34:38,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 1594 transitions, 21097 flow [2025-01-10 06:34:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2025-01-10 06:34:38,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2025-01-10 06:34:38,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 788 transitions. [2025-01-10 06:34:38,304 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5726744186046512 [2025-01-10 06:34:38,304 INFO L175 Difference]: Start difference. First operand has 197 places, 108 transitions, 1346 flow. Second operand 43 states and 788 transitions. [2025-01-10 06:34:38,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 1594 transitions, 21097 flow [2025-01-10 06:34:40,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 1594 transitions, 14768 flow, removed 19 selfloop flow, removed 72 redundant places. [2025-01-10 06:34:40,065 INFO L231 Difference]: Finished difference. Result has 160 places, 0 transitions, 0 flow [2025-01-10 06:34:40,065 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=0, PETRI_PLACES=160, PETRI_TRANSITIONS=0} [2025-01-10 06:34:40,066 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 125 predicate places. [2025-01-10 06:34:40,066 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 0 transitions, 0 flow [2025-01-10 06:34:40,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 12.957446808510639) internal successors, (609), 47 states have internal predecessors, (609), 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) [2025-01-10 06:34:40,070 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2025-01-10 06:34:40,071 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2025-01-10 06:34:40,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-10 06:34:40,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:34:40,272 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:34:40,276 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-10 06:34:40,276 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 06:34:40,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:34:40 BasicIcfg [2025-01-10 06:34:40,280 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 06:34:40,280 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 06:34:40,281 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 06:34:40,281 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 06:34:40,281 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:02" (3/4) ... [2025-01-10 06:34:40,282 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-10 06:34:40,284 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2025-01-10 06:34:40,284 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2025-01-10 06:34:40,286 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2025-01-10 06:34:40,287 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-01-10 06:34:40,287 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-10 06:34:40,287 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-10 06:34:40,341 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-10 06:34:40,342 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-10 06:34:40,342 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 06:34:40,342 INFO L158 Benchmark]: Toolchain (without parser) took 38275.40ms. Allocated memory was 142.6MB in the beginning and 9.4GB in the end (delta: 9.3GB). Free memory was 108.4MB in the beginning and 7.8GB in the end (delta: -7.7GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2025-01-10 06:34:40,343 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 226.5MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:34:40,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.60ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 89.2MB in the end (delta: 19.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:34:40,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.60ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 87.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 06:34:40,345 INFO L158 Benchmark]: Boogie Preprocessor took 22.28ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 85.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:34:40,345 INFO L158 Benchmark]: RCFGBuilder took 272.41ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 66.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 06:34:40,345 INFO L158 Benchmark]: TraceAbstraction took 37564.82ms. Allocated memory was 142.6MB in the beginning and 9.4GB in the end (delta: 9.3GB). Free memory was 66.0MB in the beginning and 7.8GB in the end (delta: -7.7GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2025-01-10 06:34:40,345 INFO L158 Benchmark]: Witness Printer took 61.35ms. Allocated memory is still 9.4GB. Free memory was 7.8GB in the beginning and 7.8GB in the end (delta: 6.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 06:34:40,347 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 226.5MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.60ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 89.2MB in the end (delta: 19.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.60ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 87.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.28ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 85.7MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 272.41ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 66.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 37564.82ms. Allocated memory was 142.6MB in the beginning and 9.4GB in the end (delta: 9.3GB). Free memory was 66.0MB in the beginning and 7.8GB in the end (delta: -7.7GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Witness Printer took 61.35ms. Allocated memory is still 9.4GB. Free memory was 7.8GB in the beginning and 7.8GB in the end (delta: 6.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 698]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 706]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: 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 5 procedures, 55 locations, 18 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: 37.5s, OverallIterations: 20, TraceHistogramMax: 23, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 29.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4046 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3977 mSDsluCounter, 244 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 227 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4602 IncrementalHoareTripleChecker+Invalid, 4678 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 17 mSDtfsCounter, 4602 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1028 GetRequests, 721 SyntacticMatches, 0 SemanticMatches, 307 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3472 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1346occurred in iteration=19, InterpolantAutomatonStates: 208, 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, 5.2s InterpolantComputationTime, 1120 NumberOfCodeBlocks, 1120 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 1342 ConstructedInterpolants, 0 QuantifiedInterpolants, 3924 SizeOfPredicates, 71 NumberOfNonLiveVariables, 1550 ConjunctsInSsa, 111 ConjunctsInUnsatCore, 33 InterpolantComputations, 15 PerfectInterpolantSequences, 3398/5253 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-10 06:34:40,360 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