./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 e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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 0.3.0-?-e2fb8be-m [2025-03-09 06:33:50,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:33:50,192 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:33:50,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:33:50,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:33:50,223 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:33:50,224 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:33:50,225 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:33:50,225 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:33:50,225 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:33:50,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:33:50,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:33:50,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:33:50,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:33:50,227 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:33:50,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:33:50,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:33:50,227 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:33:50,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:33:50,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:33:50,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:33:50,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:33:50,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:33:50,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:33:50,228 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:33:50,228 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:33:50,228 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:33:50,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:33:50,228 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:33:50,228 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:33:50,229 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:33:50,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:33:50,229 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:33:50,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:33:50,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:33:50,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:33:50,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:33:50,229 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:33:50,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:33:50,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:33:50,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:33:50,230 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:33:50,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:33:50,230 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:33:50,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:33:50,230 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/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 [2025-03-09 06:33:50,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:33:50,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:33:50,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:33:50,498 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:33:50,498 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:33:50,500 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2025-03-09 06:33:51,656 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/043a6d66a/b737956321094369a0a5ac7729f08e21/FLAG26356754e [2025-03-09 06:33:51,903 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:33:51,906 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2025-03-09 06:33:51,921 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/043a6d66a/b737956321094369a0a5ac7729f08e21/FLAG26356754e [2025-03-09 06:33:52,230 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/043a6d66a/b737956321094369a0a5ac7729f08e21 [2025-03-09 06:33:52,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:33:52,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:33:52,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:33:52,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:33:52,239 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:33:52,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a21c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52, skipping insertion in model container [2025-03-09 06:33:52,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:33:52,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:33:52,696 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:33:52,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:33:52,809 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:33:52,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52 WrapperNode [2025-03-09 06:33:52,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:33:52,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:33:52,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:33:52,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:33:52,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,861 INFO L138 Inliner]: procedures = 271, calls = 38, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 100 [2025-03-09 06:33:52,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:33:52,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:33:52,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:33:52,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:33:52,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,888 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]. [2025-03-09 06:33:52,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,897 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,898 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,900 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:33:52,910 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:33:52,910 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:33:52,910 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:33:52,914 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52" (1/1) ... [2025-03-09 06:33:52,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:33:52,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:33:52,941 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) [2025-03-09 06:33:52,943 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 [2025-03-09 06:33:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2025-03-09 06:33:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2025-03-09 06:33:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-09 06:33:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-09 06:33:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:33:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2025-03-09 06:33:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2025-03-09 06:33:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure process [2025-03-09 06:33:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2025-03-09 06:33:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:33:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:33:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 06:33:52,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:33:52,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:33:52,962 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:33:53,192 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:33:53,194 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:33:53,423 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:33:53,424 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:33:53,572 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:33:53,573 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:33:53,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:33:53 BoogieIcfgContainer [2025-03-09 06:33:53,574 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:33:53,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:33:53,576 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:33:53,579 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:33:53,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:33:52" (1/3) ... [2025-03-09 06:33:53,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1bb1b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:33:53, skipping insertion in model container [2025-03-09 06:33:53,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:52" (2/3) ... [2025-03-09 06:33:53,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1bb1b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:33:53, skipping insertion in model container [2025-03-09 06:33:53,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:33:53" (3/3) ... [2025-03-09 06:33:53,583 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2025-03-09 06:33:53,595 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:33:53,596 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_04-priv_multi_true.i that has 4 procedures, 66 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2025-03-09 06:33:53,597 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:33:53,654 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-09 06:33:53,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 71 transitions, 154 flow [2025-03-09 06:33:53,712 INFO L124 PetriNetUnfolderBase]: 6/68 cut-off events. [2025-03-09 06:33:53,715 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:33:53,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 6/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 172 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2025-03-09 06:33:53,721 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 71 transitions, 154 flow [2025-03-09 06:33:53,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 68 transitions, 145 flow [2025-03-09 06:33:53,730 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:33:53,738 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;@3fc87630, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:33:53,739 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2025-03-09 06:33:53,748 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:33:53,748 INFO L124 PetriNetUnfolderBase]: 1/28 cut-off events. [2025-03-09 06:33:53,748 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:33:53,749 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:53,749 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:53,749 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-09 06:33:53,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:53,754 INFO L85 PathProgramCache]: Analyzing trace with hash -259542112, now seen corresponding path program 1 times [2025-03-09 06:33:53,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:53,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709702126] [2025-03-09 06:33:53,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:53,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:53,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:33:53,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:33:53,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:53,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:54,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:54,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:54,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709702126] [2025-03-09 06:33:54,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709702126] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:54,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:54,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:33:54,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253111977] [2025-03-09 06:33:54,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:54,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:54,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:54,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:54,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:54,124 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 71 [2025-03-09 06:33:54,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 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) [2025-03-09 06:33:54,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:54,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 71 [2025-03-09 06:33:54,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:57,442 INFO L124 PetriNetUnfolderBase]: 33535/54217 cut-off events. [2025-03-09 06:33:57,442 INFO L125 PetriNetUnfolderBase]: For 191/191 co-relation queries the response was YES. [2025-03-09 06:33:57,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99122 conditions, 54217 events. 33535/54217 cut-off events. For 191/191 co-relation queries the response was YES. Maximal size of possible extension queue 1212. Compared 430050 event pairs, 11329 based on Foata normal form. 392/50621 useless extension candidates. Maximal degree in co-relation 99111. Up to 20396 conditions per place. [2025-03-09 06:33:57,758 INFO L140 encePairwiseOnDemand]: 61/71 looper letters, 120 selfloop transitions, 9 changer transitions 0/153 dead transitions. [2025-03-09 06:33:57,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 153 transitions, 582 flow [2025-03-09 06:33:57,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:33:57,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:33:57,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 272 transitions. [2025-03-09 06:33:57,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7661971830985915 [2025-03-09 06:33:57,772 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 145 flow. Second operand 5 states and 272 transitions. [2025-03-09 06:33:57,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 153 transitions, 582 flow [2025-03-09 06:33:57,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 153 transitions, 576 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:33:57,783 INFO L231 Difference]: Finished difference. Result has 75 places, 74 transitions, 206 flow [2025-03-09 06:33:57,784 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=206, PETRI_PLACES=75, PETRI_TRANSITIONS=74} [2025-03-09 06:33:57,788 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 3 predicate places. [2025-03-09 06:33:57,788 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 74 transitions, 206 flow [2025-03-09 06:33:57,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 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) [2025-03-09 06:33:57,789 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:57,789 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:33:57,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:33:57,789 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting generateErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-09 06:33:57,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:57,791 INFO L85 PathProgramCache]: Analyzing trace with hash 396188014, now seen corresponding path program 1 times [2025-03-09 06:33:57,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:57,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574276160] [2025-03-09 06:33:57,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:57,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:57,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:33:57,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:33:57,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:57,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:57,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:57,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574276160] [2025-03-09 06:33:57,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574276160] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:57,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:57,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:33:57,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444973120] [2025-03-09 06:33:57,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:57,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:57,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:57,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:57,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:57,931 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 71 [2025-03-09 06:33:57,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 74 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2025-03-09 06:33:57,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:57,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 71 [2025-03-09 06:33:57,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:34:02,614 INFO L124 PetriNetUnfolderBase]: 54937/91090 cut-off events. [2025-03-09 06:34:02,614 INFO L125 PetriNetUnfolderBase]: For 20058/21083 co-relation queries the response was YES. [2025-03-09 06:34:02,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181428 conditions, 91090 events. 54937/91090 cut-off events. For 20058/21083 co-relation queries the response was YES. Maximal size of possible extension queue 1967. Compared 805220 event pairs, 30096 based on Foata normal form. 2636/88532 useless extension candidates. Maximal degree in co-relation 181414. Up to 48381 conditions per place. [2025-03-09 06:34:03,192 INFO L140 encePairwiseOnDemand]: 65/71 looper letters, 119 selfloop transitions, 3 changer transitions 0/149 dead transitions. [2025-03-09 06:34:03,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 149 transitions, 664 flow [2025-03-09 06:34:03,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:34:03,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:34:03,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 221 transitions. [2025-03-09 06:34:03,195 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.778169014084507 [2025-03-09 06:34:03,195 INFO L175 Difference]: Start difference. First operand has 75 places, 74 transitions, 206 flow. Second operand 4 states and 221 transitions. [2025-03-09 06:34:03,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 149 transitions, 664 flow [2025-03-09 06:34:03,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 149 transitions, 664 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:34:03,306 INFO L231 Difference]: Finished difference. Result has 80 places, 76 transitions, 230 flow [2025-03-09 06:34:03,306 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=206, 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=230, PETRI_PLACES=80, PETRI_TRANSITIONS=76} [2025-03-09 06:34:03,307 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 8 predicate places. [2025-03-09 06:34:03,307 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 76 transitions, 230 flow [2025-03-09 06:34:03,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2025-03-09 06:34:03,308 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:34:03,308 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:34:03,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:34:03,308 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-09 06:34:03,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:34:03,311 INFO L85 PathProgramCache]: Analyzing trace with hash 544129492, now seen corresponding path program 1 times [2025-03-09 06:34:03,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:34:03,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474285345] [2025-03-09 06:34:03,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:34:03,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:34:03,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:34:03,332 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:34:03,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:34:03,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:34:03,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:34:03,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:34:03,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474285345] [2025-03-09 06:34:03,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474285345] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:34:03,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:34:03,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:34:03,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993371377] [2025-03-09 06:34:03,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:34:03,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:34:03,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:34:03,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:34:03,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:34:03,417 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 71 [2025-03-09 06:34:03,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 76 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 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) [2025-03-09 06:34:03,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:34:03,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 71 [2025-03-09 06:34:03,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:34:09,949 INFO L124 PetriNetUnfolderBase]: 74746/119151 cut-off events. [2025-03-09 06:34:09,949 INFO L125 PetriNetUnfolderBase]: For 49426/52028 co-relation queries the response was YES. [2025-03-09 06:34:10,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261754 conditions, 119151 events. 74746/119151 cut-off events. For 49426/52028 co-relation queries the response was YES. Maximal size of possible extension queue 2606. Compared 1035280 event pairs, 19623 based on Foata normal form. 1848/115976 useless extension candidates. Maximal degree in co-relation 261737. Up to 46241 conditions per place. [2025-03-09 06:34:10,965 INFO L140 encePairwiseOnDemand]: 63/71 looper letters, 130 selfloop transitions, 15 changer transitions 0/169 dead transitions. [2025-03-09 06:34:10,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 169 transitions, 796 flow [2025-03-09 06:34:10,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:34:10,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:34:10,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 265 transitions. [2025-03-09 06:34:10,967 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7464788732394366 [2025-03-09 06:34:10,967 INFO L175 Difference]: Start difference. First operand has 80 places, 76 transitions, 230 flow. Second operand 5 states and 265 transitions. [2025-03-09 06:34:10,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 169 transitions, 796 flow [2025-03-09 06:34:11,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 169 transitions, 788 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:34:11,167 INFO L231 Difference]: Finished difference. Result has 87 places, 85 transitions, 354 flow [2025-03-09 06:34:11,167 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=354, PETRI_PLACES=87, PETRI_TRANSITIONS=85} [2025-03-09 06:34:11,167 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 15 predicate places. [2025-03-09 06:34:11,167 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 85 transitions, 354 flow [2025-03-09 06:34:11,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 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) [2025-03-09 06:34:11,167 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:34:11,168 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:34:11,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:34:11,168 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-09 06:34:11,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:34:11,168 INFO L85 PathProgramCache]: Analyzing trace with hash 955553058, now seen corresponding path program 1 times [2025-03-09 06:34:11,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:34:11,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908641500] [2025-03-09 06:34:11,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:34:11,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:34:11,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:34:11,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:34:11,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:34:11,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:34:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:34:11,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:34:11,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908641500] [2025-03-09 06:34:11,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908641500] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:34:11,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:34:11,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:34:11,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856062439] [2025-03-09 06:34:11,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:34:11,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:34:11,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:34:11,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:34:11,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:34:11,314 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2025-03-09 06:34:11,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 85 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2025-03-09 06:34:11,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:34:11,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2025-03-09 06:34:11,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:34:19,483 INFO L124 PetriNetUnfolderBase]: 85703/131330 cut-off events. [2025-03-09 06:34:19,483 INFO L125 PetriNetUnfolderBase]: For 113724/117062 co-relation queries the response was YES. [2025-03-09 06:34:19,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313632 conditions, 131330 events. 85703/131330 cut-off events. For 113724/117062 co-relation queries the response was YES. Maximal size of possible extension queue 2687. Compared 1082028 event pairs, 16793 based on Foata normal form. 1178/127690 useless extension candidates. Maximal degree in co-relation 313610. Up to 46913 conditions per place. [2025-03-09 06:34:20,390 INFO L140 encePairwiseOnDemand]: 61/71 looper letters, 239 selfloop transitions, 21 changer transitions 0/282 dead transitions. [2025-03-09 06:34:20,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 282 transitions, 1410 flow [2025-03-09 06:34:20,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 06:34:20,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-09 06:34:20,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 463 transitions. [2025-03-09 06:34:20,392 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7245696400625978 [2025-03-09 06:34:20,392 INFO L175 Difference]: Start difference. First operand has 87 places, 85 transitions, 354 flow. Second operand 9 states and 463 transitions. [2025-03-09 06:34:20,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 282 transitions, 1410 flow [2025-03-09 06:34:21,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 282 transitions, 1402 flow, removed 4 selfloop flow, removed 0 redundant places. [2025-03-09 06:34:21,027 INFO L231 Difference]: Finished difference. Result has 100 places, 92 transitions, 470 flow [2025-03-09 06:34:21,027 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=470, PETRI_PLACES=100, PETRI_TRANSITIONS=92} [2025-03-09 06:34:21,027 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 28 predicate places. [2025-03-09 06:34:21,027 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 92 transitions, 470 flow [2025-03-09 06:34:21,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2025-03-09 06:34:21,028 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:34:21,028 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:34:21,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:34:21,028 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-09 06:34:21,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:34:21,029 INFO L85 PathProgramCache]: Analyzing trace with hash -442625896, now seen corresponding path program 1 times [2025-03-09 06:34:21,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:34:21,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693360920] [2025-03-09 06:34:21,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:34:21,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:34:21,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:34:21,060 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:34:21,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:34:21,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:34:21,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:34:21,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:34:21,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693360920] [2025-03-09 06:34:21,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693360920] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:34:21,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:34:21,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:34:21,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624552769] [2025-03-09 06:34:21,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:34:21,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:34:21,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:34:21,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:34:21,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:34:21,174 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 71 [2025-03-09 06:34:21,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 92 transitions, 470 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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) [2025-03-09 06:34:21,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:34:21,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 71 [2025-03-09 06:34:21,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand