./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:37:01,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:37:01,057 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 20:37:01,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:37:01,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:37:01,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:37:01,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:37:01,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:37:01,084 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:37:01,085 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:37:01,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:37:01,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:37:01,086 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:37:01,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:37:01,087 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:37:01,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:37:01,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:37:01,087 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 20:37:01,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:37:01,088 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 20:37:01,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:37:01,091 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:37:01,091 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:37:01,091 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:37:01,092 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:37:01,092 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:37:01,092 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:37:01,092 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 20:37:01,092 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:37:01,093 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:37:01,093 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:37:01,093 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:37:01,093 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:37:01,093 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:37:01,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:37:01,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:37:01,095 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:37:01,095 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:37:01,095 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:37:01,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 20:37:01,095 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:37:01,095 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:37:01,096 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:37:01,096 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:37:01,096 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2024-11-12 20:37:01,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:37:01,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:37:01,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:37:01,342 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:37:01,342 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:37:01,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2024-11-12 20:37:02,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:37:02,693 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:37:02,693 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2024-11-12 20:37:02,705 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c94b64089/76c000aecd694b0fb2dd7fec21af5009/FLAG82adfa545 [2024-11-12 20:37:03,076 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c94b64089/76c000aecd694b0fb2dd7fec21af5009 [2024-11-12 20:37:03,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:37:03,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:37:03,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:37:03,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:37:03,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:37:03,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5e9e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03, skipping insertion in model container [2024-11-12 20:37:03,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,117 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:37:03,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:37:03,404 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:37:03,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:37:03,489 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:37:03,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03 WrapperNode [2024-11-12 20:37:03,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:37:03,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:37:03,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:37:03,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:37:03,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,541 INFO L138 Inliner]: procedures = 162, calls = 77, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 115 [2024-11-12 20:37:03,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:37:03,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:37:03,546 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:37:03,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:37:03,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,576 INFO L175 MemorySlicer]: Split 66 memory accesses to 2 slices as follows [16, 50]. 76 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [10, 50]. The 3 writes are split as follows [3, 0]. [2024-11-12 20:37:03,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,596 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,598 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:37:03,601 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:37:03,601 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:37:03,602 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:37:03,602 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03" (1/1) ... [2024-11-12 20:37:03,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:37:03,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:37:03,630 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) [2024-11-12 20:37:03,631 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 [2024-11-12 20:37:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 20:37:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 20:37:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 20:37:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 20:37:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 20:37:03,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:37:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 20:37:03,661 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 20:37:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 20:37:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 20:37:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 20:37:03,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:37:03,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:37:03,662 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 20:37:03,786 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:37:03,788 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:37:03,966 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 20:37:03,967 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:37:04,161 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:37:04,161 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 20:37:04,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:37:04 BoogieIcfgContainer [2024-11-12 20:37:04,162 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:37:04,163 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:37:04,163 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:37:04,166 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:37:04,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:37:03" (1/3) ... [2024-11-12 20:37:04,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f38b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:37:04, skipping insertion in model container [2024-11-12 20:37:04,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:37:03" (2/3) ... [2024-11-12 20:37:04,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f38b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:37:04, skipping insertion in model container [2024-11-12 20:37:04,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:37:04" (3/3) ... [2024-11-12 20:37:04,169 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2024-11-12 20:37:04,181 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:37:04,181 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-12 20:37:04,181 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 20:37:04,209 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 20:37:04,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 35 transitions, 74 flow [2024-11-12 20:37:04,257 INFO L124 PetriNetUnfolderBase]: 1/34 cut-off events. [2024-11-12 20:37:04,257 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:37:04,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 34 events. 1/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 7. Up to 2 conditions per place. [2024-11-12 20:37:04,259 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 35 transitions, 74 flow [2024-11-12 20:37:04,261 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 34 transitions, 71 flow [2024-11-12 20:37:04,267 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:37:04,271 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;@70e557d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:37:04,272 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-12 20:37:04,276 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:37:04,276 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-12 20:37:04,276 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:37:04,276 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:04,276 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-12 20:37:04,277 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:04,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:04,281 INFO L85 PathProgramCache]: Analyzing trace with hash 322762, now seen corresponding path program 1 times [2024-11-12 20:37:04,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:04,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819327371] [2024-11-12 20:37:04,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:04,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:04,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:04,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819327371] [2024-11-12 20:37:04,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819327371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:04,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:04,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:37:04,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721110861] [2024-11-12 20:37:04,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:04,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:37:04,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:04,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:37:04,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:37:04,646 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-12 20:37:04,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-12 20:37:04,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:04,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-12 20:37:04,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:04,748 INFO L124 PetriNetUnfolderBase]: 51/171 cut-off events. [2024-11-12 20:37:04,749 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:37:04,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 171 events. 51/171 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 624 event pairs, 50 based on Foata normal form. 1/155 useless extension candidates. Maximal degree in co-relation 275. Up to 123 conditions per place. [2024-11-12 20:37:04,751 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 21 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2024-11-12 20:37:04,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 36 transitions, 123 flow [2024-11-12 20:37:04,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:37:04,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:37:04,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2024-11-12 20:37:04,761 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5642857142857143 [2024-11-12 20:37:04,763 INFO L175 Difference]: Start difference. First operand has 37 places, 34 transitions, 71 flow. Second operand 4 states and 79 transitions. [2024-11-12 20:37:04,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 36 transitions, 123 flow [2024-11-12 20:37:04,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 36 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:37:04,767 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 94 flow [2024-11-12 20:37:04,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2024-11-12 20:37:04,773 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 4 predicate places. [2024-11-12 20:37:04,773 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 94 flow [2024-11-12 20:37:04,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-12 20:37:04,773 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:04,773 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-12 20:37:04,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 20:37:04,774 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:04,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:04,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1025778419, now seen corresponding path program 1 times [2024-11-12 20:37:04,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:04,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496327996] [2024-11-12 20:37:04,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:04,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:04,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:04,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:04,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496327996] [2024-11-12 20:37:04,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496327996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:37:04,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786831405] [2024-11-12 20:37:04,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:04,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:04,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:37:04,859 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) [2024-11-12 20:37:04,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 20:37:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:04,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 20:37:04,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:37:04,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:04,984 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 20:37:04,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786831405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:04,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:37:04,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-12 20:37:04,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205034654] [2024-11-12 20:37:04,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:04,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:37:04,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:04,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:37:04,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 20:37:04,995 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-12 20:37:04,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2024-11-12 20:37:04,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:04,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-12 20:37:04,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:05,092 INFO L124 PetriNetUnfolderBase]: 51/170 cut-off events. [2024-11-12 20:37:05,093 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 20:37:05,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 170 events. 51/170 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 620 event pairs, 50 based on Foata normal form. 1/154 useless extension candidates. Maximal degree in co-relation 292. Up to 118 conditions per place. [2024-11-12 20:37:05,095 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 17 selfloop transitions, 6 changer transitions 0/35 dead transitions. [2024-11-12 20:37:05,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 35 transitions, 136 flow [2024-11-12 20:37:05,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:37:05,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:37:05,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2024-11-12 20:37:05,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4857142857142857 [2024-11-12 20:37:05,097 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 94 flow. Second operand 6 states and 102 transitions. [2024-11-12 20:37:05,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 35 transitions, 136 flow [2024-11-12 20:37:05,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:37:05,098 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 100 flow [2024-11-12 20:37:05,098 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2024-11-12 20:37:05,099 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2024-11-12 20:37:05,100 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 100 flow [2024-11-12 20:37:05,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2024-11-12 20:37:05,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:05,102 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-12 20:37:05,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 20:37:05,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:05,307 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:05,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:05,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1734360229, now seen corresponding path program 1 times [2024-11-12 20:37:05,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:05,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047713131] [2024-11-12 20:37:05,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:05,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:05,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 20:37:05,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:05,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047713131] [2024-11-12 20:37:05,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047713131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:05,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:05,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:37:05,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66045396] [2024-11-12 20:37:05,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:05,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:37:05,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:05,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:37:05,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:37:05,346 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-12 20:37:05,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-12 20:37:05,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:05,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-12 20:37:05,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:05,395 INFO L124 PetriNetUnfolderBase]: 51/169 cut-off events. [2024-11-12 20:37:05,395 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-12 20:37:05,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 169 events. 51/169 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 621 event pairs, 50 based on Foata normal form. 1/154 useless extension candidates. Maximal degree in co-relation 288. Up to 121 conditions per place. [2024-11-12 20:37:05,396 INFO L140 encePairwiseOnDemand]: 32/35 looper letters, 18 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2024-11-12 20:37:05,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 34 transitions, 140 flow [2024-11-12 20:37:05,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:37:05,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:37:05,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-11-12 20:37:05,398 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-12 20:37:05,398 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 100 flow. Second operand 3 states and 60 transitions. [2024-11-12 20:37:05,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 34 transitions, 140 flow [2024-11-12 20:37:05,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 118 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-12 20:37:05,399 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 82 flow [2024-11-12 20:37:05,399 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2024-11-12 20:37:05,400 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2024-11-12 20:37:05,400 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 82 flow [2024-11-12 20:37:05,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2024-11-12 20:37:05,401 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:05,401 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:05,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 20:37:05,401 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:05,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:05,402 INFO L85 PathProgramCache]: Analyzing trace with hash -90320031, now seen corresponding path program 1 times [2024-11-12 20:37:05,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:05,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184817668] [2024-11-12 20:37:05,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:05,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:05,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:05,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:05,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184817668] [2024-11-12 20:37:05,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184817668] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:37:05,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7099033] [2024-11-12 20:37:05,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:05,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:05,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:37:05,480 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) [2024-11-12 20:37:05,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 20:37:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:05,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 20:37:05,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:37:05,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:05,588 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:37:05,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:05,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7099033] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:37:05,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:37:05,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-12 20:37:05,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158285412] [2024-11-12 20:37:05,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:37:05,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 20:37:05,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:05,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 20:37:05,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-12 20:37:05,631 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-12 20:37:05,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 82 flow. Second operand has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 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) [2024-11-12 20:37:05,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:05,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-12 20:37:05,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:05,710 INFO L124 PetriNetUnfolderBase]: 51/173 cut-off events. [2024-11-12 20:37:05,710 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-12 20:37:05,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 173 events. 51/173 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 618 event pairs, 50 based on Foata normal form. 2/160 useless extension candidates. Maximal degree in co-relation 281. Up to 119 conditions per place. [2024-11-12 20:37:05,711 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 18 selfloop transitions, 7 changer transitions 0/37 dead transitions. [2024-11-12 20:37:05,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 147 flow [2024-11-12 20:37:05,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 20:37:05,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 20:37:05,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 118 transitions. [2024-11-12 20:37:05,713 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4816326530612245 [2024-11-12 20:37:05,713 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 82 flow. Second operand 7 states and 118 transitions. [2024-11-12 20:37:05,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 147 flow [2024-11-12 20:37:05,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 133 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:37:05,714 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 108 flow [2024-11-12 20:37:05,714 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=108, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2024-11-12 20:37:05,715 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 8 predicate places. [2024-11-12 20:37:05,715 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 108 flow [2024-11-12 20:37:05,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.4) internal successors, (144), 10 states have internal predecessors, (144), 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) [2024-11-12 20:37:05,718 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:05,718 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:05,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 20:37:05,918 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,SelfDestructingSolverStorable3 [2024-11-12 20:37:05,921 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:05,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:05,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1742365697, now seen corresponding path program 2 times [2024-11-12 20:37:05,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:05,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713071456] [2024-11-12 20:37:05,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:05,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:05,991 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 20:37:05,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:05,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713071456] [2024-11-12 20:37:05,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713071456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:05,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:05,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:37:05,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324307117] [2024-11-12 20:37:05,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:05,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:37:05,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:05,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:37:05,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:37:06,000 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-12 20:37:06,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2024-11-12 20:37:06,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:06,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-12 20:37:06,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:06,069 INFO L124 PetriNetUnfolderBase]: 57/169 cut-off events. [2024-11-12 20:37:06,070 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-12 20:37:06,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 169 events. 57/169 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 565 event pairs, 19 based on Foata normal form. 11/173 useless extension candidates. Maximal degree in co-relation 294. Up to 91 conditions per place. [2024-11-12 20:37:06,071 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 39 selfloop transitions, 4 changer transitions 6/59 dead transitions. [2024-11-12 20:37:06,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 59 transitions, 250 flow [2024-11-12 20:37:06,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:37:06,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:37:06,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 113 transitions. [2024-11-12 20:37:06,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6457142857142857 [2024-11-12 20:37:06,075 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 108 flow. Second operand 5 states and 113 transitions. [2024-11-12 20:37:06,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 59 transitions, 250 flow [2024-11-12 20:37:06,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 59 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:37:06,077 INFO L231 Difference]: Finished difference. Result has 50 places, 38 transitions, 129 flow [2024-11-12 20:37:06,078 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=129, PETRI_PLACES=50, PETRI_TRANSITIONS=38} [2024-11-12 20:37:06,078 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 13 predicate places. [2024-11-12 20:37:06,080 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 38 transitions, 129 flow [2024-11-12 20:37:06,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2024-11-12 20:37:06,080 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:06,080 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:06,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 20:37:06,080 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:06,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:06,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1741975514, now seen corresponding path program 1 times [2024-11-12 20:37:06,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:06,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977534458] [2024-11-12 20:37:06,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:06,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:06,128 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 20:37:06,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:06,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977534458] [2024-11-12 20:37:06,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977534458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:06,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:06,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:37:06,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132370218] [2024-11-12 20:37:06,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:06,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:37:06,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:06,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:37:06,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:37:06,132 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-12 20:37:06,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-12 20:37:06,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:06,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-12 20:37:06,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:06,189 INFO L124 PetriNetUnfolderBase]: 41/152 cut-off events. [2024-11-12 20:37:06,189 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-12 20:37:06,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 152 events. 41/152 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 526 event pairs, 12 based on Foata normal form. 6/152 useless extension candidates. Maximal degree in co-relation 308. Up to 59 conditions per place. [2024-11-12 20:37:06,191 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 33 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-11-12 20:37:06,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 46 transitions, 231 flow [2024-11-12 20:37:06,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:37:06,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:37:06,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-11-12 20:37:06,191 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-12 20:37:06,192 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 129 flow. Second operand 4 states and 84 transitions. [2024-11-12 20:37:06,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 46 transitions, 231 flow [2024-11-12 20:37:06,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 46 transitions, 222 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-12 20:37:06,193 INFO L231 Difference]: Finished difference. Result has 48 places, 36 transitions, 124 flow [2024-11-12 20:37:06,193 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2024-11-12 20:37:06,194 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 11 predicate places. [2024-11-12 20:37:06,194 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 124 flow [2024-11-12 20:37:06,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-12 20:37:06,194 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:06,194 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:06,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 20:37:06,195 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:06,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:06,195 INFO L85 PathProgramCache]: Analyzing trace with hash 969265656, now seen corresponding path program 1 times [2024-11-12 20:37:06,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:06,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462176338] [2024-11-12 20:37:06,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:06,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:06,316 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:06,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:06,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462176338] [2024-11-12 20:37:06,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462176338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:37:06,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549543719] [2024-11-12 20:37:06,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:06,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:06,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:37:06,319 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) [2024-11-12 20:37:06,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 20:37:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:06,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 20:37:06,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:37:06,430 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:06,430 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:37:06,509 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:06,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549543719] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:37:06,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:37:06,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-12 20:37:06,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995660401] [2024-11-12 20:37:06,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:37:06,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-12 20:37:06,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:06,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-12 20:37:06,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-12 20:37:06,524 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-12 20:37:06,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 124 flow. Second operand has 18 states, 18 states have (on average 14.5) internal successors, (261), 18 states have internal predecessors, (261), 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) [2024-11-12 20:37:06,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:06,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-12 20:37:06,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:06,665 INFO L124 PetriNetUnfolderBase]: 41/161 cut-off events. [2024-11-12 20:37:06,666 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-11-12 20:37:06,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 161 events. 41/161 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 513 event pairs, 40 based on Foata normal form. 4/157 useless extension candidates. Maximal degree in co-relation 287. Up to 100 conditions per place. [2024-11-12 20:37:06,668 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 19 selfloop transitions, 15 changer transitions 0/44 dead transitions. [2024-11-12 20:37:06,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 44 transitions, 240 flow [2024-11-12 20:37:06,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-12 20:37:06,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-12 20:37:06,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 232 transitions. [2024-11-12 20:37:06,671 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4419047619047619 [2024-11-12 20:37:06,671 INFO L175 Difference]: Start difference. First operand has 48 places, 36 transitions, 124 flow. Second operand 15 states and 232 transitions. [2024-11-12 20:37:06,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 44 transitions, 240 flow [2024-11-12 20:37:06,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 44 transitions, 234 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 20:37:06,674 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 215 flow [2024-11-12 20:37:06,674 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=215, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2024-11-12 20:37:06,675 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 26 predicate places. [2024-11-12 20:37:06,676 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 215 flow [2024-11-12 20:37:06,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.5) internal successors, (261), 18 states have internal predecessors, (261), 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) [2024-11-12 20:37:06,676 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:06,676 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:06,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 20:37:06,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:06,881 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:06,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:06,882 INFO L85 PathProgramCache]: Analyzing trace with hash -364635336, now seen corresponding path program 2 times [2024-11-12 20:37:06,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:06,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356485441] [2024-11-12 20:37:06,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:06,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:07,108 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:07,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:07,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356485441] [2024-11-12 20:37:07,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356485441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:37:07,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252103547] [2024-11-12 20:37:07,109 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 20:37:07,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:07,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:37:07,110 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) [2024-11-12 20:37:07,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 20:37:07,174 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-12 20:37:07,174 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 20:37:07,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 20:37:07,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:37:07,313 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 23 treesize of output 11 [2024-11-12 20:37:07,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-12 20:37:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-12 20:37:07,344 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 20:37:07,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252103547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:07,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 20:37:07,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [16] total 18 [2024-11-12 20:37:07,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570070880] [2024-11-12 20:37:07,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:07,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:37:07,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:07,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:37:07,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-12 20:37:07,352 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-12 20:37:07,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 215 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-12 20:37:07,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:07,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-12 20:37:07,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:07,431 INFO L124 PetriNetUnfolderBase]: 50/167 cut-off events. [2024-11-12 20:37:07,431 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2024-11-12 20:37:07,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 167 events. 50/167 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 523 event pairs, 21 based on Foata normal form. 6/172 useless extension candidates. Maximal degree in co-relation 309. Up to 64 conditions per place. [2024-11-12 20:37:07,433 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 44 selfloop transitions, 6 changer transitions 0/58 dead transitions. [2024-11-12 20:37:07,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 58 transitions, 349 flow [2024-11-12 20:37:07,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:37:07,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:37:07,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 103 transitions. [2024-11-12 20:37:07,434 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5885714285714285 [2024-11-12 20:37:07,434 INFO L175 Difference]: Start difference. First operand has 63 places, 44 transitions, 215 flow. Second operand 5 states and 103 transitions. [2024-11-12 20:37:07,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 58 transitions, 349 flow [2024-11-12 20:37:07,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 58 transitions, 339 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:07,439 INFO L231 Difference]: Finished difference. Result has 67 places, 47 transitions, 245 flow [2024-11-12 20:37:07,439 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=245, PETRI_PLACES=67, PETRI_TRANSITIONS=47} [2024-11-12 20:37:07,439 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 30 predicate places. [2024-11-12 20:37:07,440 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 47 transitions, 245 flow [2024-11-12 20:37:07,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-12 20:37:07,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:07,440 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:07,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 20:37:07,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:07,645 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:07,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:07,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1581206796, now seen corresponding path program 1 times [2024-11-12 20:37:07,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:07,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647139716] [2024-11-12 20:37:07,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:07,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:07,883 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:07,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:07,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647139716] [2024-11-12 20:37:07,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647139716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:37:07,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503040668] [2024-11-12 20:37:07,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:07,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:07,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:37:07,886 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) [2024-11-12 20:37:07,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 20:37:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:07,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-12 20:37:07,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:37:07,996 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:07,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:37:08,143 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:37:08,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503040668] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:37:08,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:37:08,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-12 20:37:08,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473441291] [2024-11-12 20:37:08,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:37:08,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-12 20:37:08,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:08,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-12 20:37:08,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-12 20:37:08,161 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-12 20:37:08,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 47 transitions, 245 flow. Second operand has 23 states, 23 states have (on average 14.434782608695652) internal successors, (332), 23 states have internal predecessors, (332), 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) [2024-11-12 20:37:08,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:08,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-12 20:37:08,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:08,309 INFO L124 PetriNetUnfolderBase]: 40/169 cut-off events. [2024-11-12 20:37:08,309 INFO L125 PetriNetUnfolderBase]: For 188/188 co-relation queries the response was YES. [2024-11-12 20:37:08,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 169 events. 40/169 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 508 event pairs, 39 based on Foata normal form. 3/170 useless extension candidates. Maximal degree in co-relation 418. Up to 102 conditions per place. [2024-11-12 20:37:08,310 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 21 selfloop transitions, 21 changer transitions 0/53 dead transitions. [2024-11-12 20:37:08,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 53 transitions, 383 flow [2024-11-12 20:37:08,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 20:37:08,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-12 20:37:08,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 315 transitions. [2024-11-12 20:37:08,311 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-11-12 20:37:08,311 INFO L175 Difference]: Start difference. First operand has 67 places, 47 transitions, 245 flow. Second operand 21 states and 315 transitions. [2024-11-12 20:37:08,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 53 transitions, 383 flow [2024-11-12 20:37:08,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 53 transitions, 383 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 20:37:08,314 INFO L231 Difference]: Finished difference. Result has 90 places, 53 transitions, 356 flow [2024-11-12 20:37:08,314 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=356, PETRI_PLACES=90, PETRI_TRANSITIONS=53} [2024-11-12 20:37:08,314 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 53 predicate places. [2024-11-12 20:37:08,314 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 53 transitions, 356 flow [2024-11-12 20:37:08,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 14.434782608695652) internal successors, (332), 23 states have internal predecessors, (332), 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) [2024-11-12 20:37:08,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:08,315 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:08,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-12 20:37:08,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:37:08,516 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:08,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:08,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1179058133, now seen corresponding path program 2 times [2024-11-12 20:37:08,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:08,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290499533] [2024-11-12 20:37:08,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:08,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:08,646 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:08,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:08,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290499533] [2024-11-12 20:37:08,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290499533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:08,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:08,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:37:08,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847187413] [2024-11-12 20:37:08,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:08,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:37:08,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:08,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:37:08,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:37:08,651 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2024-11-12 20:37:08,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 53 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-12 20:37:08,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:08,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2024-11-12 20:37:08,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:08,725 INFO L124 PetriNetUnfolderBase]: 44/167 cut-off events. [2024-11-12 20:37:08,725 INFO L125 PetriNetUnfolderBase]: For 250/250 co-relation queries the response was YES. [2024-11-12 20:37:08,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 167 events. 44/167 cut-off events. For 250/250 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 475 event pairs, 20 based on Foata normal form. 6/172 useless extension candidates. Maximal degree in co-relation 437. Up to 69 conditions per place. [2024-11-12 20:37:08,726 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 47 selfloop transitions, 4 changer transitions 4/63 dead transitions. [2024-11-12 20:37:08,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 63 transitions, 488 flow [2024-11-12 20:37:08,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:37:08,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:37:08,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 103 transitions. [2024-11-12 20:37:08,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5885714285714285 [2024-11-12 20:37:08,727 INFO L175 Difference]: Start difference. First operand has 90 places, 53 transitions, 356 flow. Second operand 5 states and 103 transitions. [2024-11-12 20:37:08,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 63 transitions, 488 flow [2024-11-12 20:37:08,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 63 transitions, 442 flow, removed 1 selfloop flow, removed 14 redundant places. [2024-11-12 20:37:08,730 INFO L231 Difference]: Finished difference. Result has 80 places, 51 transitions, 306 flow [2024-11-12 20:37:08,730 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=306, PETRI_PLACES=80, PETRI_TRANSITIONS=51} [2024-11-12 20:37:08,731 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 43 predicate places. [2024-11-12 20:37:08,732 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 51 transitions, 306 flow [2024-11-12 20:37:08,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-12 20:37:08,732 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:08,733 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:08,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 20:37:08,733 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:08,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:08,733 INFO L85 PathProgramCache]: Analyzing trace with hash 83594201, now seen corresponding path program 1 times [2024-11-12 20:37:08,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:08,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825896986] [2024-11-12 20:37:08,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:08,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:08,893 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:08,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:08,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825896986] [2024-11-12 20:37:08,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825896986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:08,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:08,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:37:08,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960592176] [2024-11-12 20:37:08,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:08,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:37:08,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:08,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:37:08,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:37:08,906 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-12 20:37:08,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 51 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-11-12 20:37:08,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:08,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-12 20:37:08,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:09,003 INFO L124 PetriNetUnfolderBase]: 46/165 cut-off events. [2024-11-12 20:37:09,003 INFO L125 PetriNetUnfolderBase]: For 235/236 co-relation queries the response was YES. [2024-11-12 20:37:09,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 165 events. 46/165 cut-off events. For 235/236 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 452 event pairs, 13 based on Foata normal form. 4/169 useless extension candidates. Maximal degree in co-relation 444. Up to 46 conditions per place. [2024-11-12 20:37:09,004 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 54 selfloop transitions, 5 changer transitions 1/66 dead transitions. [2024-11-12 20:37:09,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 66 transitions, 458 flow [2024-11-12 20:37:09,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:37:09,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:37:09,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions. [2024-11-12 20:37:09,005 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5142857142857142 [2024-11-12 20:37:09,005 INFO L175 Difference]: Start difference. First operand has 80 places, 51 transitions, 306 flow. Second operand 6 states and 108 transitions. [2024-11-12 20:37:09,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 66 transitions, 458 flow [2024-11-12 20:37:09,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 66 transitions, 443 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 20:37:09,008 INFO L231 Difference]: Finished difference. Result has 78 places, 50 transitions, 298 flow [2024-11-12 20:37:09,008 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=298, PETRI_PLACES=78, PETRI_TRANSITIONS=50} [2024-11-12 20:37:09,008 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 41 predicate places. [2024-11-12 20:37:09,008 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 50 transitions, 298 flow [2024-11-12 20:37:09,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-11-12 20:37:09,009 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:09,009 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:09,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 20:37:09,009 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:09,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:09,009 INFO L85 PathProgramCache]: Analyzing trace with hash -488053322, now seen corresponding path program 1 times [2024-11-12 20:37:09,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:09,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195676675] [2024-11-12 20:37:09,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:09,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:09,116 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:09,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:09,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195676675] [2024-11-12 20:37:09,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195676675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:09,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:09,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:37:09,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373511634] [2024-11-12 20:37:09,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:09,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:37:09,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:09,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:37:09,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:37:09,124 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2024-11-12 20:37:09,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 50 transitions, 298 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-12 20:37:09,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:09,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2024-11-12 20:37:09,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:09,205 INFO L124 PetriNetUnfolderBase]: 48/167 cut-off events. [2024-11-12 20:37:09,205 INFO L125 PetriNetUnfolderBase]: For 235/235 co-relation queries the response was YES. [2024-11-12 20:37:09,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 167 events. 48/167 cut-off events. For 235/235 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 440 event pairs, 27 based on Foata normal form. 3/169 useless extension candidates. Maximal degree in co-relation 343. Up to 91 conditions per place. [2024-11-12 20:37:09,206 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 48 selfloop transitions, 7 changer transitions 3/63 dead transitions. [2024-11-12 20:37:09,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 63 transitions, 447 flow [2024-11-12 20:37:09,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:37:09,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:37:09,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2024-11-12 20:37:09,208 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-12 20:37:09,208 INFO L175 Difference]: Start difference. First operand has 78 places, 50 transitions, 298 flow. Second operand 6 states and 98 transitions. [2024-11-12 20:37:09,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 63 transitions, 447 flow [2024-11-12 20:37:09,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 63 transitions, 431 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:09,210 INFO L231 Difference]: Finished difference. Result has 78 places, 49 transitions, 295 flow [2024-11-12 20:37:09,210 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=295, PETRI_PLACES=78, PETRI_TRANSITIONS=49} [2024-11-12 20:37:09,211 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 41 predicate places. [2024-11-12 20:37:09,211 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 49 transitions, 295 flow [2024-11-12 20:37:09,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-12 20:37:09,211 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:09,211 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:09,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 20:37:09,211 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:09,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:09,213 INFO L85 PathProgramCache]: Analyzing trace with hash -44537721, now seen corresponding path program 1 times [2024-11-12 20:37:09,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:09,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196119582] [2024-11-12 20:37:09,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:09,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:09,382 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:09,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:09,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196119582] [2024-11-12 20:37:09,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196119582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:09,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:09,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:37:09,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66315565] [2024-11-12 20:37:09,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:09,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:37:09,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:09,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:37:09,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:37:09,392 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-12 20:37:09,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 49 transitions, 295 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-11-12 20:37:09,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:09,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-12 20:37:09,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:09,466 INFO L124 PetriNetUnfolderBase]: 41/152 cut-off events. [2024-11-12 20:37:09,467 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2024-11-12 20:37:09,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 152 events. 41/152 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 401 event pairs, 10 based on Foata normal form. 3/155 useless extension candidates. Maximal degree in co-relation 303. Up to 43 conditions per place. [2024-11-12 20:37:09,468 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 36 selfloop transitions, 3 changer transitions 19/64 dead transitions. [2024-11-12 20:37:09,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 64 transitions, 439 flow [2024-11-12 20:37:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 20:37:09,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 20:37:09,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 117 transitions. [2024-11-12 20:37:09,469 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4775510204081633 [2024-11-12 20:37:09,469 INFO L175 Difference]: Start difference. First operand has 78 places, 49 transitions, 295 flow. Second operand 7 states and 117 transitions. [2024-11-12 20:37:09,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 64 transitions, 439 flow [2024-11-12 20:37:09,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 64 transitions, 430 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 20:37:09,471 INFO L231 Difference]: Finished difference. Result has 77 places, 43 transitions, 265 flow [2024-11-12 20:37:09,472 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=265, PETRI_PLACES=77, PETRI_TRANSITIONS=43} [2024-11-12 20:37:09,473 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 40 predicate places. [2024-11-12 20:37:09,473 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 43 transitions, 265 flow [2024-11-12 20:37:09,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-11-12 20:37:09,473 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:37:09,473 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:09,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 20:37:09,474 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:37:09,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:37:09,474 INFO L85 PathProgramCache]: Analyzing trace with hash 2050216541, now seen corresponding path program 1 times [2024-11-12 20:37:09,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:37:09,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885346129] [2024-11-12 20:37:09,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:37:09,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:37:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:37:09,658 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-12 20:37:09,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:37:09,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885346129] [2024-11-12 20:37:09,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885346129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:37:09,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:37:09,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:37:09,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941701776] [2024-11-12 20:37:09,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:37:09,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:37:09,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:37:09,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:37:09,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:37:09,685 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 35 [2024-11-12 20:37:09,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 43 transitions, 265 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-11-12 20:37:09,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:37:09,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 35 [2024-11-12 20:37:09,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:37:09,739 INFO L124 PetriNetUnfolderBase]: 13/80 cut-off events. [2024-11-12 20:37:09,739 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2024-11-12 20:37:09,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 80 events. 13/80 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 73 event pairs, 6 based on Foata normal form. 3/83 useless extension candidates. Maximal degree in co-relation 236. Up to 43 conditions per place. [2024-11-12 20:37:09,739 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2024-11-12 20:37:09,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 46 transitions, 349 flow [2024-11-12 20:37:09,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:37:09,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:37:09,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 88 transitions. [2024-11-12 20:37:09,740 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41904761904761906 [2024-11-12 20:37:09,740 INFO L175 Difference]: Start difference. First operand has 77 places, 43 transitions, 265 flow. Second operand 6 states and 88 transitions. [2024-11-12 20:37:09,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 46 transitions, 349 flow [2024-11-12 20:37:09,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 46 transitions, 337 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-12 20:37:09,741 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2024-11-12 20:37:09,741 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2024-11-12 20:37:09,742 INFO L279 CegarLoopForPetriNet]: 37 programPoint places, 29 predicate places. [2024-11-12 20:37:09,742 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2024-11-12 20:37:09,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-11-12 20:37:09,744 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 11 remaining) [2024-11-12 20:37:09,744 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2024-11-12 20:37:09,744 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2024-11-12 20:37:09,744 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2024-11-12 20:37:09,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2024-11-12 20:37:09,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2024-11-12 20:37:09,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2024-11-12 20:37:09,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2024-11-12 20:37:09,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2024-11-12 20:37:09,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2024-11-12 20:37:09,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2024-11-12 20:37:09,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 20:37:09,746 INFO L421 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:37:09,749 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 20:37:09,749 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 20:37:09,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:37:09 BasicIcfg [2024-11-12 20:37:09,752 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 20:37:09,753 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:37:09,753 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:37:09,756 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:37:09,756 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:37:04" (3/4) ... [2024-11-12 20:37:09,757 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 20:37:09,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-12 20:37:09,762 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 79 nodes and edges [2024-11-12 20:37:09,763 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-12 20:37:09,763 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-12 20:37:09,826 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 20:37:09,828 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 20:37:09,828 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:37:09,829 INFO L158 Benchmark]: Toolchain (without parser) took 6749.49ms. Allocated memory was 188.7MB in the beginning and 325.1MB in the end (delta: 136.3MB). Free memory was 112.3MB in the beginning and 193.7MB in the end (delta: -81.3MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2024-11-12 20:37:09,829 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 188.7MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:37:09,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.86ms. Allocated memory is still 188.7MB. Free memory was 112.0MB in the beginning and 88.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-12 20:37:09,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.90ms. Allocated memory is still 188.7MB. Free memory was 88.5MB in the beginning and 86.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:37:09,829 INFO L158 Benchmark]: Boogie Preprocessor took 54.91ms. Allocated memory is still 188.7MB. Free memory was 86.0MB in the beginning and 83.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:37:09,830 INFO L158 Benchmark]: RCFGBuilder took 560.87ms. Allocated memory is still 188.7MB. Free memory was 83.6MB in the beginning and 75.3MB in the end (delta: 8.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2024-11-12 20:37:09,830 INFO L158 Benchmark]: TraceAbstraction took 5588.98ms. Allocated memory was 188.7MB in the beginning and 325.1MB in the end (delta: 136.3MB). Free memory was 74.3MB in the beginning and 198.9MB in the end (delta: -124.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-12 20:37:09,830 INFO L158 Benchmark]: Witness Printer took 75.76ms. Allocated memory is still 325.1MB. Free memory was 198.9MB in the beginning and 193.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 20:37:09,831 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 188.7MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.86ms. Allocated memory is still 188.7MB. Free memory was 112.0MB in the beginning and 88.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.90ms. Allocated memory is still 188.7MB. Free memory was 88.5MB in the beginning and 86.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.91ms. Allocated memory is still 188.7MB. Free memory was 86.0MB in the beginning and 83.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 560.87ms. Allocated memory is still 188.7MB. Free memory was 83.6MB in the beginning and 75.3MB in the end (delta: 8.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5588.98ms. Allocated memory was 188.7MB in the beginning and 325.1MB in the end (delta: 136.3MB). Free memory was 74.3MB in the beginning and 198.9MB in the end (delta: -124.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 75.76ms. Allocated memory is still 325.1MB. Free memory was 198.9MB in the beginning and 193.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 696]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 46 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.5s, OverallIterations: 14, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 322 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 268 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 134 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1289 IncrementalHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 26 mSDtfsCounter, 1289 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 281 GetRequests, 144 SyntacticMatches, 11 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=356occurred in iteration=9, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 494 NumberOfCodeBlocks, 473 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 539 ConstructedInterpolants, 0 QuantifiedInterpolants, 2769 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1050 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 22 InterpolantComputations, 11 PerfectInterpolantSequences, 824/1145 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-12 20:37:09,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE