./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 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:17:05,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:17:05,440 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:17:05,446 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:17:05,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:17:05,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:17:05,478 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:17:05,479 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:17:05,479 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:17:05,480 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:17:05,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:17:05,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:17:05,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:17:05,483 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:17:05,484 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:17:05,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:17:05,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:17:05,485 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:17:05,485 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:17:05,485 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:17:05,485 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:17:05,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:17:05,489 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:17:05,490 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:17:05,490 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:17:05,490 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:17:05,490 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:17:05,491 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:17:05,491 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:17:05,491 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:17:05,491 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:17:05,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:17:05,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:17:05,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:17:05,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:17:05,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:17:05,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:17:05,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:17:05,495 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:17:05,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:17:05,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:17:05,496 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:17:05,496 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:17:05,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:17:05,497 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2024-11-10 22:17:05,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:17:05,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:17:05,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:17:05,769 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:17:05,770 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:17:05,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2024-11-10 22:17:07,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:17:07,459 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:17:07,460 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2024-11-10 22:17:07,477 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0b488dd7/a74d5445f6b946d99120d8490f6dc58e/FLAGd4072962e [2024-11-10 22:17:07,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0b488dd7/a74d5445f6b946d99120d8490f6dc58e [2024-11-10 22:17:07,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:17:07,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:17:07,785 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:17:07,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:17:07,790 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:17:07,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:17:07" (1/1) ... [2024-11-10 22:17:07,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee16d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:07, skipping insertion in model container [2024-11-10 22:17:07,791 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:17:07" (1/1) ... [2024-11-10 22:17:07,837 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:17:08,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:17:08,328 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:17:08,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:17:08,475 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:17:08,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08 WrapperNode [2024-11-10 22:17:08,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:17:08,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:17:08,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:17:08,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:17:08,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08" (1/1) ... [2024-11-10 22:17:08,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08" (1/1) ... [2024-11-10 22:17:08,532 INFO L138 Inliner]: procedures = 271, calls = 38, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 104 [2024-11-10 22:17:08,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:17:08,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:17:08,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:17:08,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:17:08,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08" (1/1) ... [2024-11-10 22:17:08,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08" (1/1) ... [2024-11-10 22:17:08,548 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08" (1/1) ... [2024-11-10 22:17:08,566 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]. [2024-11-10 22:17:08,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08" (1/1) ... [2024-11-10 22:17:08,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08" (1/1) ... [2024-11-10 22:17:08,579 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08" (1/1) ... [2024-11-10 22:17:08,580 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08" (1/1) ... [2024-11-10 22:17:08,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08" (1/1) ... [2024-11-10 22:17:08,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08" (1/1) ... [2024-11-10 22:17:08,590 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:17:08,591 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:17:08,591 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:17:08,592 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:17:08,592 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08" (1/1) ... [2024-11-10 22:17:08,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:17:08,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:08,643 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 22:17:08,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 22:17:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2024-11-10 22:17:08,695 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2024-11-10 22:17:08,695 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 22:17:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 22:17:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:17:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2024-11-10 22:17:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2024-11-10 22:17:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure process [2024-11-10 22:17:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2024-11-10 22:17:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:17:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:17:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 22:17:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:17:08,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:17:08,703 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:17:08,955 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:17:08,958 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:17:09,193 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:17:09,194 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:17:09,337 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:17:09,337 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:17:09,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:17:09 BoogieIcfgContainer [2024-11-10 22:17:09,338 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:17:09,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:17:09,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:17:09,343 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:17:09,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:17:07" (1/3) ... [2024-11-10 22:17:09,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a20d32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:17:09, skipping insertion in model container [2024-11-10 22:17:09,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:08" (2/3) ... [2024-11-10 22:17:09,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a20d32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:17:09, skipping insertion in model container [2024-11-10 22:17:09,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:17:09" (3/3) ... [2024-11-10 22:17:09,346 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2024-11-10 22:17:09,362 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:17:09,363 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-10 22:17:09,363 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:17:09,423 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:17:09,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 85 transitions, 182 flow [2024-11-10 22:17:09,509 INFO L124 PetriNetUnfolderBase]: 10/82 cut-off events. [2024-11-10 22:17:09,510 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:17:09,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 10/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 229 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2024-11-10 22:17:09,515 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 85 transitions, 182 flow [2024-11-10 22:17:09,519 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 82 transitions, 173 flow [2024-11-10 22:17:09,534 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:17:09,541 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;@209d0516, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:17:09,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-10 22:17:09,557 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:17:09,558 INFO L124 PetriNetUnfolderBase]: 5/42 cut-off events. [2024-11-10 22:17:09,558 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:17:09,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:09,559 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:09,560 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting generateErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 22:17:09,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:09,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1738391959, now seen corresponding path program 1 times [2024-11-10 22:17:09,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:09,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66521095] [2024-11-10 22:17:09,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:09,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:10,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:10,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66521095] [2024-11-10 22:17:10,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66521095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:10,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:10,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:17:10,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431083860] [2024-11-10 22:17:10,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:10,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:17:10,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:10,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:17:10,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:17:10,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 85 [2024-11-10 22:17:10,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 82 transitions, 173 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:10,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:10,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 85 [2024-11-10 22:17:10,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:14,806 INFO L124 PetriNetUnfolderBase]: 30826/48286 cut-off events. [2024-11-10 22:17:14,807 INFO L125 PetriNetUnfolderBase]: For 183/183 co-relation queries the response was YES. [2024-11-10 22:17:14,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88640 conditions, 48286 events. 30826/48286 cut-off events. For 183/183 co-relation queries the response was YES. Maximal size of possible extension queue 1513. Compared 389240 event pairs, 19033 based on Foata normal form. 10188/55505 useless extension candidates. Maximal degree in co-relation 88629. Up to 26618 conditions per place. [2024-11-10 22:17:15,368 INFO L140 encePairwiseOnDemand]: 73/85 looper letters, 104 selfloop transitions, 3 changer transitions 0/139 dead transitions. [2024-11-10 22:17:15,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 139 transitions, 513 flow [2024-11-10 22:17:15,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:17:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:17:15,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 267 transitions. [2024-11-10 22:17:15,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7852941176470588 [2024-11-10 22:17:15,385 INFO L175 Difference]: Start difference. First operand has 82 places, 82 transitions, 173 flow. Second operand 4 states and 267 transitions. [2024-11-10 22:17:15,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 139 transitions, 513 flow [2024-11-10 22:17:15,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 139 transitions, 506 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:17:15,400 INFO L231 Difference]: Finished difference. Result has 80 places, 76 transitions, 178 flow [2024-11-10 22:17:15,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=80, PETRI_TRANSITIONS=76} [2024-11-10 22:17:15,408 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, -2 predicate places. [2024-11-10 22:17:15,409 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 76 transitions, 178 flow [2024-11-10 22:17:15,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:15,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:15,410 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:15,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:17:15,410 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 22:17:15,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:15,411 INFO L85 PathProgramCache]: Analyzing trace with hash -803316521, now seen corresponding path program 1 times [2024-11-10 22:17:15,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:15,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196947584] [2024-11-10 22:17:15,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:15,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:15,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:15,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:15,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196947584] [2024-11-10 22:17:15,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196947584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:15,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:15,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:17:15,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488069727] [2024-11-10 22:17:15,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:15,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:17:15,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:15,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:17:15,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:17:15,553 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 85 [2024-11-10 22:17:15,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 76 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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) [2024-11-10 22:17:15,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:15,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 85 [2024-11-10 22:17:15,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:22,576 INFO L124 PetriNetUnfolderBase]: 56026/93603 cut-off events. [2024-11-10 22:17:22,577 INFO L125 PetriNetUnfolderBase]: For 12535/14215 co-relation queries the response was YES. [2024-11-10 22:17:22,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181537 conditions, 93603 events. 56026/93603 cut-off events. For 12535/14215 co-relation queries the response was YES. Maximal size of possible extension queue 2175. Compared 854693 event pairs, 19257 based on Foata normal form. 672/87942 useless extension candidates. Maximal degree in co-relation 181526. Up to 33518 conditions per place. [2024-11-10 22:17:23,231 INFO L140 encePairwiseOnDemand]: 77/85 looper letters, 128 selfloop transitions, 9 changer transitions 0/169 dead transitions. [2024-11-10 22:17:23,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 169 transitions, 686 flow [2024-11-10 22:17:23,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:17:23,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:17:23,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 306 transitions. [2024-11-10 22:17:23,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.72 [2024-11-10 22:17:23,235 INFO L175 Difference]: Start difference. First operand has 80 places, 76 transitions, 178 flow. Second operand 5 states and 306 transitions. [2024-11-10 22:17:23,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 169 transitions, 686 flow [2024-11-10 22:17:23,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 169 transitions, 678 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:17:23,436 INFO L231 Difference]: Finished difference. Result has 87 places, 84 transitions, 244 flow [2024-11-10 22:17:23,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=244, PETRI_PLACES=87, PETRI_TRANSITIONS=84} [2024-11-10 22:17:23,437 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2024-11-10 22:17:23,437 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 84 transitions, 244 flow [2024-11-10 22:17:23,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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) [2024-11-10 22:17:23,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:23,438 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:23,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:17:23,438 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 22:17:23,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:23,439 INFO L85 PathProgramCache]: Analyzing trace with hash 866992021, now seen corresponding path program 1 times [2024-11-10 22:17:23,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:23,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853607032] [2024-11-10 22:17:23,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:23,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:23,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:23,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:23,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853607032] [2024-11-10 22:17:23,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853607032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:23,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:23,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:17:23,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937968807] [2024-11-10 22:17:23,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:23,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:17:23,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:23,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:17:23,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:17:23,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 85 [2024-11-10 22:17:23,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 84 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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) [2024-11-10 22:17:23,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:23,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 85 [2024-11-10 22:17:23,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:32,453 INFO L124 PetriNetUnfolderBase]: 74671/122714 cut-off events. [2024-11-10 22:17:32,453 INFO L125 PetriNetUnfolderBase]: For 44389/47023 co-relation queries the response was YES. [2024-11-10 22:17:32,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261443 conditions, 122714 events. 74671/122714 cut-off events. For 44389/47023 co-relation queries the response was YES. Maximal size of possible extension queue 2825. Compared 1141547 event pairs, 19623 based on Foata normal form. 1848/118986 useless extension candidates. Maximal degree in co-relation 261427. Up to 46241 conditions per place. [2024-11-10 22:17:33,374 INFO L140 encePairwiseOnDemand]: 77/85 looper letters, 130 selfloop transitions, 15 changer transitions 0/177 dead transitions. [2024-11-10 22:17:33,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 177 transitions, 798 flow [2024-11-10 22:17:33,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:17:33,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:17:33,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 305 transitions. [2024-11-10 22:17:33,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7176470588235294 [2024-11-10 22:17:33,378 INFO L175 Difference]: Start difference. First operand has 87 places, 84 transitions, 244 flow. Second operand 5 states and 305 transitions. [2024-11-10 22:17:33,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 177 transitions, 798 flow [2024-11-10 22:17:34,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 177 transitions, 798 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:17:34,008 INFO L231 Difference]: Finished difference. Result has 95 places, 93 transitions, 370 flow [2024-11-10 22:17:34,008 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=370, PETRI_PLACES=95, PETRI_TRANSITIONS=93} [2024-11-10 22:17:34,009 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 13 predicate places. [2024-11-10 22:17:34,009 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 93 transitions, 370 flow [2024-11-10 22:17:34,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 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) [2024-11-10 22:17:34,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:34,010 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:34,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:17:34,010 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 22:17:34,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:34,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1373564711, now seen corresponding path program 1 times [2024-11-10 22:17:34,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:34,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795723019] [2024-11-10 22:17:34,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:34,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:34,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:34,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:34,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795723019] [2024-11-10 22:17:34,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795723019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:34,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:34,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:17:34,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703609947] [2024-11-10 22:17:34,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:34,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:17:34,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:34,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:17:34,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:17:34,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 85 [2024-11-10 22:17:34,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 93 transitions, 370 flow. Second operand has 6 states, 6 states have (on average 34.666666666666664) internal successors, (208), 6 states have internal predecessors, (208), 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) [2024-11-10 22:17:34,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:34,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 85 [2024-11-10 22:17:34,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:44,560 INFO L124 PetriNetUnfolderBase]: 85628/134711 cut-off events. [2024-11-10 22:17:44,560 INFO L125 PetriNetUnfolderBase]: For 111116/114537 co-relation queries the response was YES. [2024-11-10 22:17:45,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315000 conditions, 134711 events. 85628/134711 cut-off events. For 111116/114537 co-relation queries the response was YES. Maximal size of possible extension queue 2962. Compared 1192052 event pairs, 16793 based on Foata normal form. 1178/130557 useless extension candidates. Maximal degree in co-relation 314978. Up to 46913 conditions per place. [2024-11-10 22:17:45,901 INFO L140 encePairwiseOnDemand]: 75/85 looper letters, 239 selfloop transitions, 21 changer transitions 0/290 dead transitions. [2024-11-10 22:17:45,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 290 transitions, 1412 flow [2024-11-10 22:17:45,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:17:45,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:17:45,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 535 transitions. [2024-11-10 22:17:45,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6993464052287581 [2024-11-10 22:17:45,904 INFO L175 Difference]: Start difference. First operand has 95 places, 93 transitions, 370 flow. Second operand 9 states and 535 transitions. [2024-11-10 22:17:45,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 290 transitions, 1412 flow [2024-11-10 22:17:46,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 290 transitions, 1404 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-10 22:17:46,535 INFO L231 Difference]: Finished difference. Result has 108 places, 100 transitions, 486 flow [2024-11-10 22:17:46,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=486, PETRI_PLACES=108, PETRI_TRANSITIONS=100} [2024-11-10 22:17:46,538 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 26 predicate places. [2024-11-10 22:17:46,539 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 100 transitions, 486 flow [2024-11-10 22:17:46,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.666666666666664) internal successors, (208), 6 states have internal predecessors, (208), 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) [2024-11-10 22:17:46,541 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:46,542 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:46,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:17:46,542 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-10 22:17:46,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:46,543 INFO L85 PathProgramCache]: Analyzing trace with hash 369167321, now seen corresponding path program 1 times [2024-11-10 22:17:46,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:46,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759449937] [2024-11-10 22:17:46,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:46,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:46,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:46,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:46,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759449937] [2024-11-10 22:17:46,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759449937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:46,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:46,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:17:46,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843773643] [2024-11-10 22:17:46,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:46,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:17:46,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:46,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:17:46,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:17:46,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 85 [2024-11-10 22:17:46,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 100 transitions, 486 flow. Second operand has 6 states, 6 states have (on average 34.666666666666664) internal successors, (208), 6 states have internal predecessors, (208), 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) [2024-11-10 22:17:46,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:46,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 85 [2024-11-10 22:17:46,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand