./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/test-context1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d 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/weaver/test-context1.wvr.c -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 d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:14:28,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:14:28,297 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:14:28,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:14:28,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:14:28,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:14:28,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:14:28,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:14:28,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:14:28,331 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:14:28,331 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:14:28,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:14:28,332 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:14:28,332 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:14:28,332 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:14:28,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:14:28,333 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:14:28,333 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:14:28,333 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:14:28,333 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:14:28,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:14:28,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:14:28,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:14:28,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:14:28,333 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:14:28,333 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:14:28,334 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:14:28,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:14:28,334 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:14:28,334 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:14:28,334 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:14:28,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:14:28,334 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:14:28,334 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:14:28,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:14:28,334 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:14:28,334 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:14:28,334 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:14:28,334 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:14:28,334 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:14:28,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:14:28,335 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:14:28,335 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:14:28,335 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:14:28,335 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:14:28,335 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 -> d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e [2025-02-08 14:14:28,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:14:28,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:14:28,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:14:28,624 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:14:28,624 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:14:28,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-context1.wvr.c [2025-02-08 14:14:29,957 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b059b508/87201504526a414f89ddc24e1fe72289/FLAGc18b0bf0c [2025-02-08 14:14:30,221 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:14:30,221 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/test-context1.wvr.c [2025-02-08 14:14:30,228 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b059b508/87201504526a414f89ddc24e1fe72289/FLAGc18b0bf0c [2025-02-08 14:14:30,240 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b059b508/87201504526a414f89ddc24e1fe72289 [2025-02-08 14:14:30,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:14:30,244 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:14:30,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:14:30,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:14:30,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:14:30,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d984ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30, skipping insertion in model container [2025-02-08 14:14:30,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,266 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:14:30,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:14:30,397 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:14:30,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:14:30,435 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:14:30,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30 WrapperNode [2025-02-08 14:14:30,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:14:30,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:14:30,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:14:30,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:14:30,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,467 INFO L138 Inliner]: procedures = 23, calls = 25, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 142 [2025-02-08 14:14:30,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:14:30,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:14:30,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:14:30,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:14:30,475 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,477 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,492 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-02-08 14:14:30,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,498 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,498 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:14:30,504 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:14:30,504 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:14:30,504 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:14:30,505 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30" (1/1) ... [2025-02-08 14:14:30,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:14:30,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:14:30,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:14:30,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:14:30,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:14:30,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:14:30,555 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:14:30,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:14:30,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:14:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:14:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:14:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:14:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:14:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 14:14:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 14:14:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 14:14:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:14:30,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:14:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:14:30,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:14:30,557 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:14:30,651 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:14:30,653 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:14:30,970 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:14:30,970 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:14:31,210 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:14:31,210 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:14:31,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:14:31 BoogieIcfgContainer [2025-02-08 14:14:31,212 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:14:31,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:14:31,215 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:14:31,219 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:14:31,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:14:30" (1/3) ... [2025-02-08 14:14:31,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6013c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:14:31, skipping insertion in model container [2025-02-08 14:14:31,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:14:30" (2/3) ... [2025-02-08 14:14:31,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6013c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:14:31, skipping insertion in model container [2025-02-08 14:14:31,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:14:31" (3/3) ... [2025-02-08 14:14:31,222 INFO L128 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2025-02-08 14:14:31,234 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:14:31,235 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-context1.wvr.c that has 3 procedures, 38 locations, 1 initial locations, 3 loop locations, and 14 error locations. [2025-02-08 14:14:31,235 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:14:31,301 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 14:14:31,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 98 flow [2025-02-08 14:14:31,371 INFO L124 PetriNetUnfolderBase]: 5/40 cut-off events. [2025-02-08 14:14:31,375 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 14:14:31,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 40 events. 5/40 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 104 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2025-02-08 14:14:31,381 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 98 flow [2025-02-08 14:14:31,384 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 38 transitions, 85 flow [2025-02-08 14:14:31,395 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:14:31,407 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;@f09ba70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:14:31,407 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2025-02-08 14:14:31,411 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:14:31,411 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-08 14:14:31,411 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:14:31,411 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:31,412 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:14:31,413 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:31,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:31,417 INFO L85 PathProgramCache]: Analyzing trace with hash 416119, now seen corresponding path program 1 times [2025-02-08 14:14:31,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:31,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927629491] [2025-02-08 14:14:31,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:31,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:31,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:14:31,510 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:14:31,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:31,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:31,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:31,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:31,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927629491] [2025-02-08 14:14:31,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927629491] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:31,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:14:31,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:14:31,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232320735] [2025-02-08 14:14:31,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:31,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:14:31,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:31,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:14:31,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:14:31,711 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-02-08 14:14:31,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:31,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:31,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-02-08 14:14:31,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:31,921 INFO L124 PetriNetUnfolderBase]: 265/462 cut-off events. [2025-02-08 14:14:31,922 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2025-02-08 14:14:31,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 462 events. 265/462 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1935 event pairs, 224 based on Foata normal form. 1/305 useless extension candidates. Maximal degree in co-relation 885. Up to 456 conditions per place. [2025-02-08 14:14:31,928 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 26 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2025-02-08 14:14:31,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 135 flow [2025-02-08 14:14:31,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:14:31,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:14:31,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2025-02-08 14:14:31,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2025-02-08 14:14:31,945 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 85 flow. Second operand 4 states and 60 transitions. [2025-02-08 14:14:31,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 135 flow [2025-02-08 14:14:31,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:14:31,951 INFO L231 Difference]: Finished difference. Result has 36 places, 33 transitions, 93 flow [2025-02-08 14:14:31,953 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=36, PETRI_TRANSITIONS=33} [2025-02-08 14:14:31,957 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2025-02-08 14:14:31,959 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 93 flow [2025-02-08 14:14:31,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:31,959 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:31,959 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-08 14:14:31,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:14:31,960 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:31,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash -487932690, now seen corresponding path program 1 times [2025-02-08 14:14:31,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:31,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918148614] [2025-02-08 14:14:31,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:31,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:31,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:14:32,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:14:32,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:32,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:32,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:32,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:32,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918148614] [2025-02-08 14:14:32,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918148614] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:14:32,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692961365] [2025-02-08 14:14:32,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:32,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:32,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:14:32,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:14:32,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 14:14:32,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:14:32,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:14:32,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:32,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:32,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:14:32,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:14:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:32,257 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:14:32,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692961365] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:32,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:14:32,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-08 14:14:32,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928105179] [2025-02-08 14:14:32,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:32,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:14:32,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:32,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:14:32,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:14:32,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-02-08 14:14:32,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 93 flow. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:32,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:32,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-02-08 14:14:32,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:32,444 INFO L124 PetriNetUnfolderBase]: 265/461 cut-off events. [2025-02-08 14:14:32,445 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-08 14:14:32,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 461 events. 265/461 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1946 event pairs, 224 based on Foata normal form. 1/305 useless extension candidates. Maximal degree in co-relation 927. Up to 451 conditions per place. [2025-02-08 14:14:32,452 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 22 selfloop transitions, 7 changer transitions 0/32 dead transitions. [2025-02-08 14:14:32,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 147 flow [2025-02-08 14:14:32,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:14:32,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:14:32,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2025-02-08 14:14:32,456 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2025-02-08 14:14:32,456 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 93 flow. Second operand 6 states and 60 transitions. [2025-02-08 14:14:32,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 147 flow [2025-02-08 14:14:32,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:14:32,457 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 100 flow [2025-02-08 14:14:32,458 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2025-02-08 14:14:32,458 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2025-02-08 14:14:32,458 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 100 flow [2025-02-08 14:14:32,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:32,458 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:32,458 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:32,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 14:14:32,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:32,664 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:32,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:32,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2132498639, now seen corresponding path program 1 times [2025-02-08 14:14:32,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:32,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2154490] [2025-02-08 14:14:32,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:32,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:32,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:14:32,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:14:32,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:32,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:32,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:32,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2154490] [2025-02-08 14:14:32,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2154490] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:32,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:14:32,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:14:32,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647555345] [2025-02-08 14:14:32,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:32,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:14:32,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:32,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:14:32,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:14:32,774 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-08 14:14:32,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:32,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:32,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-08 14:14:32,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:32,891 INFO L124 PetriNetUnfolderBase]: 324/570 cut-off events. [2025-02-08 14:14:32,891 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-02-08 14:14:32,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1184 conditions, 570 events. 324/570 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2416 event pairs, 119 based on Foata normal form. 11/407 useless extension candidates. Maximal degree in co-relation 1154. Up to 425 conditions per place. [2025-02-08 14:14:32,897 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 36 selfloop transitions, 2 changer transitions 3/45 dead transitions. [2025-02-08 14:14:32,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 211 flow [2025-02-08 14:14:32,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:14:32,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:14:32,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2025-02-08 14:14:32,899 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2025-02-08 14:14:32,900 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 100 flow. Second operand 3 states and 66 transitions. [2025-02-08 14:14:32,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 211 flow [2025-02-08 14:14:32,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 189 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-02-08 14:14:32,902 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 102 flow [2025-02-08 14:14:32,902 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2025-02-08 14:14:32,904 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2025-02-08 14:14:32,904 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 102 flow [2025-02-08 14:14:32,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:32,904 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:32,904 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 14:14:32,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:14:32,905 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:32,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:32,906 INFO L85 PathProgramCache]: Analyzing trace with hash 2053956163, now seen corresponding path program 1 times [2025-02-08 14:14:32,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:32,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813894402] [2025-02-08 14:14:32,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:32,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:32,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:14:32,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:14:32,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:32,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:33,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:33,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:33,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813894402] [2025-02-08 14:14:33,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813894402] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:14:33,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168247011] [2025-02-08 14:14:33,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:33,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:33,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:14:33,025 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:14:33,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 14:14:33,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:14:33,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:14:33,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:33,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:33,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:14:33,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:14:33,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:33,117 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:14:33,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:33,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168247011] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:14:33,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:14:33,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-08 14:14:33,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235366306] [2025-02-08 14:14:33,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:14:33,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 14:14:33,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:33,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 14:14:33,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 14:14:33,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-02-08 14:14:33,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 102 flow. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:33,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:33,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-02-08 14:14:33,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:33,336 INFO L124 PetriNetUnfolderBase]: 327/582 cut-off events. [2025-02-08 14:14:33,336 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-02-08 14:14:33,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1373 conditions, 582 events. 327/582 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2538 event pairs, 285 based on Foata normal form. 3/408 useless extension candidates. Maximal degree in co-relation 1322. Up to 567 conditions per place. [2025-02-08 14:14:33,340 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 26 selfloop transitions, 13 changer transitions 0/42 dead transitions. [2025-02-08 14:14:33,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 210 flow [2025-02-08 14:14:33,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:14:33,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:14:33,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2025-02-08 14:14:33,349 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.21666666666666667 [2025-02-08 14:14:33,349 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 102 flow. Second operand 10 states and 91 transitions. [2025-02-08 14:14:33,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 210 flow [2025-02-08 14:14:33,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:14:33,351 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 174 flow [2025-02-08 14:14:33,351 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=174, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2025-02-08 14:14:33,352 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2025-02-08 14:14:33,352 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 174 flow [2025-02-08 14:14:33,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:33,352 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:33,352 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:33,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 14:14:33,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:33,556 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:33,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:33,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1888648417, now seen corresponding path program 1 times [2025-02-08 14:14:33,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:33,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010258573] [2025-02-08 14:14:33,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:33,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:33,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:14:33,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:14:33,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:33,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:33,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:33,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:33,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010258573] [2025-02-08 14:14:33,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010258573] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:33,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:14:33,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:14:33,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542621176] [2025-02-08 14:14:33,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:33,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:14:33,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:33,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:14:33,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:14:33,629 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-08 14:14:33,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:33,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:33,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-08 14:14:33,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:33,781 INFO L124 PetriNetUnfolderBase]: 420/727 cut-off events. [2025-02-08 14:14:33,781 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2025-02-08 14:14:33,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1717 conditions, 727 events. 420/727 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2996 event pairs, 197 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 1682. Up to 360 conditions per place. [2025-02-08 14:14:33,786 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 50 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2025-02-08 14:14:33,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 321 flow [2025-02-08 14:14:33,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:14:33,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:14:33,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2025-02-08 14:14:33,788 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2025-02-08 14:14:33,788 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 174 flow. Second operand 3 states and 64 transitions. [2025-02-08 14:14:33,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 321 flow [2025-02-08 14:14:33,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 310 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-02-08 14:14:33,791 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 190 flow [2025-02-08 14:14:33,792 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2025-02-08 14:14:33,792 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2025-02-08 14:14:33,794 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 190 flow [2025-02-08 14:14:33,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:33,794 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:33,795 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:33,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:14:33,795 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:33,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:33,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1888648416, now seen corresponding path program 1 times [2025-02-08 14:14:33,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:33,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848184922] [2025-02-08 14:14:33,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:33,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:33,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:14:33,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:14:33,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:33,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:33,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:33,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:33,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848184922] [2025-02-08 14:14:33,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848184922] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:33,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:14:33,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:14:33,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171499238] [2025-02-08 14:14:33,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:33,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:14:33,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:33,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:14:33,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:14:33,864 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-08 14:14:33,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 44 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:33,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:33,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-08 14:14:33,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:33,988 INFO L124 PetriNetUnfolderBase]: 388/683 cut-off events. [2025-02-08 14:14:33,989 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES. [2025-02-08 14:14:33,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1707 conditions, 683 events. 388/683 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2824 event pairs, 198 based on Foata normal form. 0/506 useless extension candidates. Maximal degree in co-relation 1671. Up to 343 conditions per place. [2025-02-08 14:14:33,993 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 49 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2025-02-08 14:14:33,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 314 flow [2025-02-08 14:14:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:14:33,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:14:33,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2025-02-08 14:14:33,997 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48412698412698413 [2025-02-08 14:14:33,997 INFO L175 Difference]: Start difference. First operand has 49 places, 44 transitions, 190 flow. Second operand 3 states and 61 transitions. [2025-02-08 14:14:33,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 314 flow [2025-02-08 14:14:33,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 55 transitions, 312 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:14:33,999 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 189 flow [2025-02-08 14:14:33,999 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2025-02-08 14:14:34,002 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2025-02-08 14:14:34,003 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 189 flow [2025-02-08 14:14:34,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:34,003 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:34,003 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:34,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:14:34,003 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:34,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:34,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1888648410, now seen corresponding path program 1 times [2025-02-08 14:14:34,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:34,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933765698] [2025-02-08 14:14:34,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:34,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:34,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:14:34,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:14:34,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:34,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:34,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:34,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:34,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933765698] [2025-02-08 14:14:34,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933765698] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:14:34,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71584420] [2025-02-08 14:14:34,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:34,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:34,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:14:34,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:14:34,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 14:14:34,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:14:34,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:14:34,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:34,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:34,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:14:34,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:14:34,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:34,184 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:14:34,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:34,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71584420] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:14:34,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:14:34,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2025-02-08 14:14:34,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415860041] [2025-02-08 14:14:34,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:14:34,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:14:34,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:34,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:14:34,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:14:34,211 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-08 14:14:34,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 189 flow. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:34,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:34,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-08 14:14:34,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:34,589 INFO L124 PetriNetUnfolderBase]: 1179/2014 cut-off events. [2025-02-08 14:14:34,590 INFO L125 PetriNetUnfolderBase]: For 603/603 co-relation queries the response was YES. [2025-02-08 14:14:34,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5066 conditions, 2014 events. 1179/2014 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 9671 event pairs, 257 based on Foata normal form. 17/1616 useless extension candidates. Maximal degree in co-relation 5029. Up to 504 conditions per place. [2025-02-08 14:14:34,605 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 99 selfloop transitions, 14 changer transitions 3/120 dead transitions. [2025-02-08 14:14:34,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 120 transitions, 684 flow [2025-02-08 14:14:34,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:14:34,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:14:34,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 162 transitions. [2025-02-08 14:14:34,606 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5510204081632653 [2025-02-08 14:14:34,606 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 189 flow. Second operand 7 states and 162 transitions. [2025-02-08 14:14:34,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 120 transitions, 684 flow [2025-02-08 14:14:34,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 120 transitions, 674 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:14:34,611 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 334 flow [2025-02-08 14:14:34,611 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=334, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2025-02-08 14:14:34,611 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 20 predicate places. [2025-02-08 14:14:34,611 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 334 flow [2025-02-08 14:14:34,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:34,612 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:34,612 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:34,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 14:14:34,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:34,813 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:34,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:34,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1024172386, now seen corresponding path program 1 times [2025-02-08 14:14:34,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:34,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415105725] [2025-02-08 14:14:34,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:34,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:34,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:14:34,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:14:34,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:34,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:35,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:14:35,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:35,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415105725] [2025-02-08 14:14:35,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415105725] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:35,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:14:35,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:14:35,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762009869] [2025-02-08 14:14:35,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:35,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:14:35,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:35,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:14:35,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:14:35,042 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-08 14:14:35,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 334 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:35,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:35,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-08 14:14:35,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:35,335 INFO L124 PetriNetUnfolderBase]: 1246/2150 cut-off events. [2025-02-08 14:14:35,335 INFO L125 PetriNetUnfolderBase]: For 2944/2944 co-relation queries the response was YES. [2025-02-08 14:14:35,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6198 conditions, 2150 events. 1246/2150 cut-off events. For 2944/2944 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 10756 event pairs, 1095 based on Foata normal form. 12/1879 useless extension candidates. Maximal degree in co-relation 6156. Up to 2003 conditions per place. [2025-02-08 14:14:35,350 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 47 selfloop transitions, 2 changer transitions 14/67 dead transitions. [2025-02-08 14:14:35,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 67 transitions, 490 flow [2025-02-08 14:14:35,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:14:35,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:14:35,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2025-02-08 14:14:35,352 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2025-02-08 14:14:35,352 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 334 flow. Second operand 4 states and 70 transitions. [2025-02-08 14:14:35,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 67 transitions, 490 flow [2025-02-08 14:14:35,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 67 transitions, 490 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:14:35,360 INFO L231 Difference]: Finished difference. Result has 64 places, 53 transitions, 337 flow [2025-02-08 14:14:35,360 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=337, PETRI_PLACES=64, PETRI_TRANSITIONS=53} [2025-02-08 14:14:35,361 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 24 predicate places. [2025-02-08 14:14:35,361 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 53 transitions, 337 flow [2025-02-08 14:14:35,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:35,361 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:35,361 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-08 14:14:35,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:14:35,361 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:35,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:35,362 INFO L85 PathProgramCache]: Analyzing trace with hash 887784858, now seen corresponding path program 2 times [2025-02-08 14:14:35,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:35,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439944279] [2025-02-08 14:14:35,362 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:14:35,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:35,372 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:14:35,378 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:14:35,379 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:14:35,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:35,410 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:14:35,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:35,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439944279] [2025-02-08 14:14:35,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439944279] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:14:35,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302847312] [2025-02-08 14:14:35,411 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:14:35,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:35,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:14:35,413 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) [2025-02-08 14:14:35,415 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 [2025-02-08 14:14:35,465 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:14:35,474 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:14:35,474 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:14:35,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:35,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:14:35,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:14:35,510 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:14:35,511 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:14:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:14:35,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302847312] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:14:35,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:14:35,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-02-08 14:14:35,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635475395] [2025-02-08 14:14:35,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:14:35,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:14:35,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:35,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:14:35,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:14:35,549 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-02-08 14:14:35,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 53 transitions, 337 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:35,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:35,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-02-08 14:14:35,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:35,792 INFO L124 PetriNetUnfolderBase]: 1178/2012 cut-off events. [2025-02-08 14:14:35,792 INFO L125 PetriNetUnfolderBase]: For 2929/2929 co-relation queries the response was YES. [2025-02-08 14:14:35,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5926 conditions, 2012 events. 1178/2012 cut-off events. For 2929/2929 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 10078 event pairs, 1027 based on Foata normal form. 1/1753 useless extension candidates. Maximal degree in co-relation 5893. Up to 1994 conditions per place. [2025-02-08 14:14:35,804 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 34 selfloop transitions, 15 changer transitions 0/52 dead transitions. [2025-02-08 14:14:35,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 425 flow [2025-02-08 14:14:35,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:14:35,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:14:35,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2025-02-08 14:14:35,806 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.27380952380952384 [2025-02-08 14:14:35,806 INFO L175 Difference]: Start difference. First operand has 64 places, 53 transitions, 337 flow. Second operand 4 states and 46 transitions. [2025-02-08 14:14:35,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 425 flow [2025-02-08 14:14:35,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 52 transitions, 409 flow, removed 2 selfloop flow, removed 7 redundant places. [2025-02-08 14:14:35,811 INFO L231 Difference]: Finished difference. Result has 58 places, 52 transitions, 341 flow [2025-02-08 14:14:35,811 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=341, PETRI_PLACES=58, PETRI_TRANSITIONS=52} [2025-02-08 14:14:35,812 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 18 predicate places. [2025-02-08 14:14:35,812 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 52 transitions, 341 flow [2025-02-08 14:14:35,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:35,812 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:35,812 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:35,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 14:14:36,016 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,SelfDestructingSolverStorable8 [2025-02-08 14:14:36,017 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:36,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:36,017 INFO L85 PathProgramCache]: Analyzing trace with hash -427935563, now seen corresponding path program 1 times [2025-02-08 14:14:36,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:36,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428988889] [2025-02-08 14:14:36,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:36,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:36,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 14:14:36,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 14:14:36,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:36,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:36,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:14:36,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:36,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428988889] [2025-02-08 14:14:36,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428988889] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:14:36,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249957604] [2025-02-08 14:14:36,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:36,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:36,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:14:36,105 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) [2025-02-08 14:14:36,106 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 [2025-02-08 14:14:36,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 14:14:36,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 14:14:36,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:36,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:36,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:14:36,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:14:36,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:14:36,250 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:14:36,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249957604] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:36,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:14:36,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2025-02-08 14:14:36,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649286272] [2025-02-08 14:14:36,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:36,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:14:36,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:36,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:14:36,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:14:36,252 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-08 14:14:36,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 52 transitions, 341 flow. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 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) [2025-02-08 14:14:36,252 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:36,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-08 14:14:36,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:36,552 INFO L124 PetriNetUnfolderBase]: 1460/2513 cut-off events. [2025-02-08 14:14:36,552 INFO L125 PetriNetUnfolderBase]: For 4469/4469 co-relation queries the response was YES. [2025-02-08 14:14:36,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7253 conditions, 2513 events. 1460/2513 cut-off events. For 4469/4469 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 12838 event pairs, 221 based on Foata normal form. 105/2282 useless extension candidates. Maximal degree in co-relation 7169. Up to 1244 conditions per place. [2025-02-08 14:14:36,569 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 83 selfloop transitions, 12 changer transitions 3/101 dead transitions. [2025-02-08 14:14:36,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 101 transitions, 729 flow [2025-02-08 14:14:36,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:14:36,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:14:36,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 119 transitions. [2025-02-08 14:14:36,572 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2025-02-08 14:14:36,572 INFO L175 Difference]: Start difference. First operand has 58 places, 52 transitions, 341 flow. Second operand 6 states and 119 transitions. [2025-02-08 14:14:36,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 101 transitions, 729 flow [2025-02-08 14:14:36,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 101 transitions, 699 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:14:36,580 INFO L231 Difference]: Finished difference. Result has 63 places, 59 transitions, 457 flow [2025-02-08 14:14:36,581 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=457, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2025-02-08 14:14:36,581 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 23 predicate places. [2025-02-08 14:14:36,581 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 457 flow [2025-02-08 14:14:36,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 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) [2025-02-08 14:14:36,581 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:36,584 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:36,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 14:14:36,785 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,SelfDestructingSolverStorable9 [2025-02-08 14:14:36,785 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:36,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:36,786 INFO L85 PathProgramCache]: Analyzing trace with hash -273781554, now seen corresponding path program 1 times [2025-02-08 14:14:36,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:36,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752687874] [2025-02-08 14:14:36,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:36,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:36,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 14:14:36,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 14:14:36,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:36,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:36,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:14:36,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:36,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752687874] [2025-02-08 14:14:36,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752687874] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:36,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:14:36,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:14:36,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587238488] [2025-02-08 14:14:36,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:36,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:14:36,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:36,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:14:36,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:14:36,853 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-08 14:14:36,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 457 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:36,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:36,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-08 14:14:36,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:37,104 INFO L124 PetriNetUnfolderBase]: 1329/2292 cut-off events. [2025-02-08 14:14:37,104 INFO L125 PetriNetUnfolderBase]: For 5986/5986 co-relation queries the response was YES. [2025-02-08 14:14:37,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7048 conditions, 2292 events. 1329/2292 cut-off events. For 5986/5986 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 11632 event pairs, 351 based on Foata normal form. 90/2062 useless extension candidates. Maximal degree in co-relation 6975. Up to 1521 conditions per place. [2025-02-08 14:14:37,121 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 73 selfloop transitions, 5 changer transitions 3/84 dead transitions. [2025-02-08 14:14:37,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 84 transitions, 694 flow [2025-02-08 14:14:37,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:14:37,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:14:37,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 86 transitions. [2025-02-08 14:14:37,122 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4095238095238095 [2025-02-08 14:14:37,122 INFO L175 Difference]: Start difference. First operand has 63 places, 59 transitions, 457 flow. Second operand 5 states and 86 transitions. [2025-02-08 14:14:37,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 84 transitions, 694 flow [2025-02-08 14:14:37,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 84 transitions, 646 flow, removed 21 selfloop flow, removed 2 redundant places. [2025-02-08 14:14:37,131 INFO L231 Difference]: Finished difference. Result has 64 places, 58 transitions, 413 flow [2025-02-08 14:14:37,131 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=413, PETRI_PLACES=64, PETRI_TRANSITIONS=58} [2025-02-08 14:14:37,132 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 24 predicate places. [2025-02-08 14:14:37,133 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 58 transitions, 413 flow [2025-02-08 14:14:37,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:37,134 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:37,134 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:37,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:14:37,134 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:37,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:37,135 INFO L85 PathProgramCache]: Analyzing trace with hash -82740538, now seen corresponding path program 1 times [2025-02-08 14:14:37,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:37,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926712972] [2025-02-08 14:14:37,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:37,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:37,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 14:14:37,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 14:14:37,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:37,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:37,186 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:14:37,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:37,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926712972] [2025-02-08 14:14:37,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926712972] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:37,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:14:37,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:14:37,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501514336] [2025-02-08 14:14:37,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:37,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:14:37,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:37,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:14:37,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:14:37,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-08 14:14:37,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 58 transitions, 413 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:37,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:37,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-08 14:14:37,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:37,368 INFO L124 PetriNetUnfolderBase]: 1278/2227 cut-off events. [2025-02-08 14:14:37,368 INFO L125 PetriNetUnfolderBase]: For 5097/5097 co-relation queries the response was YES. [2025-02-08 14:14:37,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6588 conditions, 2227 events. 1278/2227 cut-off events. For 5097/5097 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 11795 event pairs, 1138 based on Foata normal form. 50/1957 useless extension candidates. Maximal degree in co-relation 6515. Up to 2219 conditions per place. [2025-02-08 14:14:37,387 INFO L140 encePairwiseOnDemand]: 40/42 looper letters, 50 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2025-02-08 14:14:37,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 54 transitions, 472 flow [2025-02-08 14:14:37,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:14:37,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:14:37,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 45 transitions. [2025-02-08 14:14:37,388 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2025-02-08 14:14:37,388 INFO L175 Difference]: Start difference. First operand has 64 places, 58 transitions, 413 flow. Second operand 3 states and 45 transitions. [2025-02-08 14:14:37,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 54 transitions, 472 flow [2025-02-08 14:14:37,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 459 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-02-08 14:14:37,399 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 359 flow [2025-02-08 14:14:37,400 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=359, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2025-02-08 14:14:37,401 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 20 predicate places. [2025-02-08 14:14:37,402 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 359 flow [2025-02-08 14:14:37,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:37,402 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:37,402 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:37,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 14:14:37,402 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:37,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:37,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1164813029, now seen corresponding path program 2 times [2025-02-08 14:14:37,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:37,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137017223] [2025-02-08 14:14:37,404 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:14:37,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:37,412 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-02-08 14:14:37,445 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 14:14:37,446 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:14:37,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:37,554 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:14:37,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:37,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137017223] [2025-02-08 14:14:37,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137017223] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:14:37,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923186467] [2025-02-08 14:14:37,555 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:14:37,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:37,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:14:37,557 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) [2025-02-08 14:14:37,560 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 [2025-02-08 14:14:37,612 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-02-08 14:14:37,633 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 14:14:37,633 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:14:37,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:37,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 14:14:37,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:14:37,732 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:14:37,732 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:14:37,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:14:37,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923186467] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:14:37,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:14:37,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 11 [2025-02-08 14:14:37,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100949406] [2025-02-08 14:14:37,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:14:37,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 14:14:37,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:37,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 14:14:37,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=82, Unknown=0, NotChecked=0, Total=156 [2025-02-08 14:14:37,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-08 14:14:37,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 359 flow. Second operand has 13 states, 13 states have (on average 11.384615384615385) internal successors, (148), 13 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:37,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:37,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-08 14:14:37,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:38,423 INFO L124 PetriNetUnfolderBase]: 3074/5291 cut-off events. [2025-02-08 14:14:38,424 INFO L125 PetriNetUnfolderBase]: For 11463/11463 co-relation queries the response was YES. [2025-02-08 14:14:38,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14661 conditions, 5291 events. 3074/5291 cut-off events. For 11463/11463 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 28202 event pairs, 764 based on Foata normal form. 343/4842 useless extension candidates. Maximal degree in co-relation 14640. Up to 1310 conditions per place. [2025-02-08 14:14:38,452 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 133 selfloop transitions, 29 changer transitions 24/189 dead transitions. [2025-02-08 14:14:38,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 189 transitions, 1382 flow [2025-02-08 14:14:38,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:14:38,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:14:38,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 213 transitions. [2025-02-08 14:14:38,454 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5071428571428571 [2025-02-08 14:14:38,454 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 359 flow. Second operand 10 states and 213 transitions. [2025-02-08 14:14:38,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 189 transitions, 1382 flow [2025-02-08 14:14:38,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 189 transitions, 1381 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:14:38,469 INFO L231 Difference]: Finished difference. Result has 74 places, 77 transitions, 728 flow [2025-02-08 14:14:38,469 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=728, PETRI_PLACES=74, PETRI_TRANSITIONS=77} [2025-02-08 14:14:38,470 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 34 predicate places. [2025-02-08 14:14:38,470 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 77 transitions, 728 flow [2025-02-08 14:14:38,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.384615384615385) internal successors, (148), 13 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:38,471 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:38,471 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:38,478 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 [2025-02-08 14:14:38,671 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,SelfDestructingSolverStorable12 [2025-02-08 14:14:38,671 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:38,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:38,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1950766515, now seen corresponding path program 1 times [2025-02-08 14:14:38,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:38,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951651484] [2025-02-08 14:14:38,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:38,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:38,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 14:14:38,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 14:14:38,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:38,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:38,808 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:14:38,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:38,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951651484] [2025-02-08 14:14:38,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951651484] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:14:38,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980977452] [2025-02-08 14:14:38,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:38,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:38,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:14:38,811 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) [2025-02-08 14:14:38,814 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 [2025-02-08 14:14:38,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 14:14:38,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 14:14:38,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:38,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:38,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-08 14:14:38,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:14:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:14:38,929 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:14:39,003 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:14:39,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980977452] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:14:39,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:14:39,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-08 14:14:39,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246321240] [2025-02-08 14:14:39,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:14:39,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 14:14:39,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:39,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 14:14:39,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-02-08 14:14:39,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-08 14:14:39,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 77 transitions, 728 flow. Second operand has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 13 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:39,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:39,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-08 14:14:39,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:40,178 INFO L124 PetriNetUnfolderBase]: 6676/11442 cut-off events. [2025-02-08 14:14:40,179 INFO L125 PetriNetUnfolderBase]: For 52462/52462 co-relation queries the response was YES. [2025-02-08 14:14:40,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34997 conditions, 11442 events. 6676/11442 cut-off events. For 52462/52462 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 71145 event pairs, 1759 based on Foata normal form. 538/10275 useless extension candidates. Maximal degree in co-relation 34969. Up to 2583 conditions per place. [2025-02-08 14:14:40,234 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 177 selfloop transitions, 96 changer transitions 3/279 dead transitions. [2025-02-08 14:14:40,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 279 transitions, 2646 flow [2025-02-08 14:14:40,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 14:14:40,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 14:14:40,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 287 transitions. [2025-02-08 14:14:40,236 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2025-02-08 14:14:40,236 INFO L175 Difference]: Start difference. First operand has 74 places, 77 transitions, 728 flow. Second operand 12 states and 287 transitions. [2025-02-08 14:14:40,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 279 transitions, 2646 flow [2025-02-08 14:14:40,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 279 transitions, 2592 flow, removed 16 selfloop flow, removed 3 redundant places. [2025-02-08 14:14:40,284 INFO L231 Difference]: Finished difference. Result has 92 places, 140 transitions, 1858 flow [2025-02-08 14:14:40,284 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1858, PETRI_PLACES=92, PETRI_TRANSITIONS=140} [2025-02-08 14:14:40,284 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 52 predicate places. [2025-02-08 14:14:40,285 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 140 transitions, 1858 flow [2025-02-08 14:14:40,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 13 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:40,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:40,285 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:40,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 14:14:40,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:40,486 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:40,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:40,487 INFO L85 PathProgramCache]: Analyzing trace with hash 714071672, now seen corresponding path program 1 times [2025-02-08 14:14:40,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:40,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144202647] [2025-02-08 14:14:40,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:40,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:40,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-08 14:14:40,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-08 14:14:40,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:40,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:40,587 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-08 14:14:40,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:40,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144202647] [2025-02-08 14:14:40,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144202647] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:14:40,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883399235] [2025-02-08 14:14:40,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:40,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:40,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:14:40,590 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) [2025-02-08 14:14:40,592 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 [2025-02-08 14:14:40,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-08 14:14:40,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-08 14:14:40,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:40,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:40,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 14:14:40,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:14:40,842 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-08 14:14:40,843 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:14:41,057 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-08 14:14:41,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883399235] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:14:41,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:14:41,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 5, 5] total 12 [2025-02-08 14:14:41,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479855423] [2025-02-08 14:14:41,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:14:41,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-08 14:14:41,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:41,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-08 14:14:41,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2025-02-08 14:14:41,078 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-02-08 14:14:41,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 140 transitions, 1858 flow. Second operand has 14 states, 14 states have (on average 9.071428571428571) internal successors, (127), 14 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:41,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:41,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-02-08 14:14:41,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:42,773 INFO L124 PetriNetUnfolderBase]: 9844/16989 cut-off events. [2025-02-08 14:14:42,773 INFO L125 PetriNetUnfolderBase]: For 86421/86421 co-relation queries the response was YES. [2025-02-08 14:14:42,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54919 conditions, 16989 events. 9844/16989 cut-off events. For 86421/86421 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 116008 event pairs, 4639 based on Foata normal form. 434/14853 useless extension candidates. Maximal degree in co-relation 54882. Up to 7761 conditions per place. [2025-02-08 14:14:42,856 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 188 selfloop transitions, 54 changer transitions 8/253 dead transitions. [2025-02-08 14:14:42,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 253 transitions, 3574 flow [2025-02-08 14:14:42,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:14:42,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:14:42,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 139 transitions. [2025-02-08 14:14:42,858 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.33095238095238094 [2025-02-08 14:14:42,858 INFO L175 Difference]: Start difference. First operand has 92 places, 140 transitions, 1858 flow. Second operand 10 states and 139 transitions. [2025-02-08 14:14:42,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 253 transitions, 3574 flow [2025-02-08 14:14:42,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 253 transitions, 3318 flow, removed 128 selfloop flow, removed 0 redundant places. [2025-02-08 14:14:42,984 INFO L231 Difference]: Finished difference. Result has 105 places, 163 transitions, 2388 flow [2025-02-08 14:14:42,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1758, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2388, PETRI_PLACES=105, PETRI_TRANSITIONS=163} [2025-02-08 14:14:42,985 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 65 predicate places. [2025-02-08 14:14:42,986 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 163 transitions, 2388 flow [2025-02-08 14:14:42,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.071428571428571) internal successors, (127), 14 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:42,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:42,986 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:42,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 14:14:43,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-08 14:14:43,187 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:43,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:43,187 INFO L85 PathProgramCache]: Analyzing trace with hash -359733733, now seen corresponding path program 3 times [2025-02-08 14:14:43,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:43,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140736659] [2025-02-08 14:14:43,187 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:14:43,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:43,206 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 34 statements into 6 equivalence classes. [2025-02-08 14:14:43,219 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 34 statements. [2025-02-08 14:14:43,219 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 14:14:43,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:43,353 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 14:14:43,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:43,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140736659] [2025-02-08 14:14:43,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140736659] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:14:43,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025089800] [2025-02-08 14:14:43,354 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:14:43,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:43,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:14:43,356 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:14:43,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 14:14:43,414 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 34 statements into 6 equivalence classes. [2025-02-08 14:14:43,431 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 34 statements. [2025-02-08 14:14:43,431 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 14:14:43,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:43,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:14:43,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:14:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-02-08 14:14:43,487 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:14:43,536 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-02-08 14:14:43,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025089800] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:14:43,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:14:43,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 7 [2025-02-08 14:14:43,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907377996] [2025-02-08 14:14:43,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:14:43,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 14:14:43,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:43,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 14:14:43,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-08 14:14:43,547 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-02-08 14:14:43,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 163 transitions, 2388 flow. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:43,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:43,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-02-08 14:14:43,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:45,095 INFO L124 PetriNetUnfolderBase]: 9059/15669 cut-off events. [2025-02-08 14:14:45,095 INFO L125 PetriNetUnfolderBase]: For 74124/74124 co-relation queries the response was YES. [2025-02-08 14:14:45,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46217 conditions, 15669 events. 9059/15669 cut-off events. For 74124/74124 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 107163 event pairs, 5624 based on Foata normal form. 508/13707 useless extension candidates. Maximal degree in co-relation 46174. Up to 11087 conditions per place. [2025-02-08 14:14:45,155 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 146 selfloop transitions, 5 changer transitions 58/212 dead transitions. [2025-02-08 14:14:45,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 212 transitions, 3104 flow [2025-02-08 14:14:45,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:14:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:14:45,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 97 transitions. [2025-02-08 14:14:45,156 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.28869047619047616 [2025-02-08 14:14:45,156 INFO L175 Difference]: Start difference. First operand has 105 places, 163 transitions, 2388 flow. Second operand 8 states and 97 transitions. [2025-02-08 14:14:45,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 212 transitions, 3104 flow [2025-02-08 14:14:45,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 212 transitions, 2692 flow, removed 138 selfloop flow, removed 9 redundant places. [2025-02-08 14:14:45,270 INFO L231 Difference]: Finished difference. Result has 100 places, 145 transitions, 1736 flow [2025-02-08 14:14:45,270 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1903, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1736, PETRI_PLACES=100, PETRI_TRANSITIONS=145} [2025-02-08 14:14:45,270 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 60 predicate places. [2025-02-08 14:14:45,271 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 145 transitions, 1736 flow [2025-02-08 14:14:45,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:45,271 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:45,271 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-08 14:14:45,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 14:14:45,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:45,471 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:45,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:45,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1268252534, now seen corresponding path program 2 times [2025-02-08 14:14:45,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:45,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75105458] [2025-02-08 14:14:45,472 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:14:45,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:45,489 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 43 statements into 2 equivalence classes. [2025-02-08 14:14:45,496 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 43 statements. [2025-02-08 14:14:45,497 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:14:45,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:45,555 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2025-02-08 14:14:45,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:45,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75105458] [2025-02-08 14:14:45,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75105458] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:14:45,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:14:45,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:14:45,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138000890] [2025-02-08 14:14:45,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:14:45,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:14:45,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:45,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:14:45,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:14:45,558 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-08 14:14:45,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 145 transitions, 1736 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:45,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:45,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-08 14:14:45,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:46,369 INFO L124 PetriNetUnfolderBase]: 3700/6265 cut-off events. [2025-02-08 14:14:46,370 INFO L125 PetriNetUnfolderBase]: For 21015/21015 co-relation queries the response was YES. [2025-02-08 14:14:46,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19739 conditions, 6265 events. 3700/6265 cut-off events. For 21015/21015 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 34927 event pairs, 1660 based on Foata normal form. 12/5778 useless extension candidates. Maximal degree in co-relation 19709. Up to 5352 conditions per place. [2025-02-08 14:14:46,409 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 141 selfloop transitions, 11 changer transitions 2/157 dead transitions. [2025-02-08 14:14:46,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 157 transitions, 2079 flow [2025-02-08 14:14:46,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:14:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:14:46,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2025-02-08 14:14:46,410 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2025-02-08 14:14:46,410 INFO L175 Difference]: Start difference. First operand has 100 places, 145 transitions, 1736 flow. Second operand 3 states and 48 transitions. [2025-02-08 14:14:46,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 157 transitions, 2079 flow [2025-02-08 14:14:46,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 157 transitions, 2006 flow, removed 21 selfloop flow, removed 7 redundant places. [2025-02-08 14:14:46,452 INFO L231 Difference]: Finished difference. Result has 89 places, 144 transitions, 1657 flow [2025-02-08 14:14:46,452 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1635, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1657, PETRI_PLACES=89, PETRI_TRANSITIONS=144} [2025-02-08 14:14:46,453 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 49 predicate places. [2025-02-08 14:14:46,453 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 144 transitions, 1657 flow [2025-02-08 14:14:46,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:46,453 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:46,453 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:46,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 14:14:46,453 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:46,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:46,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1647362506, now seen corresponding path program 1 times [2025-02-08 14:14:46,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:46,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38005221] [2025-02-08 14:14:46,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:46,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:46,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-08 14:14:46,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-08 14:14:46,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:46,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:46,798 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:14:46,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:46,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38005221] [2025-02-08 14:14:46,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38005221] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:14:46,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712750992] [2025-02-08 14:14:46,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:14:46,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:46,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:14:46,802 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:14:46,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 14:14:46,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-08 14:14:46,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-08 14:14:46,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:14:46,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:46,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 14:14:46,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:14:47,054 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:14:47,055 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:14:47,274 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:14:47,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712750992] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:14:47,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:14:47,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2025-02-08 14:14:47,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411751000] [2025-02-08 14:14:47,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:14:47,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 14:14:47,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:47,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 14:14:47,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2025-02-08 14:14:47,276 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-02-08 14:14:47,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 144 transitions, 1657 flow. Second operand has 23 states, 23 states have (on average 10.956521739130435) internal successors, (252), 23 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:47,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:47,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-02-08 14:14:47,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:48,778 INFO L124 PetriNetUnfolderBase]: 7432/12517 cut-off events. [2025-02-08 14:14:48,778 INFO L125 PetriNetUnfolderBase]: For 85383/85383 co-relation queries the response was YES. [2025-02-08 14:14:48,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38338 conditions, 12517 events. 7432/12517 cut-off events. For 85383/85383 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 69741 event pairs, 1165 based on Foata normal form. 328/11854 useless extension candidates. Maximal degree in co-relation 38309. Up to 2470 conditions per place. [2025-02-08 14:14:48,882 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 216 selfloop transitions, 241 changer transitions 0/460 dead transitions. [2025-02-08 14:14:48,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 460 transitions, 4683 flow [2025-02-08 14:14:48,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-08 14:14:48,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-08 14:14:48,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 411 transitions. [2025-02-08 14:14:48,884 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4448051948051948 [2025-02-08 14:14:48,885 INFO L175 Difference]: Start difference. First operand has 89 places, 144 transitions, 1657 flow. Second operand 22 states and 411 transitions. [2025-02-08 14:14:48,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 460 transitions, 4683 flow [2025-02-08 14:14:48,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 460 transitions, 4641 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:14:48,947 INFO L231 Difference]: Finished difference. Result has 128 places, 280 transitions, 4371 flow [2025-02-08 14:14:48,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1635, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=4371, PETRI_PLACES=128, PETRI_TRANSITIONS=280} [2025-02-08 14:14:48,948 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 88 predicate places. [2025-02-08 14:14:48,948 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 280 transitions, 4371 flow [2025-02-08 14:14:48,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.956521739130435) internal successors, (252), 23 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:48,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:14:48,949 INFO L206 CegarLoopForPetriNet]: trace histogram [21, 21, 20, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:48,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-08 14:14:49,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-08 14:14:49,150 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-02-08 14:14:49,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:14:49,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1645110782, now seen corresponding path program 2 times [2025-02-08 14:14:49,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:14:49,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367496611] [2025-02-08 14:14:49,151 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:14:49,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:14:49,177 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-02-08 14:14:49,212 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-02-08 14:14:49,212 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:14:49,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:49,389 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2025-02-08 14:14:49,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:14:49,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367496611] [2025-02-08 14:14:49,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367496611] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:14:49,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319803100] [2025-02-08 14:14:49,390 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:14:49,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:49,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:14:49,393 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:14:49,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 14:14:49,486 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-02-08 14:14:49,548 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-02-08 14:14:49,548 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:14:49,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:14:49,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 14:14:49,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:14:49,911 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2025-02-08 14:14:49,911 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:14:50,623 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2025-02-08 14:14:50,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319803100] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:14:50,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:14:50,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 7, 7] total 16 [2025-02-08 14:14:50,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898756760] [2025-02-08 14:14:50,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:14:50,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 14:14:50,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:14:50,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 14:14:50,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=195, Unknown=0, NotChecked=0, Total=306 [2025-02-08 14:14:50,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-02-08 14:14:50,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 280 transitions, 4371 flow. Second operand has 18 states, 18 states have (on average 8.055555555555555) internal successors, (145), 18 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:50,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:14:50,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-02-08 14:14:50,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:14:53,641 INFO L124 PetriNetUnfolderBase]: 14800/24915 cut-off events. [2025-02-08 14:14:53,642 INFO L125 PetriNetUnfolderBase]: For 128305/128305 co-relation queries the response was YES. [2025-02-08 14:14:53,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85436 conditions, 24915 events. 14800/24915 cut-off events. For 128305/128305 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 164183 event pairs, 6628 based on Foata normal form. 40/22984 useless extension candidates. Maximal degree in co-relation 85387. Up to 10743 conditions per place. [2025-02-08 14:14:53,832 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 0 selfloop transitions, 0 changer transitions 581/581 dead transitions. [2025-02-08 14:14:53,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 581 transitions, 9932 flow [2025-02-08 14:14:53,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 14:14:53,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 14:14:53,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 110 transitions. [2025-02-08 14:14:53,833 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2025-02-08 14:14:53,833 INFO L175 Difference]: Start difference. First operand has 128 places, 280 transitions, 4371 flow. Second operand 11 states and 110 transitions. [2025-02-08 14:14:53,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 581 transitions, 9932 flow [2025-02-08 14:14:54,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 581 transitions, 6729 flow, removed 650 selfloop flow, removed 34 redundant places. [2025-02-08 14:14:54,100 INFO L231 Difference]: Finished difference. Result has 102 places, 0 transitions, 0 flow [2025-02-08 14:14:54,100 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2721, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=102, PETRI_TRANSITIONS=0} [2025-02-08 14:14:54,101 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 62 predicate places. [2025-02-08 14:14:54,101 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 0 transitions, 0 flow [2025-02-08 14:14:54,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.055555555555555) internal successors, (145), 18 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:14:54,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2025-02-08 14:14:54,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2025-02-08 14:14:54,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2025-02-08 14:14:54,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2025-02-08 14:14:54,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2025-02-08 14:14:54,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2025-02-08 14:14:54,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2025-02-08 14:14:54,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2025-02-08 14:14:54,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2025-02-08 14:14:54,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2025-02-08 14:14:54,104 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2025-02-08 14:14:54,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 14:14:54,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:14:54,305 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:14:54,311 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:14:54,311 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:14:54,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:14:54 BasicIcfg [2025-02-08 14:14:54,319 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:14:54,319 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:14:54,320 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:14:54,320 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:14:54,321 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:14:31" (3/4) ... [2025-02-08 14:14:54,322 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:14:54,324 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 14:14:54,324 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 14:14:54,331 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2025-02-08 14:14:54,332 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2025-02-08 14:14:54,332 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-08 14:14:54,332 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 14:14:54,411 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:14:54,412 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:14:54,412 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:14:54,413 INFO L158 Benchmark]: Toolchain (without parser) took 24169.31ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 122.3MB in the beginning and 874.0MB in the end (delta: -751.7MB). Peak memory consumption was 763.2MB. Max. memory is 16.1GB. [2025-02-08 14:14:54,413 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:14:54,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.14ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 111.0MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:14:54,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.61ms. Allocated memory is still 167.8MB. Free memory was 111.0MB in the beginning and 108.5MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:14:54,416 INFO L158 Benchmark]: Boogie Preprocessor took 34.33ms. Allocated memory is still 167.8MB. Free memory was 108.5MB in the beginning and 107.5MB in the end (delta: 975.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:14:54,416 INFO L158 Benchmark]: IcfgBuilder took 707.55ms. Allocated memory is still 167.8MB. Free memory was 107.5MB in the beginning and 61.7MB in the end (delta: 45.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-08 14:14:54,417 INFO L158 Benchmark]: TraceAbstraction took 23104.10ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 60.7MB in the beginning and 880.5MB in the end (delta: -819.7MB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2025-02-08 14:14:54,417 INFO L158 Benchmark]: Witness Printer took 92.84ms. Allocated memory is still 1.7GB. Free memory was 880.5MB in the beginning and 874.0MB in the end (delta: 6.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:14:54,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 192.14ms. Allocated memory is still 167.8MB. Free memory was 122.3MB in the beginning and 111.0MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.61ms. Allocated memory is still 167.8MB. Free memory was 111.0MB in the beginning and 108.5MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.33ms. Allocated memory is still 167.8MB. Free memory was 108.5MB in the beginning and 107.5MB in the end (delta: 975.6kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 707.55ms. Allocated memory is still 167.8MB. Free memory was 107.5MB in the beginning and 61.7MB in the end (delta: 45.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 23104.10ms. Allocated memory was 167.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 60.7MB in the beginning and 880.5MB in the end (delta: -819.7MB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * Witness Printer took 92.84ms. Allocated memory is still 1.7GB. Free memory was 880.5MB in the beginning and 874.0MB in the end (delta: 6.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: 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, 64 locations, 28 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: 23.0s, OverallIterations: 19, TraceHistogramMax: 21, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 14.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1225 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1205 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 115 mSDsCounter, 146 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2172 IncrementalHoareTripleChecker+Invalid, 2318 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 146 mSolverCounterUnsat, 2 mSDtfsCounter, 2172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 641 GetRequests, 490 SyntacticMatches, 2 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4371occurred in iteration=18, InterpolantAutomatonStates: 134, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 726 NumberOfCodeBlocks, 636 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 960 ConstructedInterpolants, 0 QuantifiedInterpolants, 5150 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1744 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 39 InterpolantComputations, 10 PerfectInterpolantSequences, 1345/1738 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:14:54,437 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