./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:07:35,104 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:07:35,153 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:07:35,164 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:07:35,165 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:07:35,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:07:35,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:07:35,181 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:07:35,181 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:07:35,181 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:07:35,181 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:07:35,181 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:07:35,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:07:35,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:07:35,182 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:07:35,183 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:35,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:07:35,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:07:35,183 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 -> b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a [2025-02-08 14:07:35,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:07:35,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:07:35,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:07:35,397 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:07:35,397 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:07:35,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2025-02-08 14:07:36,531 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8947a980a/157b738891784632a88a0638e5259577/FLAG548ae4c4c [2025-02-08 14:07:36,783 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:07:36,784 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2025-02-08 14:07:36,802 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8947a980a/157b738891784632a88a0638e5259577/FLAG548ae4c4c [2025-02-08 14:07:36,826 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8947a980a/157b738891784632a88a0638e5259577 [2025-02-08 14:07:36,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:07:36,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:07:36,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:36,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:07:36,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:07:36,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:36" (1/1) ... [2025-02-08 14:07:36,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1984e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:36, skipping insertion in model container [2025-02-08 14:07:36,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:36" (1/1) ... [2025-02-08 14:07:36,851 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:07:36,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:37,000 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:07:37,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:37,057 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:07:37,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37 WrapperNode [2025-02-08 14:07:37,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:37,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:37,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:07:37,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:07:37,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37" (1/1) ... [2025-02-08 14:07:37,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37" (1/1) ... [2025-02-08 14:07:37,118 INFO L138 Inliner]: procedures = 23, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 169 [2025-02-08 14:07:37,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:37,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:07:37,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:07:37,119 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:07:37,129 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37" (1/1) ... [2025-02-08 14:07:37,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37" (1/1) ... [2025-02-08 14:07:37,135 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37" (1/1) ... [2025-02-08 14:07:37,166 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2025-02-08 14:07:37,166 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37" (1/1) ... [2025-02-08 14:07:37,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37" (1/1) ... [2025-02-08 14:07:37,179 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37" (1/1) ... [2025-02-08 14:07:37,179 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37" (1/1) ... [2025-02-08 14:07:37,180 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37" (1/1) ... [2025-02-08 14:07:37,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37" (1/1) ... [2025-02-08 14:07:37,193 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:07:37,194 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:07:37,194 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:07:37,194 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:07:37,194 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37" (1/1) ... [2025-02-08 14:07:37,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:37,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:37,229 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 14:07:37,234 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 14:07:37,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:07:37,249 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:07:37,249 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:07:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:07:37,250 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:07:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:07:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:07:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:07:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:07:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 14:07:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:07:37,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:07:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:07:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:07:37,251 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 14:07:37,338 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:07:37,339 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:07:37,597 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:07:37,597 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:07:37,743 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:07:37,743 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:07:37,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:37 BoogieIcfgContainer [2025-02-08 14:07:37,744 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:07:37,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:07:37,746 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:07:37,749 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:07:37,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:07:36" (1/3) ... [2025-02-08 14:07:37,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b88502a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:37, skipping insertion in model container [2025-02-08 14:07:37,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:37" (2/3) ... [2025-02-08 14:07:37,750 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b88502a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:37, skipping insertion in model container [2025-02-08 14:07:37,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:37" (3/3) ... [2025-02-08 14:07:37,751 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2025-02-08 14:07:37,762 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:07:37,763 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-chromosome-opt-symm.wvr.c that has 3 procedures, 40 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2025-02-08 14:07:37,763 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:07:37,798 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 14:07:37,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 45 transitions, 104 flow [2025-02-08 14:07:37,862 INFO L124 PetriNetUnfolderBase]: 6/43 cut-off events. [2025-02-08 14:07:37,863 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 14:07:37,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 43 events. 6/43 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2025-02-08 14:07:37,865 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 45 transitions, 104 flow [2025-02-08 14:07:37,875 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 42 transitions, 96 flow [2025-02-08 14:07:37,880 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:07:37,887 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;@13514ca4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:07:37,888 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2025-02-08 14:07:37,894 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:07:37,894 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-08 14:07:37,894 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:07:37,894 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:37,895 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:07:37,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:37,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:37,903 INFO L85 PathProgramCache]: Analyzing trace with hash 466024, now seen corresponding path program 1 times [2025-02-08 14:07:37,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:37,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603071272] [2025-02-08 14:07:37,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:37,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:37,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:07:38,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:07:38,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:38,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:38,129 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 14:07:38,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:38,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603071272] [2025-02-08 14:07:38,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603071272] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:38,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:38,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:38,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128104433] [2025-02-08 14:07:38,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:38,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:38,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:38,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:38,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:38,168 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2025-02-08 14:07:38,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 14:07:38,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:38,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2025-02-08 14:07:38,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:38,280 INFO L124 PetriNetUnfolderBase]: 144/300 cut-off events. [2025-02-08 14:07:38,280 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-08 14:07:38,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 566 conditions, 300 events. 144/300 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1238 event pairs, 88 based on Foata normal form. 2/245 useless extension candidates. Maximal degree in co-relation 482. Up to 237 conditions per place. [2025-02-08 14:07:38,283 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 28 selfloop transitions, 7 changer transitions 0/48 dead transitions. [2025-02-08 14:07:38,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 178 flow [2025-02-08 14:07:38,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:38,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:38,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2025-02-08 14:07:38,291 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.55 [2025-02-08 14:07:38,292 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 96 flow. Second operand 4 states and 99 transitions. [2025-02-08 14:07:38,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 178 flow [2025-02-08 14:07:38,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 48 transitions, 170 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:07:38,297 INFO L231 Difference]: Finished difference. Result has 45 places, 48 transitions, 148 flow [2025-02-08 14:07:38,298 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2025-02-08 14:07:38,300 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2025-02-08 14:07:38,300 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 148 flow [2025-02-08 14:07:38,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 14:07:38,301 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:38,301 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-08 14:07:38,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:07:38,301 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:38,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:38,302 INFO L85 PathProgramCache]: Analyzing trace with hash 998802474, now seen corresponding path program 1 times [2025-02-08 14:07:38,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:38,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862413526] [2025-02-08 14:07:38,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:38,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:38,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:07:38,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:07:38,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:38,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:38,381 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 14:07:38,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:38,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862413526] [2025-02-08 14:07:38,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862413526] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:38,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828672329] [2025-02-08 14:07:38,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:38,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:38,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:38,389 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 14:07:38,390 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 14:07:38,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:07:38,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:07:38,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:38,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:38,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:07:38,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:38,522 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 14:07:38,522 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:07:38,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828672329] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:38,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:07:38,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-08 14:07:38,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360569968] [2025-02-08 14:07:38,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:38,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:07:38,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:38,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:07:38,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:07:38,554 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2025-02-08 14:07:38,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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 14:07:38,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:38,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2025-02-08 14:07:38,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:38,731 INFO L124 PetriNetUnfolderBase]: 144/298 cut-off events. [2025-02-08 14:07:38,731 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-02-08 14:07:38,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 298 events. 144/298 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1224 event pairs, 88 based on Foata normal form. 2/246 useless extension candidates. Maximal degree in co-relation 521. Up to 227 conditions per place. [2025-02-08 14:07:38,733 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 21 selfloop transitions, 12 changer transitions 0/46 dead transitions. [2025-02-08 14:07:38,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 46 transitions, 206 flow [2025-02-08 14:07:38,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:07:38,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:07:38,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2025-02-08 14:07:38,734 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46296296296296297 [2025-02-08 14:07:38,734 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 148 flow. Second operand 6 states and 125 transitions. [2025-02-08 14:07:38,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 46 transitions, 206 flow [2025-02-08 14:07:38,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 46 transitions, 206 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:07:38,736 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 164 flow [2025-02-08 14:07:38,736 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=164, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2025-02-08 14:07:38,737 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2025-02-08 14:07:38,737 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 164 flow [2025-02-08 14:07:38,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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 14:07:38,737 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:38,737 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 14:07:38,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 14:07:38,942 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 14:07:38,942 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:38,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:38,945 INFO L85 PathProgramCache]: Analyzing trace with hash 898106006, now seen corresponding path program 1 times [2025-02-08 14:07:38,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:38,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048030881] [2025-02-08 14:07:38,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:38,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:38,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:07:38,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:07:38,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:38,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:39,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:39,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:39,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048030881] [2025-02-08 14:07:39,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048030881] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:39,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758936094] [2025-02-08 14:07:39,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:39,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:39,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:39,070 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 14:07:39,072 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 14:07:39,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:07:39,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:07:39,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:39,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:39,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:07:39,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:39,149 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:39,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:39,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758936094] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:39,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:39,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-08 14:07:39,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458008044] [2025-02-08 14:07:39,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:39,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 14:07:39,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:39,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 14:07:39,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 14:07:39,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2025-02-08 14:07:39,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 164 flow. Second operand has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 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 14:07:39,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:39,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2025-02-08 14:07:39,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:39,348 INFO L124 PetriNetUnfolderBase]: 150/322 cut-off events. [2025-02-08 14:07:39,349 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2025-02-08 14:07:39,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 322 events. 150/322 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1394 event pairs, 88 based on Foata normal form. 6/273 useless extension candidates. Maximal degree in co-relation 523. Up to 238 conditions per place. [2025-02-08 14:07:39,351 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 26 selfloop transitions, 25 changer transitions 0/64 dead transitions. [2025-02-08 14:07:39,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 64 transitions, 380 flow [2025-02-08 14:07:39,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:07:39,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:07:39,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 207 transitions. [2025-02-08 14:07:39,352 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46 [2025-02-08 14:07:39,352 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 164 flow. Second operand 10 states and 207 transitions. [2025-02-08 14:07:39,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 64 transitions, 380 flow [2025-02-08 14:07:39,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 64 transitions, 322 flow, removed 12 selfloop flow, removed 5 redundant places. [2025-02-08 14:07:39,355 INFO L231 Difference]: Finished difference. Result has 55 places, 64 transitions, 304 flow [2025-02-08 14:07:39,355 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=304, PETRI_PLACES=55, PETRI_TRANSITIONS=64} [2025-02-08 14:07:39,356 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2025-02-08 14:07:39,356 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 64 transitions, 304 flow [2025-02-08 14:07:39,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 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 14:07:39,356 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:39,356 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:39,362 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 14:07:39,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:39,559 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:39,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:39,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1141131087, now seen corresponding path program 1 times [2025-02-08 14:07:39,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:39,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243840651] [2025-02-08 14:07:39,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:39,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:39,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-08 14:07:39,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-08 14:07:39,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:39,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:39,615 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 14:07:39,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:39,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243840651] [2025-02-08 14:07:39,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243840651] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:39,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:39,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:39,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20067987] [2025-02-08 14:07:39,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:39,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:07:39,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:39,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:07:39,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:07:39,618 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2025-02-08 14:07:39,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 64 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:07:39,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:39,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2025-02-08 14:07:39,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:39,707 INFO L124 PetriNetUnfolderBase]: 148/320 cut-off events. [2025-02-08 14:07:39,707 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2025-02-08 14:07:39,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 670 conditions, 320 events. 148/320 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1325 event pairs, 88 based on Foata normal form. 2/269 useless extension candidates. Maximal degree in co-relation 603. Up to 247 conditions per place. [2025-02-08 14:07:39,710 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 40 selfloop transitions, 7 changer transitions 0/62 dead transitions. [2025-02-08 14:07:39,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 62 transitions, 388 flow [2025-02-08 14:07:39,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:07:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:07:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2025-02-08 14:07:39,712 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6518518518518519 [2025-02-08 14:07:39,712 INFO L175 Difference]: Start difference. First operand has 55 places, 64 transitions, 304 flow. Second operand 3 states and 88 transitions. [2025-02-08 14:07:39,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 62 transitions, 388 flow [2025-02-08 14:07:39,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 62 transitions, 358 flow, removed 6 selfloop flow, removed 3 redundant places. [2025-02-08 14:07:39,714 INFO L231 Difference]: Finished difference. Result has 54 places, 62 transitions, 278 flow [2025-02-08 14:07:39,714 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=54, PETRI_TRANSITIONS=62} [2025-02-08 14:07:39,717 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 11 predicate places. [2025-02-08 14:07:39,717 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 62 transitions, 278 flow [2025-02-08 14:07:39,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:07:39,718 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:39,718 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:39,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:07:39,718 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:39,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:39,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1976934712, now seen corresponding path program 1 times [2025-02-08 14:07:39,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:39,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918343479] [2025-02-08 14:07:39,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:39,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:39,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:07:39,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:07:39,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:39,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:39,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:07:39,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:39,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918343479] [2025-02-08 14:07:39,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918343479] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:39,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:39,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:39,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098952233] [2025-02-08 14:07:39,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:39,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:39,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:39,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:39,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:39,854 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2025-02-08 14:07:39,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 62 transitions, 278 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 14:07:39,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:39,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2025-02-08 14:07:39,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:40,018 INFO L124 PetriNetUnfolderBase]: 310/591 cut-off events. [2025-02-08 14:07:40,018 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2025-02-08 14:07:40,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1194 conditions, 591 events. 310/591 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2587 event pairs, 131 based on Foata normal form. 14/522 useless extension candidates. Maximal degree in co-relation 1129. Up to 337 conditions per place. [2025-02-08 14:07:40,023 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 71 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2025-02-08 14:07:40,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 87 transitions, 480 flow [2025-02-08 14:07:40,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:40,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:40,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2025-02-08 14:07:40,025 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6777777777777778 [2025-02-08 14:07:40,025 INFO L175 Difference]: Start difference. First operand has 54 places, 62 transitions, 278 flow. Second operand 4 states and 122 transitions. [2025-02-08 14:07:40,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 87 transitions, 480 flow [2025-02-08 14:07:40,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 87 transitions, 466 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:40,030 INFO L231 Difference]: Finished difference. Result has 57 places, 64 transitions, 286 flow [2025-02-08 14:07:40,030 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=286, PETRI_PLACES=57, PETRI_TRANSITIONS=64} [2025-02-08 14:07:40,030 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 14 predicate places. [2025-02-08 14:07:40,030 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 64 transitions, 286 flow [2025-02-08 14:07:40,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 14:07:40,033 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:40,033 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-08 14:07:40,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:07:40,033 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:40,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:40,034 INFO L85 PathProgramCache]: Analyzing trace with hash 960008344, now seen corresponding path program 2 times [2025-02-08 14:07:40,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:40,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079812883] [2025-02-08 14:07:40,034 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:40,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:40,046 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:07:40,050 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:07:40,052 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:07:40,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:40,093 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:07:40,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:40,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079812883] [2025-02-08 14:07:40,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079812883] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:40,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782639381] [2025-02-08 14:07:40,094 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:40,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:40,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:40,096 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 14:07:40,108 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 14:07:40,155 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:07:40,162 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:07:40,162 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:07:40,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:40,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:07:40,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:40,192 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:07:40,193 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:07:40,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782639381] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:40,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:40,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2025-02-08 14:07:40,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110379810] [2025-02-08 14:07:40,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:40,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 14:07:40,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:40,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 14:07:40,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-08 14:07:40,237 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2025-02-08 14:07:40,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 64 transitions, 286 flow. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 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 14:07:40,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:40,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2025-02-08 14:07:40,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:40,347 INFO L124 PetriNetUnfolderBase]: 268/575 cut-off events. [2025-02-08 14:07:40,348 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2025-02-08 14:07:40,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1215 conditions, 575 events. 268/575 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2786 event pairs, 171 based on Foata normal form. 2/516 useless extension candidates. Maximal degree in co-relation 1159. Up to 420 conditions per place. [2025-02-08 14:07:40,351 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 24 selfloop transitions, 25 changer transitions 0/62 dead transitions. [2025-02-08 14:07:40,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 62 transitions, 364 flow [2025-02-08 14:07:40,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:40,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:40,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2025-02-08 14:07:40,352 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48333333333333334 [2025-02-08 14:07:40,352 INFO L175 Difference]: Start difference. First operand has 57 places, 64 transitions, 286 flow. Second operand 4 states and 87 transitions. [2025-02-08 14:07:40,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 62 transitions, 364 flow [2025-02-08 14:07:40,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 62 transitions, 342 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-02-08 14:07:40,354 INFO L231 Difference]: Finished difference. Result has 53 places, 62 transitions, 294 flow [2025-02-08 14:07:40,354 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=294, PETRI_PLACES=53, PETRI_TRANSITIONS=62} [2025-02-08 14:07:40,355 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 10 predicate places. [2025-02-08 14:07:40,355 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 62 transitions, 294 flow [2025-02-08 14:07:40,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 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 14:07:40,355 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:40,355 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:40,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 14:07:40,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:40,556 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:40,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:40,556 INFO L85 PathProgramCache]: Analyzing trace with hash 588954987, now seen corresponding path program 1 times [2025-02-08 14:07:40,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:40,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094027121] [2025-02-08 14:07:40,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:40,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:40,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:07:40,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:07:40,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:40,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:40,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 14:07:40,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:40,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094027121] [2025-02-08 14:07:40,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094027121] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:40,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:40,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:40,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513909152] [2025-02-08 14:07:40,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:40,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:40,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:40,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:40,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:40,617 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2025-02-08 14:07:40,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 62 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 14:07:40,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:40,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2025-02-08 14:07:40,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:40,762 INFO L124 PetriNetUnfolderBase]: 528/984 cut-off events. [2025-02-08 14:07:40,763 INFO L125 PetriNetUnfolderBase]: For 240/268 co-relation queries the response was YES. [2025-02-08 14:07:40,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2091 conditions, 984 events. 528/984 cut-off events. For 240/268 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4708 event pairs, 239 based on Foata normal form. 24/916 useless extension candidates. Maximal degree in co-relation 1945. Up to 572 conditions per place. [2025-02-08 14:07:40,768 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 74 selfloop transitions, 3 changer transitions 0/88 dead transitions. [2025-02-08 14:07:40,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 88 transitions, 527 flow [2025-02-08 14:07:40,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:40,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:40,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2025-02-08 14:07:40,769 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6611111111111111 [2025-02-08 14:07:40,769 INFO L175 Difference]: Start difference. First operand has 53 places, 62 transitions, 294 flow. Second operand 4 states and 119 transitions. [2025-02-08 14:07:40,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 88 transitions, 527 flow [2025-02-08 14:07:40,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 88 transitions, 477 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:07:40,771 INFO L231 Difference]: Finished difference. Result has 55 places, 64 transitions, 266 flow [2025-02-08 14:07:40,771 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=55, PETRI_TRANSITIONS=64} [2025-02-08 14:07:40,773 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2025-02-08 14:07:40,773 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 64 transitions, 266 flow [2025-02-08 14:07:40,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 14:07:40,773 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:40,773 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:40,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:07:40,773 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:40,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:40,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1677376787, now seen corresponding path program 1 times [2025-02-08 14:07:40,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:40,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917624157] [2025-02-08 14:07:40,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:40,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:40,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 14:07:40,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 14:07:40,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:40,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:40,870 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:07:40,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:40,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917624157] [2025-02-08 14:07:40,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917624157] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:40,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841081669] [2025-02-08 14:07:40,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:40,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:40,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:40,877 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 14:07:40,878 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 14:07:40,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 14:07:40,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 14:07:40,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:40,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:40,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:07:40,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:40,982 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:07:40,982 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:41,014 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 14:07:41,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841081669] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:41,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:41,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-08 14:07:41,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880580130] [2025-02-08 14:07:41,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:41,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 14:07:41,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:41,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 14:07:41,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2025-02-08 14:07:41,035 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2025-02-08 14:07:41,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 64 transitions, 266 flow. Second operand has 11 states, 11 states have (on average 16.818181818181817) internal successors, (185), 11 states have internal predecessors, (185), 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 14:07:41,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:41,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2025-02-08 14:07:41,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:41,343 INFO L124 PetriNetUnfolderBase]: 447/932 cut-off events. [2025-02-08 14:07:41,343 INFO L125 PetriNetUnfolderBase]: For 327/329 co-relation queries the response was YES. [2025-02-08 14:07:41,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2101 conditions, 932 events. 447/932 cut-off events. For 327/329 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4779 event pairs, 304 based on Foata normal form. 0/911 useless extension candidates. Maximal degree in co-relation 1990. Up to 709 conditions per place. [2025-02-08 14:07:41,354 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 26 selfloop transitions, 21 changer transitions 0/60 dead transitions. [2025-02-08 14:07:41,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 60 transitions, 340 flow [2025-02-08 14:07:41,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:07:41,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:07:41,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 144 transitions. [2025-02-08 14:07:41,359 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45714285714285713 [2025-02-08 14:07:41,359 INFO L175 Difference]: Start difference. First operand has 55 places, 64 transitions, 266 flow. Second operand 7 states and 144 transitions. [2025-02-08 14:07:41,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 60 transitions, 340 flow [2025-02-08 14:07:41,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 60 transitions, 338 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:07:41,369 INFO L231 Difference]: Finished difference. Result has 60 places, 60 transitions, 286 flow [2025-02-08 14:07:41,370 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=286, PETRI_PLACES=60, PETRI_TRANSITIONS=60} [2025-02-08 14:07:41,370 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 17 predicate places. [2025-02-08 14:07:41,370 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 60 transitions, 286 flow [2025-02-08 14:07:41,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.818181818181817) internal successors, (185), 11 states have internal predecessors, (185), 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 14:07:41,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:41,371 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:41,378 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 14:07:41,571 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 14:07:41,572 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:41,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:41,572 INFO L85 PathProgramCache]: Analyzing trace with hash -131587853, now seen corresponding path program 2 times [2025-02-08 14:07:41,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:41,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837962351] [2025-02-08 14:07:41,572 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:41,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:41,591 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-02-08 14:07:41,610 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 14:07:41,612 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:07:41,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:41,714 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 14:07:41,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:41,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837962351] [2025-02-08 14:07:41,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837962351] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:41,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415536101] [2025-02-08 14:07:41,714 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:41,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:41,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:41,720 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 14:07:41,723 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 14:07:41,781 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-02-08 14:07:41,805 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 14:07:41,805 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:07:41,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:41,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-08 14:07:41,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:41,910 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-08 14:07:41,911 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:07:42,100 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-08 14:07:42,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415536101] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:07:42,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:07:42,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 20 [2025-02-08 14:07:42,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310234684] [2025-02-08 14:07:42,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:07:42,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-08 14:07:42,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:42,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-08 14:07:42,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2025-02-08 14:07:42,224 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2025-02-08 14:07:42,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 286 flow. Second operand has 20 states, 20 states have (on average 15.0) internal successors, (300), 20 states have internal predecessors, (300), 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 14:07:42,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:42,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2025-02-08 14:07:42,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:42,736 INFO L124 PetriNetUnfolderBase]: 459/870 cut-off events. [2025-02-08 14:07:42,736 INFO L125 PetriNetUnfolderBase]: For 310/344 co-relation queries the response was YES. [2025-02-08 14:07:42,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1997 conditions, 870 events. 459/870 cut-off events. For 310/344 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3982 event pairs, 30 based on Foata normal form. 26/865 useless extension candidates. Maximal degree in co-relation 1865. Up to 263 conditions per place. [2025-02-08 14:07:42,741 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 70 selfloop transitions, 27 changer transitions 0/108 dead transitions. [2025-02-08 14:07:42,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 108 transitions, 632 flow [2025-02-08 14:07:42,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 14:07:42,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 14:07:42,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 287 transitions. [2025-02-08 14:07:42,743 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42518518518518517 [2025-02-08 14:07:42,743 INFO L175 Difference]: Start difference. First operand has 60 places, 60 transitions, 286 flow. Second operand 15 states and 287 transitions. [2025-02-08 14:07:42,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 108 transitions, 632 flow [2025-02-08 14:07:42,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 108 transitions, 616 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:07:42,745 INFO L231 Difference]: Finished difference. Result has 71 places, 59 transitions, 343 flow [2025-02-08 14:07:42,746 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=343, PETRI_PLACES=71, PETRI_TRANSITIONS=59} [2025-02-08 14:07:42,746 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 28 predicate places. [2025-02-08 14:07:42,746 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 59 transitions, 343 flow [2025-02-08 14:07:42,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 15.0) internal successors, (300), 20 states have internal predecessors, (300), 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 14:07:42,747 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:42,747 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:42,758 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 14:07:42,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:42,951 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:42,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:42,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1662345014, now seen corresponding path program 1 times [2025-02-08 14:07:42,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:42,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780633677] [2025-02-08 14:07:42,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:42,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:42,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-08 14:07:42,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-08 14:07:42,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:42,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:43,014 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2025-02-08 14:07:43,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:43,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780633677] [2025-02-08 14:07:43,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780633677] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:43,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:43,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:43,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312962461] [2025-02-08 14:07:43,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:43,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:43,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:43,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:43,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:43,021 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2025-02-08 14:07:43,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 59 transitions, 343 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 14:07:43,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:43,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2025-02-08 14:07:43,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:43,169 INFO L124 PetriNetUnfolderBase]: 481/933 cut-off events. [2025-02-08 14:07:43,170 INFO L125 PetriNetUnfolderBase]: For 606/631 co-relation queries the response was YES. [2025-02-08 14:07:43,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2282 conditions, 933 events. 481/933 cut-off events. For 606/631 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4558 event pairs, 90 based on Foata normal form. 24/950 useless extension candidates. Maximal degree in co-relation 2126. Up to 456 conditions per place. [2025-02-08 14:07:43,174 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 67 selfloop transitions, 6 changer transitions 0/84 dead transitions. [2025-02-08 14:07:43,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 84 transitions, 565 flow [2025-02-08 14:07:43,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:43,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:43,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2025-02-08 14:07:43,175 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2025-02-08 14:07:43,175 INFO L175 Difference]: Start difference. First operand has 71 places, 59 transitions, 343 flow. Second operand 4 states and 116 transitions. [2025-02-08 14:07:43,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 84 transitions, 565 flow [2025-02-08 14:07:43,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 84 transitions, 521 flow, removed 2 selfloop flow, removed 12 redundant places. [2025-02-08 14:07:43,178 INFO L231 Difference]: Finished difference. Result has 62 places, 59 transitions, 315 flow [2025-02-08 14:07:43,178 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=315, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2025-02-08 14:07:43,178 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 19 predicate places. [2025-02-08 14:07:43,179 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 315 flow [2025-02-08 14:07:43,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 14:07:43,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:43,179 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:43,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 14:07:43,179 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:43,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:43,180 INFO L85 PathProgramCache]: Analyzing trace with hash 595315237, now seen corresponding path program 1 times [2025-02-08 14:07:43,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:43,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037226340] [2025-02-08 14:07:43,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:43,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:43,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-08 14:07:43,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:07:43,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:43,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:43,379 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:07:43,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:43,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037226340] [2025-02-08 14:07:43,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037226340] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:07:43,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116832927] [2025-02-08 14:07:43,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:43,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:07:43,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:43,383 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 14:07:43,384 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 14:07:43,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-08 14:07:43,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-08 14:07:43,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:43,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:43,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:07:43,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:07:43,500 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-02-08 14:07:43,500 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:07:43,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116832927] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:43,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:07:43,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-08 14:07:43,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701444552] [2025-02-08 14:07:43,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:43,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:07:43,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:43,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:07:43,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:07:43,519 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2025-02-08 14:07:43,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 59 transitions, 315 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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 14:07:43,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:43,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2025-02-08 14:07:43,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:43,796 INFO L124 PetriNetUnfolderBase]: 491/962 cut-off events. [2025-02-08 14:07:43,796 INFO L125 PetriNetUnfolderBase]: For 682/682 co-relation queries the response was YES. [2025-02-08 14:07:43,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2388 conditions, 962 events. 491/962 cut-off events. For 682/682 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4496 event pairs, 31 based on Foata normal form. 27/955 useless extension candidates. Maximal degree in co-relation 2249. Up to 261 conditions per place. [2025-02-08 14:07:43,801 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 92 selfloop transitions, 5 changer transitions 0/106 dead transitions. [2025-02-08 14:07:43,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 106 transitions, 722 flow [2025-02-08 14:07:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:07:43,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:07:43,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 167 transitions. [2025-02-08 14:07:43,805 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6185185185185185 [2025-02-08 14:07:43,805 INFO L175 Difference]: Start difference. First operand has 62 places, 59 transitions, 315 flow. Second operand 6 states and 167 transitions. [2025-02-08 14:07:43,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 106 transitions, 722 flow [2025-02-08 14:07:43,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 106 transitions, 682 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:43,808 INFO L231 Difference]: Finished difference. Result has 64 places, 58 transitions, 313 flow [2025-02-08 14:07:43,811 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=313, PETRI_PLACES=64, PETRI_TRANSITIONS=58} [2025-02-08 14:07:43,811 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2025-02-08 14:07:43,811 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 58 transitions, 313 flow [2025-02-08 14:07:43,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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 14:07:43,812 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:43,812 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:43,820 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 14:07:44,012 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,SelfDestructingSolverStorable10 [2025-02-08 14:07:44,012 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:44,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:44,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1274903598, now seen corresponding path program 1 times [2025-02-08 14:07:44,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:44,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573331283] [2025-02-08 14:07:44,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:44,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:44,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-08 14:07:44,050 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-08 14:07:44,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:44,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:44,108 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2025-02-08 14:07:44,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:44,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573331283] [2025-02-08 14:07:44,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573331283] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:44,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:44,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:44,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831017799] [2025-02-08 14:07:44,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:44,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:44,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:44,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:44,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:44,115 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2025-02-08 14:07:44,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 58 transitions, 313 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 14:07:44,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:44,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2025-02-08 14:07:44,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:44,262 INFO L124 PetriNetUnfolderBase]: 505/1004 cut-off events. [2025-02-08 14:07:44,263 INFO L125 PetriNetUnfolderBase]: For 755/755 co-relation queries the response was YES. [2025-02-08 14:07:44,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2517 conditions, 1004 events. 505/1004 cut-off events. For 755/755 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4984 event pairs, 105 based on Foata normal form. 27/1015 useless extension candidates. Maximal degree in co-relation 2377. Up to 441 conditions per place. [2025-02-08 14:07:44,266 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 67 selfloop transitions, 6 changer transitions 0/82 dead transitions. [2025-02-08 14:07:44,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 82 transitions, 550 flow [2025-02-08 14:07:44,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:44,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:44,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 113 transitions. [2025-02-08 14:07:44,267 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6277777777777778 [2025-02-08 14:07:44,267 INFO L175 Difference]: Start difference. First operand has 64 places, 58 transitions, 313 flow. Second operand 4 states and 113 transitions. [2025-02-08 14:07:44,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 82 transitions, 550 flow [2025-02-08 14:07:44,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 82 transitions, 537 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-02-08 14:07:44,270 INFO L231 Difference]: Finished difference. Result has 62 places, 58 transitions, 316 flow [2025-02-08 14:07:44,270 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=316, PETRI_PLACES=62, PETRI_TRANSITIONS=58} [2025-02-08 14:07:44,272 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 19 predicate places. [2025-02-08 14:07:44,272 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 316 flow [2025-02-08 14:07:44,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 14:07:44,272 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:44,272 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:44,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 14:07:44,273 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:44,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:44,273 INFO L85 PathProgramCache]: Analyzing trace with hash -534111461, now seen corresponding path program 1 times [2025-02-08 14:07:44,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:44,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714489728] [2025-02-08 14:07:44,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:44,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:44,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-08 14:07:44,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-08 14:07:44,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:44,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:44,372 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 14:07:44,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:44,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714489728] [2025-02-08 14:07:44,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714489728] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:44,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:44,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:07:44,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473436434] [2025-02-08 14:07:44,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:44,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:44,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:44,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:44,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:44,376 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2025-02-08 14:07:44,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 316 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:07:44,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:44,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2025-02-08 14:07:44,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:44,493 INFO L124 PetriNetUnfolderBase]: 642/1227 cut-off events. [2025-02-08 14:07:44,493 INFO L125 PetriNetUnfolderBase]: For 989/989 co-relation queries the response was YES. [2025-02-08 14:07:44,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3175 conditions, 1227 events. 642/1227 cut-off events. For 989/989 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6520 event pairs, 286 based on Foata normal form. 5/1220 useless extension candidates. Maximal degree in co-relation 3037. Up to 577 conditions per place. [2025-02-08 14:07:44,498 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 74 selfloop transitions, 5 changer transitions 2/89 dead transitions. [2025-02-08 14:07:44,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 89 transitions, 596 flow [2025-02-08 14:07:44,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:07:44,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:07:44,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 145 transitions. [2025-02-08 14:07:44,499 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2025-02-08 14:07:44,499 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 316 flow. Second operand 5 states and 145 transitions. [2025-02-08 14:07:44,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 89 transitions, 596 flow [2025-02-08 14:07:44,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 89 transitions, 573 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:44,500 INFO L231 Difference]: Finished difference. Result has 66 places, 59 transitions, 328 flow [2025-02-08 14:07:44,501 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=328, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2025-02-08 14:07:44,501 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 23 predicate places. [2025-02-08 14:07:44,501 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 328 flow [2025-02-08 14:07:44,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:07:44,501 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:44,501 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:44,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 14:07:44,502 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:44,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:44,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1382701301, now seen corresponding path program 2 times [2025-02-08 14:07:44,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:44,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115482317] [2025-02-08 14:07:44,502 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:07:44,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:44,510 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 46 statements into 2 equivalence classes. [2025-02-08 14:07:44,512 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 46 statements. [2025-02-08 14:07:44,512 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:07:44,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:44,534 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 14:07:44,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:44,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115482317] [2025-02-08 14:07:44,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115482317] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:44,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:44,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:07:44,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919614814] [2025-02-08 14:07:44,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:44,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:44,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:44,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:44,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:44,537 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2025-02-08 14:07:44,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 328 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:07:44,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:44,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2025-02-08 14:07:44,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:44,685 INFO L124 PetriNetUnfolderBase]: 667/1321 cut-off events. [2025-02-08 14:07:44,685 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2025-02-08 14:07:44,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3371 conditions, 1321 events. 667/1321 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7088 event pairs, 332 based on Foata normal form. 4/1308 useless extension candidates. Maximal degree in co-relation 3229. Up to 647 conditions per place. [2025-02-08 14:07:44,689 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 72 selfloop transitions, 5 changer transitions 0/86 dead transitions. [2025-02-08 14:07:44,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 86 transitions, 586 flow [2025-02-08 14:07:44,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:07:44,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:07:44,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2025-02-08 14:07:44,690 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6266666666666667 [2025-02-08 14:07:44,690 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 328 flow. Second operand 5 states and 141 transitions. [2025-02-08 14:07:44,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 86 transitions, 586 flow [2025-02-08 14:07:44,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 86 transitions, 577 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:44,692 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 342 flow [2025-02-08 14:07:44,693 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=342, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2025-02-08 14:07:44,693 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 27 predicate places. [2025-02-08 14:07:44,693 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 342 flow [2025-02-08 14:07:44,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:07:44,693 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:44,693 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:44,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 14:07:44,693 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:44,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:44,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1513179157, now seen corresponding path program 3 times [2025-02-08 14:07:44,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:44,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373145047] [2025-02-08 14:07:44,694 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:07:44,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:44,701 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 46 statements into 6 equivalence classes. [2025-02-08 14:07:44,703 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 16 of 46 statements. [2025-02-08 14:07:44,703 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 14:07:44,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:44,727 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 14:07:44,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:44,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373145047] [2025-02-08 14:07:44,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373145047] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:44,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:44,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:07:44,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583116709] [2025-02-08 14:07:44,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:44,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:44,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:44,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:44,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:44,729 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2025-02-08 14:07:44,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 342 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:07:44,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:44,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2025-02-08 14:07:44,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:44,863 INFO L124 PetriNetUnfolderBase]: 867/1711 cut-off events. [2025-02-08 14:07:44,863 INFO L125 PetriNetUnfolderBase]: For 1781/1781 co-relation queries the response was YES. [2025-02-08 14:07:44,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4546 conditions, 1711 events. 867/1711 cut-off events. For 1781/1781 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 10059 event pairs, 353 based on Foata normal form. 28/1713 useless extension candidates. Maximal degree in co-relation 4402. Up to 1147 conditions per place. [2025-02-08 14:07:44,869 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 69 selfloop transitions, 4 changer transitions 2/84 dead transitions. [2025-02-08 14:07:44,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 84 transitions, 595 flow [2025-02-08 14:07:44,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:44,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:44,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2025-02-08 14:07:44,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-08 14:07:44,871 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 342 flow. Second operand 4 states and 120 transitions. [2025-02-08 14:07:44,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 84 transitions, 595 flow [2025-02-08 14:07:44,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 587 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:44,873 INFO L231 Difference]: Finished difference. Result has 74 places, 64 transitions, 394 flow [2025-02-08 14:07:44,873 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=394, PETRI_PLACES=74, PETRI_TRANSITIONS=64} [2025-02-08 14:07:44,874 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 31 predicate places. [2025-02-08 14:07:44,874 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 64 transitions, 394 flow [2025-02-08 14:07:44,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:07:44,874 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:44,874 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:44,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 14:07:44,874 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:44,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:44,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1043467513, now seen corresponding path program 4 times [2025-02-08 14:07:44,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:44,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780997119] [2025-02-08 14:07:44,874 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 14:07:44,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:44,882 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 46 statements into 2 equivalence classes. [2025-02-08 14:07:44,882 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 12 of 46 statements. [2025-02-08 14:07:44,882 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-02-08 14:07:44,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:44,897 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 14:07:44,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:44,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780997119] [2025-02-08 14:07:44,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780997119] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:44,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:44,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:07:44,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669791674] [2025-02-08 14:07:44,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:44,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:44,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:44,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:44,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:44,898 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2025-02-08 14:07:44,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 64 transitions, 394 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:07:44,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:44,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2025-02-08 14:07:44,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:45,080 INFO L124 PetriNetUnfolderBase]: 947/1873 cut-off events. [2025-02-08 14:07:45,080 INFO L125 PetriNetUnfolderBase]: For 2742/2742 co-relation queries the response was YES. [2025-02-08 14:07:45,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5137 conditions, 1873 events. 947/1873 cut-off events. For 2742/2742 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 11260 event pairs, 481 based on Foata normal form. 24/1855 useless extension candidates. Maximal degree in co-relation 4992. Up to 1281 conditions per place. [2025-02-08 14:07:45,087 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 71 selfloop transitions, 6 changer transitions 3/89 dead transitions. [2025-02-08 14:07:45,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 89 transitions, 670 flow [2025-02-08 14:07:45,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:45,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:45,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2025-02-08 14:07:45,088 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6722222222222223 [2025-02-08 14:07:45,088 INFO L175 Difference]: Start difference. First operand has 74 places, 64 transitions, 394 flow. Second operand 4 states and 121 transitions. [2025-02-08 14:07:45,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 89 transitions, 670 flow [2025-02-08 14:07:45,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 89 transitions, 670 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:07:45,091 INFO L231 Difference]: Finished difference. Result has 80 places, 68 transitions, 468 flow [2025-02-08 14:07:45,091 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=468, PETRI_PLACES=80, PETRI_TRANSITIONS=68} [2025-02-08 14:07:45,091 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 37 predicate places. [2025-02-08 14:07:45,091 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 68 transitions, 468 flow [2025-02-08 14:07:45,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:07:45,092 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:45,092 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:45,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 14:07:45,092 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:45,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:45,092 INFO L85 PathProgramCache]: Analyzing trace with hash -959272904, now seen corresponding path program 1 times [2025-02-08 14:07:45,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:45,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096900704] [2025-02-08 14:07:45,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:45,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:45,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-08 14:07:45,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-08 14:07:45,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:45,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:45,154 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 14:07:45,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:45,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096900704] [2025-02-08 14:07:45,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096900704] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:45,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:45,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:07:45,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575828623] [2025-02-08 14:07:45,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:45,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:45,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:45,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:45,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:45,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2025-02-08 14:07:45,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 68 transitions, 468 flow. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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 14:07:45,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:45,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2025-02-08 14:07:45,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:45,297 INFO L124 PetriNetUnfolderBase]: 870/1713 cut-off events. [2025-02-08 14:07:45,298 INFO L125 PetriNetUnfolderBase]: For 3490/3490 co-relation queries the response was YES. [2025-02-08 14:07:45,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4953 conditions, 1713 events. 870/1713 cut-off events. For 3490/3490 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 9859 event pairs, 481 based on Foata normal form. 22/1711 useless extension candidates. Maximal degree in co-relation 4805. Up to 858 conditions per place. [2025-02-08 14:07:45,305 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 79 selfloop transitions, 8 changer transitions 3/99 dead transitions. [2025-02-08 14:07:45,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 99 transitions, 786 flow [2025-02-08 14:07:45,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:45,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:45,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 128 transitions. [2025-02-08 14:07:45,306 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2025-02-08 14:07:45,306 INFO L175 Difference]: Start difference. First operand has 80 places, 68 transitions, 468 flow. Second operand 4 states and 128 transitions. [2025-02-08 14:07:45,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 99 transitions, 786 flow [2025-02-08 14:07:45,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 99 transitions, 780 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-08 14:07:45,309 INFO L231 Difference]: Finished difference. Result has 84 places, 68 transitions, 486 flow [2025-02-08 14:07:45,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=486, PETRI_PLACES=84, PETRI_TRANSITIONS=68} [2025-02-08 14:07:45,310 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 41 predicate places. [2025-02-08 14:07:45,310 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 68 transitions, 486 flow [2025-02-08 14:07:45,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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 14:07:45,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:45,310 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:45,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 14:07:45,310 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:45,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:45,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1429984223, now seen corresponding path program 1 times [2025-02-08 14:07:45,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:45,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371594375] [2025-02-08 14:07:45,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:45,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:45,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-08 14:07:45,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-08 14:07:45,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:45,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:45,365 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 14:07:45,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:45,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371594375] [2025-02-08 14:07:45,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371594375] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:45,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:45,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:07:45,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309881559] [2025-02-08 14:07:45,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:45,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:07:45,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:45,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:07:45,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:07:45,373 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2025-02-08 14:07:45,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 68 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 14:07:45,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:45,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2025-02-08 14:07:45,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:45,529 INFO L124 PetriNetUnfolderBase]: 808/1600 cut-off events. [2025-02-08 14:07:45,529 INFO L125 PetriNetUnfolderBase]: For 3974/3974 co-relation queries the response was YES. [2025-02-08 14:07:45,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4793 conditions, 1600 events. 808/1600 cut-off events. For 3974/3974 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 9351 event pairs, 434 based on Foata normal form. 14/1604 useless extension candidates. Maximal degree in co-relation 4643. Up to 964 conditions per place. [2025-02-08 14:07:45,539 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 71 selfloop transitions, 2 changer transitions 2/83 dead transitions. [2025-02-08 14:07:45,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 83 transitions, 731 flow [2025-02-08 14:07:45,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:07:45,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:07:45,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2025-02-08 14:07:45,540 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-08 14:07:45,540 INFO L175 Difference]: Start difference. First operand has 84 places, 68 transitions, 486 flow. Second operand 3 states and 90 transitions. [2025-02-08 14:07:45,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 83 transitions, 731 flow [2025-02-08 14:07:45,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 83 transitions, 699 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-02-08 14:07:45,544 INFO L231 Difference]: Finished difference. Result has 82 places, 68 transitions, 475 flow [2025-02-08 14:07:45,545 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=475, PETRI_PLACES=82, PETRI_TRANSITIONS=68} [2025-02-08 14:07:45,545 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 39 predicate places. [2025-02-08 14:07:45,545 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 68 transitions, 475 flow [2025-02-08 14:07:45,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 14:07:45,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:45,546 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:45,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 14:07:45,546 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:45,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:45,547 INFO L85 PathProgramCache]: Analyzing trace with hash -216006184, now seen corresponding path program 1 times [2025-02-08 14:07:45,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:45,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771896871] [2025-02-08 14:07:45,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:45,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:45,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-08 14:07:45,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-08 14:07:45,575 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:45,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:45,657 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 14:07:45,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:45,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771896871] [2025-02-08 14:07:45,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771896871] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:45,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:45,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:45,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032932393] [2025-02-08 14:07:45,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:45,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:45,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:45,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:45,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:45,662 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2025-02-08 14:07:45,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 68 transitions, 475 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:07:45,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:45,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2025-02-08 14:07:45,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:45,821 INFO L124 PetriNetUnfolderBase]: 808/1608 cut-off events. [2025-02-08 14:07:45,821 INFO L125 PetriNetUnfolderBase]: For 3144/3144 co-relation queries the response was YES. [2025-02-08 14:07:45,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4856 conditions, 1608 events. 808/1608 cut-off events. For 3144/3144 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 9416 event pairs, 112 based on Foata normal form. 10/1615 useless extension candidates. Maximal degree in co-relation 4705. Up to 1142 conditions per place. [2025-02-08 14:07:45,827 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 68 selfloop transitions, 3 changer transitions 2/81 dead transitions. [2025-02-08 14:07:45,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 81 transitions, 683 flow [2025-02-08 14:07:45,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:45,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-02-08 14:07:45,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5888888888888889 [2025-02-08 14:07:45,828 INFO L175 Difference]: Start difference. First operand has 82 places, 68 transitions, 475 flow. Second operand 4 states and 106 transitions. [2025-02-08 14:07:45,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 81 transitions, 683 flow [2025-02-08 14:07:45,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 81 transitions, 679 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:45,834 INFO L231 Difference]: Finished difference. Result has 82 places, 67 transitions, 473 flow [2025-02-08 14:07:45,834 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=473, PETRI_PLACES=82, PETRI_TRANSITIONS=67} [2025-02-08 14:07:45,834 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 39 predicate places. [2025-02-08 14:07:45,834 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 67 transitions, 473 flow [2025-02-08 14:07:45,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:07:45,835 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:45,835 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:45,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 14:07:45,835 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2025-02-08 14:07:45,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:45,837 INFO L85 PathProgramCache]: Analyzing trace with hash 174210289, now seen corresponding path program 1 times [2025-02-08 14:07:45,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:45,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083197005] [2025-02-08 14:07:45,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:45,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:45,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-08 14:07:45,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-08 14:07:45,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:45,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:45,916 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 14:07:45,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:45,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083197005] [2025-02-08 14:07:45,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083197005] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:45,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:45,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:45,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536261981] [2025-02-08 14:07:45,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:45,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:45,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:45,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:45,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:45,921 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2025-02-08 14:07:45,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 67 transitions, 473 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:07:45,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:45,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2025-02-08 14:07:45,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:46,066 INFO L124 PetriNetUnfolderBase]: 808/1598 cut-off events. [2025-02-08 14:07:46,066 INFO L125 PetriNetUnfolderBase]: For 3269/3269 co-relation queries the response was YES. [2025-02-08 14:07:46,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4788 conditions, 1598 events. 808/1598 cut-off events. For 3269/3269 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 9337 event pairs, 112 based on Foata normal form. 10/1605 useless extension candidates. Maximal degree in co-relation 4637. Up to 1132 conditions per place. [2025-02-08 14:07:46,070 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2025-02-08 14:07:46,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 80 transitions, 679 flow [2025-02-08 14:07:46,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:46,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:46,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2025-02-08 14:07:46,071 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2025-02-08 14:07:46,071 INFO L175 Difference]: Start difference. First operand has 82 places, 67 transitions, 473 flow. Second operand 4 states and 105 transitions. [2025-02-08 14:07:46,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 80 transitions, 679 flow [2025-02-08 14:07:46,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 80 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:46,073 INFO L231 Difference]: Finished difference. Result has 82 places, 0 transitions, 0 flow [2025-02-08 14:07:46,073 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=82, PETRI_TRANSITIONS=0} [2025-02-08 14:07:46,074 INFO L279 CegarLoopForPetriNet]: 43 programPoint places, 39 predicate places. [2025-02-08 14:07:46,074 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 0 transitions, 0 flow [2025-02-08 14:07:46,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 14:07:46,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2025-02-08 14:07:46,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2025-02-08 14:07:46,076 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2025-02-08 14:07:46,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2025-02-08 14:07:46,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2025-02-08 14:07:46,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2025-02-08 14:07:46,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2025-02-08 14:07:46,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2025-02-08 14:07:46,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2025-02-08 14:07:46,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2025-02-08 14:07:46,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 16 remaining) [2025-02-08 14:07:46,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2025-02-08 14:07:46,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2025-02-08 14:07:46,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2025-02-08 14:07:46,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2025-02-08 14:07:46,077 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2025-02-08 14:07:46,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-08 14:07:46,078 INFO L422 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:46,082 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:07:46,082 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:07:46,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:07:46 BasicIcfg [2025-02-08 14:07:46,087 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:07:46,087 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:07:46,087 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:07:46,087 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:07:46,088 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:37" (3/4) ... [2025-02-08 14:07:46,089 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:07:46,090 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 14:07:46,090 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 14:07:46,093 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 84 nodes and edges [2025-02-08 14:07:46,095 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2025-02-08 14:07:46,095 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2025-02-08 14:07:46,095 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 14:07:46,156 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:07:46,156 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:07:46,156 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:07:46,157 INFO L158 Benchmark]: Toolchain (without parser) took 9327.15ms. Allocated memory was 142.6MB in the beginning and 436.2MB in the end (delta: 293.6MB). Free memory was 106.0MB in the beginning and 352.5MB in the end (delta: -246.5MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2025-02-08 14:07:46,157 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory was 126.5MB in the beginning and 126.2MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:07:46,158 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.02ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 94.3MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:07:46,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.83ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 92.3MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:07:46,158 INFO L158 Benchmark]: Boogie Preprocessor took 74.47ms. Allocated memory is still 142.6MB. Free memory was 92.3MB in the beginning and 90.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:07:46,159 INFO L158 Benchmark]: IcfgBuilder took 550.25ms. Allocated memory is still 142.6MB. Free memory was 90.2MB in the beginning and 45.1MB in the end (delta: 45.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-08 14:07:46,159 INFO L158 Benchmark]: TraceAbstraction took 8340.87ms. Allocated memory was 142.6MB in the beginning and 436.2MB in the end (delta: 293.6MB). Free memory was 44.0MB in the beginning and 356.7MB in the end (delta: -312.6MB). Peak memory consumption was 202.2MB. Max. memory is 16.1GB. [2025-02-08 14:07:46,159 INFO L158 Benchmark]: Witness Printer took 69.43ms. Allocated memory is still 436.2MB. Free memory was 356.7MB in the beginning and 352.5MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:07:46,160 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory was 126.5MB in the beginning and 126.2MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.02ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 94.3MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.83ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 92.3MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.47ms. Allocated memory is still 142.6MB. Free memory was 92.3MB in the beginning and 90.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 550.25ms. Allocated memory is still 142.6MB. Free memory was 90.2MB in the beginning and 45.1MB in the end (delta: 45.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8340.87ms. Allocated memory was 142.6MB in the beginning and 436.2MB in the end (delta: 293.6MB). Free memory was 44.0MB in the beginning and 356.7MB in the end (delta: -312.6MB). Peak memory consumption was 202.2MB. Max. memory is 16.1GB. * Witness Printer took 69.43ms. Allocated memory is still 436.2MB. Free memory was 356.7MB in the beginning and 352.5MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 60 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.3s, OverallIterations: 20, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 719 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 645 mSDsluCounter, 410 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 377 mSDsCounter, 121 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2809 IncrementalHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 121 mSolverCounterUnsat, 33 mSDtfsCounter, 2809 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 281 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=486occurred in iteration=17, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 746 NumberOfCodeBlocks, 628 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 787 ConstructedInterpolants, 0 QuantifiedInterpolants, 1378 SizeOfPredicates, 16 NumberOfNonLiveVariables, 860 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 30 InterpolantComputations, 16 PerfectInterpolantSequences, 989/1057 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:07:46,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE