./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i --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/goblint-regression/28-race_reach_77-tricky_address4_racing.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:06:45,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:06:45,320 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:06:45,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:06:45,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:06:45,352 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:06:45,352 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:06:45,352 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:06:45,352 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:06:45,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:06:45,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:06:45,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:06:45,353 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:06:45,354 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:06:45,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:06:45,354 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:06:45,354 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:06:45,354 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:06:45,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:06:45,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:06:45,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:06:45,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:06:45,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:06:45,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:06:45,354 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:06:45,354 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:06:45,354 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:06:45,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:06:45,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:06:45,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:06:45,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:06:45,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:06:45,356 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 -> dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe [2025-02-08 14:06:45,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:06:45,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:06:45,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:06:45,604 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:06:45,604 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:06:45,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2025-02-08 14:06:46,796 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/df3d346b3/1738f1742bac408992398eb226839049/FLAGe57d9d64f [2025-02-08 14:06:47,071 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:06:47,072 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2025-02-08 14:06:47,082 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/df3d346b3/1738f1742bac408992398eb226839049/FLAGe57d9d64f [2025-02-08 14:06:47,106 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/df3d346b3/1738f1742bac408992398eb226839049 [2025-02-08 14:06:47,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:06:47,109 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:06:47,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:06:47,111 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:06:47,114 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:06:47,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a6aa27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47, skipping insertion in model container [2025-02-08 14:06:47,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,147 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:06:47,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:06:47,522 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:06:47,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:06:47,622 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:06:47,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47 WrapperNode [2025-02-08 14:06:47,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:06:47,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:06:47,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:06:47,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:06:47,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,660 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 276 [2025-02-08 14:06:47,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:06:47,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:06:47,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:06:47,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:06:47,667 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,670 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,680 INFO L175 MemorySlicer]: Split 79 memory accesses to 4 slices as follows [70, 2, 2, 5]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [60, 2, 0, 5]. The 5 writes are split as follows [4, 0, 1, 0]. [2025-02-08 14:06:47,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,687 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,688 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:06:47,693 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:06:47,693 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:06:47,693 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:06:47,694 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47" (1/1) ... [2025-02-08 14:06:47,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:06:47,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:06:47,718 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 14:06:47,721 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 14:06:47,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 14:06:47,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 14:06:47,737 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 14:06:47,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:06:47,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 14:06:47,738 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 14:06:47,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:06:47,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:06:47,740 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 14:06:47,834 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:06:47,835 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:06:48,137 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L954: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-08 14:06:48,137 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L954-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-02-08 14:06:48,220 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:06:48,220 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:06:48,498 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:06:48,498 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:06:48,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:06:48 BoogieIcfgContainer [2025-02-08 14:06:48,499 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:06:48,500 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:06:48,500 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:06:48,503 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:06:48,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:06:47" (1/3) ... [2025-02-08 14:06:48,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca6c5c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:06:48, skipping insertion in model container [2025-02-08 14:06:48,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:06:47" (2/3) ... [2025-02-08 14:06:48,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca6c5c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:06:48, skipping insertion in model container [2025-02-08 14:06:48,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:06:48" (3/3) ... [2025-02-08 14:06:48,505 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_77-tricky_address4_racing.i [2025-02-08 14:06:48,523 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:06:48,524 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_77-tricky_address4_racing.i that has 2 procedures, 97 locations, 1 initial locations, 13 loop locations, and 16 error locations. [2025-02-08 14:06:48,524 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:06:48,564 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 14:06:48,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 121 transitions, 249 flow [2025-02-08 14:06:48,625 INFO L124 PetriNetUnfolderBase]: 35/171 cut-off events. [2025-02-08 14:06:48,627 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:06:48,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 171 events. 35/171 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 676 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 106. Up to 8 conditions per place. [2025-02-08 14:06:48,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 121 transitions, 249 flow [2025-02-08 14:06:48,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 120 transitions, 247 flow [2025-02-08 14:06:48,637 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:06:48,647 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;@3fbe13eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:06:48,647 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-02-08 14:06:48,655 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:06:48,656 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-08 14:06:48,656 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:06:48,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:48,656 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:06:48,656 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-08 14:06:48,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:48,660 INFO L85 PathProgramCache]: Analyzing trace with hash 694020, now seen corresponding path program 1 times [2025-02-08 14:06:48,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:48,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179996105] [2025-02-08 14:06:48,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:48,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:48,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:06:48,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:06:48,736 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:48,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:48,896 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 14:06:48,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:48,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179996105] [2025-02-08 14:06:48,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179996105] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:48,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:48,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:06:48,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351031773] [2025-02-08 14:06:48,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:48,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:06:48,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:48,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:06:48,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:06:48,931 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 121 [2025-02-08 14:06:48,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 120 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 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 14:06:48,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:48,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 121 [2025-02-08 14:06:48,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:49,241 INFO L124 PetriNetUnfolderBase]: 486/1579 cut-off events. [2025-02-08 14:06:49,241 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:06:49,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2555 conditions, 1579 events. 486/1579 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10944 event pairs, 440 based on Foata normal form. 408/1795 useless extension candidates. Maximal degree in co-relation 2461. Up to 969 conditions per place. [2025-02-08 14:06:49,254 INFO L140 encePairwiseOnDemand]: 95/121 looper letters, 49 selfloop transitions, 3 changer transitions 0/102 dead transitions. [2025-02-08 14:06:49,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 102 transitions, 315 flow [2025-02-08 14:06:49,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:06:49,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:06:49,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2025-02-08 14:06:49,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2025-02-08 14:06:49,269 INFO L175 Difference]: Start difference. First operand has 100 places, 120 transitions, 247 flow. Second operand 4 states and 275 transitions. [2025-02-08 14:06:49,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 102 transitions, 315 flow [2025-02-08 14:06:49,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 102 transitions, 315 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:06:49,275 INFO L231 Difference]: Finished difference. Result has 105 places, 102 transitions, 231 flow [2025-02-08 14:06:49,277 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=231, PETRI_PLACES=105, PETRI_TRANSITIONS=102} [2025-02-08 14:06:49,279 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places. [2025-02-08 14:06:49,279 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 102 transitions, 231 flow [2025-02-08 14:06:49,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 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 14:06:49,279 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:49,279 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-08 14:06:49,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:06:49,280 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-08 14:06:49,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:49,280 INFO L85 PathProgramCache]: Analyzing trace with hash -798729102, now seen corresponding path program 1 times [2025-02-08 14:06:49,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:49,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487411417] [2025-02-08 14:06:49,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:49,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:49,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:06:49,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:06:49,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:49,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:49,391 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 14:06:49,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:49,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487411417] [2025-02-08 14:06:49,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487411417] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:06:49,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449090173] [2025-02-08 14:06:49,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:49,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:06:49,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:06:49,398 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 14:06:49,399 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 14:06:49,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:06:49,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:06:49,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:49,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:49,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:06:49,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:06:49,504 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 14:06:49,504 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:06:49,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449090173] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:49,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:06:49,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-08 14:06:49,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344409365] [2025-02-08 14:06:49,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:49,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:06:49,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:49,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:06:49,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:06:49,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 121 [2025-02-08 14:06:49,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 102 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 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 14:06:49,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:49,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 121 [2025-02-08 14:06:49,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:49,815 INFO L124 PetriNetUnfolderBase]: 486/1578 cut-off events. [2025-02-08 14:06:49,816 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:06:49,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2565 conditions, 1578 events. 486/1578 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10922 event pairs, 440 based on Foata normal form. 1/1387 useless extension candidates. Maximal degree in co-relation 2547. Up to 964 conditions per place. [2025-02-08 14:06:49,823 INFO L140 encePairwiseOnDemand]: 116/121 looper letters, 45 selfloop transitions, 6 changer transitions 0/101 dead transitions. [2025-02-08 14:06:49,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 101 transitions, 329 flow [2025-02-08 14:06:49,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:06:49,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:06:49,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 352 transitions. [2025-02-08 14:06:49,826 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2025-02-08 14:06:49,826 INFO L175 Difference]: Start difference. First operand has 105 places, 102 transitions, 231 flow. Second operand 6 states and 352 transitions. [2025-02-08 14:06:49,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 101 transitions, 329 flow [2025-02-08 14:06:49,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 101 transitions, 327 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:06:49,828 INFO L231 Difference]: Finished difference. Result has 108 places, 101 transitions, 237 flow [2025-02-08 14:06:49,828 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=108, PETRI_TRANSITIONS=101} [2025-02-08 14:06:49,829 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2025-02-08 14:06:49,829 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 101 transitions, 237 flow [2025-02-08 14:06:49,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 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 14:06:49,829 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:49,829 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 14:06:49,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 14:06:50,034 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 14:06:50,034 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-08 14:06:50,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:50,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1009202173, now seen corresponding path program 1 times [2025-02-08 14:06:50,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:50,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705976494] [2025-02-08 14:06:50,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:50,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:50,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:06:50,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:06:50,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:50,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:50,098 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 14:06:50,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:50,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705976494] [2025-02-08 14:06:50,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705976494] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:50,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:50,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:06:50,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091167787] [2025-02-08 14:06:50,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:50,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:06:50,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:50,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:06:50,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:06:50,105 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 121 [2025-02-08 14:06:50,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 101 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:06:50,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:50,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 121 [2025-02-08 14:06:50,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:50,266 INFO L124 PetriNetUnfolderBase]: 486/1577 cut-off events. [2025-02-08 14:06:50,267 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-08 14:06:50,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2567 conditions, 1577 events. 486/1577 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10938 event pairs, 440 based on Foata normal form. 1/1387 useless extension candidates. Maximal degree in co-relation 2543. Up to 967 conditions per place. [2025-02-08 14:06:50,296 INFO L140 encePairwiseOnDemand]: 118/121 looper letters, 46 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2025-02-08 14:06:50,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 100 transitions, 333 flow [2025-02-08 14:06:50,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:06:50,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:06:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2025-02-08 14:06:50,298 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5482093663911846 [2025-02-08 14:06:50,298 INFO L175 Difference]: Start difference. First operand has 108 places, 101 transitions, 237 flow. Second operand 3 states and 199 transitions. [2025-02-08 14:06:50,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 100 transitions, 333 flow [2025-02-08 14:06:50,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 100 transitions, 311 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-08 14:06:50,302 INFO L231 Difference]: Finished difference. Result has 103 places, 100 transitions, 219 flow [2025-02-08 14:06:50,302 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=219, PETRI_PLACES=103, PETRI_TRANSITIONS=100} [2025-02-08 14:06:50,303 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 3 predicate places. [2025-02-08 14:06:50,303 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 100 transitions, 219 flow [2025-02-08 14:06:50,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:06:50,304 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:50,304 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:06:50,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:06:50,305 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-08 14:06:50,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:50,305 INFO L85 PathProgramCache]: Analyzing trace with hash -818745088, now seen corresponding path program 1 times [2025-02-08 14:06:50,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:50,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225548323] [2025-02-08 14:06:50,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:50,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:50,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:06:50,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:06:50,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:50,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:06:50,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:50,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225548323] [2025-02-08 14:06:50,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225548323] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:06:50,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651686658] [2025-02-08 14:06:50,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:50,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:06:50,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:06:50,416 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 14:06:50,419 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 14:06:50,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:06:50,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:06:50,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:50,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:50,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:06:50,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:06:50,506 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:06:50,506 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:06:50,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:06:50,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651686658] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:06:50,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:06:50,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-02-08 14:06:50,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845568486] [2025-02-08 14:06:50,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:06:50,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:06:50,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:50,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:06:50,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:06:50,553 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 121 [2025-02-08 14:06:50,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 100 transitions, 219 flow. Second operand has 10 states, 10 states have (on average 51.3) internal successors, (513), 10 states have internal predecessors, (513), 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 14:06:50,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:50,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 121 [2025-02-08 14:06:50,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:50,807 INFO L124 PetriNetUnfolderBase]: 486/1581 cut-off events. [2025-02-08 14:06:50,808 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-02-08 14:06:50,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2570 conditions, 1581 events. 486/1581 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 10898 event pairs, 440 based on Foata normal form. 2/1393 useless extension candidates. Maximal degree in co-relation 2536. Up to 965 conditions per place. [2025-02-08 14:06:50,815 INFO L140 encePairwiseOnDemand]: 117/121 looper letters, 46 selfloop transitions, 7 changer transitions 0/103 dead transitions. [2025-02-08 14:06:50,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 103 transitions, 340 flow [2025-02-08 14:06:50,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:06:50,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:06:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 405 transitions. [2025-02-08 14:06:50,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4781582054309327 [2025-02-08 14:06:50,819 INFO L175 Difference]: Start difference. First operand has 103 places, 100 transitions, 219 flow. Second operand 7 states and 405 transitions. [2025-02-08 14:06:50,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 103 transitions, 340 flow [2025-02-08 14:06:50,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 103 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:06:50,822 INFO L231 Difference]: Finished difference. Result has 109 places, 103 transitions, 245 flow [2025-02-08 14:06:50,823 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=245, PETRI_PLACES=109, PETRI_TRANSITIONS=103} [2025-02-08 14:06:50,824 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 9 predicate places. [2025-02-08 14:06:50,824 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 103 transitions, 245 flow [2025-02-08 14:06:50,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 51.3) internal successors, (513), 10 states have internal predecessors, (513), 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 14:06:50,825 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:50,825 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2025-02-08 14:06:50,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 14:06:51,025 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 14:06:51,027 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-08 14:06:51,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:51,028 INFO L85 PathProgramCache]: Analyzing trace with hash 515170880, now seen corresponding path program 2 times [2025-02-08 14:06:51,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:51,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900215246] [2025-02-08 14:06:51,028 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:06:51,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:51,047 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-02-08 14:06:51,050 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 15 statements. [2025-02-08 14:06:51,050 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:06:51,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:51,128 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 14:06:51,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:51,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900215246] [2025-02-08 14:06:51,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900215246] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:51,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:51,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:06:51,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429983758] [2025-02-08 14:06:51,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:51,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:06:51,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:51,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:06:51,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:06:51,134 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 121 [2025-02-08 14:06:51,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 103 transitions, 245 flow. Second operand has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 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 14:06:51,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:51,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 121 [2025-02-08 14:06:51,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:51,350 INFO L124 PetriNetUnfolderBase]: 506/1605 cut-off events. [2025-02-08 14:06:51,350 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-08 14:06:51,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2635 conditions, 1605 events. 506/1605 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 11016 event pairs, 210 based on Foata normal form. 21/1453 useless extension candidates. Maximal degree in co-relation 2596. Up to 942 conditions per place. [2025-02-08 14:06:51,359 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 92 selfloop transitions, 3 changer transitions 0/142 dead transitions. [2025-02-08 14:06:51,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 142 transitions, 513 flow [2025-02-08 14:06:51,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:06:51,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:06:51,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 289 transitions. [2025-02-08 14:06:51,361 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5971074380165289 [2025-02-08 14:06:51,361 INFO L175 Difference]: Start difference. First operand has 109 places, 103 transitions, 245 flow. Second operand 4 states and 289 transitions. [2025-02-08 14:06:51,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 142 transitions, 513 flow [2025-02-08 14:06:51,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 142 transitions, 509 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:06:51,364 INFO L231 Difference]: Finished difference. Result has 109 places, 101 transitions, 247 flow [2025-02-08 14:06:51,364 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=247, PETRI_PLACES=109, PETRI_TRANSITIONS=101} [2025-02-08 14:06:51,368 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 9 predicate places. [2025-02-08 14:06:51,368 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 101 transitions, 247 flow [2025-02-08 14:06:51,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 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 14:06:51,368 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:51,368 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:06:51,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:06:51,368 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-08 14:06:51,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:51,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1158704833, now seen corresponding path program 1 times [2025-02-08 14:06:51,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:51,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626928573] [2025-02-08 14:06:51,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:51,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:51,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:06:51,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:06:51,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:51,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 14:06:51,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:51,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626928573] [2025-02-08 14:06:51,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626928573] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:51,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:51,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:06:51,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121720403] [2025-02-08 14:06:51,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:51,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:06:51,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:51,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:06:51,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:06:51,452 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 121 [2025-02-08 14:06:51,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 101 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 14:06:51,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:51,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 121 [2025-02-08 14:06:51,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:51,669 INFO L124 PetriNetUnfolderBase]: 506/1578 cut-off events. [2025-02-08 14:06:51,669 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2025-02-08 14:06:51,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2648 conditions, 1578 events. 506/1578 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10816 event pairs, 378 based on Foata normal form. 23/1426 useless extension candidates. Maximal degree in co-relation 2609. Up to 875 conditions per place. [2025-02-08 14:06:51,675 INFO L140 encePairwiseOnDemand]: 117/121 looper letters, 95 selfloop transitions, 3 changer transitions 0/144 dead transitions. [2025-02-08 14:06:51,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 144 transitions, 537 flow [2025-02-08 14:06:51,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:06:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:06:51,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 294 transitions. [2025-02-08 14:06:51,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6074380165289256 [2025-02-08 14:06:51,678 INFO L175 Difference]: Start difference. First operand has 109 places, 101 transitions, 247 flow. Second operand 4 states and 294 transitions. [2025-02-08 14:06:51,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 144 transitions, 537 flow [2025-02-08 14:06:51,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 144 transitions, 527 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:06:51,681 INFO L231 Difference]: Finished difference. Result has 108 places, 100 transitions, 245 flow [2025-02-08 14:06:51,682 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=245, PETRI_PLACES=108, PETRI_TRANSITIONS=100} [2025-02-08 14:06:51,682 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2025-02-08 14:06:51,682 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 100 transitions, 245 flow [2025-02-08 14:06:51,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 14:06:51,683 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:51,684 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:06:51,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:06:51,684 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-08 14:06:51,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:51,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1538155321, now seen corresponding path program 1 times [2025-02-08 14:06:51,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:51,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12069277] [2025-02-08 14:06:51,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:51,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:51,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 14:06:51,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 14:06:51,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:51,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:51,788 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:06:51,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:51,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12069277] [2025-02-08 14:06:51,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12069277] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:06:51,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80875669] [2025-02-08 14:06:51,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:51,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:06:51,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:06:51,791 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 14:06:51,793 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 14:06:51,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 14:06:51,861 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 14:06:51,862 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:51,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:51,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 14:06:51,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:06:51,891 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:06:51,892 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:06:51,963 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:06:51,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80875669] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:06:51,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:06:51,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-08 14:06:51,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383926335] [2025-02-08 14:06:51,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:06:51,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 14:06:51,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:51,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 14:06:51,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-08 14:06:51,983 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 121 [2025-02-08 14:06:51,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 100 transitions, 245 flow. Second operand has 18 states, 18 states have (on average 51.22222222222222) internal successors, (922), 18 states have internal predecessors, (922), 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 14:06:51,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:51,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 121 [2025-02-08 14:06:51,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:52,303 INFO L124 PetriNetUnfolderBase]: 485/1547 cut-off events. [2025-02-08 14:06:52,304 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2025-02-08 14:06:52,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2640 conditions, 1547 events. 485/1547 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10430 event pairs, 440 based on Foata normal form. 4/1400 useless extension candidates. Maximal degree in co-relation 2565. Up to 947 conditions per place. [2025-02-08 14:06:52,310 INFO L140 encePairwiseOnDemand]: 117/121 looper letters, 46 selfloop transitions, 15 changer transitions 0/108 dead transitions. [2025-02-08 14:06:52,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 108 transitions, 415 flow [2025-02-08 14:06:52,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 14:06:52,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 14:06:52,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 815 transitions. [2025-02-08 14:06:52,313 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4490358126721763 [2025-02-08 14:06:52,313 INFO L175 Difference]: Start difference. First operand has 108 places, 100 transitions, 245 flow. Second operand 15 states and 815 transitions. [2025-02-08 14:06:52,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 108 transitions, 415 flow [2025-02-08 14:06:52,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 108 transitions, 409 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:06:52,315 INFO L231 Difference]: Finished difference. Result has 123 places, 108 transitions, 336 flow [2025-02-08 14:06:52,315 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=336, PETRI_PLACES=123, PETRI_TRANSITIONS=108} [2025-02-08 14:06:52,316 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 23 predicate places. [2025-02-08 14:06:52,316 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 108 transitions, 336 flow [2025-02-08 14:06:52,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 51.22222222222222) internal successors, (922), 18 states have internal predecessors, (922), 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 14:06:52,316 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:52,317 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:06:52,323 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 14:06:52,517 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 14:06:52,518 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-08 14:06:52,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:52,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2010988729, now seen corresponding path program 2 times [2025-02-08 14:06:52,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:52,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607724149] [2025-02-08 14:06:52,518 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:06:52,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:52,531 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-02-08 14:06:52,551 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 14:06:52,552 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:06:52,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:52,819 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:06:52,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:52,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607724149] [2025-02-08 14:06:52,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607724149] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:06:52,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809454388] [2025-02-08 14:06:52,820 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:06:52,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:06:52,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:06:52,825 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 14:06:52,829 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 14:06:52,886 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-02-08 14:06:52,912 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 14:06:52,912 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:06:52,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:52,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 14:06:52,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:06:52,969 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:06:52,969 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:06:53,136 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:06:53,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809454388] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:06:53,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:06:53,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2025-02-08 14:06:53,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690960551] [2025-02-08 14:06:53,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:06:53,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 14:06:53,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:53,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 14:06:53,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-08 14:06:53,157 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 121 [2025-02-08 14:06:53,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 108 transitions, 336 flow. Second operand has 23 states, 23 states have (on average 51.21739130434783) internal successors, (1178), 23 states have internal predecessors, (1178), 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 14:06:53,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:53,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 121 [2025-02-08 14:06:53,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:53,462 INFO L124 PetriNetUnfolderBase]: 485/1556 cut-off events. [2025-02-08 14:06:53,462 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2025-02-08 14:06:53,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2635 conditions, 1556 events. 485/1556 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 10399 event pairs, 440 based on Foata normal form. 3/1408 useless extension candidates. Maximal degree in co-relation 2500. Up to 947 conditions per place. [2025-02-08 14:06:53,469 INFO L140 encePairwiseOnDemand]: 117/121 looper letters, 46 selfloop transitions, 21 changer transitions 0/114 dead transitions. [2025-02-08 14:06:53,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 114 transitions, 524 flow [2025-02-08 14:06:53,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-08 14:06:53,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-08 14:06:53,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1120 transitions. [2025-02-08 14:06:53,472 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44077134986225897 [2025-02-08 14:06:53,472 INFO L175 Difference]: Start difference. First operand has 123 places, 108 transitions, 336 flow. Second operand 21 states and 1120 transitions. [2025-02-08 14:06:53,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 114 transitions, 524 flow [2025-02-08 14:06:53,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 114 transitions, 514 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-02-08 14:06:53,475 INFO L231 Difference]: Finished difference. Result has 142 places, 114 transitions, 437 flow [2025-02-08 14:06:53,475 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=437, PETRI_PLACES=142, PETRI_TRANSITIONS=114} [2025-02-08 14:06:53,475 INFO L279 CegarLoopForPetriNet]: 100 programPoint places, 42 predicate places. [2025-02-08 14:06:53,475 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 114 transitions, 437 flow [2025-02-08 14:06:53,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 51.21739130434783) internal successors, (1178), 23 states have internal predecessors, (1178), 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 14:06:53,476 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:53,476 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:06:53,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 14:06:53,676 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,SelfDestructingSolverStorable7 [2025-02-08 14:06:53,677 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-02-08 14:06:53,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:53,678 INFO L85 PathProgramCache]: Analyzing trace with hash 762558411, now seen corresponding path program 3 times [2025-02-08 14:06:53,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:53,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311171452] [2025-02-08 14:06:53,678 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:06:53,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:53,686 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 39 statements into 11 equivalence classes. [2025-02-08 14:06:53,720 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 39 of 39 statements. [2025-02-08 14:06:53,720 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-08 14:06:53,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:06:53,720 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 14:06:53,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-08 14:06:53,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-08 14:06:53,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:53,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 14:06:53,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 14:06:53,766 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 14:06:53,766 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2025-02-08 14:06:53,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2025-02-08 14:06:53,769 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2025-02-08 14:06:53,770 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2025-02-08 14:06:53,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 14:06:53,771 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2025-02-08 14:06:53,772 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 14:06:53,772 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 14:06:53,805 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 14:06:53,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 174 transitions, 364 flow [2025-02-08 14:06:53,822 INFO L124 PetriNetUnfolderBase]: 59/293 cut-off events. [2025-02-08 14:06:53,822 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 14:06:53,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 293 events. 59/293 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1400 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 173. Up to 12 conditions per place. [2025-02-08 14:06:53,823 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 174 transitions, 364 flow [2025-02-08 14:06:53,835 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 174 transitions, 364 flow [2025-02-08 14:06:53,837 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:06:53,839 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;@3fbe13eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:06:53,839 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2025-02-08 14:06:53,841 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:06:53,841 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-08 14:06:53,841 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:06:53,841 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:53,841 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:06:53,841 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-08 14:06:53,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:53,841 INFO L85 PathProgramCache]: Analyzing trace with hash 866802, now seen corresponding path program 1 times [2025-02-08 14:06:53,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:53,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459954378] [2025-02-08 14:06:53,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:53,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:53,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:06:53,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:06:53,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:53,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:53,876 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 14:06:53,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:53,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459954378] [2025-02-08 14:06:53,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459954378] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:53,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:53,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:06:53,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543024660] [2025-02-08 14:06:53,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:53,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:06:53,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:53,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:06:53,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:06:53,885 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2025-02-08 14:06:53,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 174 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 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 14:06:53,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:53,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2025-02-08 14:06:53,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:56,488 INFO L124 PetriNetUnfolderBase]: 20921/45670 cut-off events. [2025-02-08 14:06:56,488 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2025-02-08 14:06:56,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76930 conditions, 45670 events. 20921/45670 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 1216. Compared 481621 event pairs, 19440 based on Foata normal form. 13385/54045 useless extension candidates. Maximal degree in co-relation 60369. Up to 31146 conditions per place. [2025-02-08 14:06:56,702 INFO L140 encePairwiseOnDemand]: 138/174 looper letters, 72 selfloop transitions, 3 changer transitions 0/146 dead transitions. [2025-02-08 14:06:56,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 146 transitions, 458 flow [2025-02-08 14:06:56,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:06:56,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:06:56,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 392 transitions. [2025-02-08 14:06:56,704 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5632183908045977 [2025-02-08 14:06:56,704 INFO L175 Difference]: Start difference. First operand has 143 places, 174 transitions, 364 flow. Second operand 4 states and 392 transitions. [2025-02-08 14:06:56,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 146 transitions, 458 flow [2025-02-08 14:06:56,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 146 transitions, 458 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:06:56,707 INFO L231 Difference]: Finished difference. Result has 148 places, 146 transitions, 328 flow [2025-02-08 14:06:56,707 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=328, PETRI_PLACES=148, PETRI_TRANSITIONS=146} [2025-02-08 14:06:56,708 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 5 predicate places. [2025-02-08 14:06:56,708 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 146 transitions, 328 flow [2025-02-08 14:06:56,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 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 14:06:56,708 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:56,708 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-08 14:06:56,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 14:06:56,708 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-08 14:06:56,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:56,709 INFO L85 PathProgramCache]: Analyzing trace with hash 53824946, now seen corresponding path program 1 times [2025-02-08 14:06:56,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:56,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642389860] [2025-02-08 14:06:56,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:56,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:56,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:06:56,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:06:56,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:56,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:56,758 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 14:06:56,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:56,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642389860] [2025-02-08 14:06:56,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642389860] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:06:56,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970651178] [2025-02-08 14:06:56,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:56,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:06:56,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:06:56,764 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 14:06:56,767 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 14:06:56,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:06:56,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:06:56,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:56,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:56,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:06:56,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:06:56,850 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 14:06:56,850 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:06:56,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970651178] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:56,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:06:56,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-08 14:06:56,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146133296] [2025-02-08 14:06:56,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:56,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:06:56,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:56,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:06:56,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:06:56,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2025-02-08 14:06:56,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 146 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 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 14:06:56,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:56,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2025-02-08 14:06:56,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:06:59,292 INFO L124 PetriNetUnfolderBase]: 20921/45669 cut-off events. [2025-02-08 14:06:59,292 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2025-02-08 14:06:59,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76940 conditions, 45669 events. 20921/45669 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 1216. Compared 481741 event pairs, 19440 based on Foata normal form. 1/40660 useless extension candidates. Maximal degree in co-relation 76921. Up to 31141 conditions per place. [2025-02-08 14:06:59,485 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 68 selfloop transitions, 6 changer transitions 0/145 dead transitions. [2025-02-08 14:06:59,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 145 transitions, 472 flow [2025-02-08 14:06:59,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:06:59,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:06:59,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 501 transitions. [2025-02-08 14:06:59,487 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47988505747126436 [2025-02-08 14:06:59,487 INFO L175 Difference]: Start difference. First operand has 148 places, 146 transitions, 328 flow. Second operand 6 states and 501 transitions. [2025-02-08 14:06:59,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 145 transitions, 472 flow [2025-02-08 14:06:59,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 145 transitions, 470 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:06:59,490 INFO L231 Difference]: Finished difference. Result has 151 places, 145 transitions, 334 flow [2025-02-08 14:06:59,490 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=334, PETRI_PLACES=151, PETRI_TRANSITIONS=145} [2025-02-08 14:06:59,491 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 8 predicate places. [2025-02-08 14:06:59,491 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 145 transitions, 334 flow [2025-02-08 14:06:59,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.83333333333333) internal successors, (431), 6 states have internal predecessors, (431), 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 14:06:59,491 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:06:59,491 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 14:06:59,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 14:06:59,693 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,SelfDestructingSolverStorable10 [2025-02-08 14:06:59,694 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-08 14:06:59,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:06:59,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1668574059, now seen corresponding path program 1 times [2025-02-08 14:06:59,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:06:59,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512806442] [2025-02-08 14:06:59,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:06:59,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:06:59,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:06:59,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:06:59,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:06:59,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:06:59,722 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 14:06:59,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:06:59,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512806442] [2025-02-08 14:06:59,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512806442] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:06:59,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:06:59,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:06:59,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142107814] [2025-02-08 14:06:59,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:06:59,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:06:59,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:06:59,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:06:59,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:06:59,727 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2025-02-08 14:06:59,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 145 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 14:06:59,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:06:59,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2025-02-08 14:06:59,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:02,299 INFO L124 PetriNetUnfolderBase]: 20921/45668 cut-off events. [2025-02-08 14:07:02,299 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2025-02-08 14:07:02,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76942 conditions, 45668 events. 20921/45668 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 1216. Compared 481743 event pairs, 19440 based on Foata normal form. 1/40660 useless extension candidates. Maximal degree in co-relation 76917. Up to 31144 conditions per place. [2025-02-08 14:07:02,495 INFO L140 encePairwiseOnDemand]: 171/174 looper letters, 69 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2025-02-08 14:07:02,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 144 transitions, 476 flow [2025-02-08 14:07:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:07:02,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:07:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2025-02-08 14:07:02,498 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5459770114942529 [2025-02-08 14:07:02,498 INFO L175 Difference]: Start difference. First operand has 151 places, 145 transitions, 334 flow. Second operand 3 states and 285 transitions. [2025-02-08 14:07:02,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 144 transitions, 476 flow [2025-02-08 14:07:02,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 144 transitions, 454 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-08 14:07:02,500 INFO L231 Difference]: Finished difference. Result has 146 places, 144 transitions, 316 flow [2025-02-08 14:07:02,501 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=146, PETRI_TRANSITIONS=144} [2025-02-08 14:07:02,501 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 3 predicate places. [2025-02-08 14:07:02,502 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 144 transitions, 316 flow [2025-02-08 14:07:02,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 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 14:07:02,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:02,502 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:02,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 14:07:02,502 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-08 14:07:02,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:02,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1477499425, now seen corresponding path program 1 times [2025-02-08 14:07:02,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:02,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285963106] [2025-02-08 14:07:02,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:02,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:02,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:07:02,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:07:02,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:02,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:02,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:02,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:02,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285963106] [2025-02-08 14:07:02,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285963106] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:02,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925828850] [2025-02-08 14:07:02,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:02,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:02,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:02,551 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 14:07:02,552 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 14:07:02,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:07:02,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:07:02,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:02,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:02,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:07:02,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:02,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:02,628 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:02,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:02,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925828850] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:02,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:02,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-02-08 14:07:02,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520755116] [2025-02-08 14:07:02,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:02,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:07:02,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:02,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:07:02,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:07:02,660 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2025-02-08 14:07:02,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 144 transitions, 316 flow. Second operand has 10 states, 10 states have (on average 72.3) internal successors, (723), 10 states have internal predecessors, (723), 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 14:07:02,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:02,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2025-02-08 14:07:02,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:05,073 INFO L124 PetriNetUnfolderBase]: 20921/45672 cut-off events. [2025-02-08 14:07:05,074 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2025-02-08 14:07:05,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76945 conditions, 45672 events. 20921/45672 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 1216. Compared 481809 event pairs, 19440 based on Foata normal form. 2/40666 useless extension candidates. Maximal degree in co-relation 76910. Up to 31142 conditions per place. [2025-02-08 14:07:05,289 INFO L140 encePairwiseOnDemand]: 170/174 looper letters, 69 selfloop transitions, 7 changer transitions 0/147 dead transitions. [2025-02-08 14:07:05,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 147 transitions, 483 flow [2025-02-08 14:07:05,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:07:05,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:07:05,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 575 transitions. [2025-02-08 14:07:05,291 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4720853858784893 [2025-02-08 14:07:05,291 INFO L175 Difference]: Start difference. First operand has 146 places, 144 transitions, 316 flow. Second operand 7 states and 575 transitions. [2025-02-08 14:07:05,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 147 transitions, 483 flow [2025-02-08 14:07:05,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 147 transitions, 469 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:05,294 INFO L231 Difference]: Finished difference. Result has 152 places, 147 transitions, 342 flow [2025-02-08 14:07:05,294 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=342, PETRI_PLACES=152, PETRI_TRANSITIONS=147} [2025-02-08 14:07:05,295 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 9 predicate places. [2025-02-08 14:07:05,295 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 147 transitions, 342 flow [2025-02-08 14:07:05,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.3) internal successors, (723), 10 states have internal predecessors, (723), 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 14:07:05,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:05,295 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:05,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 14:07:05,496 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 14:07:05,496 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-08 14:07:05,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:05,496 INFO L85 PathProgramCache]: Analyzing trace with hash -727891423, now seen corresponding path program 2 times [2025-02-08 14:07:05,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:05,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204999266] [2025-02-08 14:07:05,497 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:05,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:05,506 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-02-08 14:07:05,511 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 15 statements. [2025-02-08 14:07:05,512 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:07:05,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 14:07:05,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:05,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204999266] [2025-02-08 14:07:05,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204999266] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:05,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:05,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:05,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364752750] [2025-02-08 14:07:05,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:05,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:05,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:05,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:05,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:05,577 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 174 [2025-02-08 14:07:05,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 147 transitions, 342 flow. Second operand has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 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 14:07:05,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:05,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 174 [2025-02-08 14:07:05,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:08,326 INFO L124 PetriNetUnfolderBase]: 23017/48593 cut-off events. [2025-02-08 14:07:08,326 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2025-02-08 14:07:08,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83177 conditions, 48593 events. 23017/48593 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 1261. Compared 507733 event pairs, 10580 based on Foata normal form. 21/43364 useless extension candidates. Maximal degree in co-relation 83137. Up to 34389 conditions per place. [2025-02-08 14:07:08,564 INFO L140 encePairwiseOnDemand]: 168/174 looper letters, 119 selfloop transitions, 3 changer transitions 0/190 dead transitions. [2025-02-08 14:07:08,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 190 transitions, 672 flow [2025-02-08 14:07:08,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:08,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:08,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 400 transitions. [2025-02-08 14:07:08,566 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5747126436781609 [2025-02-08 14:07:08,569 INFO L175 Difference]: Start difference. First operand has 152 places, 147 transitions, 342 flow. Second operand 4 states and 400 transitions. [2025-02-08 14:07:08,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 190 transitions, 672 flow [2025-02-08 14:07:08,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 190 transitions, 668 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:08,572 INFO L231 Difference]: Finished difference. Result has 155 places, 149 transitions, 362 flow [2025-02-08 14:07:08,572 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=362, PETRI_PLACES=155, PETRI_TRANSITIONS=149} [2025-02-08 14:07:08,572 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 12 predicate places. [2025-02-08 14:07:08,573 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 149 transitions, 362 flow [2025-02-08 14:07:08,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 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 14:07:08,573 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:08,576 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:08,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 14:07:08,577 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-08 14:07:08,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:08,577 INFO L85 PathProgramCache]: Analyzing trace with hash 576745506, now seen corresponding path program 1 times [2025-02-08 14:07:08,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:08,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963568666] [2025-02-08 14:07:08,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:08,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:08,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:07:08,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:07:08,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:08,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:08,626 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 14:07:08,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:08,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963568666] [2025-02-08 14:07:08,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963568666] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:08,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:08,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:08,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743748083] [2025-02-08 14:07:08,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:08,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:08,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:08,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:08,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:08,636 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2025-02-08 14:07:08,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 149 transitions, 362 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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 14:07:08,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:08,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2025-02-08 14:07:08,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:11,594 INFO L124 PetriNetUnfolderBase]: 21855/47113 cut-off events. [2025-02-08 14:07:11,595 INFO L125 PetriNetUnfolderBase]: For 1085/2015 co-relation queries the response was YES. [2025-02-08 14:07:11,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80849 conditions, 47113 events. 21855/47113 cut-off events. For 1085/2015 co-relation queries the response was YES. Maximal size of possible extension queue 1233. Compared 495801 event pairs, 15393 based on Foata normal form. 527/42729 useless extension candidates. Maximal degree in co-relation 80808. Up to 28686 conditions per place. [2025-02-08 14:07:11,852 INFO L140 encePairwiseOnDemand]: 170/174 looper letters, 167 selfloop transitions, 3 changer transitions 0/240 dead transitions. [2025-02-08 14:07:11,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 240 transitions, 914 flow [2025-02-08 14:07:11,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:11,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:11,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 447 transitions. [2025-02-08 14:07:11,854 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6422413793103449 [2025-02-08 14:07:11,854 INFO L175 Difference]: Start difference. First operand has 155 places, 149 transitions, 362 flow. Second operand 4 states and 447 transitions. [2025-02-08 14:07:11,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 240 transitions, 914 flow [2025-02-08 14:07:11,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 240 transitions, 910 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:07:11,858 INFO L231 Difference]: Finished difference. Result has 156 places, 148 transitions, 364 flow [2025-02-08 14:07:11,858 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=364, PETRI_PLACES=156, PETRI_TRANSITIONS=148} [2025-02-08 14:07:11,858 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 13 predicate places. [2025-02-08 14:07:11,858 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 148 transitions, 364 flow [2025-02-08 14:07:11,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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 14:07:11,859 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:11,859 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:11,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 14:07:11,859 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-08 14:07:11,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:11,859 INFO L85 PathProgramCache]: Analyzing trace with hash 699242331, now seen corresponding path program 1 times [2025-02-08 14:07:11,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:11,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195841148] [2025-02-08 14:07:11,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:11,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:11,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 14:07:11,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 14:07:11,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:11,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:11,895 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-08 14:07:11,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:11,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195841148] [2025-02-08 14:07:11,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195841148] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:11,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:11,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:11,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250414326] [2025-02-08 14:07:11,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:11,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:11,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:11,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:11,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:11,900 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2025-02-08 14:07:11,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 148 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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 14:07:11,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:11,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2025-02-08 14:07:11,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:14,898 INFO L124 PetriNetUnfolderBase]: 20832/45431 cut-off events. [2025-02-08 14:07:14,899 INFO L125 PetriNetUnfolderBase]: For 2476/3353 co-relation queries the response was YES. [2025-02-08 14:07:14,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79099 conditions, 45431 events. 20832/45431 cut-off events. For 2476/3353 co-relation queries the response was YES. Maximal size of possible extension queue 1183. Compared 478167 event pairs, 16531 based on Foata normal form. 526/41522 useless extension candidates. Maximal degree in co-relation 79058. Up to 26720 conditions per place. [2025-02-08 14:07:15,097 INFO L140 encePairwiseOnDemand]: 170/174 looper letters, 166 selfloop transitions, 3 changer transitions 0/239 dead transitions. [2025-02-08 14:07:15,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 239 transitions, 912 flow [2025-02-08 14:07:15,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:15,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 446 transitions. [2025-02-08 14:07:15,099 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6408045977011494 [2025-02-08 14:07:15,099 INFO L175 Difference]: Start difference. First operand has 156 places, 148 transitions, 364 flow. Second operand 4 states and 446 transitions. [2025-02-08 14:07:15,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 239 transitions, 912 flow [2025-02-08 14:07:15,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 239 transitions, 906 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:07:15,105 INFO L231 Difference]: Finished difference. Result has 155 places, 147 transitions, 362 flow [2025-02-08 14:07:15,106 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=362, PETRI_PLACES=155, PETRI_TRANSITIONS=147} [2025-02-08 14:07:15,106 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 12 predicate places. [2025-02-08 14:07:15,106 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 147 transitions, 362 flow [2025-02-08 14:07:15,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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 14:07:15,107 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:15,107 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:15,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 14:07:15,107 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-08 14:07:15,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:15,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1963545571, now seen corresponding path program 1 times [2025-02-08 14:07:15,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:15,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570736246] [2025-02-08 14:07:15,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:15,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:15,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 14:07:15,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 14:07:15,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:15,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:15,197 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:15,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:15,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570736246] [2025-02-08 14:07:15,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570736246] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:15,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936771538] [2025-02-08 14:07:15,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:15,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:15,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:15,203 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 14:07:15,206 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 14:07:15,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 14:07:15,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 14:07:15,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:15,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:15,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 14:07:15,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:15,305 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:15,305 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:15,365 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:15,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936771538] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:15,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:15,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-08 14:07:15,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187799790] [2025-02-08 14:07:15,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:15,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 14:07:15,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:15,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 14:07:15,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-08 14:07:15,383 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2025-02-08 14:07:15,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 147 transitions, 362 flow. Second operand has 18 states, 18 states have (on average 72.27777777777777) internal successors, (1301), 18 states have internal predecessors, (1301), 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 14:07:15,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:15,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2025-02-08 14:07:15,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:18,288 INFO L124 PetriNetUnfolderBase]: 20919/45937 cut-off events. [2025-02-08 14:07:18,288 INFO L125 PetriNetUnfolderBase]: For 2589/3460 co-relation queries the response was YES. [2025-02-08 14:07:18,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79689 conditions, 45937 events. 20919/45937 cut-off events. For 2589/3460 co-relation queries the response was YES. Maximal size of possible extension queue 1199. Compared 485584 event pairs, 19440 based on Foata normal form. 23/41340 useless extension candidates. Maximal degree in co-relation 79612. Up to 31126 conditions per place. [2025-02-08 14:07:18,550 INFO L140 encePairwiseOnDemand]: 170/174 looper letters, 70 selfloop transitions, 15 changer transitions 0/155 dead transitions. [2025-02-08 14:07:18,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 155 transitions, 580 flow [2025-02-08 14:07:18,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 14:07:18,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 14:07:18,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1153 transitions. [2025-02-08 14:07:18,554 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4417624521072797 [2025-02-08 14:07:18,554 INFO L175 Difference]: Start difference. First operand has 155 places, 147 transitions, 362 flow. Second operand 15 states and 1153 transitions. [2025-02-08 14:07:18,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 155 transitions, 580 flow [2025-02-08 14:07:18,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 155 transitions, 574 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:07:18,559 INFO L231 Difference]: Finished difference. Result has 170 places, 155 transitions, 453 flow [2025-02-08 14:07:18,559 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=453, PETRI_PLACES=170, PETRI_TRANSITIONS=155} [2025-02-08 14:07:18,560 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 27 predicate places. [2025-02-08 14:07:18,560 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 155 transitions, 453 flow [2025-02-08 14:07:18,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 72.27777777777777) internal successors, (1301), 18 states have internal predecessors, (1301), 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 14:07:18,560 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:18,561 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:18,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-08 14:07:18,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:18,762 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-08 14:07:18,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:18,763 INFO L85 PathProgramCache]: Analyzing trace with hash 451533853, now seen corresponding path program 2 times [2025-02-08 14:07:18,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:18,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348194998] [2025-02-08 14:07:18,763 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:18,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:18,772 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 2 equivalence classes. [2025-02-08 14:07:18,776 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 32 statements. [2025-02-08 14:07:18,777 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:07:18,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:18,826 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:07:18,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:18,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348194998] [2025-02-08 14:07:18,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348194998] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:18,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:18,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:07:18,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102622239] [2025-02-08 14:07:18,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:18,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:07:18,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:18,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:07:18,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:07:18,840 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 174 [2025-02-08 14:07:18,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 155 transitions, 453 flow. Second operand has 6 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 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 14:07:18,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:18,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 174 [2025-02-08 14:07:18,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:21,917 INFO L124 PetriNetUnfolderBase]: 22173/45760 cut-off events. [2025-02-08 14:07:21,917 INFO L125 PetriNetUnfolderBase]: For 1888/1888 co-relation queries the response was YES. [2025-02-08 14:07:22,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81175 conditions, 45760 events. 22173/45760 cut-off events. For 1888/1888 co-relation queries the response was YES. Maximal size of possible extension queue 1211. Compared 467929 event pairs, 3333 based on Foata normal form. 441/42193 useless extension candidates. Maximal degree in co-relation 81074. Up to 27259 conditions per place. [2025-02-08 14:07:22,174 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 203 selfloop transitions, 6 changer transitions 0/275 dead transitions. [2025-02-08 14:07:22,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 275 transitions, 1109 flow [2025-02-08 14:07:22,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:07:22,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:07:22,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 617 transitions. [2025-02-08 14:07:22,176 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5909961685823755 [2025-02-08 14:07:22,176 INFO L175 Difference]: Start difference. First operand has 170 places, 155 transitions, 453 flow. Second operand 6 states and 617 transitions. [2025-02-08 14:07:22,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 275 transitions, 1109 flow [2025-02-08 14:07:22,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 275 transitions, 1099 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-02-08 14:07:22,181 INFO L231 Difference]: Finished difference. Result has 170 places, 154 transitions, 451 flow [2025-02-08 14:07:22,181 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=451, PETRI_PLACES=170, PETRI_TRANSITIONS=154} [2025-02-08 14:07:22,182 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 27 predicate places. [2025-02-08 14:07:22,182 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 154 transitions, 451 flow [2025-02-08 14:07:22,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.0) internal successors, (432), 6 states have internal predecessors, (432), 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 14:07:22,182 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:22,182 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:22,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 14:07:22,182 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-08 14:07:22,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:22,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1112648349, now seen corresponding path program 1 times [2025-02-08 14:07:22,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:22,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694437776] [2025-02-08 14:07:22,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:22,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:22,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-08 14:07:22,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-08 14:07:22,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:22,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:07:22,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:22,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694437776] [2025-02-08 14:07:22,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694437776] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:22,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:22,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:22,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486377106] [2025-02-08 14:07:22,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:22,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:22,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:22,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:22,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:22,248 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 174 [2025-02-08 14:07:22,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 154 transitions, 451 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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 14:07:22,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:22,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 174 [2025-02-08 14:07:22,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:25,186 INFO L124 PetriNetUnfolderBase]: 20893/42163 cut-off events. [2025-02-08 14:07:25,186 INFO L125 PetriNetUnfolderBase]: For 3444/3444 co-relation queries the response was YES. [2025-02-08 14:07:25,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76706 conditions, 42163 events. 20893/42163 cut-off events. For 3444/3444 co-relation queries the response was YES. Maximal size of possible extension queue 1144. Compared 423529 event pairs, 885 based on Foata normal form. 441/39386 useless extension candidates. Maximal degree in co-relation 76609. Up to 28010 conditions per place. [2025-02-08 14:07:25,467 INFO L140 encePairwiseOnDemand]: 169/174 looper letters, 162 selfloop transitions, 6 changer transitions 0/234 dead transitions. [2025-02-08 14:07:25,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 234 transitions, 945 flow [2025-02-08 14:07:25,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:25,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:25,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 434 transitions. [2025-02-08 14:07:25,469 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6235632183908046 [2025-02-08 14:07:25,469 INFO L175 Difference]: Start difference. First operand has 170 places, 154 transitions, 451 flow. Second operand 4 states and 434 transitions. [2025-02-08 14:07:25,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 234 transitions, 945 flow [2025-02-08 14:07:25,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 234 transitions, 929 flow, removed 3 selfloop flow, removed 5 redundant places. [2025-02-08 14:07:25,480 INFO L231 Difference]: Finished difference. Result has 168 places, 154 transitions, 451 flow [2025-02-08 14:07:25,480 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=451, PETRI_PLACES=168, PETRI_TRANSITIONS=154} [2025-02-08 14:07:25,480 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 25 predicate places. [2025-02-08 14:07:25,480 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 154 transitions, 451 flow [2025-02-08 14:07:25,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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 14:07:25,481 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:25,481 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:25,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 14:07:25,481 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-08 14:07:25,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:25,481 INFO L85 PathProgramCache]: Analyzing trace with hash 134639582, now seen corresponding path program 1 times [2025-02-08 14:07:25,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:25,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90525067] [2025-02-08 14:07:25,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:25,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:25,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-08 14:07:25,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-08 14:07:25,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:25,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:25,521 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:07:25,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:25,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90525067] [2025-02-08 14:07:25,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90525067] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:25,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:25,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:25,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719414099] [2025-02-08 14:07:25,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:25,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:25,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:25,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:25,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:25,525 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2025-02-08 14:07:25,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 154 transitions, 451 flow. Second operand has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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 14:07:25,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:25,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2025-02-08 14:07:25,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:28,356 INFO L124 PetriNetUnfolderBase]: 21406/42682 cut-off events. [2025-02-08 14:07:28,356 INFO L125 PetriNetUnfolderBase]: For 4069/4069 co-relation queries the response was YES. [2025-02-08 14:07:28,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76978 conditions, 42682 events. 21406/42682 cut-off events. For 4069/4069 co-relation queries the response was YES. Maximal size of possible extension queue 1159. Compared 424060 event pairs, 900 based on Foata normal form. 487/39366 useless extension candidates. Maximal degree in co-relation 76883. Up to 27381 conditions per place. [2025-02-08 14:07:28,620 INFO L140 encePairwiseOnDemand]: 170/174 looper letters, 172 selfloop transitions, 3 changer transitions 0/241 dead transitions. [2025-02-08 14:07:28,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 241 transitions, 999 flow [2025-02-08 14:07:28,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:28,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:28,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 445 transitions. [2025-02-08 14:07:28,621 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.639367816091954 [2025-02-08 14:07:28,621 INFO L175 Difference]: Start difference. First operand has 168 places, 154 transitions, 451 flow. Second operand 4 states and 445 transitions. [2025-02-08 14:07:28,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 241 transitions, 999 flow [2025-02-08 14:07:28,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 241 transitions, 987 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:28,626 INFO L231 Difference]: Finished difference. Result has 168 places, 153 transitions, 447 flow [2025-02-08 14:07:28,626 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=447, PETRI_PLACES=168, PETRI_TRANSITIONS=153} [2025-02-08 14:07:28,626 INFO L279 CegarLoopForPetriNet]: 143 programPoint places, 25 predicate places. [2025-02-08 14:07:28,626 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 153 transitions, 447 flow [2025-02-08 14:07:28,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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 14:07:28,626 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:28,626 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-08 14:07:28,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-08 14:07:28,627 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2025-02-08 14:07:28,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:28,627 INFO L85 PathProgramCache]: Analyzing trace with hash -191765667, now seen corresponding path program 1 times [2025-02-08 14:07:28,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:28,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166345593] [2025-02-08 14:07:28,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:28,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:28,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-08 14:07:28,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-08 14:07:28,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:28,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:28,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:28,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166345593] [2025-02-08 14:07:28,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166345593] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:28,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991516353] [2025-02-08 14:07:28,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:28,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:28,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:28,864 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 14:07:28,867 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 14:07:28,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-08 14:07:28,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-08 14:07:28,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:28,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:28,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 14:07:28,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:29,000 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:29,140 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:29,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991516353] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:29,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:29,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2025-02-08 14:07:29,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906970608] [2025-02-08 14:07:29,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:29,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 14:07:29,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:29,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 14:07:29,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-08 14:07:29,161 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 174 [2025-02-08 14:07:29,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 153 transitions, 447 flow. Second operand has 23 states, 23 states have (on average 72.26086956521739) internal successors, (1662), 23 states have internal predecessors, (1662), 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 14:07:29,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:29,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 174 [2025-02-08 14:07:29,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand