./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:04:32,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:04:33,003 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:04:33,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:04:33,012 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:04:33,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:04:33,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:04:33,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:04:33,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:04:33,046 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:04:33,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:04:33,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:04:33,048 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:04:33,048 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:04:33,048 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:04:33,048 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:04:33,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:04:33,049 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:04:33,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:04:33,049 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:04:33,049 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:04:33,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:04:33,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:04:33,049 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:04:33,049 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:04:33,050 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:04:33,050 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:04:33,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:04:33,050 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:04:33,050 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:04:33,050 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:04:33,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:04:33,050 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:04:33,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:04:33,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:04:33,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:04:33,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:04:33,051 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:04:33,051 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:04:33,051 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:04:33,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:04:33,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:04:33,051 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:04:33,051 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:04:33,051 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:04:33,051 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 -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2025-02-08 14:04:33,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:04:33,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:04:33,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:04:33,360 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:04:33,361 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:04:33,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2025-02-08 14:04:34,732 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c8acc095b/bc806db1bf3846d2bd329c810caa1355/FLAG967b76cfe [2025-02-08 14:04:35,084 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:04:35,084 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2025-02-08 14:04:35,107 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c8acc095b/bc806db1bf3846d2bd329c810caa1355/FLAG967b76cfe [2025-02-08 14:04:35,127 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c8acc095b/bc806db1bf3846d2bd329c810caa1355 [2025-02-08 14:04:35,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:04:35,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:04:35,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:04:35,133 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:04:35,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:04:35,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3750e0b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35, skipping insertion in model container [2025-02-08 14:04:35,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,183 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:04:35,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:04:35,557 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:04:35,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:04:35,659 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:04:35,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35 WrapperNode [2025-02-08 14:04:35,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:04:35,662 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:04:35,663 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:04:35,663 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:04:35,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,682 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,705 INFO L138 Inliner]: procedures = 271, calls = 38, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 100 [2025-02-08 14:04:35,706 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:04:35,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:04:35,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:04:35,706 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:04:35,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,718 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,734 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2025-02-08 14:04:35,735 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,744 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,745 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,750 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:04:35,754 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:04:35,755 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:04:35,755 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:04:35,756 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35" (1/1) ... [2025-02-08 14:04:35,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:04:35,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:35,792 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 14:04:35,799 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 14:04:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2025-02-08 14:04:35,817 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2025-02-08 14:04:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 14:04:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 14:04:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:04:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2025-02-08 14:04:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2025-02-08 14:04:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure process [2025-02-08 14:04:35,818 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2025-02-08 14:04:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:04:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:04:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 14:04:35,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:04:35,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:04:35,820 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 14:04:36,084 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:04:36,085 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:04:36,362 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:04:36,363 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:04:36,505 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:04:36,506 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:04:36,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:04:36 BoogieIcfgContainer [2025-02-08 14:04:36,506 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:04:36,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:04:36,508 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:04:36,512 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:04:36,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:04:35" (1/3) ... [2025-02-08 14:04:36,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dae469e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:04:36, skipping insertion in model container [2025-02-08 14:04:36,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:04:35" (2/3) ... [2025-02-08 14:04:36,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dae469e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:04:36, skipping insertion in model container [2025-02-08 14:04:36,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:04:36" (3/3) ... [2025-02-08 14:04:36,515 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2025-02-08 14:04:36,528 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:04:36,530 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_04-priv_multi_true.i that has 4 procedures, 68 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2025-02-08 14:04:36,530 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:04:36,606 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 14:04:36,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 73 transitions, 158 flow [2025-02-08 14:04:36,683 INFO L124 PetriNetUnfolderBase]: 6/70 cut-off events. [2025-02-08 14:04:36,686 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:36,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 6/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 172 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2025-02-08 14:04:36,692 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 73 transitions, 158 flow [2025-02-08 14:04:36,698 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 70 transitions, 149 flow [2025-02-08 14:04:36,710 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:04:36,724 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;@3b6b45ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:04:36,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2025-02-08 14:04:36,739 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:04:36,739 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2025-02-08 14:04:36,739 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:04:36,739 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:36,740 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:36,740 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting generateErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:04:36,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:36,746 INFO L85 PathProgramCache]: Analyzing trace with hash -316622607, now seen corresponding path program 1 times [2025-02-08 14:04:36,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:36,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441956060] [2025-02-08 14:04:36,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:36,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:36,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:04:36,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:04:36,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:36,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:37,201 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 14:04:37,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:37,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441956060] [2025-02-08 14:04:37,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441956060] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:37,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:37,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:04:37,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349079197] [2025-02-08 14:04:37,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:37,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:04:37,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:37,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:04:37,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:04:37,246 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2025-02-08 14:04:37,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 14:04:37,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:37,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2025-02-08 14:04:37,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:41,133 INFO L124 PetriNetUnfolderBase]: 27700/42857 cut-off events. [2025-02-08 14:04:41,134 INFO L125 PetriNetUnfolderBase]: For 164/164 co-relation queries the response was YES. [2025-02-08 14:04:41,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79798 conditions, 42857 events. 27700/42857 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 1243. Compared 335359 event pairs, 15149 based on Foata normal form. 3641/44267 useless extension candidates. Maximal degree in co-relation 79787. Up to 23511 conditions per place. [2025-02-08 14:04:41,682 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 103 selfloop transitions, 3 changer transitions 0/133 dead transitions. [2025-02-08 14:04:41,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 133 transitions, 499 flow [2025-02-08 14:04:41,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:04:41,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:04:41,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 235 transitions. [2025-02-08 14:04:41,701 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8047945205479452 [2025-02-08 14:04:41,703 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 149 flow. Second operand 4 states and 235 transitions. [2025-02-08 14:04:41,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 133 transitions, 499 flow [2025-02-08 14:04:41,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 133 transitions, 492 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:04:41,718 INFO L231 Difference]: Finished difference. Result has 74 places, 70 transitions, 166 flow [2025-02-08 14:04:41,720 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=74, PETRI_TRANSITIONS=70} [2025-02-08 14:04:41,725 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 0 predicate places. [2025-02-08 14:04:41,725 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 166 flow [2025-02-08 14:04:41,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 14:04:41,725 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:41,726 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:41,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:04:41,726 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:04:41,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:41,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1480438552, now seen corresponding path program 1 times [2025-02-08 14:04:41,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:41,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624220997] [2025-02-08 14:04:41,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:41,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:41,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:04:41,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:04:41,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:41,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:41,908 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 14:04:41,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:41,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624220997] [2025-02-08 14:04:41,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624220997] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:41,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:41,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:04:41,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024094977] [2025-02-08 14:04:41,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:41,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:04:41,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:41,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:04:41,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:04:41,917 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 73 [2025-02-08 14:04:41,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 14:04:41,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:41,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 73 [2025-02-08 14:04:41,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:47,320 INFO L124 PetriNetUnfolderBase]: 56029/91483 cut-off events. [2025-02-08 14:04:47,320 INFO L125 PetriNetUnfolderBase]: For 13828/15638 co-relation queries the response was YES. [2025-02-08 14:04:47,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180496 conditions, 91483 events. 56029/91483 cut-off events. For 13828/15638 co-relation queries the response was YES. Maximal size of possible extension queue 1922. Compared 791789 event pairs, 19257 based on Foata normal form. 672/86218 useless extension candidates. Maximal degree in co-relation 180485. Up to 33518 conditions per place. [2025-02-08 14:04:47,927 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 128 selfloop transitions, 9 changer transitions 0/163 dead transitions. [2025-02-08 14:04:47,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 163 transitions, 680 flow [2025-02-08 14:04:47,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:04:47,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:04:47,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 276 transitions. [2025-02-08 14:04:47,929 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7561643835616438 [2025-02-08 14:04:47,929 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 166 flow. Second operand 5 states and 276 transitions. [2025-02-08 14:04:47,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 163 transitions, 680 flow [2025-02-08 14:04:48,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 163 transitions, 672 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:04:48,104 INFO L231 Difference]: Finished difference. Result has 81 places, 78 transitions, 232 flow [2025-02-08 14:04:48,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=232, PETRI_PLACES=81, PETRI_TRANSITIONS=78} [2025-02-08 14:04:48,105 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2025-02-08 14:04:48,105 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 78 transitions, 232 flow [2025-02-08 14:04:48,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 14:04:48,105 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:48,105 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:48,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:04:48,106 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:04:48,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:48,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1351044768, now seen corresponding path program 1 times [2025-02-08 14:04:48,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:48,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74076997] [2025-02-08 14:04:48,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:48,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:48,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:04:48,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:04:48,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:48,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:48,249 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 14:04:48,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:48,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74076997] [2025-02-08 14:04:48,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74076997] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:48,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:48,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:04:48,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435257497] [2025-02-08 14:04:48,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:48,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:04:48,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:48,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:04:48,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:04:48,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 73 [2025-02-08 14:04:48,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 14:04:48,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:48,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 73 [2025-02-08 14:04:48,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:55,516 INFO L124 PetriNetUnfolderBase]: 74661/120269 cut-off events. [2025-02-08 14:04:55,516 INFO L125 PetriNetUnfolderBase]: For 46274/48926 co-relation queries the response was YES. [2025-02-08 14:04:55,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260629 conditions, 120269 events. 74661/120269 cut-off events. For 46274/48926 co-relation queries the response was YES. Maximal size of possible extension queue 2574. Compared 1063979 event pairs, 19623 based on Foata normal form. 1848/116941 useless extension candidates. Maximal degree in co-relation 260613. Up to 46241 conditions per place. [2025-02-08 14:04:56,230 INFO L140 encePairwiseOnDemand]: 65/73 looper letters, 130 selfloop transitions, 15 changer transitions 0/171 dead transitions. [2025-02-08 14:04:56,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 171 transitions, 792 flow [2025-02-08 14:04:56,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:04:56,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:04:56,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 275 transitions. [2025-02-08 14:04:56,232 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7534246575342466 [2025-02-08 14:04:56,232 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 232 flow. Second operand 5 states and 275 transitions. [2025-02-08 14:04:56,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 171 transitions, 792 flow [2025-02-08 14:04:56,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 171 transitions, 792 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:04:56,565 INFO L231 Difference]: Finished difference. Result has 89 places, 87 transitions, 358 flow [2025-02-08 14:04:56,565 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=358, PETRI_PLACES=89, PETRI_TRANSITIONS=87} [2025-02-08 14:04:56,566 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 15 predicate places. [2025-02-08 14:04:56,566 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 87 transitions, 358 flow [2025-02-08 14:04:56,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 14:04:56,566 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:56,566 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:04:56,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:04:56,566 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:04:56,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:56,567 INFO L85 PathProgramCache]: Analyzing trace with hash -835716710, now seen corresponding path program 1 times [2025-02-08 14:04:56,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:56,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235343430] [2025-02-08 14:04:56,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:04:56,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:56,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:04:56,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:04:56,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:04:56,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:56,736 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 14:04:56,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:56,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235343430] [2025-02-08 14:04:56,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235343430] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:04:56,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:04:56,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:04:56,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719712340] [2025-02-08 14:04:56,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:04:56,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:04:56,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:56,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:04:56,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:04:56,756 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2025-02-08 14:04:56,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 87 transitions, 358 flow. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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 14:04:56,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:56,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2025-02-08 14:04:56,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:05:05,448 INFO L124 PetriNetUnfolderBase]: 85619/132393 cut-off events. [2025-02-08 14:05:05,448 INFO L125 PetriNetUnfolderBase]: For 113414/116854 co-relation queries the response was YES. [2025-02-08 14:05:05,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314695 conditions, 132393 events. 85619/132393 cut-off events. For 113414/116854 co-relation queries the response was YES. Maximal size of possible extension queue 2638. Compared 1111341 event pairs, 16793 based on Foata normal form. 1178/128673 useless extension candidates. Maximal degree in co-relation 314673. Up to 46913 conditions per place. [2025-02-08 14:05:06,599 INFO L140 encePairwiseOnDemand]: 63/73 looper letters, 239 selfloop transitions, 21 changer transitions 0/284 dead transitions. [2025-02-08 14:05:06,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 284 transitions, 1414 flow [2025-02-08 14:05:06,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 14:05:06,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 14:05:06,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 481 transitions. [2025-02-08 14:05:06,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7321156773211568 [2025-02-08 14:05:06,602 INFO L175 Difference]: Start difference. First operand has 89 places, 87 transitions, 358 flow. Second operand 9 states and 481 transitions. [2025-02-08 14:05:06,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 284 transitions, 1414 flow [2025-02-08 14:05:07,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 284 transitions, 1406 flow, removed 4 selfloop flow, removed 0 redundant places. [2025-02-08 14:05:07,181 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 474 flow [2025-02-08 14:05:07,183 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=474, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2025-02-08 14:05:07,184 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 28 predicate places. [2025-02-08 14:05:07,184 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 474 flow [2025-02-08 14:05:07,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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 14:05:07,185 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:05:07,185 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:05:07,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:05:07,185 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-02-08 14:05:07,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:05:07,185 INFO L85 PathProgramCache]: Analyzing trace with hash -137413852, now seen corresponding path program 1 times [2025-02-08 14:05:07,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:05:07,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315941281] [2025-02-08 14:05:07,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:05:07,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:05:07,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:05:07,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:05:07,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:05:07,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:05:07,305 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 14:05:07,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:05:07,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315941281] [2025-02-08 14:05:07,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315941281] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:05:07,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:05:07,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:05:07,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108006310] [2025-02-08 14:05:07,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:05:07,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:05:07,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:05:07,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:05:07,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:05:07,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 73 [2025-02-08 14:05:07,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 474 flow. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 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 14:05:07,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:05:07,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 73 [2025-02-08 14:05:07,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand