./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-node-trans.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/chl-node-trans.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 c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:22:21,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:22:21,461 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:22:21,464 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:22:21,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:22:21,485 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:22:21,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:22:21,486 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:22:21,487 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:22:21,488 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:22:21,488 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:22:21,489 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:22:21,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:22:21,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:22:21,490 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:22:21,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:22:21,491 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:22:21,491 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:22:21,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:22:21,491 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:22:21,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:22:21,494 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:22:21,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:22:21,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:22:21,494 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:22:21,494 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:22:21,494 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:22:21,494 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:22:21,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:22:21,495 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:22:21,495 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:22:21,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:22:21,495 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:22:21,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:22:21,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:22:21,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:22:21,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:22:21,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:22:21,496 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:22:21,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:22:21,496 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:22:21,497 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:22:21,497 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:22:21,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:22:21,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf [2024-11-10 22:22:21,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:22:21,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:22:21,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:22:21,714 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:22:21,714 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:22:21,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2024-11-10 22:22:22,922 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:22:23,065 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:22:23,065 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2024-11-10 22:22:23,071 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3729c22dd/98d67face3b1407c814878500cb85c1a/FLAG5af85d865 [2024-11-10 22:22:23,477 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3729c22dd/98d67face3b1407c814878500cb85c1a [2024-11-10 22:22:23,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:22:23,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:22:23,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:22:23,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:22:23,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:22:23,489 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,489 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1426db57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23, skipping insertion in model container [2024-11-10 22:22:23,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,510 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:22:23,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:22:23,693 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:22:23,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:22:23,731 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:22:23,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23 WrapperNode [2024-11-10 22:22:23,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:22:23,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:22:23,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:22:23,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:22:23,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,746 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,775 INFO L138 Inliner]: procedures = 26, calls = 52, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 486 [2024-11-10 22:22:23,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:22:23,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:22:23,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:22:23,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:22:23,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,797 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,816 INFO L175 MemorySlicer]: Split 26 memory accesses to 3 slices as follows [2, 9, 15]. 58 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 6 writes are split as follows [0, 3, 3]. [2024-11-10 22:22:23,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,826 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,826 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,828 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,832 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:22:23,833 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:22:23,833 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:22:23,833 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:22:23,834 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23" (1/1) ... [2024-11-10 22:22:23,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:22:23,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:23,863 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 22:22:23,866 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 22:22:23,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:22:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:22:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:22:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 22:22:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:22:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:22:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 22:22:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 22:22:23,906 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 22:22:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 22:22:23,907 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 22:22:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 22:22:23,907 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 22:22:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:22:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:22:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 22:22:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 22:22:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:22:23,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:22:23,909 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 22:22:24,014 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:22:24,015 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:22:24,554 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:22:24,555 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:22:24,902 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:22:24,903 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:22:24,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:24 BoogieIcfgContainer [2024-11-10 22:22:24,903 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:22:24,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:22:24,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:22:24,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:22:24,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:22:23" (1/3) ... [2024-11-10 22:22:24,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274d4871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:22:24, skipping insertion in model container [2024-11-10 22:22:24,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:23" (2/3) ... [2024-11-10 22:22:24,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274d4871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:22:24, skipping insertion in model container [2024-11-10 22:22:24,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:24" (3/3) ... [2024-11-10 22:22:24,911 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2024-11-10 22:22:24,924 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:22:24,924 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-10 22:22:24,924 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:22:24,977 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 22:22:25,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 158 transitions, 337 flow [2024-11-10 22:22:25,103 INFO L124 PetriNetUnfolderBase]: 21/155 cut-off events. [2024-11-10 22:22:25,103 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 22:22:25,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 155 events. 21/155 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 421 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 131. Up to 2 conditions per place. [2024-11-10 22:22:25,109 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 158 transitions, 337 flow [2024-11-10 22:22:25,115 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 153 transitions, 321 flow [2024-11-10 22:22:25,128 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:22:25,135 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;@13e57a9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:22:25,135 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-11-10 22:22:25,138 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:22:25,138 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2024-11-10 22:22:25,138 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:22:25,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:25,139 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-10 22:22:25,139 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:25,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:25,143 INFO L85 PathProgramCache]: Analyzing trace with hash 43682, now seen corresponding path program 1 times [2024-11-10 22:22:25,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:25,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469817349] [2024-11-10 22:22:25,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:25,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:25,348 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 22:22:25,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:25,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469817349] [2024-11-10 22:22:25,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469817349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:25,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:25,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:22:25,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389840779] [2024-11-10 22:22:25,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:25,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:22:25,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:25,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:22:25,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:22:25,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 158 [2024-11-10 22:22:25,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 153 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 22:22:25,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:25,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 158 [2024-11-10 22:22:25,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:26,180 INFO L124 PetriNetUnfolderBase]: 4137/8031 cut-off events. [2024-11-10 22:22:26,180 INFO L125 PetriNetUnfolderBase]: For 233/233 co-relation queries the response was YES. [2024-11-10 22:22:26,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13754 conditions, 8031 events. 4137/8031 cut-off events. For 233/233 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 65739 event pairs, 2736 based on Foata normal form. 8/6415 useless extension candidates. Maximal degree in co-relation 13013. Up to 5504 conditions per place. [2024-11-10 22:22:26,231 INFO L140 encePairwiseOnDemand]: 149/158 looper letters, 61 selfloop transitions, 1 changer transitions 0/145 dead transitions. [2024-11-10 22:22:26,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 145 transitions, 429 flow [2024-11-10 22:22:26,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:22:26,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:22:26,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 328 transitions. [2024-11-10 22:22:26,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6919831223628692 [2024-11-10 22:22:26,250 INFO L175 Difference]: Start difference. First operand has 142 places, 153 transitions, 321 flow. Second operand 3 states and 328 transitions. [2024-11-10 22:22:26,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 145 transitions, 429 flow [2024-11-10 22:22:26,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 145 transitions, 420 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 22:22:26,256 INFO L231 Difference]: Finished difference. Result has 137 places, 145 transitions, 298 flow [2024-11-10 22:22:26,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=137, PETRI_TRANSITIONS=145} [2024-11-10 22:22:26,260 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -5 predicate places. [2024-11-10 22:22:26,260 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 145 transitions, 298 flow [2024-11-10 22:22:26,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 22:22:26,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:26,261 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-10 22:22:26,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:22:26,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:26,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:26,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1355454, now seen corresponding path program 1 times [2024-11-10 22:22:26,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:26,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596314798] [2024-11-10 22:22:26,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:26,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:26,324 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 22:22:26,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:26,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596314798] [2024-11-10 22:22:26,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596314798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:26,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:26,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:22:26,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898212488] [2024-11-10 22:22:26,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:26,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:22:26,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:26,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:22:26,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:22:26,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 158 [2024-11-10 22:22:26,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 145 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 22:22:26,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:26,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 158 [2024-11-10 22:22:26,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:26,935 INFO L124 PetriNetUnfolderBase]: 4137/8029 cut-off events. [2024-11-10 22:22:26,935 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-10 22:22:26,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13669 conditions, 8029 events. 4137/8029 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 65741 event pairs, 2736 based on Foata normal form. 0/6407 useless extension candidates. Maximal degree in co-relation 13663. Up to 5502 conditions per place. [2024-11-10 22:22:26,971 INFO L140 encePairwiseOnDemand]: 155/158 looper letters, 59 selfloop transitions, 1 changer transitions 0/143 dead transitions. [2024-11-10 22:22:26,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 143 transitions, 414 flow [2024-11-10 22:22:26,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:22:26,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:22:26,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2024-11-10 22:22:26,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6751054852320675 [2024-11-10 22:22:26,974 INFO L175 Difference]: Start difference. First operand has 137 places, 145 transitions, 298 flow. Second operand 3 states and 320 transitions. [2024-11-10 22:22:26,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 143 transitions, 414 flow [2024-11-10 22:22:26,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 143 transitions, 413 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:26,980 INFO L231 Difference]: Finished difference. Result has 136 places, 143 transitions, 295 flow [2024-11-10 22:22:26,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=295, PETRI_PLACES=136, PETRI_TRANSITIONS=143} [2024-11-10 22:22:26,981 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -6 predicate places. [2024-11-10 22:22:26,981 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 143 transitions, 295 flow [2024-11-10 22:22:26,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 22:22:26,982 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:26,982 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:22:26,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:22:26,982 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:26,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:26,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1726932533, now seen corresponding path program 1 times [2024-11-10 22:22:26,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:26,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68148830] [2024-11-10 22:22:26,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:26,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:27,075 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 22:22:27,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:27,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68148830] [2024-11-10 22:22:27,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68148830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:27,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:27,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:27,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725458354] [2024-11-10 22:22:27,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:27,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:27,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:27,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:27,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:27,101 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 158 [2024-11-10 22:22:27,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 143 transitions, 295 flow. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 22:22:27,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:27,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 158 [2024-11-10 22:22:27,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:27,838 INFO L124 PetriNetUnfolderBase]: 4140/8047 cut-off events. [2024-11-10 22:22:27,838 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-10 22:22:27,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13703 conditions, 8047 events. 4140/8047 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 65793 event pairs, 2736 based on Foata normal form. 3/6428 useless extension candidates. Maximal degree in co-relation 13696. Up to 5512 conditions per place. [2024-11-10 22:22:27,868 INFO L140 encePairwiseOnDemand]: 140/158 looper letters, 63 selfloop transitions, 12 changer transitions 0/152 dead transitions. [2024-11-10 22:22:27,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 152 transitions, 463 flow [2024-11-10 22:22:27,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:27,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:27,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 417 transitions. [2024-11-10 22:22:27,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6598101265822784 [2024-11-10 22:22:27,871 INFO L175 Difference]: Start difference. First operand has 136 places, 143 transitions, 295 flow. Second operand 4 states and 417 transitions. [2024-11-10 22:22:27,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 152 transitions, 463 flow [2024-11-10 22:22:27,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 152 transitions, 462 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:27,874 INFO L231 Difference]: Finished difference. Result has 140 places, 152 transitions, 381 flow [2024-11-10 22:22:27,874 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=381, PETRI_PLACES=140, PETRI_TRANSITIONS=152} [2024-11-10 22:22:27,875 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -2 predicate places. [2024-11-10 22:22:27,875 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 152 transitions, 381 flow [2024-11-10 22:22:27,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 22:22:27,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:27,875 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:27,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:22:27,876 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:27,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:27,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1995298516, now seen corresponding path program 1 times [2024-11-10 22:22:27,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:27,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554590100] [2024-11-10 22:22:27,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:27,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:27,916 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 22:22:27,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:27,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554590100] [2024-11-10 22:22:27,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554590100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:27,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:27,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:22:27,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745368756] [2024-11-10 22:22:27,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:27,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:22:27,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:27,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:22:27,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:22:27,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 158 [2024-11-10 22:22:27,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 152 transitions, 381 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 22:22:27,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:27,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 158 [2024-11-10 22:22:27,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:28,477 INFO L124 PetriNetUnfolderBase]: 4140/8045 cut-off events. [2024-11-10 22:22:28,477 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-11-10 22:22:28,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13735 conditions, 8045 events. 4140/8045 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 65790 event pairs, 2736 based on Foata normal form. 2/6429 useless extension candidates. Maximal degree in co-relation 13726. Up to 5513 conditions per place. [2024-11-10 22:22:28,511 INFO L140 encePairwiseOnDemand]: 155/158 looper letters, 70 selfloop transitions, 1 changer transitions 0/150 dead transitions. [2024-11-10 22:22:28,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 150 transitions, 519 flow [2024-11-10 22:22:28,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:22:28,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:22:28,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2024-11-10 22:22:28,513 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.679324894514768 [2024-11-10 22:22:28,513 INFO L175 Difference]: Start difference. First operand has 140 places, 152 transitions, 381 flow. Second operand 3 states and 322 transitions. [2024-11-10 22:22:28,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 150 transitions, 519 flow [2024-11-10 22:22:28,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 150 transitions, 510 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:28,515 INFO L231 Difference]: Finished difference. Result has 139 places, 150 transitions, 370 flow [2024-11-10 22:22:28,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=139, PETRI_TRANSITIONS=150} [2024-11-10 22:22:28,517 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -3 predicate places. [2024-11-10 22:22:28,517 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 150 transitions, 370 flow [2024-11-10 22:22:28,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 22:22:28,517 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:28,517 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:28,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:22:28,518 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:28,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:28,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1724713114, now seen corresponding path program 1 times [2024-11-10 22:22:28,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:28,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826188566] [2024-11-10 22:22:28,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:28,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:28,556 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 22:22:28,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:28,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826188566] [2024-11-10 22:22:28,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826188566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:28,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:28,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:22:28,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318050467] [2024-11-10 22:22:28,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:28,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:22:28,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:28,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:22:28,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:22:28,565 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 158 [2024-11-10 22:22:28,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 150 transitions, 370 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 22:22:28,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:28,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 158 [2024-11-10 22:22:28,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:29,236 INFO L124 PetriNetUnfolderBase]: 4140/8043 cut-off events. [2024-11-10 22:22:29,236 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-10 22:22:29,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13726 conditions, 8043 events. 4140/8043 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 65850 event pairs, 2736 based on Foata normal form. 1/6427 useless extension candidates. Maximal degree in co-relation 13716. Up to 5511 conditions per place. [2024-11-10 22:22:29,373 INFO L140 encePairwiseOnDemand]: 155/158 looper letters, 68 selfloop transitions, 1 changer transitions 0/148 dead transitions. [2024-11-10 22:22:29,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 148 transitions, 504 flow [2024-11-10 22:22:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:22:29,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:22:29,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2024-11-10 22:22:29,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6751054852320675 [2024-11-10 22:22:29,374 INFO L175 Difference]: Start difference. First operand has 139 places, 150 transitions, 370 flow. Second operand 3 states and 320 transitions. [2024-11-10 22:22:29,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 148 transitions, 504 flow [2024-11-10 22:22:29,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 148 transitions, 503 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:29,376 INFO L231 Difference]: Finished difference. Result has 138 places, 148 transitions, 367 flow [2024-11-10 22:22:29,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=367, PETRI_PLACES=138, PETRI_TRANSITIONS=148} [2024-11-10 22:22:29,377 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -4 predicate places. [2024-11-10 22:22:29,377 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 148 transitions, 367 flow [2024-11-10 22:22:29,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 22:22:29,377 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:29,378 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:29,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:22:29,378 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:29,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:29,378 INFO L85 PathProgramCache]: Analyzing trace with hash -298436894, now seen corresponding path program 1 times [2024-11-10 22:22:29,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:29,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966819492] [2024-11-10 22:22:29,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:29,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:29,439 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 22:22:29,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:29,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966819492] [2024-11-10 22:22:29,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966819492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:22:29,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707366785] [2024-11-10 22:22:29,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:29,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:29,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:29,442 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 22:22:29,444 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 22:22:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:29,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:22:29,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:22:29,559 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 22:22:29,559 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:22:29,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707366785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:29,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:22:29,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-10 22:22:29,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120785705] [2024-11-10 22:22:29,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:29,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:22:29,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:29,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:22:29,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:22:29,599 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 158 [2024-11-10 22:22:29,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 148 transitions, 367 flow. Second operand has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 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 22:22:29,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:29,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 158 [2024-11-10 22:22:29,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:30,211 INFO L124 PetriNetUnfolderBase]: 4140/8040 cut-off events. [2024-11-10 22:22:30,211 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-10 22:22:30,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13724 conditions, 8040 events. 4140/8040 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 65865 event pairs, 2736 based on Foata normal form. 3/6423 useless extension candidates. Maximal degree in co-relation 13713. Up to 5497 conditions per place. [2024-11-10 22:22:30,246 INFO L140 encePairwiseOnDemand]: 143/158 looper letters, 51 selfloop transitions, 21 changer transitions 0/145 dead transitions. [2024-11-10 22:22:30,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 145 transitions, 499 flow [2024-11-10 22:22:30,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:22:30,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:22:30,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 579 transitions. [2024-11-10 22:22:30,247 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6107594936708861 [2024-11-10 22:22:30,247 INFO L175 Difference]: Start difference. First operand has 138 places, 148 transitions, 367 flow. Second operand 6 states and 579 transitions. [2024-11-10 22:22:30,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 145 transitions, 499 flow [2024-11-10 22:22:30,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 145 transitions, 498 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:30,250 INFO L231 Difference]: Finished difference. Result has 139 places, 145 transitions, 396 flow [2024-11-10 22:22:30,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=396, PETRI_PLACES=139, PETRI_TRANSITIONS=145} [2024-11-10 22:22:30,250 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -3 predicate places. [2024-11-10 22:22:30,251 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 145 transitions, 396 flow [2024-11-10 22:22:30,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 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 22:22:30,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:30,251 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-10 22:22:30,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:22:30,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-10 22:22:30,456 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:30,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:30,457 INFO L85 PathProgramCache]: Analyzing trace with hash -661607900, now seen corresponding path program 1 times [2024-11-10 22:22:30,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:30,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545306460] [2024-11-10 22:22:30,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:30,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:30,533 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 22:22:30,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:30,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545306460] [2024-11-10 22:22:30,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545306460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:22:30,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353992251] [2024-11-10 22:22:30,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:30,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:30,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:30,536 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 22:22:30,541 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 22:22:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:30,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:22:30,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:22:30,653 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 22:22:30,653 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:22:30,689 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 22:22:30,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353992251] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:22:30,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:22:30,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-10 22:22:30,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673574254] [2024-11-10 22:22:30,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:22:30,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:22:30,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:30,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:22:30,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:22:30,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 158 [2024-11-10 22:22:30,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 145 transitions, 396 flow. Second operand has 12 states, 12 states have (on average 85.16666666666667) internal successors, (1022), 12 states have internal predecessors, (1022), 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 22:22:30,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:30,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 158 [2024-11-10 22:22:30,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:31,339 INFO L124 PetriNetUnfolderBase]: 4149/8094 cut-off events. [2024-11-10 22:22:31,340 INFO L125 PetriNetUnfolderBase]: For 216/216 co-relation queries the response was YES. [2024-11-10 22:22:31,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13880 conditions, 8094 events. 4149/8094 cut-off events. For 216/216 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66134 event pairs, 2736 based on Foata normal form. 9/6486 useless extension candidates. Maximal degree in co-relation 13869. Up to 5518 conditions per place. [2024-11-10 22:22:31,370 INFO L140 encePairwiseOnDemand]: 143/158 looper letters, 60 selfloop transitions, 39 changer transitions 0/172 dead transitions. [2024-11-10 22:22:31,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 172 transitions, 756 flow [2024-11-10 22:22:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:22:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:22:31,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 948 transitions. [2024-11-10 22:22:31,373 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-10 22:22:31,373 INFO L175 Difference]: Start difference. First operand has 139 places, 145 transitions, 396 flow. Second operand 10 states and 948 transitions. [2024-11-10 22:22:31,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 172 transitions, 756 flow [2024-11-10 22:22:31,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 172 transitions, 666 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-11-10 22:22:31,376 INFO L231 Difference]: Finished difference. Result has 147 places, 172 transitions, 600 flow [2024-11-10 22:22:31,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=600, PETRI_PLACES=147, PETRI_TRANSITIONS=172} [2024-11-10 22:22:31,377 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 5 predicate places. [2024-11-10 22:22:31,377 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 172 transitions, 600 flow [2024-11-10 22:22:31,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 85.16666666666667) internal successors, (1022), 12 states have internal predecessors, (1022), 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 22:22:31,377 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:31,377 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:31,389 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 22:22:31,581 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,SelfDestructingSolverStorable6 [2024-11-10 22:22:31,582 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:31,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:31,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1278609512, now seen corresponding path program 1 times [2024-11-10 22:22:31,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:31,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836932636] [2024-11-10 22:22:31,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:31,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:31,618 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 22:22:31,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:31,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836932636] [2024-11-10 22:22:31,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836932636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:31,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:31,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:22:31,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338947489] [2024-11-10 22:22:31,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:31,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:22:31,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:31,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:22:31,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:22:31,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 158 [2024-11-10 22:22:31,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 172 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 22:22:31,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:31,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 158 [2024-11-10 22:22:31,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:32,213 INFO L124 PetriNetUnfolderBase]: 4149/8092 cut-off events. [2024-11-10 22:22:32,214 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-11-10 22:22:32,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13894 conditions, 8092 events. 4149/8092 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66139 event pairs, 2736 based on Foata normal form. 2/6478 useless extension candidates. Maximal degree in co-relation 13881. Up to 5540 conditions per place. [2024-11-10 22:22:32,257 INFO L140 encePairwiseOnDemand]: 155/158 looper letters, 97 selfloop transitions, 1 changer transitions 0/170 dead transitions. [2024-11-10 22:22:32,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 170 transitions, 792 flow [2024-11-10 22:22:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:22:32,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:22:32,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2024-11-10 22:22:32,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.679324894514768 [2024-11-10 22:22:32,258 INFO L175 Difference]: Start difference. First operand has 147 places, 172 transitions, 600 flow. Second operand 3 states and 322 transitions. [2024-11-10 22:22:32,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 170 transitions, 792 flow [2024-11-10 22:22:32,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 170 transitions, 759 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:32,262 INFO L231 Difference]: Finished difference. Result has 145 places, 170 transitions, 565 flow [2024-11-10 22:22:32,262 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=565, PETRI_PLACES=145, PETRI_TRANSITIONS=170} [2024-11-10 22:22:32,263 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 3 predicate places. [2024-11-10 22:22:32,263 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 170 transitions, 565 flow [2024-11-10 22:22:32,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 22:22:32,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:32,263 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:32,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:22:32,263 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:32,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:32,264 INFO L85 PathProgramCache]: Analyzing trace with hash -982188015, now seen corresponding path program 1 times [2024-11-10 22:22:32,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:32,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665715275] [2024-11-10 22:22:32,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:32,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:32,296 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 22:22:32,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:32,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665715275] [2024-11-10 22:22:32,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665715275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:32,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:32,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:22:32,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182534390] [2024-11-10 22:22:32,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:32,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:22:32,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:32,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:22:32,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:22:32,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 158 [2024-11-10 22:22:32,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 170 transitions, 565 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 22:22:32,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:32,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 158 [2024-11-10 22:22:32,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:32,994 INFO L124 PetriNetUnfolderBase]: 4149/8090 cut-off events. [2024-11-10 22:22:32,994 INFO L125 PetriNetUnfolderBase]: For 231/231 co-relation queries the response was YES. [2024-11-10 22:22:33,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13877 conditions, 8090 events. 4149/8090 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 66127 event pairs, 2736 based on Foata normal form. 1/6476 useless extension candidates. Maximal degree in co-relation 13862. Up to 5538 conditions per place. [2024-11-10 22:22:33,031 INFO L140 encePairwiseOnDemand]: 155/158 looper letters, 95 selfloop transitions, 1 changer transitions 0/168 dead transitions. [2024-11-10 22:22:33,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 168 transitions, 753 flow [2024-11-10 22:22:33,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:22:33,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:22:33,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2024-11-10 22:22:33,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6751054852320675 [2024-11-10 22:22:33,032 INFO L175 Difference]: Start difference. First operand has 145 places, 170 transitions, 565 flow. Second operand 3 states and 320 transitions. [2024-11-10 22:22:33,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 168 transitions, 753 flow [2024-11-10 22:22:33,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 168 transitions, 752 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:33,036 INFO L231 Difference]: Finished difference. Result has 144 places, 168 transitions, 562 flow [2024-11-10 22:22:33,036 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=562, PETRI_PLACES=144, PETRI_TRANSITIONS=168} [2024-11-10 22:22:33,036 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 2 predicate places. [2024-11-10 22:22:33,036 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 168 transitions, 562 flow [2024-11-10 22:22:33,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 22:22:33,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:33,037 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:33,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:22:33,037 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:33,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:33,037 INFO L85 PathProgramCache]: Analyzing trace with hash -933757866, now seen corresponding path program 1 times [2024-11-10 22:22:33,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:33,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60839596] [2024-11-10 22:22:33,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:33,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:33,102 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 22:22:33,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:33,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60839596] [2024-11-10 22:22:33,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60839596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:33,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:33,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:33,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639611522] [2024-11-10 22:22:33,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:33,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:33,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:33,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:33,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:33,124 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 158 [2024-11-10 22:22:33,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 168 transitions, 562 flow. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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 22:22:33,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:33,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 158 [2024-11-10 22:22:33,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:33,847 INFO L124 PetriNetUnfolderBase]: 4152/8108 cut-off events. [2024-11-10 22:22:33,847 INFO L125 PetriNetUnfolderBase]: For 231/231 co-relation queries the response was YES. [2024-11-10 22:22:33,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13911 conditions, 8108 events. 4152/8108 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 66229 event pairs, 2736 based on Foata normal form. 3/6496 useless extension candidates. Maximal degree in co-relation 13895. Up to 5548 conditions per place. [2024-11-10 22:22:33,889 INFO L140 encePairwiseOnDemand]: 140/158 looper letters, 99 selfloop transitions, 12 changer transitions 0/177 dead transitions. [2024-11-10 22:22:33,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 177 transitions, 802 flow [2024-11-10 22:22:33,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:33,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:33,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 417 transitions. [2024-11-10 22:22:33,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6598101265822784 [2024-11-10 22:22:33,892 INFO L175 Difference]: Start difference. First operand has 144 places, 168 transitions, 562 flow. Second operand 4 states and 417 transitions. [2024-11-10 22:22:33,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 177 transitions, 802 flow [2024-11-10 22:22:33,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 177 transitions, 801 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:22:33,900 INFO L231 Difference]: Finished difference. Result has 148 places, 177 transitions, 648 flow [2024-11-10 22:22:33,900 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=648, PETRI_PLACES=148, PETRI_TRANSITIONS=177} [2024-11-10 22:22:33,901 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 6 predicate places. [2024-11-10 22:22:33,901 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 177 transitions, 648 flow [2024-11-10 22:22:33,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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 22:22:33,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:33,902 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1] [2024-11-10 22:22:33,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:22:33,902 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:33,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:33,902 INFO L85 PathProgramCache]: Analyzing trace with hash -400437251, now seen corresponding path program 2 times [2024-11-10 22:22:33,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:33,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913375385] [2024-11-10 22:22:33,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:33,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:34,063 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:22:34,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:34,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913375385] [2024-11-10 22:22:34,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913375385] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:22:34,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142648872] [2024-11-10 22:22:34,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:22:34,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:34,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:34,065 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 22:22:34,066 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 22:22:34,133 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:22:34,133 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:22:34,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:22:34,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:22:34,181 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:22:34,181 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:22:34,219 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:22:34,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142648872] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:22:34,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:22:34,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2024-11-10 22:22:34,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812385375] [2024-11-10 22:22:34,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:22:34,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 22:22:34,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:34,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 22:22:34,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-10 22:22:34,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 158 [2024-11-10 22:22:34,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 177 transitions, 648 flow. Second operand has 14 states, 14 states have (on average 82.21428571428571) internal successors, (1151), 14 states have internal predecessors, (1151), 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 22:22:34,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:34,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 158 [2024-11-10 22:22:34,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:35,259 INFO L124 PetriNetUnfolderBase]: 4155/8123 cut-off events. [2024-11-10 22:22:35,260 INFO L125 PetriNetUnfolderBase]: For 309/309 co-relation queries the response was YES. [2024-11-10 22:22:35,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13991 conditions, 8123 events. 4155/8123 cut-off events. For 309/309 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 66325 event pairs, 2736 based on Foata normal form. 6/6517 useless extension candidates. Maximal degree in co-relation 13973. Up to 5518 conditions per place. [2024-11-10 22:22:35,305 INFO L140 encePairwiseOnDemand]: 143/158 looper letters, 75 selfloop transitions, 57 changer transitions 0/198 dead transitions. [2024-11-10 22:22:35,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 198 transitions, 969 flow [2024-11-10 22:22:35,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 22:22:35,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 22:22:35,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1263 transitions. [2024-11-10 22:22:35,308 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5709764918625678 [2024-11-10 22:22:35,308 INFO L175 Difference]: Start difference. First operand has 148 places, 177 transitions, 648 flow. Second operand 14 states and 1263 transitions. [2024-11-10 22:22:35,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 198 transitions, 969 flow [2024-11-10 22:22:35,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 198 transitions, 924 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-10 22:22:35,313 INFO L231 Difference]: Finished difference. Result has 153 places, 183 transitions, 744 flow [2024-11-10 22:22:35,313 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=744, PETRI_PLACES=153, PETRI_TRANSITIONS=183} [2024-11-10 22:22:35,314 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 11 predicate places. [2024-11-10 22:22:35,314 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 183 transitions, 744 flow [2024-11-10 22:22:35,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 82.21428571428571) internal successors, (1151), 14 states have internal predecessors, (1151), 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 22:22:35,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:35,315 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:35,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 22:22:35,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:35,516 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:35,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:35,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1427277631, now seen corresponding path program 1 times [2024-11-10 22:22:35,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:35,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998217960] [2024-11-10 22:22:35,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:35,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:35,596 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:22:35,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:35,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998217960] [2024-11-10 22:22:35,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998217960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:35,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:35,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:35,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708212459] [2024-11-10 22:22:35,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:35,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:35,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:35,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:35,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:35,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 158 [2024-11-10 22:22:35,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 183 transitions, 744 flow. Second operand has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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 22:22:35,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:35,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 158 [2024-11-10 22:22:35,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:36,371 INFO L124 PetriNetUnfolderBase]: 4154/8121 cut-off events. [2024-11-10 22:22:36,372 INFO L125 PetriNetUnfolderBase]: For 332/332 co-relation queries the response was YES. [2024-11-10 22:22:36,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14014 conditions, 8121 events. 4154/8121 cut-off events. For 332/332 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 66325 event pairs, 2736 based on Foata normal form. 1/6510 useless extension candidates. Maximal degree in co-relation 14000. Up to 5570 conditions per place. [2024-11-10 22:22:36,394 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 113 selfloop transitions, 3 changer transitions 0/182 dead transitions. [2024-11-10 22:22:36,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 182 transitions, 970 flow [2024-11-10 22:22:36,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:36,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:36,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2024-11-10 22:22:36,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.629746835443038 [2024-11-10 22:22:36,395 INFO L175 Difference]: Start difference. First operand has 153 places, 183 transitions, 744 flow. Second operand 4 states and 398 transitions. [2024-11-10 22:22:36,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 182 transitions, 970 flow [2024-11-10 22:22:36,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 182 transitions, 760 flow, removed 18 selfloop flow, removed 12 redundant places. [2024-11-10 22:22:36,398 INFO L231 Difference]: Finished difference. Result has 145 places, 182 transitions, 538 flow [2024-11-10 22:22:36,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=538, PETRI_PLACES=145, PETRI_TRANSITIONS=182} [2024-11-10 22:22:36,399 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 3 predicate places. [2024-11-10 22:22:36,399 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 182 transitions, 538 flow [2024-11-10 22:22:36,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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 22:22:36,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:36,400 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:36,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 22:22:36,400 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:36,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:36,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1403127540, now seen corresponding path program 1 times [2024-11-10 22:22:36,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:36,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580421370] [2024-11-10 22:22:36,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:36,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 22:22:36,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:36,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580421370] [2024-11-10 22:22:36,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580421370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:36,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:36,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:36,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087945527] [2024-11-10 22:22:36,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:36,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:36,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:36,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:36,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:36,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 158 [2024-11-10 22:22:36,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 182 transitions, 538 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 22:22:36,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:36,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 158 [2024-11-10 22:22:36,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:37,041 INFO L124 PetriNetUnfolderBase]: 4153/8119 cut-off events. [2024-11-10 22:22:37,041 INFO L125 PetriNetUnfolderBase]: For 124/124 co-relation queries the response was YES. [2024-11-10 22:22:37,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13913 conditions, 8119 events. 4153/8119 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 66244 event pairs, 2736 based on Foata normal form. 1/6508 useless extension candidates. Maximal degree in co-relation 13898. Up to 5568 conditions per place. [2024-11-10 22:22:37,076 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 112 selfloop transitions, 3 changer transitions 0/181 dead transitions. [2024-11-10 22:22:37,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 181 transitions, 765 flow [2024-11-10 22:22:37,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:37,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:37,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2024-11-10 22:22:37,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.629746835443038 [2024-11-10 22:22:37,078 INFO L175 Difference]: Start difference. First operand has 145 places, 182 transitions, 538 flow. Second operand 4 states and 398 transitions. [2024-11-10 22:22:37,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 181 transitions, 765 flow [2024-11-10 22:22:37,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 181 transitions, 761 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:37,081 INFO L231 Difference]: Finished difference. Result has 147 places, 181 transitions, 541 flow [2024-11-10 22:22:37,082 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=541, PETRI_PLACES=147, PETRI_TRANSITIONS=181} [2024-11-10 22:22:37,082 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 5 predicate places. [2024-11-10 22:22:37,082 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 181 transitions, 541 flow [2024-11-10 22:22:37,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 22:22:37,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:37,083 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:37,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 22:22:37,083 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:37,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:37,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1246267915, now seen corresponding path program 1 times [2024-11-10 22:22:37,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:37,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772800585] [2024-11-10 22:22:37,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:37,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-10 22:22:37,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:37,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772800585] [2024-11-10 22:22:37,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772800585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:37,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:37,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:37,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906852448] [2024-11-10 22:22:37,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:37,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:37,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:37,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:37,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:37,181 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 158 [2024-11-10 22:22:37,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 181 transitions, 541 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 22:22:37,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:37,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 158 [2024-11-10 22:22:37,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:37,666 INFO L124 PetriNetUnfolderBase]: 4152/8117 cut-off events. [2024-11-10 22:22:37,667 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-11-10 22:22:37,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13917 conditions, 8117 events. 4152/8117 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 66164 event pairs, 2736 based on Foata normal form. 1/6506 useless extension candidates. Maximal degree in co-relation 13901. Up to 5566 conditions per place. [2024-11-10 22:22:37,699 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 111 selfloop transitions, 3 changer transitions 0/180 dead transitions. [2024-11-10 22:22:37,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 180 transitions, 766 flow [2024-11-10 22:22:37,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:37,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:37,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2024-11-10 22:22:37,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.629746835443038 [2024-11-10 22:22:37,701 INFO L175 Difference]: Start difference. First operand has 147 places, 181 transitions, 541 flow. Second operand 4 states and 398 transitions. [2024-11-10 22:22:37,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 180 transitions, 766 flow [2024-11-10 22:22:37,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 180 transitions, 762 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:37,704 INFO L231 Difference]: Finished difference. Result has 149 places, 180 transitions, 544 flow [2024-11-10 22:22:37,704 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=544, PETRI_PLACES=149, PETRI_TRANSITIONS=180} [2024-11-10 22:22:37,704 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 7 predicate places. [2024-11-10 22:22:37,704 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 180 transitions, 544 flow [2024-11-10 22:22:37,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 22:22:37,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:37,705 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:37,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 22:22:37,705 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:37,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:37,705 INFO L85 PathProgramCache]: Analyzing trace with hash 914713071, now seen corresponding path program 1 times [2024-11-10 22:22:37,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:37,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418378612] [2024-11-10 22:22:37,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:37,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 22:22:37,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:37,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418378612] [2024-11-10 22:22:37,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418378612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:22:37,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401788313] [2024-11-10 22:22:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:37,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:37,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:37,787 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 22:22:37,788 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 22:22:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:37,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-10 22:22:37,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:22:37,982 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:22:37,982 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:22:38,099 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:22:38,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401788313] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:22:38,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:22:38,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-10 22:22:38,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287074315] [2024-11-10 22:22:38,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:22:38,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 22:22:38,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:38,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 22:22:38,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-10 22:22:38,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 158 [2024-11-10 22:22:38,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 180 transitions, 544 flow. Second operand has 19 states, 19 states have (on average 70.57894736842105) internal successors, (1341), 19 states have internal predecessors, (1341), 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 22:22:38,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:38,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 158 [2024-11-10 22:22:38,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:39,734 INFO L124 PetriNetUnfolderBase]: 8297/16187 cut-off events. [2024-11-10 22:22:39,735 INFO L125 PetriNetUnfolderBase]: For 247/247 co-relation queries the response was YES. [2024-11-10 22:22:39,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27750 conditions, 16187 events. 8297/16187 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 982. Compared 145982 event pairs, 5472 based on Foata normal form. 6/13081 useless extension candidates. Maximal degree in co-relation 27733. Up to 5532 conditions per place. [2024-11-10 22:22:39,794 INFO L140 encePairwiseOnDemand]: 131/158 looper letters, 135 selfloop transitions, 89 changer transitions 0/281 dead transitions. [2024-11-10 22:22:39,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 281 transitions, 1318 flow [2024-11-10 22:22:39,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-10 22:22:39,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-10 22:22:39,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1729 transitions. [2024-11-10 22:22:39,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47578425976884975 [2024-11-10 22:22:39,798 INFO L175 Difference]: Start difference. First operand has 149 places, 180 transitions, 544 flow. Second operand 23 states and 1729 transitions. [2024-11-10 22:22:39,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 281 transitions, 1318 flow [2024-11-10 22:22:39,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 281 transitions, 1312 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:39,802 INFO L231 Difference]: Finished difference. Result has 169 places, 230 transitions, 1040 flow [2024-11-10 22:22:39,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1040, PETRI_PLACES=169, PETRI_TRANSITIONS=230} [2024-11-10 22:22:39,803 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 27 predicate places. [2024-11-10 22:22:39,803 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 230 transitions, 1040 flow [2024-11-10 22:22:39,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 70.57894736842105) internal successors, (1341), 19 states have internal predecessors, (1341), 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 22:22:39,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:39,804 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:39,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 22:22:40,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-10 22:22:40,005 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:40,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:40,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1158073004, now seen corresponding path program 1 times [2024-11-10 22:22:40,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:40,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341810600] [2024-11-10 22:22:40,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:40,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:40,107 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 22:22:40,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:40,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341810600] [2024-11-10 22:22:40,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341810600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:22:40,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389536840] [2024-11-10 22:22:40,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:40,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:40,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:40,109 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 22:22:40,110 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 22:22:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:40,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:22:40,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:22:40,224 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 22:22:40,224 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:22:40,248 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 22:22:40,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389536840] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:22:40,249 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:22:40,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-10 22:22:40,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219238864] [2024-11-10 22:22:40,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:22:40,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:22:40,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:40,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:22:40,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:22:40,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 158 [2024-11-10 22:22:40,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 230 transitions, 1040 flow. Second operand has 12 states, 12 states have (on average 86.16666666666667) internal successors, (1034), 12 states have internal predecessors, (1034), 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 22:22:40,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:40,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 158 [2024-11-10 22:22:40,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:41,370 INFO L124 PetriNetUnfolderBase]: 8312/16277 cut-off events. [2024-11-10 22:22:41,370 INFO L125 PetriNetUnfolderBase]: For 706/706 co-relation queries the response was YES. [2024-11-10 22:22:41,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28108 conditions, 16277 events. 8312/16277 cut-off events. For 706/706 co-relation queries the response was YES. Maximal size of possible extension queue 979. Compared 147257 event pairs, 5472 based on Foata normal form. 15/13068 useless extension candidates. Maximal degree in co-relation 28090. Up to 11093 conditions per place. [2024-11-10 22:22:41,456 INFO L140 encePairwiseOnDemand]: 143/158 looper letters, 132 selfloop transitions, 70 changer transitions 0/275 dead transitions. [2024-11-10 22:22:41,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 275 transitions, 1723 flow [2024-11-10 22:22:41,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:22:41,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:22:41,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 948 transitions. [2024-11-10 22:22:41,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-10 22:22:41,458 INFO L175 Difference]: Start difference. First operand has 169 places, 230 transitions, 1040 flow. Second operand 10 states and 948 transitions. [2024-11-10 22:22:41,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 275 transitions, 1723 flow [2024-11-10 22:22:41,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 275 transitions, 1589 flow, removed 42 selfloop flow, removed 4 redundant places. [2024-11-10 22:22:41,464 INFO L231 Difference]: Finished difference. Result has 177 places, 275 transitions, 1403 flow [2024-11-10 22:22:41,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=966, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1403, PETRI_PLACES=177, PETRI_TRANSITIONS=275} [2024-11-10 22:22:41,467 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 35 predicate places. [2024-11-10 22:22:41,467 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 275 transitions, 1403 flow [2024-11-10 22:22:41,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 86.16666666666667) internal successors, (1034), 12 states have internal predecessors, (1034), 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 22:22:41,468 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:41,468 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:41,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 22:22:41,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-10 22:22:41,668 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:41,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:41,669 INFO L85 PathProgramCache]: Analyzing trace with hash -34660602, now seen corresponding path program 1 times [2024-11-10 22:22:41,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:41,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079758243] [2024-11-10 22:22:41,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:41,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:41,757 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 22:22:41,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:41,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079758243] [2024-11-10 22:22:41,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079758243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:41,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:41,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:41,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330803104] [2024-11-10 22:22:41,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:41,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:41,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:41,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:41,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:41,775 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 158 [2024-11-10 22:22:41,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 275 transitions, 1403 flow. Second operand has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 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 22:22:41,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:41,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 158 [2024-11-10 22:22:41,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:43,524 INFO L124 PetriNetUnfolderBase]: 16170/28745 cut-off events. [2024-11-10 22:22:43,525 INFO L125 PetriNetUnfolderBase]: For 816/816 co-relation queries the response was YES. [2024-11-10 22:22:43,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51392 conditions, 28745 events. 16170/28745 cut-off events. For 816/816 co-relation queries the response was YES. Maximal size of possible extension queue 1631. Compared 258799 event pairs, 4950 based on Foata normal form. 728/24141 useless extension candidates. Maximal degree in co-relation 51371. Up to 10213 conditions per place. [2024-11-10 22:22:43,752 INFO L140 encePairwiseOnDemand]: 150/158 looper letters, 249 selfloop transitions, 5 changer transitions 0/324 dead transitions. [2024-11-10 22:22:43,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 324 transitions, 2015 flow [2024-11-10 22:22:43,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:43,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:43,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 454 transitions. [2024-11-10 22:22:43,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7183544303797469 [2024-11-10 22:22:43,753 INFO L175 Difference]: Start difference. First operand has 177 places, 275 transitions, 1403 flow. Second operand 4 states and 454 transitions. [2024-11-10 22:22:43,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 324 transitions, 2015 flow [2024-11-10 22:22:43,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 324 transitions, 1955 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:43,759 INFO L231 Difference]: Finished difference. Result has 180 places, 277 transitions, 1377 flow [2024-11-10 22:22:43,760 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=1341, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1377, PETRI_PLACES=180, PETRI_TRANSITIONS=277} [2024-11-10 22:22:43,760 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 38 predicate places. [2024-11-10 22:22:43,760 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 277 transitions, 1377 flow [2024-11-10 22:22:43,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.0) internal successors, (360), 4 states have internal predecessors, (360), 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 22:22:43,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:43,760 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:43,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 22:22:43,761 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:43,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:43,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1074477318, now seen corresponding path program 1 times [2024-11-10 22:22:43,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:43,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620482077] [2024-11-10 22:22:43,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:43,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:43,839 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 22:22:43,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:43,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620482077] [2024-11-10 22:22:43,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620482077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:43,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:43,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:43,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270562407] [2024-11-10 22:22:43,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:43,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:43,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:43,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:43,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:43,851 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 158 [2024-11-10 22:22:43,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 277 transitions, 1377 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 22:22:43,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:43,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 158 [2024-11-10 22:22:43,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:45,170 INFO L124 PetriNetUnfolderBase]: 10002/20181 cut-off events. [2024-11-10 22:22:45,170 INFO L125 PetriNetUnfolderBase]: For 4115/4659 co-relation queries the response was YES. [2024-11-10 22:22:45,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37069 conditions, 20181 events. 10002/20181 cut-off events. For 4115/4659 co-relation queries the response was YES. Maximal size of possible extension queue 1189. Compared 193642 event pairs, 6740 based on Foata normal form. 276/16725 useless extension candidates. Maximal degree in co-relation 37045. Up to 13425 conditions per place. [2024-11-10 22:22:45,284 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 204 selfloop transitions, 5 changer transitions 0/273 dead transitions. [2024-11-10 22:22:45,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 273 transitions, 1776 flow [2024-11-10 22:22:45,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:45,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:45,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2024-11-10 22:22:45,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.629746835443038 [2024-11-10 22:22:45,285 INFO L175 Difference]: Start difference. First operand has 180 places, 277 transitions, 1377 flow. Second operand 4 states and 398 transitions. [2024-11-10 22:22:45,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 273 transitions, 1776 flow [2024-11-10 22:22:45,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 273 transitions, 1776 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:22:45,295 INFO L231 Difference]: Finished difference. Result has 183 places, 273 transitions, 1368 flow [2024-11-10 22:22:45,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=1358, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1368, PETRI_PLACES=183, PETRI_TRANSITIONS=273} [2024-11-10 22:22:45,296 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 41 predicate places. [2024-11-10 22:22:45,296 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 273 transitions, 1368 flow [2024-11-10 22:22:45,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 22:22:45,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:45,296 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:45,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 22:22:45,296 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:45,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:45,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1486076315, now seen corresponding path program 1 times [2024-11-10 22:22:45,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:45,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991875152] [2024-11-10 22:22:45,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:45,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:45,407 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:22:45,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:45,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991875152] [2024-11-10 22:22:45,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991875152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:45,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:45,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:45,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123421925] [2024-11-10 22:22:45,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:45,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:45,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:45,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:45,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:45,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 158 [2024-11-10 22:22:45,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 273 transitions, 1368 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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 22:22:45,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:45,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 158 [2024-11-10 22:22:45,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:46,982 INFO L124 PetriNetUnfolderBase]: 10000/20177 cut-off events. [2024-11-10 22:22:46,982 INFO L125 PetriNetUnfolderBase]: For 4123/4667 co-relation queries the response was YES. [2024-11-10 22:22:47,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37061 conditions, 20177 events. 10000/20177 cut-off events. For 4123/4667 co-relation queries the response was YES. Maximal size of possible extension queue 1189. Compared 193348 event pairs, 6740 based on Foata normal form. 276/16721 useless extension candidates. Maximal degree in co-relation 37035. Up to 13421 conditions per place. [2024-11-10 22:22:47,100 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 200 selfloop transitions, 5 changer transitions 0/269 dead transitions. [2024-11-10 22:22:47,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 269 transitions, 1759 flow [2024-11-10 22:22:47,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:47,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:47,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2024-11-10 22:22:47,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.629746835443038 [2024-11-10 22:22:47,101 INFO L175 Difference]: Start difference. First operand has 183 places, 273 transitions, 1368 flow. Second operand 4 states and 398 transitions. [2024-11-10 22:22:47,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 269 transitions, 1759 flow [2024-11-10 22:22:47,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 269 transitions, 1753 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:22:47,115 INFO L231 Difference]: Finished difference. Result has 184 places, 269 transitions, 1353 flow [2024-11-10 22:22:47,115 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=1343, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1353, PETRI_PLACES=184, PETRI_TRANSITIONS=269} [2024-11-10 22:22:47,116 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 42 predicate places. [2024-11-10 22:22:47,116 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 269 transitions, 1353 flow [2024-11-10 22:22:47,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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 22:22:47,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:47,117 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:47,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 22:22:47,117 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:47,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:47,118 INFO L85 PathProgramCache]: Analyzing trace with hash 988050099, now seen corresponding path program 2 times [2024-11-10 22:22:47,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:47,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94889487] [2024-11-10 22:22:47,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:47,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:47,434 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 26 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:22:47,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:47,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94889487] [2024-11-10 22:22:47,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94889487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:22:47,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049453191] [2024-11-10 22:22:47,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:22:47,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:47,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:47,436 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:22:47,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 22:22:47,533 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:22:47,533 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:22:47,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:22:47,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:22:47,577 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-10 22:22:47,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:22:47,608 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-10 22:22:47,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049453191] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:22:47,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:22:47,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 3, 3] total 19 [2024-11-10 22:22:47,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427156904] [2024-11-10 22:22:47,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:22:47,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 22:22:47,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:47,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 22:22:47,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-10 22:22:47,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 158 [2024-11-10 22:22:47,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 269 transitions, 1353 flow. Second operand has 19 states, 19 states have (on average 70.57894736842105) internal successors, (1341), 19 states have internal predecessors, (1341), 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 22:22:47,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:47,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 158 [2024-11-10 22:22:47,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:50,622 INFO L124 PetriNetUnfolderBase]: 14996/30235 cut-off events. [2024-11-10 22:22:50,623 INFO L125 PetriNetUnfolderBase]: For 6216/7035 co-relation queries the response was YES. [2024-11-10 22:22:50,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55528 conditions, 30235 events. 14996/30235 cut-off events. For 6216/7035 co-relation queries the response was YES. Maximal size of possible extension queue 1539. Compared 303347 event pairs, 10110 based on Foata normal form. 420/25239 useless extension candidates. Maximal degree in co-relation 55502. Up to 13273 conditions per place. [2024-11-10 22:22:50,763 INFO L140 encePairwiseOnDemand]: 127/158 looper letters, 127 selfloop transitions, 201 changer transitions 0/385 dead transitions. [2024-11-10 22:22:50,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 385 transitions, 2606 flow [2024-11-10 22:22:50,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 22:22:50,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-10 22:22:50,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1573 transitions. [2024-11-10 22:22:50,765 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.474080771549126 [2024-11-10 22:22:50,765 INFO L175 Difference]: Start difference. First operand has 184 places, 269 transitions, 1353 flow. Second operand 21 states and 1573 transitions. [2024-11-10 22:22:50,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 385 transitions, 2606 flow [2024-11-10 22:22:50,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 385 transitions, 2522 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-11-10 22:22:50,780 INFO L231 Difference]: Finished difference. Result has 199 places, 346 transitions, 2392 flow [2024-11-10 22:22:50,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=1265, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2392, PETRI_PLACES=199, PETRI_TRANSITIONS=346} [2024-11-10 22:22:50,780 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 57 predicate places. [2024-11-10 22:22:50,780 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 346 transitions, 2392 flow [2024-11-10 22:22:50,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 70.57894736842105) internal successors, (1341), 19 states have internal predecessors, (1341), 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 22:22:50,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:50,781 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:50,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-10 22:22:50,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:50,983 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:50,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:50,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1942799749, now seen corresponding path program 1 times [2024-11-10 22:22:50,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:50,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389625389] [2024-11-10 22:22:50,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:50,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:51,072 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-10 22:22:51,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:51,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389625389] [2024-11-10 22:22:51,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389625389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:22:51,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:22:51,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:22:51,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379454828] [2024-11-10 22:22:51,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:22:51,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:22:51,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:51,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:22:51,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:22:51,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 158 [2024-11-10 22:22:51,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 346 transitions, 2392 flow. Second operand has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 22:22:51,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:51,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 158 [2024-11-10 22:22:51,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:22:53,347 INFO L124 PetriNetUnfolderBase]: 14993/30229 cut-off events. [2024-11-10 22:22:53,347 INFO L125 PetriNetUnfolderBase]: For 7028/7844 co-relation queries the response was YES. [2024-11-10 22:22:53,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55779 conditions, 30229 events. 14993/30229 cut-off events. For 7028/7844 co-relation queries the response was YES. Maximal size of possible extension queue 1538. Compared 302888 event pairs, 10110 based on Foata normal form. 411/25042 useless extension candidates. Maximal degree in co-relation 55754. Up to 20113 conditions per place. [2024-11-10 22:22:53,482 INFO L140 encePairwiseOnDemand]: 154/158 looper letters, 271 selfloop transitions, 7 changer transitions 0/340 dead transitions. [2024-11-10 22:22:53,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 340 transitions, 2905 flow [2024-11-10 22:22:53,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:22:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:22:53,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2024-11-10 22:22:53,483 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.629746835443038 [2024-11-10 22:22:53,483 INFO L175 Difference]: Start difference. First operand has 199 places, 346 transitions, 2392 flow. Second operand 4 states and 398 transitions. [2024-11-10 22:22:53,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 340 transitions, 2905 flow [2024-11-10 22:22:53,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 340 transitions, 2892 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-10 22:22:53,497 INFO L231 Difference]: Finished difference. Result has 196 places, 340 transitions, 2350 flow [2024-11-10 22:22:53,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=2336, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2350, PETRI_PLACES=196, PETRI_TRANSITIONS=340} [2024-11-10 22:22:53,497 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 54 predicate places. [2024-11-10 22:22:53,497 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 340 transitions, 2350 flow [2024-11-10 22:22:53,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.25) internal successors, (361), 4 states have internal predecessors, (361), 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 22:22:53,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:22:53,498 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:22:53,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 22:22:53,498 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:22:53,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:22:53,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1927138848, now seen corresponding path program 1 times [2024-11-10 22:22:53,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:22:53,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468329610] [2024-11-10 22:22:53,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:53,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:22:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:54,164 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:22:54,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:22:54,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468329610] [2024-11-10 22:22:54,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468329610] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:22:54,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545916469] [2024-11-10 22:22:54,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:22:54,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:22:54,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:22:54,167 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:22:54,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 22:22:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:22:54,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-10 22:22:54,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:22:54,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-10 22:22:54,356 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 23 treesize of output 1 [2024-11-10 22:22:54,561 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 22:22:54,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-10 22:22:54,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-10 22:22:54,851 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-10 22:22:54,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2024-11-10 22:22:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:22:54,865 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:22:55,078 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 22:22:55,079 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2024-11-10 22:22:55,086 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 22:22:55,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 33 [2024-11-10 22:22:55,089 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 13 treesize of output 7 [2024-11-10 22:22:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:22:55,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545916469] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:22:55,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:22:55,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-10 22:22:55,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591654478] [2024-11-10 22:22:55,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:22:55,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-10 22:22:55,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:22:55,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-10 22:22:55,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=555, Unknown=1, NotChecked=0, Total=650 [2024-11-10 22:22:56,255 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 158 [2024-11-10 22:22:56,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 340 transitions, 2350 flow. Second operand has 26 states, 26 states have (on average 66.6923076923077) internal successors, (1734), 26 states have internal predecessors, (1734), 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 22:22:56,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:22:56,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 158 [2024-11-10 22:22:56,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:23:02,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-10 22:23:06,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-10 22:23:10,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2024-11-10 22:23:27,450 INFO L124 PetriNetUnfolderBase]: 116697/178141 cut-off events. [2024-11-10 22:23:27,451 INFO L125 PetriNetUnfolderBase]: For 20659/21325 co-relation queries the response was YES. [2024-11-10 22:23:28,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363896 conditions, 178141 events. 116697/178141 cut-off events. For 20659/21325 co-relation queries the response was YES. Maximal size of possible extension queue 6283. Compared 1574170 event pairs, 26223 based on Foata normal form. 666/156760 useless extension candidates. Maximal degree in co-relation 363869. Up to 37179 conditions per place. [2024-11-10 22:23:29,182 INFO L140 encePairwiseOnDemand]: 139/158 looper letters, 659 selfloop transitions, 190 changer transitions 0/902 dead transitions. [2024-11-10 22:23:29,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 902 transitions, 7481 flow [2024-11-10 22:23:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-10 22:23:29,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-10 22:23:29,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2057 transitions. [2024-11-10 22:23:29,184 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48218471636193155 [2024-11-10 22:23:29,184 INFO L175 Difference]: Start difference. First operand has 196 places, 340 transitions, 2350 flow. Second operand 27 states and 2057 transitions. [2024-11-10 22:23:29,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 902 transitions, 7481 flow [2024-11-10 22:23:30,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 902 transitions, 7461 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:23:30,257 INFO L231 Difference]: Finished difference. Result has 225 places, 444 transitions, 3875 flow [2024-11-10 22:23:30,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=2342, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=3875, PETRI_PLACES=225, PETRI_TRANSITIONS=444} [2024-11-10 22:23:30,258 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, 83 predicate places. [2024-11-10 22:23:30,258 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 444 transitions, 3875 flow [2024-11-10 22:23:30,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 66.6923076923077) internal successors, (1734), 26 states have internal predecessors, (1734), 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 22:23:30,259 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:23:30,259 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:23:30,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 22:23:30,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:30,463 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-10 22:23:30,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:23:30,464 INFO L85 PathProgramCache]: Analyzing trace with hash -388267260, now seen corresponding path program 1 times [2024-11-10 22:23:30,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:23:30,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544135494] [2024-11-10 22:23:30,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:30,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:23:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:31,120 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:23:31,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:23:31,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544135494] [2024-11-10 22:23:31,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544135494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:23:31,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760322722] [2024-11-10 22:23:31,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:23:31,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:23:31,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:23:31,122 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:23:31,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 22:23:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:23:31,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-10 22:23:31,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:23:31,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-10 22:23:31,300 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 22:23:31,435 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-10 22:23:31,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-10 22:23:31,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-10 22:23:31,623 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 22:23:31,629 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:23:31,629 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:23:31,740 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_424 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int#2| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_424) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 4294967296))) is different from false [2024-11-10 22:23:31,891 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 22:23:31,891 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2024-11-10 22:23:31,899 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 22:23:31,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 39 [2024-11-10 22:23:31,904 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 15 treesize of output 9 [2024-11-10 22:23:31,975 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 2 not checked. [2024-11-10 22:23:31,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760322722] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:23:31,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:23:31,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-10 22:23:31,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334758931] [2024-11-10 22:23:31,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:23:31,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-10 22:23:31,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:23:31,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-10 22:23:31,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=511, Unknown=1, NotChecked=46, Total=650 [2024-11-10 22:23:32,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 158 [2024-11-10 22:23:32,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 444 transitions, 3875 flow. Second operand has 26 states, 26 states have (on average 66.6923076923077) internal successors, (1734), 26 states have internal predecessors, (1734), 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 22:23:32,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:23:32,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 158 [2024-11-10 22:23:32,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand