./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 3061b6dc 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.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:03:18,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:03:18,757 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:03:18,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:03:18,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:03:18,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:03:18,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:03:18,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:03:18,793 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:03:18,794 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:03:18,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:03:18,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:03:18,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:03:18,797 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:03:18,797 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:03:18,798 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:03:18,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:03:18,798 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:03:18,798 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:03:18,799 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:03:18,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:03:18,800 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:03:18,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:03:18,803 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:03:18,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:03:18,804 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:03:18,804 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:03:18,804 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:03:18,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:03:18,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:03:18,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:03:18,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:03:18,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:03:18,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:03:18,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:03:18,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:03:18,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:03:18,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:03:18,808 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:03:18,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:03:18,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:03:18,809 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:03:18,809 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:03:18,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:03:18,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf [2024-11-19 14:03:19,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:03:19,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:03:19,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:03:19,125 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:03:19,125 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:03:19,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2024-11-19 14:03:20,722 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:03:20,937 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:03:20,938 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2024-11-19 14:03:20,946 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f4539aa3/7193ea8a4f584665a52bfaafc333e0d8/FLAG02fdad589 [2024-11-19 14:03:20,965 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f4539aa3/7193ea8a4f584665a52bfaafc333e0d8 [2024-11-19 14:03:20,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:03:20,968 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:03:20,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:03:20,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:03:20,976 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:03:20,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:20" (1/1) ... [2024-11-19 14:03:20,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ce460b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:20, skipping insertion in model container [2024-11-19 14:03:20,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:03:20" (1/1) ... [2024-11-19 14:03:21,003 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:03:21,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:03:21,266 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:03:21,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:03:21,312 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:03:21,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21 WrapperNode [2024-11-19 14:03:21,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:03:21,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:03:21,315 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:03:21,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:03:21,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21" (1/1) ... [2024-11-19 14:03:21,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21" (1/1) ... [2024-11-19 14:03:21,371 INFO L138 Inliner]: procedures = 26, calls = 52, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 492 [2024-11-19 14:03:21,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:03:21,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:03:21,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:03:21,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:03:21,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21" (1/1) ... [2024-11-19 14:03:21,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21" (1/1) ... [2024-11-19 14:03:21,390 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21" (1/1) ... [2024-11-19 14:03:21,419 INFO L175 MemorySlicer]: Split 26 memory accesses to 3 slices as follows [2, 15, 9]. 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]. [2024-11-19 14:03:21,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21" (1/1) ... [2024-11-19 14:03:21,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21" (1/1) ... [2024-11-19 14:03:21,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21" (1/1) ... [2024-11-19 14:03:21,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21" (1/1) ... [2024-11-19 14:03:21,448 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21" (1/1) ... [2024-11-19 14:03:21,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21" (1/1) ... [2024-11-19 14:03:21,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:03:21,461 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:03:21,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:03:21,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:03:21,463 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21" (1/1) ... [2024-11-19 14:03:21,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:03:21,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:21,519 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) [2024-11-19 14:03:21,522 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 [2024-11-19 14:03:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:03:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:03:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:03:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 14:03:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:03:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:03:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 14:03:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:03:21,578 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:03:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:03:21,581 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:03:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 14:03:21,581 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 14:03:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:03:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:03:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 14:03:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 14:03:21,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:03:21,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:03:21,584 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:03:21,718 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:03:21,720 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:03:22,517 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:03:22,517 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:03:22,977 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:03:22,978 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-19 14:03:22,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:22 BoogieIcfgContainer [2024-11-19 14:03:22,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:03:22,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:03:22,982 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:03:22,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:03:22,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:03:20" (1/3) ... [2024-11-19 14:03:22,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481457e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:22, skipping insertion in model container [2024-11-19 14:03:22,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:03:21" (2/3) ... [2024-11-19 14:03:22,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481457e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:03:22, skipping insertion in model container [2024-11-19 14:03:22,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:03:22" (3/3) ... [2024-11-19 14:03:22,991 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2024-11-19 14:03:23,010 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:03:23,010 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-19 14:03:23,010 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:03:23,108 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 14:03:23,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 140 transitions, 301 flow [2024-11-19 14:03:23,219 INFO L124 PetriNetUnfolderBase]: 15/137 cut-off events. [2024-11-19 14:03:23,219 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 14:03:23,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 15/137 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 404 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2024-11-19 14:03:23,226 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 140 transitions, 301 flow [2024-11-19 14:03:23,234 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 135 transitions, 285 flow [2024-11-19 14:03:23,246 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:03:23,255 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;@17b9723e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:03:23,255 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-11-19 14:03:23,259 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:03:23,259 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-19 14:03:23,259 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:03:23,259 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:23,260 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-19 14:03:23,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:23,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:23,265 INFO L85 PathProgramCache]: Analyzing trace with hash 46888, now seen corresponding path program 1 times [2024-11-19 14:03:23,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:23,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082429029] [2024-11-19 14:03:23,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:23,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:23,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:23,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:23,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082429029] [2024-11-19 14:03:23,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082429029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:23,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:23,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:03:23,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114166813] [2024-11-19 14:03:23,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:23,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:23,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:23,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:23,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:23,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:23,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 135 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-19 14:03:23,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:23,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:23,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:24,733 INFO L124 PetriNetUnfolderBase]: 4133/8026 cut-off events. [2024-11-19 14:03:24,733 INFO L125 PetriNetUnfolderBase]: For 237/237 co-relation queries the response was YES. [2024-11-19 14:03:24,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13743 conditions, 8026 events. 4133/8026 cut-off events. For 237/237 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65987 event pairs, 2732 based on Foata normal form. 2/6384 useless extension candidates. Maximal degree in co-relation 13014. Up to 5498 conditions per place. [2024-11-19 14:03:24,866 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 61 selfloop transitions, 1 changer transitions 0/133 dead transitions. [2024-11-19 14:03:24,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 133 transitions, 405 flow [2024-11-19 14:03:24,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:24,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-19 14:03:24,884 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-19 14:03:24,887 INFO L175 Difference]: Start difference. First operand has 130 places, 135 transitions, 285 flow. Second operand 3 states and 286 transitions. [2024-11-19 14:03:24,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 133 transitions, 405 flow [2024-11-19 14:03:24,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 133 transitions, 396 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 14:03:24,902 INFO L231 Difference]: Finished difference. Result has 125 places, 133 transitions, 274 flow [2024-11-19 14:03:24,905 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=125, PETRI_TRANSITIONS=133} [2024-11-19 14:03:24,910 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2024-11-19 14:03:24,911 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 133 transitions, 274 flow [2024-11-19 14:03:24,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-19 14:03:24,911 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:24,911 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 14:03:24,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:03:24,912 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:24,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:24,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1455072, now seen corresponding path program 1 times [2024-11-19 14:03:24,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:24,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587271745] [2024-11-19 14:03:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:24,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:25,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:25,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:25,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587271745] [2024-11-19 14:03:25,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587271745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:25,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:25,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:03:25,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555091353] [2024-11-19 14:03:25,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:25,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:25,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:25,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:25,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:25,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:25,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-19 14:03:25,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:25,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:25,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:26,006 INFO L124 PetriNetUnfolderBase]: 4133/8024 cut-off events. [2024-11-19 14:03:26,010 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-19 14:03:26,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13658 conditions, 8024 events. 4133/8024 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66088 event pairs, 2732 based on Foata normal form. 0/6382 useless extension candidates. Maximal degree in co-relation 13652. Up to 5496 conditions per place. [2024-11-19 14:03:26,065 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 59 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-11-19 14:03:26,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 131 transitions, 390 flow [2024-11-19 14:03:26,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:26,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:26,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-19 14:03:26,068 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-19 14:03:26,068 INFO L175 Difference]: Start difference. First operand has 125 places, 133 transitions, 274 flow. Second operand 3 states and 284 transitions. [2024-11-19 14:03:26,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 131 transitions, 390 flow [2024-11-19 14:03:26,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 131 transitions, 389 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:26,071 INFO L231 Difference]: Finished difference. Result has 124 places, 131 transitions, 271 flow [2024-11-19 14:03:26,071 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=124, PETRI_TRANSITIONS=131} [2024-11-19 14:03:26,072 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -6 predicate places. [2024-11-19 14:03:26,072 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 131 transitions, 271 flow [2024-11-19 14:03:26,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2024-11-19 14:03:26,072 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:26,073 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 14:03:26,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 14:03:26,073 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:26,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:26,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1398373587, now seen corresponding path program 1 times [2024-11-19 14:03:26,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:26,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180742487] [2024-11-19 14:03:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:26,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:26,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:26,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:26,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180742487] [2024-11-19 14:03:26,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180742487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:26,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:26,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:26,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773121785] [2024-11-19 14:03:26,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:26,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:26,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:26,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:26,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:26,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:26,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 131 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2024-11-19 14:03:26,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:26,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:26,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:27,207 INFO L124 PetriNetUnfolderBase]: 4136/8036 cut-off events. [2024-11-19 14:03:27,209 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-19 14:03:27,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13686 conditions, 8036 events. 4136/8036 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66179 event pairs, 2732 based on Foata normal form. 3/6394 useless extension candidates. Maximal degree in co-relation 13679. Up to 5506 conditions per place. [2024-11-19 14:03:27,276 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 63 selfloop transitions, 12 changer transitions 0/140 dead transitions. [2024-11-19 14:03:27,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 140 transitions, 439 flow [2024-11-19 14:03:27,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:27,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:27,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-11-19 14:03:27,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-11-19 14:03:27,280 INFO L175 Difference]: Start difference. First operand has 124 places, 131 transitions, 271 flow. Second operand 4 states and 369 transitions. [2024-11-19 14:03:27,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 140 transitions, 439 flow [2024-11-19 14:03:27,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 140 transitions, 438 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:27,284 INFO L231 Difference]: Finished difference. Result has 128 places, 140 transitions, 357 flow [2024-11-19 14:03:27,285 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=128, PETRI_TRANSITIONS=140} [2024-11-19 14:03:27,285 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -2 predicate places. [2024-11-19 14:03:27,286 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 140 transitions, 357 flow [2024-11-19 14:03:27,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2024-11-19 14:03:27,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:27,286 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 14:03:27,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:03:27,287 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:27,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:27,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1398373678, now seen corresponding path program 1 times [2024-11-19 14:03:27,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:27,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107795095] [2024-11-19 14:03:27,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:27,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:27,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:27,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:27,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107795095] [2024-11-19 14:03:27,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107795095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:27,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:27,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:03:27,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161876843] [2024-11-19 14:03:27,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:27,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:27,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:27,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:27,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:27,372 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:27,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 140 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-19 14:03:27,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:27,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:27,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:28,257 INFO L124 PetriNetUnfolderBase]: 4136/8034 cut-off events. [2024-11-19 14:03:28,258 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-11-19 14:03:28,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13718 conditions, 8034 events. 4136/8034 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66112 event pairs, 2732 based on Foata normal form. 2/6398 useless extension candidates. Maximal degree in co-relation 13709. Up to 5507 conditions per place. [2024-11-19 14:03:28,332 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/138 dead transitions. [2024-11-19 14:03:28,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 138 transitions, 495 flow [2024-11-19 14:03:28,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:28,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:28,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-19 14:03:28,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-19 14:03:28,336 INFO L175 Difference]: Start difference. First operand has 128 places, 140 transitions, 357 flow. Second operand 3 states and 286 transitions. [2024-11-19 14:03:28,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 138 transitions, 495 flow [2024-11-19 14:03:28,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 138 transitions, 486 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:28,340 INFO L231 Difference]: Finished difference. Result has 127 places, 138 transitions, 346 flow [2024-11-19 14:03:28,340 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=127, PETRI_TRANSITIONS=138} [2024-11-19 14:03:28,341 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-11-19 14:03:28,341 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 138 transitions, 346 flow [2024-11-19 14:03:28,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-19 14:03:28,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:28,342 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 14:03:28,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 14:03:28,342 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:28,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:28,345 INFO L85 PathProgramCache]: Analyzing trace with hash 399912571, now seen corresponding path program 1 times [2024-11-19 14:03:28,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:28,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28107954] [2024-11-19 14:03:28,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:28,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:28,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:28,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28107954] [2024-11-19 14:03:28,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28107954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:28,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:28,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:03:28,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959292374] [2024-11-19 14:03:28,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:28,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:28,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:28,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:28,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:28,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:28,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 138 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-19 14:03:28,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:28,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:28,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:29,166 INFO L124 PetriNetUnfolderBase]: 4136/8032 cut-off events. [2024-11-19 14:03:29,167 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-11-19 14:03:29,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13709 conditions, 8032 events. 4136/8032 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66163 event pairs, 2732 based on Foata normal form. 1/6396 useless extension candidates. Maximal degree in co-relation 13699. Up to 5505 conditions per place. [2024-11-19 14:03:29,236 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 68 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2024-11-19 14:03:29,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 136 transitions, 480 flow [2024-11-19 14:03:29,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:29,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:29,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-19 14:03:29,239 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-19 14:03:29,239 INFO L175 Difference]: Start difference. First operand has 127 places, 138 transitions, 346 flow. Second operand 3 states and 284 transitions. [2024-11-19 14:03:29,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 136 transitions, 480 flow [2024-11-19 14:03:29,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 136 transitions, 479 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:29,243 INFO L231 Difference]: Finished difference. Result has 126 places, 136 transitions, 343 flow [2024-11-19 14:03:29,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=126, PETRI_TRANSITIONS=136} [2024-11-19 14:03:29,245 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -4 predicate places. [2024-11-19 14:03:29,246 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 136 transitions, 343 flow [2024-11-19 14:03:29,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2024-11-19 14:03:29,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:29,246 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:29,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 14:03:29,246 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:29,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:29,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2061233645, now seen corresponding path program 1 times [2024-11-19 14:03:29,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:29,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303406542] [2024-11-19 14:03:29,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:29,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:29,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:29,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:29,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303406542] [2024-11-19 14:03:29,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303406542] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:29,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539917876] [2024-11-19 14:03:29,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:29,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:29,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:29,370 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) [2024-11-19 14:03:29,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 14:03:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:29,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:03:29,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:29,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:29,528 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:03:29,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539917876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:29,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:03:29,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-19 14:03:29,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394296398] [2024-11-19 14:03:29,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:29,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:03:29,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:29,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:03:29,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:03:29,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:29,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 136 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2024-11-19 14:03:29,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:29,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:29,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:30,606 INFO L124 PetriNetUnfolderBase]: 4140/8022 cut-off events. [2024-11-19 14:03:30,607 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2024-11-19 14:03:30,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13706 conditions, 8022 events. 4140/8022 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65806 event pairs, 2736 based on Foata normal form. 3/6399 useless extension candidates. Maximal degree in co-relation 13695. Up to 5497 conditions per place. [2024-11-19 14:03:30,686 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 51 selfloop transitions, 21 changer transitions 0/133 dead transitions. [2024-11-19 14:03:30,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 133 transitions, 475 flow [2024-11-19 14:03:30,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:03:30,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:03:30,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2024-11-19 14:03:30,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2024-11-19 14:03:30,689 INFO L175 Difference]: Start difference. First operand has 126 places, 136 transitions, 343 flow. Second operand 6 states and 507 transitions. [2024-11-19 14:03:30,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 133 transitions, 475 flow [2024-11-19 14:03:30,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 133 transitions, 474 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:30,693 INFO L231 Difference]: Finished difference. Result has 127 places, 133 transitions, 372 flow [2024-11-19 14:03:30,693 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=127, PETRI_TRANSITIONS=133} [2024-11-19 14:03:30,694 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2024-11-19 14:03:30,694 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 133 transitions, 372 flow [2024-11-19 14:03:30,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2024-11-19 14:03:30,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:30,695 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:30,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 14:03:30,899 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 [2024-11-19 14:03:30,900 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:30,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:30,902 INFO L85 PathProgramCache]: Analyzing trace with hash 2063938383, now seen corresponding path program 1 times [2024-11-19 14:03:30,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:30,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651863168] [2024-11-19 14:03:30,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:30,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:30,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:30,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:30,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651863168] [2024-11-19 14:03:30,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651863168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:30,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:30,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:03:30,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009499646] [2024-11-19 14:03:30,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:30,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:30,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:30,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:30,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:30,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:30,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 133 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-19 14:03:30,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:30,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:30,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:31,878 INFO L124 PetriNetUnfolderBase]: 4140/8020 cut-off events. [2024-11-19 14:03:31,879 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-19 14:03:31,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13724 conditions, 8020 events. 4140/8020 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65808 event pairs, 2736 based on Foata normal form. 2/6400 useless extension candidates. Maximal degree in co-relation 13713. Up to 5513 conditions per place. [2024-11-19 14:03:31,923 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-11-19 14:03:31,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 131 transitions, 510 flow [2024-11-19 14:03:31,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:31,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:31,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2024-11-19 14:03:31,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2024-11-19 14:03:31,925 INFO L175 Difference]: Start difference. First operand has 127 places, 133 transitions, 372 flow. Second operand 3 states and 286 transitions. [2024-11-19 14:03:31,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 131 transitions, 510 flow [2024-11-19 14:03:31,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 131 transitions, 465 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:31,929 INFO L231 Difference]: Finished difference. Result has 123 places, 131 transitions, 325 flow [2024-11-19 14:03:31,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=123, PETRI_TRANSITIONS=131} [2024-11-19 14:03:31,929 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, -7 predicate places. [2024-11-19 14:03:31,930 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 131 transitions, 325 flow [2024-11-19 14:03:31,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-19 14:03:31,930 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:31,930 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-19 14:03:31,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 14:03:31,931 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:31,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:31,931 INFO L85 PathProgramCache]: Analyzing trace with hash -526264928, now seen corresponding path program 1 times [2024-11-19 14:03:31,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:31,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944609182] [2024-11-19 14:03:31,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:31,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:32,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:32,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:32,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944609182] [2024-11-19 14:03:32,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944609182] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:32,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778958168] [2024-11-19 14:03:32,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:32,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:32,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:32,007 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) [2024-11-19 14:03:32,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 14:03:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:32,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:03:32,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:32,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:32,127 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:32,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778958168] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:32,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:32,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 14:03:32,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653319329] [2024-11-19 14:03:32,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:32,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:03:32,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:32,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:03:32,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:03:32,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:32,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 131 transitions, 325 flow. Second operand has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2024-11-19 14:03:32,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:32,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:32,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:33,032 INFO L124 PetriNetUnfolderBase]: 4149/8056 cut-off events. [2024-11-19 14:03:33,033 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-11-19 14:03:33,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13791 conditions, 8056 events. 4149/8056 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65984 event pairs, 2736 based on Foata normal form. 9/6435 useless extension candidates. Maximal degree in co-relation 13780. Up to 5518 conditions per place. [2024-11-19 14:03:33,102 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 60 selfloop transitions, 39 changer transitions 0/158 dead transitions. [2024-11-19 14:03:33,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 158 transitions, 640 flow [2024-11-19 14:03:33,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:03:33,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:03:33,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-11-19 14:03:33,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-11-19 14:03:33,105 INFO L175 Difference]: Start difference. First operand has 123 places, 131 transitions, 325 flow. Second operand 10 states and 828 transitions. [2024-11-19 14:03:33,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 158 transitions, 640 flow [2024-11-19 14:03:33,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 158 transitions, 639 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:33,109 INFO L231 Difference]: Finished difference. Result has 134 places, 158 transitions, 573 flow [2024-11-19 14:03:33,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=573, PETRI_PLACES=134, PETRI_TRANSITIONS=158} [2024-11-19 14:03:33,110 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 4 predicate places. [2024-11-19 14:03:33,110 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 158 transitions, 573 flow [2024-11-19 14:03:33,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2024-11-19 14:03:33,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:33,111 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:33,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 14:03:33,312 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,SelfDestructingSolverStorable7 [2024-11-19 14:03:33,313 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:33,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:33,313 INFO L85 PathProgramCache]: Analyzing trace with hash -442418035, now seen corresponding path program 1 times [2024-11-19 14:03:33,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:33,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183556553] [2024-11-19 14:03:33,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:33,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:33,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:33,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:33,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183556553] [2024-11-19 14:03:33,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183556553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:33,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:33,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:03:33,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029417549] [2024-11-19 14:03:33,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:33,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:03:33,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:33,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:03:33,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:03:33,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:33,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 158 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-19 14:03:33,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:33,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:33,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:33,955 INFO L124 PetriNetUnfolderBase]: 4149/8054 cut-off events. [2024-11-19 14:03:33,956 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-11-19 14:03:33,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13855 conditions, 8054 events. 4149/8054 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65915 event pairs, 2736 based on Foata normal form. 1/6434 useless extension candidates. Maximal degree in co-relation 13841. Up to 5538 conditions per place. [2024-11-19 14:03:34,015 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 95 selfloop transitions, 1 changer transitions 0/156 dead transitions. [2024-11-19 14:03:34,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 156 transitions, 761 flow [2024-11-19 14:03:34,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:03:34,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:03:34,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-19 14:03:34,017 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-19 14:03:34,017 INFO L175 Difference]: Start difference. First operand has 134 places, 158 transitions, 573 flow. Second operand 3 states and 284 transitions. [2024-11-19 14:03:34,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 156 transitions, 761 flow [2024-11-19 14:03:34,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 156 transitions, 728 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:34,022 INFO L231 Difference]: Finished difference. Result has 132 places, 156 transitions, 538 flow [2024-11-19 14:03:34,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=132, PETRI_TRANSITIONS=156} [2024-11-19 14:03:34,024 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 2 predicate places. [2024-11-19 14:03:34,024 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 156 transitions, 538 flow [2024-11-19 14:03:34,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2024-11-19 14:03:34,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:34,025 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:34,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 14:03:34,025 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:34,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:34,026 INFO L85 PathProgramCache]: Analyzing trace with hash 577326466, now seen corresponding path program 1 times [2024-11-19 14:03:34,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:34,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919116920] [2024-11-19 14:03:34,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:34,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:34,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:34,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:34,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919116920] [2024-11-19 14:03:34,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919116920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:34,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:34,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:34,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016941816] [2024-11-19 14:03:34,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:34,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:34,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:34,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:34,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:34,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:34,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 156 transitions, 538 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2024-11-19 14:03:34,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:34,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:34,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:34,792 INFO L124 PetriNetUnfolderBase]: 4152/8066 cut-off events. [2024-11-19 14:03:34,792 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-11-19 14:03:34,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13869 conditions, 8066 events. 4152/8066 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66051 event pairs, 2736 based on Foata normal form. 3/6445 useless extension candidates. Maximal degree in co-relation 13853. Up to 5548 conditions per place. [2024-11-19 14:03:34,859 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 99 selfloop transitions, 12 changer transitions 0/165 dead transitions. [2024-11-19 14:03:34,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 165 transitions, 778 flow [2024-11-19 14:03:34,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:34,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:34,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2024-11-19 14:03:34,861 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2024-11-19 14:03:34,861 INFO L175 Difference]: Start difference. First operand has 132 places, 156 transitions, 538 flow. Second operand 4 states and 369 transitions. [2024-11-19 14:03:34,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 165 transitions, 778 flow [2024-11-19 14:03:34,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 165 transitions, 777 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:34,866 INFO L231 Difference]: Finished difference. Result has 136 places, 165 transitions, 624 flow [2024-11-19 14:03:34,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=624, PETRI_PLACES=136, PETRI_TRANSITIONS=165} [2024-11-19 14:03:34,867 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 6 predicate places. [2024-11-19 14:03:34,867 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 165 transitions, 624 flow [2024-11-19 14:03:34,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2024-11-19 14:03:34,867 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:34,867 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:34,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 14:03:34,868 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:34,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:34,868 INFO L85 PathProgramCache]: Analyzing trace with hash 2085231517, now seen corresponding path program 1 times [2024-11-19 14:03:34,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:34,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566439630] [2024-11-19 14:03:34,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:34,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:03:34,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:34,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566439630] [2024-11-19 14:03:34,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566439630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:34,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:34,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:34,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706278596] [2024-11-19 14:03:34,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:34,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:34,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:34,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:34,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:35,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:35,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 165 transitions, 624 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2024-11-19 14:03:35,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:35,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:35,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:35,615 INFO L124 PetriNetUnfolderBase]: 4151/8065 cut-off events. [2024-11-19 14:03:35,616 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-11-19 14:03:35,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13898 conditions, 8065 events. 4151/8065 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66014 event pairs, 2736 based on Foata normal form. 1/6448 useless extension candidates. Maximal degree in co-relation 13880. Up to 5544 conditions per place. [2024-11-19 14:03:35,658 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 101 selfloop transitions, 3 changer transitions 0/164 dead transitions. [2024-11-19 14:03:35,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 164 transitions, 828 flow [2024-11-19 14:03:35,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:35,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:35,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-19 14:03:35,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-19 14:03:35,660 INFO L175 Difference]: Start difference. First operand has 136 places, 165 transitions, 624 flow. Second operand 4 states and 359 transitions. [2024-11-19 14:03:35,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 164 transitions, 828 flow [2024-11-19 14:03:35,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 164 transitions, 819 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:35,664 INFO L231 Difference]: Finished difference. Result has 138 places, 164 transitions, 617 flow [2024-11-19 14:03:35,665 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=617, PETRI_PLACES=138, PETRI_TRANSITIONS=164} [2024-11-19 14:03:35,666 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 8 predicate places. [2024-11-19 14:03:35,666 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 164 transitions, 617 flow [2024-11-19 14:03:35,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2024-11-19 14:03:35,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:35,666 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2024-11-19 14:03:35,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 14:03:35,667 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:35,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:35,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1543471110, now seen corresponding path program 2 times [2024-11-19 14:03:35,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:35,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119564934] [2024-11-19 14:03:35,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:03:35,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:35,680 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:03:35,681 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:03:35,745 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:03:35,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:35,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119564934] [2024-11-19 14:03:35,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119564934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:35,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526133409] [2024-11-19 14:03:35,746 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:03:35,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:35,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:35,752 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) [2024-11-19 14:03:35,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 14:03:35,845 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:03:35,845 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:03:35,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:03:35,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:35,874 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:03:35,874 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:35,916 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 14:03:35,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526133409] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:35,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:35,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2024-11-19 14:03:35,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569678485] [2024-11-19 14:03:35,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:35,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:03:35,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:35,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:03:35,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:03:35,952 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 140 [2024-11-19 14:03:35,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 164 transitions, 617 flow. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 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) [2024-11-19 14:03:35,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:35,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 140 [2024-11-19 14:03:35,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:36,512 INFO L124 PetriNetUnfolderBase]: 4151/8062 cut-off events. [2024-11-19 14:03:36,512 INFO L125 PetriNetUnfolderBase]: For 145/145 co-relation queries the response was YES. [2024-11-19 14:03:36,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13880 conditions, 8062 events. 4151/8062 cut-off events. For 145/145 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 66026 event pairs, 2736 based on Foata normal form. 3/6447 useless extension candidates. Maximal degree in co-relation 13861. Up to 5513 conditions per place. [2024-11-19 14:03:36,563 INFO L140 encePairwiseOnDemand]: 124/140 looper letters, 56 selfloop transitions, 48 changer transitions 0/161 dead transitions. [2024-11-19 14:03:36,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 161 transitions, 795 flow [2024-11-19 14:03:36,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:03:36,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:03:36,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 403 transitions. [2024-11-19 14:03:36,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757142857142857 [2024-11-19 14:03:36,565 INFO L175 Difference]: Start difference. First operand has 138 places, 164 transitions, 617 flow. Second operand 5 states and 403 transitions. [2024-11-19 14:03:36,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 161 transitions, 795 flow [2024-11-19 14:03:36,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 161 transitions, 761 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-19 14:03:36,569 INFO L231 Difference]: Finished difference. Result has 133 places, 161 transitions, 649 flow [2024-11-19 14:03:36,570 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=649, PETRI_PLACES=133, PETRI_TRANSITIONS=161} [2024-11-19 14:03:36,570 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2024-11-19 14:03:36,571 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 161 transitions, 649 flow [2024-11-19 14:03:36,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 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) [2024-11-19 14:03:36,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:36,571 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:36,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 14:03:36,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:36,772 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:36,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:36,773 INFO L85 PathProgramCache]: Analyzing trace with hash 2147071415, now seen corresponding path program 1 times [2024-11-19 14:03:36,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:36,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850726473] [2024-11-19 14:03:36,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:36,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:36,900 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:36,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:36,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850726473] [2024-11-19 14:03:36,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850726473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:36,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:36,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:36,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533606746] [2024-11-19 14:03:36,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:36,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:36,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:36,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:36,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:36,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:36,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 161 transitions, 649 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2024-11-19 14:03:36,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:36,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:36,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:37,639 INFO L124 PetriNetUnfolderBase]: 4150/8061 cut-off events. [2024-11-19 14:03:37,639 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-11-19 14:03:37,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13903 conditions, 8061 events. 4150/8061 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 65933 event pairs, 2736 based on Foata normal form. 0/6433 useless extension candidates. Maximal degree in co-relation 13888. Up to 5543 conditions per place. [2024-11-19 14:03:37,687 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 100 selfloop transitions, 3 changer transitions 0/160 dead transitions. [2024-11-19 14:03:37,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 160 transitions, 849 flow [2024-11-19 14:03:37,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:37,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:37,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-19 14:03:37,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-19 14:03:37,689 INFO L175 Difference]: Start difference. First operand has 133 places, 161 transitions, 649 flow. Second operand 4 states and 359 transitions. [2024-11-19 14:03:37,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 160 transitions, 849 flow [2024-11-19 14:03:37,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 160 transitions, 755 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:37,693 INFO L231 Difference]: Finished difference. Result has 132 places, 160 transitions, 555 flow [2024-11-19 14:03:37,693 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=555, PETRI_PLACES=132, PETRI_TRANSITIONS=160} [2024-11-19 14:03:37,693 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 2 predicate places. [2024-11-19 14:03:37,694 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 160 transitions, 555 flow [2024-11-19 14:03:37,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2024-11-19 14:03:37,694 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:37,694 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:37,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 14:03:37,695 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:37,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:37,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1056073208, now seen corresponding path program 1 times [2024-11-19 14:03:37,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:37,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308301969] [2024-11-19 14:03:37,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:37,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:37,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:37,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:37,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308301969] [2024-11-19 14:03:37,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308301969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:37,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:37,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:37,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913125983] [2024-11-19 14:03:37,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:37,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:37,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:37,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:37,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:37,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:37,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 160 transitions, 555 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2024-11-19 14:03:37,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:37,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:37,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:38,614 INFO L124 PetriNetUnfolderBase]: 4149/8060 cut-off events. [2024-11-19 14:03:38,614 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2024-11-19 14:03:38,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13856 conditions, 8060 events. 4149/8060 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 65887 event pairs, 2736 based on Foata normal form. 0/6433 useless extension candidates. Maximal degree in co-relation 13841. Up to 5542 conditions per place. [2024-11-19 14:03:38,687 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 99 selfloop transitions, 3 changer transitions 0/159 dead transitions. [2024-11-19 14:03:38,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 159 transitions, 755 flow [2024-11-19 14:03:38,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:38,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-19 14:03:38,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-19 14:03:38,690 INFO L175 Difference]: Start difference. First operand has 132 places, 160 transitions, 555 flow. Second operand 4 states and 359 transitions. [2024-11-19 14:03:38,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 159 transitions, 755 flow [2024-11-19 14:03:38,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 159 transitions, 751 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:38,693 INFO L231 Difference]: Finished difference. Result has 133 places, 159 transitions, 553 flow [2024-11-19 14:03:38,693 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=553, PETRI_PLACES=133, PETRI_TRANSITIONS=159} [2024-11-19 14:03:38,694 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2024-11-19 14:03:38,694 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 159 transitions, 553 flow [2024-11-19 14:03:38,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2024-11-19 14:03:38,694 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:38,694 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-19 14:03:38,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 14:03:38,695 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:38,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:38,696 INFO L85 PathProgramCache]: Analyzing trace with hash -852712849, now seen corresponding path program 1 times [2024-11-19 14:03:38,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:38,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117206859] [2024-11-19 14:03:38,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:38,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:38,839 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:38,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:38,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117206859] [2024-11-19 14:03:38,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117206859] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:38,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851379603] [2024-11-19 14:03:38,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:38,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:38,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:38,842 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) [2024-11-19 14:03:38,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 14:03:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:38,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:03:38,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:39,009 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:39,009 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:03:39,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851379603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:39,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:03:39,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-19 14:03:39,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934898273] [2024-11-19 14:03:39,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:39,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:03:39,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:39,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:03:39,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:03:39,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:39,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 159 transitions, 553 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2024-11-19 14:03:39,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:39,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:39,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:39,725 INFO L124 PetriNetUnfolderBase]: 4149/8057 cut-off events. [2024-11-19 14:03:39,725 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-19 14:03:39,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13854 conditions, 8057 events. 4149/8057 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 65807 event pairs, 2736 based on Foata normal form. 3/6430 useless extension candidates. Maximal degree in co-relation 13839. Up to 5530 conditions per place. [2024-11-19 14:03:39,767 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 84 selfloop transitions, 21 changer transitions 0/156 dead transitions. [2024-11-19 14:03:39,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 156 transitions, 751 flow [2024-11-19 14:03:39,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:03:39,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:03:39,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2024-11-19 14:03:39,770 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2024-11-19 14:03:39,770 INFO L175 Difference]: Start difference. First operand has 133 places, 159 transitions, 553 flow. Second operand 6 states and 507 transitions. [2024-11-19 14:03:39,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 156 transitions, 751 flow [2024-11-19 14:03:39,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 156 transitions, 747 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:39,773 INFO L231 Difference]: Finished difference. Result has 133 places, 156 transitions, 579 flow [2024-11-19 14:03:39,774 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=579, PETRI_PLACES=133, PETRI_TRANSITIONS=156} [2024-11-19 14:03:39,774 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2024-11-19 14:03:39,774 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 156 transitions, 579 flow [2024-11-19 14:03:39,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2024-11-19 14:03:39,775 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:39,775 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, 1, 1] [2024-11-19 14:03:39,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 14:03:39,975 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 [2024-11-19 14:03:39,976 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:39,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:39,976 INFO L85 PathProgramCache]: Analyzing trace with hash -664292993, now seen corresponding path program 1 times [2024-11-19 14:03:39,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:39,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944743988] [2024-11-19 14:03:39,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:39,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:40,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:40,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:40,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944743988] [2024-11-19 14:03:40,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944743988] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:40,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535749948] [2024-11-19 14:03:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:40,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:40,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:40,103 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) [2024-11-19 14:03:40,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 14:03:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:40,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:03:40,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:40,240 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:40,240 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:40,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:40,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535749948] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:40,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:40,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 14:03:40,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533040220] [2024-11-19 14:03:40,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:40,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:03:40,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:40,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:03:40,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:03:40,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:40,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 156 transitions, 579 flow. Second operand has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2024-11-19 14:03:40,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:40,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:40,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:40,994 INFO L124 PetriNetUnfolderBase]: 4158/8093 cut-off events. [2024-11-19 14:03:40,994 INFO L125 PetriNetUnfolderBase]: For 165/165 co-relation queries the response was YES. [2024-11-19 14:03:41,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13990 conditions, 8093 events. 4158/8093 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 66179 event pairs, 2736 based on Foata normal form. 9/6466 useless extension candidates. Maximal degree in co-relation 13976. Up to 5551 conditions per place. [2024-11-19 14:03:41,038 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 93 selfloop transitions, 39 changer transitions 0/183 dead transitions. [2024-11-19 14:03:41,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 183 transitions, 1005 flow [2024-11-19 14:03:41,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:03:41,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:03:41,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2024-11-19 14:03:41,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-11-19 14:03:41,041 INFO L175 Difference]: Start difference. First operand has 133 places, 156 transitions, 579 flow. Second operand 10 states and 828 transitions. [2024-11-19 14:03:41,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 183 transitions, 1005 flow [2024-11-19 14:03:41,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 183 transitions, 915 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:41,045 INFO L231 Difference]: Finished difference. Result has 141 places, 183 transitions, 783 flow [2024-11-19 14:03:41,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=783, PETRI_PLACES=141, PETRI_TRANSITIONS=183} [2024-11-19 14:03:41,046 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 11 predicate places. [2024-11-19 14:03:41,046 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 183 transitions, 783 flow [2024-11-19 14:03:41,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2024-11-19 14:03:41,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:41,047 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:41,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 14:03:41,247 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 [2024-11-19 14:03:41,248 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:41,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:41,248 INFO L85 PathProgramCache]: Analyzing trace with hash -90376987, now seen corresponding path program 1 times [2024-11-19 14:03:41,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:41,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704898995] [2024-11-19 14:03:41,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:41,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:41,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:41,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704898995] [2024-11-19 14:03:41,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704898995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:41,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:41,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:41,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923495496] [2024-11-19 14:03:41,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:41,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:41,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:41,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:41,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:41,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:03:41,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 183 transitions, 783 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2024-11-19 14:03:41,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:41,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:03:41,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:42,254 INFO L124 PetriNetUnfolderBase]: 8087/14033 cut-off events. [2024-11-19 14:03:42,254 INFO L125 PetriNetUnfolderBase]: For 201/201 co-relation queries the response was YES. [2024-11-19 14:03:42,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25329 conditions, 14033 events. 8087/14033 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 896. Compared 112459 event pairs, 2643 based on Foata normal form. 364/11800 useless extension candidates. Maximal degree in co-relation 25313. Up to 5113 conditions per place. [2024-11-19 14:03:42,374 INFO L140 encePairwiseOnDemand]: 132/140 looper letters, 179 selfloop transitions, 5 changer transitions 0/232 dead transitions. [2024-11-19 14:03:42,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 232 transitions, 1255 flow [2024-11-19 14:03:42,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:42,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 406 transitions. [2024-11-19 14:03:42,376 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.725 [2024-11-19 14:03:42,376 INFO L175 Difference]: Start difference. First operand has 141 places, 183 transitions, 783 flow. Second operand 4 states and 406 transitions. [2024-11-19 14:03:42,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 232 transitions, 1255 flow [2024-11-19 14:03:42,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 232 transitions, 1222 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:42,382 INFO L231 Difference]: Finished difference. Result has 144 places, 185 transitions, 784 flow [2024-11-19 14:03:42,382 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=784, PETRI_PLACES=144, PETRI_TRANSITIONS=185} [2024-11-19 14:03:42,383 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 14 predicate places. [2024-11-19 14:03:42,383 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 185 transitions, 784 flow [2024-11-19 14:03:42,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2024-11-19 14:03:42,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:42,383 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:42,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 14:03:42,384 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:42,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:42,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1493282289, now seen corresponding path program 1 times [2024-11-19 14:03:42,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:42,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326221982] [2024-11-19 14:03:42,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:42,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:42,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:03:42,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:42,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326221982] [2024-11-19 14:03:42,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326221982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:42,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:42,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:42,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718569299] [2024-11-19 14:03:42,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:42,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:42,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:42,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:42,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:42,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:42,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 185 transitions, 784 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2024-11-19 14:03:42,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:42,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:42,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:43,180 INFO L124 PetriNetUnfolderBase]: 5003/10046 cut-off events. [2024-11-19 14:03:43,181 INFO L125 PetriNetUnfolderBase]: For 1864/2136 co-relation queries the response was YES. [2024-11-19 14:03:43,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18452 conditions, 10046 events. 5003/10046 cut-off events. For 1864/2136 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 87749 event pairs, 3370 based on Foata normal form. 138/8303 useless extension candidates. Maximal degree in co-relation 18433. Up to 6706 conditions per place. [2024-11-19 14:03:43,247 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 127 selfloop transitions, 3 changer transitions 0/184 dead transitions. [2024-11-19 14:03:43,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 184 transitions, 1040 flow [2024-11-19 14:03:43,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:43,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:43,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-19 14:03:43,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-19 14:03:43,249 INFO L175 Difference]: Start difference. First operand has 144 places, 185 transitions, 784 flow. Second operand 4 states and 359 transitions. [2024-11-19 14:03:43,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 184 transitions, 1040 flow [2024-11-19 14:03:43,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 184 transitions, 1040 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:03:43,266 INFO L231 Difference]: Finished difference. Result has 147 places, 184 transitions, 786 flow [2024-11-19 14:03:43,267 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=786, PETRI_PLACES=147, PETRI_TRANSITIONS=184} [2024-11-19 14:03:43,267 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 17 predicate places. [2024-11-19 14:03:43,267 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 184 transitions, 786 flow [2024-11-19 14:03:43,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2024-11-19 14:03:43,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:43,268 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:43,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 14:03:43,268 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:43,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:43,268 INFO L85 PathProgramCache]: Analyzing trace with hash -174152482, now seen corresponding path program 2 times [2024-11-19 14:03:43,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:43,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915118060] [2024-11-19 14:03:43,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:03:43,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:43,297 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:03:43,298 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:03:43,364 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 14:03:43,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:43,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915118060] [2024-11-19 14:03:43,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915118060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:43,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998699903] [2024-11-19 14:03:43,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:03:43,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:43,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:43,368 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) [2024-11-19 14:03:43,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 14:03:43,486 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:03:43,487 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:03:43,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 14:03:43,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:43,535 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 14:03:43,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:43,587 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 14:03:43,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998699903] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:43,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:43,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 4 [2024-11-19 14:03:43,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618620153] [2024-11-19 14:03:43,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:43,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:03:43,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:43,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:03:43,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:03:43,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 140 [2024-11-19 14:03:43,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 184 transitions, 786 flow. Second operand has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 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) [2024-11-19 14:03:43,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:43,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 140 [2024-11-19 14:03:43,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:44,251 INFO L124 PetriNetUnfolderBase]: 5003/10043 cut-off events. [2024-11-19 14:03:44,251 INFO L125 PetriNetUnfolderBase]: For 1880/2152 co-relation queries the response was YES. [2024-11-19 14:03:44,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18441 conditions, 10043 events. 5003/10043 cut-off events. For 1880/2152 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 87807 event pairs, 3370 based on Foata normal form. 140/8302 useless extension candidates. Maximal degree in co-relation 18420. Up to 6675 conditions per place. [2024-11-19 14:03:44,329 INFO L140 encePairwiseOnDemand]: 124/140 looper letters, 82 selfloop transitions, 48 changer transitions 0/181 dead transitions. [2024-11-19 14:03:44,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 181 transitions, 1016 flow [2024-11-19 14:03:44,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:03:44,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:03:44,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 403 transitions. [2024-11-19 14:03:44,331 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757142857142857 [2024-11-19 14:03:44,332 INFO L175 Difference]: Start difference. First operand has 147 places, 184 transitions, 786 flow. Second operand 5 states and 403 transitions. [2024-11-19 14:03:44,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 181 transitions, 1016 flow [2024-11-19 14:03:44,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 181 transitions, 982 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-19 14:03:44,345 INFO L231 Difference]: Finished difference. Result has 142 places, 181 transitions, 818 flow [2024-11-19 14:03:44,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=818, PETRI_PLACES=142, PETRI_TRANSITIONS=181} [2024-11-19 14:03:44,346 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 12 predicate places. [2024-11-19 14:03:44,346 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 181 transitions, 818 flow [2024-11-19 14:03:44,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 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) [2024-11-19 14:03:44,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:44,347 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:44,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 14:03:44,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:44,548 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:44,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:44,548 INFO L85 PathProgramCache]: Analyzing trace with hash 251158034, now seen corresponding path program 1 times [2024-11-19 14:03:44,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:44,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673939431] [2024-11-19 14:03:44,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:44,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:44,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:44,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:44,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673939431] [2024-11-19 14:03:44,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673939431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:44,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:44,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:44,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032107292] [2024-11-19 14:03:44,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:44,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:44,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:44,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:44,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:44,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:44,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 181 transitions, 818 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2024-11-19 14:03:44,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:44,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:44,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:45,385 INFO L124 PetriNetUnfolderBase]: 5002/10042 cut-off events. [2024-11-19 14:03:45,386 INFO L125 PetriNetUnfolderBase]: For 1888/2160 co-relation queries the response was YES. [2024-11-19 14:03:45,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18464 conditions, 10042 events. 5002/10042 cut-off events. For 1888/2160 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 87659 event pairs, 3370 based on Foata normal form. 137/8288 useless extension candidates. Maximal degree in co-relation 18447. Up to 6705 conditions per place. [2024-11-19 14:03:45,430 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 126 selfloop transitions, 3 changer transitions 0/180 dead transitions. [2024-11-19 14:03:45,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 180 transitions, 1070 flow [2024-11-19 14:03:45,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:45,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:45,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-19 14:03:45,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-19 14:03:45,432 INFO L175 Difference]: Start difference. First operand has 142 places, 181 transitions, 818 flow. Second operand 4 states and 359 transitions. [2024-11-19 14:03:45,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 180 transitions, 1070 flow [2024-11-19 14:03:45,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 180 transitions, 976 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:45,438 INFO L231 Difference]: Finished difference. Result has 141 places, 180 transitions, 724 flow [2024-11-19 14:03:45,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=138, 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=724, PETRI_PLACES=141, PETRI_TRANSITIONS=180} [2024-11-19 14:03:45,439 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 11 predicate places. [2024-11-19 14:03:45,439 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 180 transitions, 724 flow [2024-11-19 14:03:45,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2024-11-19 14:03:45,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:45,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:45,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 14:03:45,439 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:45,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:45,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1363619158, now seen corresponding path program 1 times [2024-11-19 14:03:45,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:45,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919860657] [2024-11-19 14:03:45,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:45,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:45,557 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 14:03:45,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:45,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919860657] [2024-11-19 14:03:45,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919860657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:45,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:45,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:45,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944803320] [2024-11-19 14:03:45,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:45,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:45,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:45,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:45,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:45,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2024-11-19 14:03:45,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 180 transitions, 724 flow. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2024-11-19 14:03:45,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:45,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2024-11-19 14:03:45,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:46,206 INFO L124 PetriNetUnfolderBase]: 5001/10041 cut-off events. [2024-11-19 14:03:46,206 INFO L125 PetriNetUnfolderBase]: For 1843/2115 co-relation queries the response was YES. [2024-11-19 14:03:46,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18417 conditions, 10041 events. 5001/10041 cut-off events. For 1843/2115 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 87678 event pairs, 3370 based on Foata normal form. 137/8288 useless extension candidates. Maximal degree in co-relation 18400. Up to 6704 conditions per place. [2024-11-19 14:03:46,366 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 125 selfloop transitions, 3 changer transitions 0/179 dead transitions. [2024-11-19 14:03:46,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 179 transitions, 976 flow [2024-11-19 14:03:46,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:46,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:46,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2024-11-19 14:03:46,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2024-11-19 14:03:46,368 INFO L175 Difference]: Start difference. First operand has 141 places, 180 transitions, 724 flow. Second operand 4 states and 359 transitions. [2024-11-19 14:03:46,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 179 transitions, 976 flow [2024-11-19 14:03:46,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 179 transitions, 972 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:46,378 INFO L231 Difference]: Finished difference. Result has 142 places, 179 transitions, 722 flow [2024-11-19 14:03:46,378 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=722, PETRI_PLACES=142, PETRI_TRANSITIONS=179} [2024-11-19 14:03:46,378 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 12 predicate places. [2024-11-19 14:03:46,378 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 179 transitions, 722 flow [2024-11-19 14:03:46,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2024-11-19 14:03:46,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:46,379 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:46,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 14:03:46,379 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:46,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:46,379 INFO L85 PathProgramCache]: Analyzing trace with hash -409634365, now seen corresponding path program 1 times [2024-11-19 14:03:46,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:46,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015932972] [2024-11-19 14:03:46,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:46,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:47,214 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:47,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:47,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015932972] [2024-11-19 14:03:47,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015932972] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:47,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788871873] [2024-11-19 14:03:47,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:47,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:47,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:47,217 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) [2024-11-19 14:03:47,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 14:03:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:47,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-19 14:03:47,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:47,435 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 [2024-11-19 14:03:47,470 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 [2024-11-19 14:03:47,692 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 14:03:47,693 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 [2024-11-19 14:03:47,744 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 [2024-11-19 14:03:47,999 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-19 14:03:48,000 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 [2024-11-19 14:03:48,014 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:48,015 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:48,087 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_365 (Array Int Int))) (< (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_365) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 9223372039002259456)) is different from false [2024-11-19 14:03:48,233 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 14:03:48,233 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 [2024-11-19 14:03:48,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 14:03:48,244 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 [2024-11-19 14:03:48,250 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 [2024-11-19 14:03:48,321 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2024-11-19 14:03:48,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788871873] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:48,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:48,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-19 14:03:48,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527134317] [2024-11-19 14:03:48,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:48,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 14:03:48,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:48,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 14:03:48,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=382, Unknown=1, NotChecked=40, Total=506 [2024-11-19 14:03:48,451 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2024-11-19 14:03:48,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 179 transitions, 722 flow. Second operand has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2024-11-19 14:03:48,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:48,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2024-11-19 14:03:48,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:50,428 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* c_~id_3~0 4) c_~get_5~0.offset))) (and (forall ((v_ArrVal_365 (Array Int Int))) (< (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_365) c_~get_5~0.base) .cse0) 9223372039002259456)) (forall ((|v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_174| Int)) (or (forall ((v_ArrVal_365 (Array Int Int))) (< (select (select (store |c_#memory_int#1| |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_174| v_ArrVal_365) c_~get_5~0.base) .cse0) 9223372039002259456)) (not (= (select |c_#valid| |v_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base_174|) 0)))) (<= 0 c_~id_3~0))) is different from false [2024-11-19 14:03:56,010 INFO L124 PetriNetUnfolderBase]: 38905/59285 cut-off events. [2024-11-19 14:03:56,010 INFO L125 PetriNetUnfolderBase]: For 5837/6059 co-relation queries the response was YES. [2024-11-19 14:03:56,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120842 conditions, 59285 events. 38905/59285 cut-off events. For 5837/6059 co-relation queries the response was YES. Maximal size of possible extension queue 2541. Compared 467935 event pairs, 8741 based on Foata normal form. 222/52102 useless extension candidates. Maximal degree in co-relation 120825. Up to 12393 conditions per place. [2024-11-19 14:03:56,591 INFO L140 encePairwiseOnDemand]: 123/140 looper letters, 419 selfloop transitions, 71 changer transitions 0/527 dead transitions. [2024-11-19 14:03:56,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 527 transitions, 2909 flow [2024-11-19 14:03:56,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-19 14:03:56,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-19 14:03:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1533 transitions. [2024-11-19 14:03:56,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49772727272727274 [2024-11-19 14:03:56,596 INFO L175 Difference]: Start difference. First operand has 142 places, 179 transitions, 722 flow. Second operand 22 states and 1533 transitions. [2024-11-19 14:03:56,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 527 transitions, 2909 flow [2024-11-19 14:03:56,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 527 transitions, 2901 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:56,721 INFO L231 Difference]: Finished difference. Result has 166 places, 218 transitions, 1151 flow [2024-11-19 14:03:56,721 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1151, PETRI_PLACES=166, PETRI_TRANSITIONS=218} [2024-11-19 14:03:56,722 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 36 predicate places. [2024-11-19 14:03:56,722 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 218 transitions, 1151 flow [2024-11-19 14:03:56,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2024-11-19 14:03:56,723 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:56,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:56,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 14:03:56,923 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 [2024-11-19 14:03:56,923 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:03:56,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:56,924 INFO L85 PathProgramCache]: Analyzing trace with hash 186206391, now seen corresponding path program 1 times [2024-11-19 14:03:56,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:56,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904942590] [2024-11-19 14:03:56,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:56,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:57,835 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:57,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:57,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904942590] [2024-11-19 14:03:57,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904942590] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:03:57,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883022076] [2024-11-19 14:03:57,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:57,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:03:57,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:03:57,838 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) [2024-11-19 14:03:57,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 14:03:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:57,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 14:03:57,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:03:58,027 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 [2024-11-19 14:03:58,067 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 [2024-11-19 14:03:58,311 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 14:03:58,312 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 [2024-11-19 14:03:58,353 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 [2024-11-19 14:03:58,482 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 [2024-11-19 14:03:58,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 14:03:58,512 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:03:58,680 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_417 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_417) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 4294967296))) is different from false [2024-11-19 14:03:58,818 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 14:03:58,819 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 [2024-11-19 14:03:58,831 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 14:03:58,832 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 [2024-11-19 14:03:58,841 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 [2024-11-19 14:03:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2024-11-19 14:03:58,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883022076] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:03:58,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:03:58,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 22 [2024-11-19 14:03:58,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804002182] [2024-11-19 14:03:58,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:03:58,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 14:03:58,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:58,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 14:03:58,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=429, Unknown=1, NotChecked=42, Total=552 [2024-11-19 14:03:59,032 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2024-11-19 14:03:59,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 218 transitions, 1151 flow. Second operand has 24 states, 24 states have (on average 57.75) internal successors, (1386), 24 states have internal predecessors, (1386), 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) [2024-11-19 14:03:59,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:59,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2024-11-19 14:03:59,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:09,997 INFO L124 PetriNetUnfolderBase]: 50923/77539 cut-off events. [2024-11-19 14:04:09,997 INFO L125 PetriNetUnfolderBase]: For 18397/18661 co-relation queries the response was YES. [2024-11-19 14:04:10,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164377 conditions, 77539 events. 50923/77539 cut-off events. For 18397/18661 co-relation queries the response was YES. Maximal size of possible extension queue 3407. Compared 634570 event pairs, 12046 based on Foata normal form. 810/68893 useless extension candidates. Maximal degree in co-relation 164355. Up to 13978 conditions per place. [2024-11-19 14:04:10,703 INFO L140 encePairwiseOnDemand]: 123/140 looper letters, 545 selfloop transitions, 72 changer transitions 0/654 dead transitions. [2024-11-19 14:04:10,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 654 transitions, 3852 flow [2024-11-19 14:04:10,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-19 14:04:10,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-19 14:04:10,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1839 transitions. [2024-11-19 14:04:10,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5052197802197802 [2024-11-19 14:04:10,707 INFO L175 Difference]: Start difference. First operand has 166 places, 218 transitions, 1151 flow. Second operand 26 states and 1839 transitions. [2024-11-19 14:04:10,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 654 transitions, 3852 flow [2024-11-19 14:04:10,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 654 transitions, 3843 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:10,943 INFO L231 Difference]: Finished difference. Result has 190 places, 227 transitions, 1372 flow [2024-11-19 14:04:10,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1131, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1372, PETRI_PLACES=190, PETRI_TRANSITIONS=227} [2024-11-19 14:04:10,944 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 60 predicate places. [2024-11-19 14:04:10,944 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 227 transitions, 1372 flow [2024-11-19 14:04:10,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 57.75) internal successors, (1386), 24 states have internal predecessors, (1386), 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) [2024-11-19 14:04:10,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:10,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:10,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 14:04:11,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-19 14:04:11,146 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:04:11,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:11,146 INFO L85 PathProgramCache]: Analyzing trace with hash 623257027, now seen corresponding path program 1 times [2024-11-19 14:04:11,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:11,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597527865] [2024-11-19 14:04:11,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:11,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 14:04:11,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:11,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597527865] [2024-11-19 14:04:11,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597527865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:11,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:11,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:11,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381025328] [2024-11-19 14:04:11,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:11,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:11,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:11,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:11,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:11,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:04:11,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 227 transitions, 1372 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2024-11-19 14:04:11,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:11,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:04:11,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:19,270 INFO L124 PetriNetUnfolderBase]: 43995/78655 cut-off events. [2024-11-19 14:04:19,270 INFO L125 PetriNetUnfolderBase]: For 50241/51332 co-relation queries the response was YES. [2024-11-19 14:04:19,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167887 conditions, 78655 events. 43995/78655 cut-off events. For 50241/51332 co-relation queries the response was YES. Maximal size of possible extension queue 4019. Compared 807364 event pairs, 14375 based on Foata normal form. 2896/69388 useless extension candidates. Maximal degree in co-relation 167863. Up to 28371 conditions per place. [2024-11-19 14:04:20,051 INFO L140 encePairwiseOnDemand]: 132/140 looper letters, 251 selfloop transitions, 5 changer transitions 0/308 dead transitions. [2024-11-19 14:04:20,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 308 transitions, 2314 flow [2024-11-19 14:04:20,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:20,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:20,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 404 transitions. [2024-11-19 14:04:20,052 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7214285714285714 [2024-11-19 14:04:20,052 INFO L175 Difference]: Start difference. First operand has 190 places, 227 transitions, 1372 flow. Second operand 4 states and 404 transitions. [2024-11-19 14:04:20,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 308 transitions, 2314 flow [2024-11-19 14:04:20,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 308 transitions, 2173 flow, removed 3 selfloop flow, removed 16 redundant places. [2024-11-19 14:04:20,218 INFO L231 Difference]: Finished difference. Result has 179 places, 229 transitions, 1307 flow [2024-11-19 14:04:20,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1271, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1307, PETRI_PLACES=179, PETRI_TRANSITIONS=229} [2024-11-19 14:04:20,219 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 49 predicate places. [2024-11-19 14:04:20,219 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 229 transitions, 1307 flow [2024-11-19 14:04:20,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2024-11-19 14:04:20,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:20,219 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:20,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 14:04:20,220 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:04:20,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:20,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1477432422, now seen corresponding path program 1 times [2024-11-19 14:04:20,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:20,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357643946] [2024-11-19 14:04:20,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:20,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 14:04:20,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:20,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357643946] [2024-11-19 14:04:20,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357643946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:20,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:20,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:20,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318832447] [2024-11-19 14:04:20,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:20,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:20,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:20,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:20,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:20,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2024-11-19 14:04:20,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 229 transitions, 1307 flow. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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) [2024-11-19 14:04:20,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:20,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2024-11-19 14:04:20,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:27,462 INFO L124 PetriNetUnfolderBase]: 37994/70097 cut-off events. [2024-11-19 14:04:27,462 INFO L125 PetriNetUnfolderBase]: For 49035/51043 co-relation queries the response was YES. [2024-11-19 14:04:27,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153829 conditions, 70097 events. 37994/70097 cut-off events. For 49035/51043 co-relation queries the response was YES. Maximal size of possible extension queue 3566. Compared 731823 event pairs, 14349 based on Foata normal form. 1941/63540 useless extension candidates. Maximal degree in co-relation 153805. Up to 27101 conditions per place. [2024-11-19 14:04:28,156 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 216 selfloop transitions, 14 changer transitions 0/276 dead transitions. [2024-11-19 14:04:28,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 276 transitions, 1879 flow [2024-11-19 14:04:28,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:04:28,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:04:28,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 403 transitions. [2024-11-19 14:04:28,158 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7196428571428571 [2024-11-19 14:04:28,158 INFO L175 Difference]: Start difference. First operand has 179 places, 229 transitions, 1307 flow. Second operand 4 states and 403 transitions. [2024-11-19 14:04:28,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 276 transitions, 1879 flow [2024-11-19 14:04:28,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 276 transitions, 1870 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:04:28,529 INFO L231 Difference]: Finished difference. Result has 181 places, 225 transitions, 1294 flow [2024-11-19 14:04:28,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1266, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1294, PETRI_PLACES=181, PETRI_TRANSITIONS=225} [2024-11-19 14:04:28,530 INFO L277 CegarLoopForPetriNet]: 130 programPoint places, 51 predicate places. [2024-11-19 14:04:28,530 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 225 transitions, 1294 flow [2024-11-19 14:04:28,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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) [2024-11-19 14:04:28,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:28,531 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:28,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-19 14:04:28,531 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:04:28,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:28,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1477431397, now seen corresponding path program 1 times [2024-11-19 14:04:28,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:28,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822653220] [2024-11-19 14:04:28,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:28,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:29,568 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:04:29,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:29,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822653220] [2024-11-19 14:04:29,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822653220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:04:29,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751087499] [2024-11-19 14:04:29,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:29,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:04:29,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:29,571 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 14:04:29,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 14:04:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:29,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-19 14:04:29,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:04:29,753 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 [2024-11-19 14:04:29,793 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 [2024-11-19 14:04:29,978 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-19 14:04:29,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-19 14:04:30,031 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 22 treesize of output 17 [2024-11-19 14:04:30,098 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-19 14:04:30,099 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 [2024-11-19 14:04:30,138 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 22 treesize of output 17 [2024-11-19 14:04:30,410 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-19 14:04:30,411 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 25 treesize of output 12 [2024-11-19 14:04:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:04:30,458 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:04:30,733 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 14:04:30,734 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 [2024-11-19 14:04:30,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 14:04:30,744 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 [2024-11-19 14:04:30,750 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 [2024-11-19 14:04:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 14:04:30,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751087499] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:04:30,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:04:30,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2024-11-19 14:04:30,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075666818] [2024-11-19 14:04:30,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:04:30,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 14:04:30,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:30,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 14:04:30,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=629, Unknown=8, NotChecked=0, Total=756