./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c --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/weaver/popl20-more-array-sum-alt.wvr.c -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 cd36b7f18dbd530fce94e0943ff58c16da276fcc41b96fdafde87c3c69036175 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:25:56,191 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:25:56,267 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:25:56,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:25:56,271 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:25:56,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:25:56,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:25:56,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:25:56,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:25:56,302 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:25:56,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:25:56,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:25:56,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:25:56,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:25:56,305 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:25:56,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:25:56,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:25:56,306 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:25:56,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:25:56,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:25:56,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:25:56,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:25:56,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:25:56,311 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:25:56,311 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:25:56,311 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:25:56,311 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:25:56,311 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:25:56,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:25:56,312 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:25:56,312 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:25:56,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:25:56,312 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:25:56,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:25:56,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:25:56,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:25:56,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:25:56,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:25:56,315 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:25:56,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:25:56,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:25:56,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:25:56,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:25:56,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:25:56,316 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd36b7f18dbd530fce94e0943ff58c16da276fcc41b96fdafde87c3c69036175 [2024-11-10 22:25:56,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:25:56,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:25:56,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:25:56,583 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:25:56,584 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:25:56,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c [2024-11-10 22:25:58,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:25:58,260 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:25:58,261 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c [2024-11-10 22:25:58,269 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29f0e094c/96a3649a71e2497689de2afd8f4d4ce1/FLAG23b539197 [2024-11-10 22:25:58,286 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29f0e094c/96a3649a71e2497689de2afd8f4d4ce1 [2024-11-10 22:25:58,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:25:58,291 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:25:58,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:25:58,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:25:58,297 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:25:58,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1bb984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58, skipping insertion in model container [2024-11-10 22:25:58,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,322 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:25:58,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:25:58,585 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:25:58,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:25:58,683 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:25:58,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58 WrapperNode [2024-11-10 22:25:58,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:25:58,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:25:58,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:25:58,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:25:58,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,753 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 232 [2024-11-10 22:25:58,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:25:58,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:25:58,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:25:58,756 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:25:58,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,774 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,797 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-10 22:25:58,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,804 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,805 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,807 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:25:58,812 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:25:58,812 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:25:58,812 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:25:58,813 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58" (1/1) ... [2024-11-10 22:25:58,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:25:58,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:25:58,858 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 22:25:58,864 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 22:25:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:25:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 22:25:58,909 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 22:25:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 22:25:58,909 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 22:25:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 22:25:58,909 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 22:25:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:25:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:25:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:25:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:25:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 22:25:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:25:58,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:25:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:25:58,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:25:58,912 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 22:25:59,009 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:25:59,011 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:25:59,403 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:25:59,403 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:25:59,664 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:25:59,664 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:25:59,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:25:59 BoogieIcfgContainer [2024-11-10 22:25:59,666 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:25:59,669 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:25:59,670 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:25:59,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:25:59,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:25:58" (1/3) ... [2024-11-10 22:25:59,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d72f339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:25:59, skipping insertion in model container [2024-11-10 22:25:59,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:58" (2/3) ... [2024-11-10 22:25:59,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d72f339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:25:59, skipping insertion in model container [2024-11-10 22:25:59,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:25:59" (3/3) ... [2024-11-10 22:25:59,679 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum-alt.wvr.c [2024-11-10 22:25:59,693 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:25:59,693 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-11-10 22:25:59,693 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:25:59,774 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 22:25:59,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 111 transitions, 243 flow [2024-11-10 22:25:59,869 INFO L124 PetriNetUnfolderBase]: 14/108 cut-off events. [2024-11-10 22:25:59,870 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 22:25:59,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 14/108 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 394 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2024-11-10 22:25:59,876 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 111 transitions, 243 flow [2024-11-10 22:25:59,881 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 106 transitions, 227 flow [2024-11-10 22:25:59,892 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:25:59,899 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;@493ea460, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:25:59,901 INFO L334 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-11-10 22:25:59,904 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:25:59,905 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-10 22:25:59,905 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:25:59,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:25:59,906 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:25:59,907 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-10 22:25:59,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:25:59,912 INFO L85 PathProgramCache]: Analyzing trace with hash 20819525, now seen corresponding path program 1 times [2024-11-10 22:25:59,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:25:59,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015220696] [2024-11-10 22:25:59,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:59,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:00,212 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 22:26:00,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:00,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015220696] [2024-11-10 22:26:00,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015220696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:26:00,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:26:00,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:26:00,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361843924] [2024-11-10 22:26:00,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:26:00,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:26:00,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:00,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:26:00,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:26:00,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 111 [2024-11-10 22:26:00,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 106 transitions, 227 flow. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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 22:26:00,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:00,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 111 [2024-11-10 22:26:00,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:01,733 INFO L124 PetriNetUnfolderBase]: 6919/11857 cut-off events. [2024-11-10 22:26:01,733 INFO L125 PetriNetUnfolderBase]: For 294/294 co-relation queries the response was YES. [2024-11-10 22:26:01,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21476 conditions, 11857 events. 6919/11857 cut-off events. For 294/294 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 91979 event pairs, 4904 based on Foata normal form. 668/10902 useless extension candidates. Maximal degree in co-relation 20386. Up to 9267 conditions per place. [2024-11-10 22:26:01,863 INFO L140 encePairwiseOnDemand]: 101/111 looper letters, 44 selfloop transitions, 4 changer transitions 0/105 dead transitions. [2024-11-10 22:26:01,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 105 transitions, 321 flow [2024-11-10 22:26:01,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:26:01,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:26:01,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 295 transitions. [2024-11-10 22:26:01,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6644144144144144 [2024-11-10 22:26:01,879 INFO L175 Difference]: Start difference. First operand has 102 places, 106 transitions, 227 flow. Second operand 4 states and 295 transitions. [2024-11-10 22:26:01,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 105 transitions, 321 flow [2024-11-10 22:26:01,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 105 transitions, 312 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 22:26:01,898 INFO L231 Difference]: Finished difference. Result has 102 places, 105 transitions, 239 flow [2024-11-10 22:26:01,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=102, PETRI_TRANSITIONS=105} [2024-11-10 22:26:01,906 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2024-11-10 22:26:01,907 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 105 transitions, 239 flow [2024-11-10 22:26:01,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 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 22:26:01,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:01,907 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:26:01,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:26:01,908 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-10 22:26:01,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:01,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1283775165, now seen corresponding path program 1 times [2024-11-10 22:26:01,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:01,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350246073] [2024-11-10 22:26:01,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:01,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:02,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:02,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:02,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350246073] [2024-11-10 22:26:02,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350246073] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:26:02,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609610948] [2024-11-10 22:26:02,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:02,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:02,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:26:02,077 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:26:02,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:26:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:02,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:26:02,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:26:02,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:02,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:26:02,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609610948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:26:02,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:26:02,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:26:02,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212451884] [2024-11-10 22:26:02,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:26:02,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:26:02,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:02,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:26:02,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:26:02,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 111 [2024-11-10 22:26:02,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 105 transitions, 239 flow. Second operand has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 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 22:26:02,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:02,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 111 [2024-11-10 22:26:02,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:03,411 INFO L124 PetriNetUnfolderBase]: 6919/11856 cut-off events. [2024-11-10 22:26:03,411 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-11-10 22:26:03,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21345 conditions, 11856 events. 6919/11856 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 91890 event pairs, 4904 based on Foata normal form. 1/10234 useless extension candidates. Maximal degree in co-relation 21316. Up to 9262 conditions per place. [2024-11-10 22:26:03,494 INFO L140 encePairwiseOnDemand]: 106/111 looper letters, 40 selfloop transitions, 7 changer transitions 0/104 dead transitions. [2024-11-10 22:26:03,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 104 transitions, 329 flow [2024-11-10 22:26:03,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:26:03,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:26:03,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 408 transitions. [2024-11-10 22:26:03,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6126126126126126 [2024-11-10 22:26:03,499 INFO L175 Difference]: Start difference. First operand has 102 places, 105 transitions, 239 flow. Second operand 6 states and 408 transitions. [2024-11-10 22:26:03,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 104 transitions, 329 flow [2024-11-10 22:26:03,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 104 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:26:03,502 INFO L231 Difference]: Finished difference. Result has 105 places, 104 transitions, 246 flow [2024-11-10 22:26:03,503 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=246, PETRI_PLACES=105, PETRI_TRANSITIONS=104} [2024-11-10 22:26:03,505 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 3 predicate places. [2024-11-10 22:26:03,506 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 104 transitions, 246 flow [2024-11-10 22:26:03,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 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 22:26:03,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:03,507 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-10 22:26:03,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 22:26:03,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:03,713 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-10 22:26:03,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:03,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1142323925, now seen corresponding path program 1 times [2024-11-10 22:26:03,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:03,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178657011] [2024-11-10 22:26:03,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:03,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:03,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:03,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178657011] [2024-11-10 22:26:03,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178657011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:26:03,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812293486] [2024-11-10 22:26:03,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:03,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:03,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:26:03,874 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:26:03,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:26:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:03,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:26:03,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:26:03,991 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:03,991 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:26:04,043 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:04,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812293486] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:26:04,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:26:04,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-10 22:26:04,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347020373] [2024-11-10 22:26:04,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:26:04,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:26:04,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:04,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:26:04,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:26:04,076 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 111 [2024-11-10 22:26:04,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 104 transitions, 246 flow. Second operand has 12 states, 12 states have (on average 61.083333333333336) internal successors, (733), 12 states have internal predecessors, (733), 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 22:26:04,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:04,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 111 [2024-11-10 22:26:04,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:05,271 INFO L124 PetriNetUnfolderBase]: 6922/11874 cut-off events. [2024-11-10 22:26:05,271 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-10 22:26:05,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21395 conditions, 11874 events. 6922/11874 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 92187 event pairs, 4904 based on Foata normal form. 3/10255 useless extension candidates. Maximal degree in co-relation 21317. Up to 9269 conditions per place. [2024-11-10 22:26:05,333 INFO L140 encePairwiseOnDemand]: 106/111 looper letters, 43 selfloop transitions, 13 changer transitions 0/113 dead transitions. [2024-11-10 22:26:05,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 113 transitions, 412 flow [2024-11-10 22:26:05,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:26:05,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:26:05,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 659 transitions. [2024-11-10 22:26:05,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5936936936936937 [2024-11-10 22:26:05,336 INFO L175 Difference]: Start difference. First operand has 105 places, 104 transitions, 246 flow. Second operand 10 states and 659 transitions. [2024-11-10 22:26:05,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 113 transitions, 412 flow [2024-11-10 22:26:05,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 113 transitions, 382 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-11-10 22:26:05,340 INFO L231 Difference]: Finished difference. Result has 113 places, 113 transitions, 314 flow [2024-11-10 22:26:05,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=314, PETRI_PLACES=113, PETRI_TRANSITIONS=113} [2024-11-10 22:26:05,341 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 11 predicate places. [2024-11-10 22:26:05,342 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 113 transitions, 314 flow [2024-11-10 22:26:05,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 61.083333333333336) internal successors, (733), 12 states have internal predecessors, (733), 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 22:26:05,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:05,343 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:05,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 22:26:05,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-10 22:26:05,548 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-10 22:26:05,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:05,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1108663940, now seen corresponding path program 1 times [2024-11-10 22:26:05,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:05,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327095733] [2024-11-10 22:26:05,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:05,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:05,634 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 22:26:05,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:05,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327095733] [2024-11-10 22:26:05,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327095733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:26:05,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:26:05,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:26:05,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696958038] [2024-11-10 22:26:05,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:26:05,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:26:05,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:05,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:26:05,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:26:05,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 111 [2024-11-10 22:26:05,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 113 transitions, 314 flow. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 22:26:05,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:05,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 111 [2024-11-10 22:26:05,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:07,581 INFO L124 PetriNetUnfolderBase]: 12453/20861 cut-off events. [2024-11-10 22:26:07,581 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-11-10 22:26:07,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37965 conditions, 20861 events. 12453/20861 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 939. Compared 170708 event pairs, 4379 based on Foata normal form. 532/18642 useless extension candidates. Maximal degree in co-relation 37927. Up to 8393 conditions per place. [2024-11-10 22:26:07,817 INFO L140 encePairwiseOnDemand]: 103/111 looper letters, 113 selfloop transitions, 5 changer transitions 0/170 dead transitions. [2024-11-10 22:26:07,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 170 transitions, 670 flow [2024-11-10 22:26:07,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:26:07,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:26:07,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 333 transitions. [2024-11-10 22:26:07,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-10 22:26:07,820 INFO L175 Difference]: Start difference. First operand has 113 places, 113 transitions, 314 flow. Second operand 4 states and 333 transitions. [2024-11-10 22:26:07,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 170 transitions, 670 flow [2024-11-10 22:26:07,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 170 transitions, 659 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-10 22:26:07,824 INFO L231 Difference]: Finished difference. Result has 116 places, 115 transitions, 337 flow [2024-11-10 22:26:07,824 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=337, PETRI_PLACES=116, PETRI_TRANSITIONS=115} [2024-11-10 22:26:07,825 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 14 predicate places. [2024-11-10 22:26:07,825 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 115 transitions, 337 flow [2024-11-10 22:26:07,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 22:26:07,826 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:07,826 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:07,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:26:07,826 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-10 22:26:07,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:07,827 INFO L85 PathProgramCache]: Analyzing trace with hash -8843131, now seen corresponding path program 1 times [2024-11-10 22:26:07,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:07,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479667868] [2024-11-10 22:26:07,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:07,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:07,904 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 22:26:07,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:07,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479667868] [2024-11-10 22:26:07,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479667868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:26:07,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:26:07,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:26:07,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932491825] [2024-11-10 22:26:07,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:26:07,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:26:07,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:07,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:26:07,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:26:07,920 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 111 [2024-11-10 22:26:07,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 115 transitions, 337 flow. Second operand has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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 22:26:07,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:07,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 111 [2024-11-10 22:26:07,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:09,388 INFO L124 PetriNetUnfolderBase]: 10433/19291 cut-off events. [2024-11-10 22:26:09,389 INFO L125 PetriNetUnfolderBase]: For 3880/4364 co-relation queries the response was YES. [2024-11-10 22:26:09,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36240 conditions, 19291 events. 10433/19291 cut-off events. For 3880/4364 co-relation queries the response was YES. Maximal size of possible extension queue 826. Compared 171357 event pairs, 6945 based on Foata normal form. 465/17389 useless extension candidates. Maximal degree in co-relation 36199. Up to 11299 conditions per place. [2024-11-10 22:26:09,523 INFO L140 encePairwiseOnDemand]: 104/111 looper letters, 112 selfloop transitions, 6 changer transitions 0/175 dead transitions. [2024-11-10 22:26:09,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 175 transitions, 702 flow [2024-11-10 22:26:09,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:26:09,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:26:09,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 474 transitions. [2024-11-10 22:26:09,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7117117117117117 [2024-11-10 22:26:09,526 INFO L175 Difference]: Start difference. First operand has 116 places, 115 transitions, 337 flow. Second operand 6 states and 474 transitions. [2024-11-10 22:26:09,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 175 transitions, 702 flow [2024-11-10 22:26:09,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 175 transitions, 702 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:26:09,546 INFO L231 Difference]: Finished difference. Result has 124 places, 118 transitions, 371 flow [2024-11-10 22:26:09,546 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=371, PETRI_PLACES=124, PETRI_TRANSITIONS=118} [2024-11-10 22:26:09,547 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 22 predicate places. [2024-11-10 22:26:09,547 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 118 transitions, 371 flow [2024-11-10 22:26:09,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 5 states have internal predecessors, (311), 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 22:26:09,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:09,548 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:09,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:26:09,548 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-10 22:26:09,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:09,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1127662743, now seen corresponding path program 1 times [2024-11-10 22:26:09,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:09,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990661681] [2024-11-10 22:26:09,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:09,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:09,609 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 22:26:09,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:09,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990661681] [2024-11-10 22:26:09,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990661681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:26:09,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:26:09,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:26:09,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915098623] [2024-11-10 22:26:09,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:26:09,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:26:09,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:09,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:26:09,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:26:09,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 111 [2024-11-10 22:26:09,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 118 transitions, 371 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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 22:26:09,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:09,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 111 [2024-11-10 22:26:09,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:12,041 INFO L124 PetriNetUnfolderBase]: 17676/31101 cut-off events. [2024-11-10 22:26:12,041 INFO L125 PetriNetUnfolderBase]: For 10003/10741 co-relation queries the response was YES. [2024-11-10 22:26:12,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62600 conditions, 31101 events. 17676/31101 cut-off events. For 10003/10741 co-relation queries the response was YES. Maximal size of possible extension queue 1365. Compared 281504 event pairs, 7040 based on Foata normal form. 1093/28023 useless extension candidates. Maximal degree in co-relation 62555. Up to 13149 conditions per place. [2024-11-10 22:26:12,249 INFO L140 encePairwiseOnDemand]: 103/111 looper letters, 119 selfloop transitions, 5 changer transitions 0/177 dead transitions. [2024-11-10 22:26:12,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 177 transitions, 807 flow [2024-11-10 22:26:12,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:26:12,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:26:12,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 327 transitions. [2024-11-10 22:26:12,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7364864864864865 [2024-11-10 22:26:12,251 INFO L175 Difference]: Start difference. First operand has 124 places, 118 transitions, 371 flow. Second operand 4 states and 327 transitions. [2024-11-10 22:26:12,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 177 transitions, 807 flow [2024-11-10 22:26:12,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 177 transitions, 805 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:26:12,274 INFO L231 Difference]: Finished difference. Result has 128 places, 120 transitions, 403 flow [2024-11-10 22:26:12,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=403, PETRI_PLACES=128, PETRI_TRANSITIONS=120} [2024-11-10 22:26:12,276 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 26 predicate places. [2024-11-10 22:26:12,276 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 120 transitions, 403 flow [2024-11-10 22:26:12,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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 22:26:12,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:12,277 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:12,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:26:12,277 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-10 22:26:12,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:12,278 INFO L85 PathProgramCache]: Analyzing trace with hash 597807334, now seen corresponding path program 1 times [2024-11-10 22:26:12,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:12,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764408135] [2024-11-10 22:26:12,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:12,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:12,384 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 22:26:12,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:12,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764408135] [2024-11-10 22:26:12,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764408135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:26:12,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:26:12,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:26:12,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784034683] [2024-11-10 22:26:12,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:26:12,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:26:12,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:12,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:26:12,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:26:12,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 111 [2024-11-10 22:26:12,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 120 transitions, 403 flow. Second operand has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 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 22:26:12,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:12,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 111 [2024-11-10 22:26:12,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:14,077 INFO L124 PetriNetUnfolderBase]: 10446/19948 cut-off events. [2024-11-10 22:26:14,077 INFO L125 PetriNetUnfolderBase]: For 9037/10086 co-relation queries the response was YES. [2024-11-10 22:26:14,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41092 conditions, 19948 events. 10446/19948 cut-off events. For 9037/10086 co-relation queries the response was YES. Maximal size of possible extension queue 936. Compared 184803 event pairs, 7586 based on Foata normal form. 614/18144 useless extension candidates. Maximal degree in co-relation 41044. Up to 13408 conditions per place. [2024-11-10 22:26:14,483 INFO L140 encePairwiseOnDemand]: 104/111 looper letters, 93 selfloop transitions, 6 changer transitions 2/158 dead transitions. [2024-11-10 22:26:14,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 158 transitions, 698 flow [2024-11-10 22:26:14,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:26:14,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:26:14,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 455 transitions. [2024-11-10 22:26:14,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6831831831831832 [2024-11-10 22:26:14,496 INFO L175 Difference]: Start difference. First operand has 128 places, 120 transitions, 403 flow. Second operand 6 states and 455 transitions. [2024-11-10 22:26:14,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 158 transitions, 698 flow [2024-11-10 22:26:14,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 158 transitions, 698 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:26:14,568 INFO L231 Difference]: Finished difference. Result has 135 places, 122 transitions, 430 flow [2024-11-10 22:26:14,568 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=135, PETRI_TRANSITIONS=122} [2024-11-10 22:26:14,569 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 33 predicate places. [2024-11-10 22:26:14,569 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 122 transitions, 430 flow [2024-11-10 22:26:14,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 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 22:26:14,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:14,570 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:14,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:26:14,571 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-10 22:26:14,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:14,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1196145518, now seen corresponding path program 1 times [2024-11-10 22:26:14,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:14,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991213725] [2024-11-10 22:26:14,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:14,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:14,638 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 22:26:14,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:14,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991213725] [2024-11-10 22:26:14,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991213725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:26:14,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:26:14,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:26:14,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942219194] [2024-11-10 22:26:14,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:26:14,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:26:14,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:14,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:26:14,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:26:14,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 111 [2024-11-10 22:26:14,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 122 transitions, 430 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 22:26:14,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:14,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 111 [2024-11-10 22:26:14,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:17,163 INFO L124 PetriNetUnfolderBase]: 17193/31480 cut-off events. [2024-11-10 22:26:17,163 INFO L125 PetriNetUnfolderBase]: For 17365/18830 co-relation queries the response was YES. [2024-11-10 22:26:17,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67901 conditions, 31480 events. 17193/31480 cut-off events. For 17365/18830 co-relation queries the response was YES. Maximal size of possible extension queue 1516. Compared 296846 event pairs, 7158 based on Foata normal form. 1409/29326 useless extension candidates. Maximal degree in co-relation 67851. Up to 13133 conditions per place. [2024-11-10 22:26:17,415 INFO L140 encePairwiseOnDemand]: 103/111 looper letters, 129 selfloop transitions, 5 changer transitions 0/187 dead transitions. [2024-11-10 22:26:17,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 187 transitions, 960 flow [2024-11-10 22:26:17,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:26:17,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:26:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 325 transitions. [2024-11-10 22:26:17,416 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7319819819819819 [2024-11-10 22:26:17,417 INFO L175 Difference]: Start difference. First operand has 135 places, 122 transitions, 430 flow. Second operand 4 states and 325 transitions. [2024-11-10 22:26:17,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 187 transitions, 960 flow [2024-11-10 22:26:17,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 187 transitions, 953 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:26:17,536 INFO L231 Difference]: Finished difference. Result has 137 places, 124 transitions, 457 flow [2024-11-10 22:26:17,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=457, PETRI_PLACES=137, PETRI_TRANSITIONS=124} [2024-11-10 22:26:17,539 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 35 predicate places. [2024-11-10 22:26:17,539 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 124 transitions, 457 flow [2024-11-10 22:26:17,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 22:26:17,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:17,540 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:17,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:26:17,540 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-10 22:26:17,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:17,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1699389497, now seen corresponding path program 1 times [2024-11-10 22:26:17,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:17,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898427393] [2024-11-10 22:26:17,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:17,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:17,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:17,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898427393] [2024-11-10 22:26:17,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898427393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:26:17,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763474117] [2024-11-10 22:26:17,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:17,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:17,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:26:17,816 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:26:17,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:26:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:17,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-10 22:26:17,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:26:17,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-10 22:26:18,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-10 22:26:18,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:18,036 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:26:18,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2024-11-10 22:26:18,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2024-11-10 22:26:18,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:18,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763474117] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:26:18,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:26:18,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-10 22:26:18,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543783338] [2024-11-10 22:26:18,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:26:18,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 22:26:18,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:18,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 22:26:18,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-10 22:26:18,255 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 111 [2024-11-10 22:26:18,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 124 transitions, 457 flow. Second operand has 13 states, 13 states have (on average 60.38461538461539) internal successors, (785), 13 states have internal predecessors, (785), 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 22:26:18,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:18,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 111 [2024-11-10 22:26:18,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:22,954 INFO L124 PetriNetUnfolderBase]: 26137/51346 cut-off events. [2024-11-10 22:26:22,955 INFO L125 PetriNetUnfolderBase]: For 32578/35119 co-relation queries the response was YES. [2024-11-10 22:26:23,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113213 conditions, 51346 events. 26137/51346 cut-off events. For 32578/35119 co-relation queries the response was YES. Maximal size of possible extension queue 1739. Compared 535031 event pairs, 7022 based on Foata normal form. 1520/47604 useless extension candidates. Maximal degree in co-relation 113161. Up to 12356 conditions per place. [2024-11-10 22:26:23,399 INFO L140 encePairwiseOnDemand]: 98/111 looper letters, 206 selfloop transitions, 19 changer transitions 1/283 dead transitions. [2024-11-10 22:26:23,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 283 transitions, 1457 flow [2024-11-10 22:26:23,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:26:23,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:26:23,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 784 transitions. [2024-11-10 22:26:23,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7063063063063063 [2024-11-10 22:26:23,401 INFO L175 Difference]: Start difference. First operand has 137 places, 124 transitions, 457 flow. Second operand 10 states and 784 transitions. [2024-11-10 22:26:23,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 283 transitions, 1457 flow [2024-11-10 22:26:23,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 283 transitions, 1457 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:26:23,648 INFO L231 Difference]: Finished difference. Result has 149 places, 133 transitions, 570 flow [2024-11-10 22:26:23,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=570, PETRI_PLACES=149, PETRI_TRANSITIONS=133} [2024-11-10 22:26:23,649 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 47 predicate places. [2024-11-10 22:26:23,649 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 133 transitions, 570 flow [2024-11-10 22:26:23,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.38461538461539) internal successors, (785), 13 states have internal predecessors, (785), 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 22:26:23,650 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:23,650 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:23,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 22:26:23,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:23,851 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-10 22:26:23,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:23,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1574195305, now seen corresponding path program 1 times [2024-11-10 22:26:23,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:23,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747891056] [2024-11-10 22:26:23,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:23,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:23,967 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 22:26:23,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:23,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747891056] [2024-11-10 22:26:23,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747891056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:26:23,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:26:23,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:26:23,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463010795] [2024-11-10 22:26:23,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:26:23,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:26:23,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:23,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:26:23,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:26:23,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 111 [2024-11-10 22:26:23,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 133 transitions, 570 flow. Second operand has 6 states, 6 states have (on average 61.666666666666664) internal successors, (370), 6 states have internal predecessors, (370), 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 22:26:24,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:24,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 111 [2024-11-10 22:26:24,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:28,305 INFO L124 PetriNetUnfolderBase]: 24772/47490 cut-off events. [2024-11-10 22:26:28,305 INFO L125 PetriNetUnfolderBase]: For 54646/58466 co-relation queries the response was YES. [2024-11-10 22:26:28,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114506 conditions, 47490 events. 24772/47490 cut-off events. For 54646/58466 co-relation queries the response was YES. Maximal size of possible extension queue 1659. Compared 484530 event pairs, 17287 based on Foata normal form. 1998/44124 useless extension candidates. Maximal degree in co-relation 114448. Up to 30559 conditions per place. [2024-11-10 22:26:29,014 INFO L140 encePairwiseOnDemand]: 103/111 looper letters, 100 selfloop transitions, 4 changer transitions 25/186 dead transitions. [2024-11-10 22:26:29,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 186 transitions, 1074 flow [2024-11-10 22:26:29,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:26:29,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:26:29,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 515 transitions. [2024-11-10 22:26:29,016 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6628056628056628 [2024-11-10 22:26:29,016 INFO L175 Difference]: Start difference. First operand has 149 places, 133 transitions, 570 flow. Second operand 7 states and 515 transitions. [2024-11-10 22:26:29,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 186 transitions, 1074 flow [2024-11-10 22:26:29,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 186 transitions, 1041 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-10 22:26:29,204 INFO L231 Difference]: Finished difference. Result has 152 places, 127 transitions, 524 flow [2024-11-10 22:26:29,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=524, PETRI_PLACES=152, PETRI_TRANSITIONS=127} [2024-11-10 22:26:29,204 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 50 predicate places. [2024-11-10 22:26:29,205 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 127 transitions, 524 flow [2024-11-10 22:26:29,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.666666666666664) internal successors, (370), 6 states have internal predecessors, (370), 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 22:26:29,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:29,205 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:29,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:26:29,205 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-10 22:26:29,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:29,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1141496962, now seen corresponding path program 1 times [2024-11-10 22:26:29,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:29,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929197818] [2024-11-10 22:26:29,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:29,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:29,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:29,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:29,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929197818] [2024-11-10 22:26:29,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929197818] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:26:29,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196030335] [2024-11-10 22:26:29,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:29,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:29,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:26:29,388 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:26:29,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 22:26:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:29,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-10 22:26:29,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:26:29,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-10 22:26:29,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-10 22:26:29,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:29,570 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:26:29,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2024-11-10 22:26:29,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2024-11-10 22:26:29,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:29,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196030335] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:26:29,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:26:29,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-10 22:26:29,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40778632] [2024-11-10 22:26:29,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:26:29,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 22:26:29,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:29,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 22:26:29,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-10 22:26:29,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 111 [2024-11-10 22:26:29,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 127 transitions, 524 flow. Second operand has 13 states, 13 states have (on average 58.53846153846154) internal successors, (761), 13 states have internal predecessors, (761), 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 22:26:29,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:29,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 111 [2024-11-10 22:26:29,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:35,421 INFO L124 PetriNetUnfolderBase]: 31509/58037 cut-off events. [2024-11-10 22:26:35,421 INFO L125 PetriNetUnfolderBase]: For 57858/60925 co-relation queries the response was YES. [2024-11-10 22:26:35,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141305 conditions, 58037 events. 31509/58037 cut-off events. For 57858/60925 co-relation queries the response was YES. Maximal size of possible extension queue 2050. Compared 577178 event pairs, 9451 based on Foata normal form. 2291/55102 useless extension candidates. Maximal degree in co-relation 141252. Up to 15778 conditions per place. [2024-11-10 22:26:35,977 INFO L140 encePairwiseOnDemand]: 98/111 looper letters, 186 selfloop transitions, 18 changer transitions 0/257 dead transitions. [2024-11-10 22:26:35,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 257 transitions, 1404 flow [2024-11-10 22:26:35,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:26:35,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:26:35,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 740 transitions. [2024-11-10 22:26:35,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-10 22:26:35,980 INFO L175 Difference]: Start difference. First operand has 152 places, 127 transitions, 524 flow. Second operand 10 states and 740 transitions. [2024-11-10 22:26:35,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 257 transitions, 1404 flow [2024-11-10 22:26:36,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 257 transitions, 1332 flow, removed 27 selfloop flow, removed 9 redundant places. [2024-11-10 22:26:36,191 INFO L231 Difference]: Finished difference. Result has 146 places, 129 transitions, 562 flow [2024-11-10 22:26:36,191 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=562, PETRI_PLACES=146, PETRI_TRANSITIONS=129} [2024-11-10 22:26:36,192 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 44 predicate places. [2024-11-10 22:26:36,192 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 129 transitions, 562 flow [2024-11-10 22:26:36,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 58.53846153846154) internal successors, (761), 13 states have internal predecessors, (761), 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 22:26:36,192 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:36,192 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:36,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 22:26:36,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:36,393 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-10 22:26:36,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:36,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1026667799, now seen corresponding path program 1 times [2024-11-10 22:26:36,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:36,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091087338] [2024-11-10 22:26:36,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:36,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:36,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:26:36,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:36,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091087338] [2024-11-10 22:26:36,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091087338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:26:36,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:26:36,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:26:36,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953873057] [2024-11-10 22:26:36,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:26:36,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:26:36,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:36,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:26:36,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:26:36,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 111 [2024-11-10 22:26:36,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 129 transitions, 562 flow. Second operand has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 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 22:26:36,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:36,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 111 [2024-11-10 22:26:36,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:26:42,228 INFO L124 PetriNetUnfolderBase]: 39454/67647 cut-off events. [2024-11-10 22:26:42,228 INFO L125 PetriNetUnfolderBase]: For 71689/75555 co-relation queries the response was YES. [2024-11-10 22:26:42,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168484 conditions, 67647 events. 39454/67647 cut-off events. For 71689/75555 co-relation queries the response was YES. Maximal size of possible extension queue 2304. Compared 640935 event pairs, 7444 based on Foata normal form. 2691/66479 useless extension candidates. Maximal degree in co-relation 168434. Up to 33631 conditions per place. [2024-11-10 22:26:42,744 INFO L140 encePairwiseOnDemand]: 104/111 looper letters, 173 selfloop transitions, 6 changer transitions 0/231 dead transitions. [2024-11-10 22:26:42,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 231 transitions, 1243 flow [2024-11-10 22:26:42,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:26:42,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:26:42,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 424 transitions. [2024-11-10 22:26:42,746 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7639639639639639 [2024-11-10 22:26:42,746 INFO L175 Difference]: Start difference. First operand has 146 places, 129 transitions, 562 flow. Second operand 5 states and 424 transitions. [2024-11-10 22:26:42,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 231 transitions, 1243 flow [2024-11-10 22:26:43,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 231 transitions, 1219 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-10 22:26:43,283 INFO L231 Difference]: Finished difference. Result has 145 places, 129 transitions, 553 flow [2024-11-10 22:26:43,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=553, PETRI_PLACES=145, PETRI_TRANSITIONS=129} [2024-11-10 22:26:43,284 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 43 predicate places. [2024-11-10 22:26:43,284 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 129 transitions, 553 flow [2024-11-10 22:26:43,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 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 22:26:43,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:26:43,284 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:26:43,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 22:26:43,284 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-11-10 22:26:43,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:26:43,285 INFO L85 PathProgramCache]: Analyzing trace with hash -519612504, now seen corresponding path program 1 times [2024-11-10 22:26:43,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:26:43,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491906302] [2024-11-10 22:26:43,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:43,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:26:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:43,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:43,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:26:43,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491906302] [2024-11-10 22:26:43,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491906302] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:26:43,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025299583] [2024-11-10 22:26:43,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:26:43,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:26:43,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:26:43,529 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:26:43,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 22:26:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:26:43,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-10 22:26:43,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:26:43,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-10 22:26:43,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-10 22:26:43,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:43,693 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:26:43,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2024-11-10 22:26:43,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2024-11-10 22:26:43,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:26:43,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025299583] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:26:43,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:26:43,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-10 22:26:43,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965996287] [2024-11-10 22:26:43,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:26:43,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 22:26:43,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:26:43,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 22:26:43,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-10 22:26:43,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 111 [2024-11-10 22:26:43,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 129 transitions, 553 flow. Second operand has 13 states, 13 states have (on average 60.69230769230769) internal successors, (789), 13 states have internal predecessors, (789), 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 22:26:43,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:26:43,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 111 [2024-11-10 22:26:43,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand