./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/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 ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_06-tricky_address1.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.graphml --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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:36:04,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:36:04,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:36:04,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:36:04,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:36:04,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:36:04,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:36:04,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:36:04,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:36:04,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:36:04,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:36:04,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:36:04,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:36:04,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:36:04,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:36:04,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:36:04,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:36:04,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:36:04,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:36:04,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:36:04,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:36:04,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:36:04,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:36:04,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:36:04,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:36:04,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:36:04,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:36:04,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:36:04,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:36:04,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:36:04,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:36:04,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:36:04,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:36:04,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:36:04,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:36:04,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:36:04,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:36:04,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:36:04,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:36:04,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:36:04,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:36:04,364 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:36:04,389 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:36:04,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:36:04,390 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:36:04,390 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:36:04,390 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:36:04,391 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:36:04,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:36:04,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:36:04,391 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:36:04,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:36:04,392 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:36:04,392 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:36:04,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:36:04,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:36:04,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:36:04,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:36:04,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:36:04,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:36:04,393 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:36:04,394 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:36:04,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:36:04,397 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:36:04,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:36:04,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:36:04,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:36:04,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:36:04,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:36:04,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:36:04,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:36:04,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:36:04,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:36:04,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:36:04,400 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:36:04,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:36:04,400 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:36:04,401 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:36:04,401 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:36:04,401 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:36:04,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:36:04,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:36:04,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:36:04,661 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:36:04,661 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:36:04,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_06-tricky_address1.i [2023-08-30 09:36:05,533 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:36:05,791 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:36:05,791 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_06-tricky_address1.i [2023-08-30 09:36:05,804 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9f3cedbb/ff96629e8458413ea6a8a49b04f392b5/FLAG353c27793 [2023-08-30 09:36:06,085 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9f3cedbb/ff96629e8458413ea6a8a49b04f392b5 [2023-08-30 09:36:06,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:36:06,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:36:06,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:36:06,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:36:06,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:36:06,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:36:06" (1/1) ... [2023-08-30 09:36:06,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f98943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06, skipping insertion in model container [2023-08-30 09:36:06,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:36:06" (1/1) ... [2023-08-30 09:36:06,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:36:06,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:36:06,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:36:06,465 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:36:06,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:36:06,554 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:36:06,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06 WrapperNode [2023-08-30 09:36:06,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:36:06,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:36:06,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:36:06,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:36:06,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06" (1/1) ... [2023-08-30 09:36:06,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06" (1/1) ... [2023-08-30 09:36:06,609 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-08-30 09:36:06,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:36:06,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:36:06,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:36:06,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:36:06,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06" (1/1) ... [2023-08-30 09:36:06,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06" (1/1) ... [2023-08-30 09:36:06,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06" (1/1) ... [2023-08-30 09:36:06,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06" (1/1) ... [2023-08-30 09:36:06,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06" (1/1) ... [2023-08-30 09:36:06,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06" (1/1) ... [2023-08-30 09:36:06,643 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06" (1/1) ... [2023-08-30 09:36:06,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06" (1/1) ... [2023-08-30 09:36:06,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:36:06,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:36:06,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:36:06,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:36:06,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06" (1/1) ... [2023-08-30 09:36:06,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:36:06,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:36:06,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 09:36:06,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 09:36:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:36:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:36:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 09:36:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:36:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 09:36:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:36:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 09:36:06,708 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 09:36:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:36:06,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:36:06,709 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 09:36:06,852 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:36:06,853 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:36:06,972 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:36:06,976 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:36:06,976 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-30 09:36:06,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:36:06 BoogieIcfgContainer [2023-08-30 09:36:06,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:36:06,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:36:06,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:36:06,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:36:06,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:36:06" (1/3) ... [2023-08-30 09:36:06,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f59d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:36:06, skipping insertion in model container [2023-08-30 09:36:06,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:36:06" (2/3) ... [2023-08-30 09:36:06,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f59d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:36:06, skipping insertion in model container [2023-08-30 09:36:06,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:36:06" (3/3) ... [2023-08-30 09:36:06,982 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2023-08-30 09:36:06,987 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:36:06,993 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:36:06,993 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 09:36:06,994 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:36:07,049 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 09:36:07,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 82 transitions, 169 flow [2023-08-30 09:36:07,099 INFO L130 PetriNetUnfolder]: 4/81 cut-off events. [2023-08-30 09:36:07,100 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:07,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 4/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2023-08-30 09:36:07,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 82 transitions, 169 flow [2023-08-30 09:36:07,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 81 transitions, 165 flow [2023-08-30 09:36:07,107 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:36:07,113 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 81 transitions, 165 flow [2023-08-30 09:36:07,114 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 81 transitions, 165 flow [2023-08-30 09:36:07,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 81 transitions, 165 flow [2023-08-30 09:36:07,128 INFO L130 PetriNetUnfolder]: 4/81 cut-off events. [2023-08-30 09:36:07,130 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:07,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 4/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2023-08-30 09:36:07,131 INFO L119 LiptonReduction]: Number of co-enabled transitions 988 [2023-08-30 09:36:08,554 INFO L134 LiptonReduction]: Checked pairs total: 1232 [2023-08-30 09:36:08,554 INFO L136 LiptonReduction]: Total number of compositions: 80 [2023-08-30 09:36:08,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:36:08,567 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@31eb8aff, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:36:08,567 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-30 09:36:08,568 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-08-30 09:36:08,569 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:08,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:08,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-30 09:36:08,569 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:36:08,572 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:08,572 INFO L85 PathProgramCache]: Analyzing trace with hash 10024, now seen corresponding path program 1 times [2023-08-30 09:36:08,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:08,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843504038] [2023-08-30 09:36:08,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:08,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:08,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:08,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:08,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843504038] [2023-08-30 09:36:08,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843504038] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:08,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:08,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 09:36:08,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922701612] [2023-08-30 09:36:08,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:08,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 09:36:08,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:08,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 09:36:08,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 09:36:08,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 162 [2023-08-30 09:36:08,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:36:08,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:08,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 162 [2023-08-30 09:36:08,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:08,810 INFO L130 PetriNetUnfolder]: 37/90 cut-off events. [2023-08-30 09:36:08,811 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:08,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 90 events. 37/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 284 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 90 conditions per place. [2023-08-30 09:36:08,814 INFO L137 encePairwiseOnDemand]: 157/162 looper letters, 16 selfloop transitions, 2 changer transitions 0/18 dead transitions. [2023-08-30 09:36:08,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 75 flow [2023-08-30 09:36:08,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 09:36:08,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 09:36:08,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2023-08-30 09:36:08,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5020576131687243 [2023-08-30 09:36:08,830 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2023-08-30 09:36:08,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2023-08-30 09:36:08,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:08,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2023-08-30 09:36:08,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2023-08-30 09:36:08,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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) [2023-08-30 09:36:08,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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) [2023-08-30 09:36:08,843 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 39 flow. Second operand 3 states and 244 transitions. [2023-08-30 09:36:08,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 75 flow [2023-08-30 09:36:08,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:36:08,847 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 50 flow [2023-08-30 09:36:08,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-08-30 09:36:08,852 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2023-08-30 09:36:08,852 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 50 flow [2023-08-30 09:36:08,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:36:08,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:08,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 09:36:08,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:36:08,853 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:36:08,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:08,854 INFO L85 PathProgramCache]: Analyzing trace with hash 311623, now seen corresponding path program 1 times [2023-08-30 09:36:08,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:08,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993817874] [2023-08-30 09:36:08,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:08,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:08,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:08,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:08,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993817874] [2023-08-30 09:36:08,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993817874] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:36:08,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726783438] [2023-08-30 09:36:08,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:08,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:36:08,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:36:08,928 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) [2023-08-30 09:36:08,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 09:36:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:08,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2023-08-30 09:36:08,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:36:09,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:09,013 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 09:36:09,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726783438] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:09,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 09:36:09,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-08-30 09:36:09,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059654197] [2023-08-30 09:36:09,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:09,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 09:36:09,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:09,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 09:36:09,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-30 09:36:09,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 162 [2023-08-30 09:36:09,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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) [2023-08-30 09:36:09,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:09,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 162 [2023-08-30 09:36:09,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:09,069 INFO L130 PetriNetUnfolder]: 37/89 cut-off events. [2023-08-30 09:36:09,070 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:09,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 89 events. 37/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 282 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 178. Up to 88 conditions per place. [2023-08-30 09:36:09,071 INFO L137 encePairwiseOnDemand]: 159/162 looper letters, 15 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2023-08-30 09:36:09,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 80 flow [2023-08-30 09:36:09,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 09:36:09,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 09:36:09,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 314 transitions. [2023-08-30 09:36:09,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4845679012345679 [2023-08-30 09:36:09,073 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 314 transitions. [2023-08-30 09:36:09,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 314 transitions. [2023-08-30 09:36:09,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:09,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 314 transitions. [2023-08-30 09:36:09,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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) [2023-08-30 09:36:09,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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) [2023-08-30 09:36:09,077 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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) [2023-08-30 09:36:09,077 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 50 flow. Second operand 4 states and 314 transitions. [2023-08-30 09:36:09,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 80 flow [2023-08-30 09:36:09,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 17 transitions, 76 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 09:36:09,078 INFO L231 Difference]: Finished difference. Result has 23 places, 17 transitions, 46 flow [2023-08-30 09:36:09,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=46, PETRI_PLACES=23, PETRI_TRANSITIONS=17} [2023-08-30 09:36:09,079 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 2 predicate places. [2023-08-30 09:36:09,079 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 17 transitions, 46 flow [2023-08-30 09:36:09,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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) [2023-08-30 09:36:09,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:09,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 09:36:09,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 09:36:09,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:36:09,286 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:36:09,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:09,286 INFO L85 PathProgramCache]: Analyzing trace with hash 694699110, now seen corresponding path program 1 times [2023-08-30 09:36:09,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:09,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531371243] [2023-08-30 09:36:09,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:09,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:09,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:09,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:09,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531371243] [2023-08-30 09:36:09,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531371243] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:36:09,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799061434] [2023-08-30 09:36:09,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:09,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:36:09,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:36:09,391 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) [2023-08-30 09:36:09,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 09:36:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:09,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-30 09:36:09,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:36:09,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:09,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:36:09,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:09,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799061434] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:36:09,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:36:09,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-30 09:36:09,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943537108] [2023-08-30 09:36:09,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:36:09,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:36:09,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:09,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:36:09,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:36:09,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 162 [2023-08-30 09:36:09,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 17 transitions, 46 flow. Second operand has 7 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 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) [2023-08-30 09:36:09,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:09,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 162 [2023-08-30 09:36:09,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:09,535 INFO L130 PetriNetUnfolder]: 37/92 cut-off events. [2023-08-30 09:36:09,535 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:36:09,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 92 events. 37/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 282 event pairs, 36 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 187. Up to 89 conditions per place. [2023-08-30 09:36:09,546 INFO L137 encePairwiseOnDemand]: 159/162 looper letters, 15 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2023-08-30 09:36:09,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 98 flow [2023-08-30 09:36:09,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:36:09,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:36:09,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 461 transitions. [2023-08-30 09:36:09,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4742798353909465 [2023-08-30 09:36:09,550 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 461 transitions. [2023-08-30 09:36:09,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 461 transitions. [2023-08-30 09:36:09,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:09,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 461 transitions. [2023-08-30 09:36:09,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 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) [2023-08-30 09:36:09,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 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) [2023-08-30 09:36:09,555 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 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) [2023-08-30 09:36:09,555 INFO L175 Difference]: Start difference. First operand has 23 places, 17 transitions, 46 flow. Second operand 6 states and 461 transitions. [2023-08-30 09:36:09,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 98 flow [2023-08-30 09:36:09,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 95 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 09:36:09,555 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 79 flow [2023-08-30 09:36:09,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-08-30 09:36:09,556 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 8 predicate places. [2023-08-30 09:36:09,556 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 79 flow [2023-08-30 09:36:09,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 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) [2023-08-30 09:36:09,557 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:09,557 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2023-08-30 09:36:09,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 09:36:09,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-08-30 09:36:09,761 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:36:09,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:09,763 INFO L85 PathProgramCache]: Analyzing trace with hash 964747045, now seen corresponding path program 2 times [2023-08-30 09:36:09,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:09,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130673531] [2023-08-30 09:36:09,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:09,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:09,883 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:09,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:09,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130673531] [2023-08-30 09:36:09,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130673531] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:36:09,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779638812] [2023-08-30 09:36:09,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 09:36:09,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:36:09,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:36:09,889 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) [2023-08-30 09:36:09,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 09:36:09,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 09:36:09,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 09:36:09,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-30 09:36:09,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:36:10,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-08-30 09:36:10,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 09:36:10,067 INFO L350 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 13 treesize of output 15 [2023-08-30 09:36:10,088 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-30 09:36:10,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 09:36:10,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779638812] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:10,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 09:36:10,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2023-08-30 09:36:10,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496196521] [2023-08-30 09:36:10,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:10,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 09:36:10,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:10,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 09:36:10,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-30 09:36:10,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 162 [2023-08-30 09:36:10,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 79 flow. Second operand has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 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) [2023-08-30 09:36:10,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:10,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 162 [2023-08-30 09:36:10,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:10,195 INFO L130 PetriNetUnfolder]: 21/60 cut-off events. [2023-08-30 09:36:10,195 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:36:10,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 60 events. 21/60 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 147 event pairs, 6 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 133. Up to 41 conditions per place. [2023-08-30 09:36:10,195 INFO L137 encePairwiseOnDemand]: 154/162 looper letters, 20 selfloop transitions, 5 changer transitions 4/29 dead transitions. [2023-08-30 09:36:10,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 29 transitions, 155 flow [2023-08-30 09:36:10,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 09:36:10,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 09:36:10,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2023-08-30 09:36:10,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49228395061728397 [2023-08-30 09:36:10,197 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 319 transitions. [2023-08-30 09:36:10,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 319 transitions. [2023-08-30 09:36:10,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:10,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 319 transitions. [2023-08-30 09:36:10,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:36:10,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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) [2023-08-30 09:36:10,199 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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) [2023-08-30 09:36:10,200 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 79 flow. Second operand 4 states and 319 transitions. [2023-08-30 09:36:10,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 29 transitions, 155 flow [2023-08-30 09:36:10,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 141 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-30 09:36:10,201 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 99 flow [2023-08-30 09:36:10,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2023-08-30 09:36:10,202 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 12 predicate places. [2023-08-30 09:36:10,202 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 99 flow [2023-08-30 09:36:10,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 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) [2023-08-30 09:36:10,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:10,202 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:36:10,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 09:36:10,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:36:10,407 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:36:10,407 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:10,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1171948448, now seen corresponding path program 1 times [2023-08-30 09:36:10,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:10,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878823672] [2023-08-30 09:36:10,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:10,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:10,502 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:10,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:10,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878823672] [2023-08-30 09:36:10,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878823672] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 09:36:10,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913592609] [2023-08-30 09:36:10,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:10,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:36:10,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:36:10,503 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) [2023-08-30 09:36:10,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 09:36:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:10,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-30 09:36:10,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 09:36:10,570 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:10,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-30 09:36:10,610 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:36:10,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913592609] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-30 09:36:10,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-30 09:36:10,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-30 09:36:10,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293756057] [2023-08-30 09:36:10,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-30 09:36:10,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 09:36:10,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:10,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 09:36:10,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-30 09:36:10,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 162 [2023-08-30 09:36:10,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 99 flow. Second operand has 13 states, 13 states have (on average 74.53846153846153) internal successors, (969), 13 states have internal predecessors, (969), 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) [2023-08-30 09:36:10,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:10,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 162 [2023-08-30 09:36:10,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:10,671 INFO L130 PetriNetUnfolder]: 17/58 cut-off events. [2023-08-30 09:36:10,671 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-08-30 09:36:10,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 58 events. 17/58 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 117 event pairs, 14 based on Foata normal form. 6/60 useless extension candidates. Maximal degree in co-relation 167. Up to 49 conditions per place. [2023-08-30 09:36:10,672 INFO L137 encePairwiseOnDemand]: 159/162 looper letters, 17 selfloop transitions, 11 changer transitions 0/28 dead transitions. [2023-08-30 09:36:10,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 28 transitions, 191 flow [2023-08-30 09:36:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 09:36:10,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 09:36:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 908 transitions. [2023-08-30 09:36:10,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4670781893004115 [2023-08-30 09:36:10,673 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 908 transitions. [2023-08-30 09:36:10,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 908 transitions. [2023-08-30 09:36:10,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:10,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 908 transitions. [2023-08-30 09:36:10,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 75.66666666666667) internal successors, (908), 12 states have internal predecessors, (908), 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) [2023-08-30 09:36:10,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 162.0) internal successors, (2106), 13 states have internal predecessors, (2106), 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) [2023-08-30 09:36:10,677 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 162.0) internal successors, (2106), 13 states have internal predecessors, (2106), 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) [2023-08-30 09:36:10,677 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 99 flow. Second operand 12 states and 908 transitions. [2023-08-30 09:36:10,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 28 transitions, 191 flow [2023-08-30 09:36:10,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 28 transitions, 187 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 09:36:10,681 INFO L231 Difference]: Finished difference. Result has 49 places, 28 transitions, 179 flow [2023-08-30 09:36:10,681 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=179, PETRI_PLACES=49, PETRI_TRANSITIONS=28} [2023-08-30 09:36:10,683 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 28 predicate places. [2023-08-30 09:36:10,683 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 28 transitions, 179 flow [2023-08-30 09:36:10,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 74.53846153846153) internal successors, (969), 13 states have internal predecessors, (969), 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) [2023-08-30 09:36:10,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:10,684 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:36:10,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-30 09:36:10,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 09:36:10,888 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:36:10,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:10,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1295549060, now seen corresponding path program 2 times [2023-08-30 09:36:10,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:10,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054123975] [2023-08-30 09:36:10,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:10,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:11,201 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:36:11,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:11,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054123975] [2023-08-30 09:36:11,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054123975] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:11,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:11,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 09:36:11,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043629419] [2023-08-30 09:36:11,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:11,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:36:11,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:11,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:36:11,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:36:11,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 162 [2023-08-30 09:36:11,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 28 transitions, 179 flow. Second operand has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 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) [2023-08-30 09:36:11,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:11,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 162 [2023-08-30 09:36:11,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:11,366 INFO L130 PetriNetUnfolder]: 16/55 cut-off events. [2023-08-30 09:36:11,366 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2023-08-30 09:36:11,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 55 events. 16/55 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 109 event pairs, 2 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 173. Up to 17 conditions per place. [2023-08-30 09:36:11,367 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 26 selfloop transitions, 7 changer transitions 5/38 dead transitions. [2023-08-30 09:36:11,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 38 transitions, 277 flow [2023-08-30 09:36:11,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 09:36:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 09:36:11,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 492 transitions. [2023-08-30 09:36:11,369 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43386243386243384 [2023-08-30 09:36:11,369 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 492 transitions. [2023-08-30 09:36:11,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 492 transitions. [2023-08-30 09:36:11,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:11,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 492 transitions. [2023-08-30 09:36:11,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.28571428571429) internal successors, (492), 7 states have internal predecessors, (492), 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) [2023-08-30 09:36:11,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 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) [2023-08-30 09:36:11,371 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 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) [2023-08-30 09:36:11,371 INFO L175 Difference]: Start difference. First operand has 49 places, 28 transitions, 179 flow. Second operand 7 states and 492 transitions. [2023-08-30 09:36:11,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 38 transitions, 277 flow [2023-08-30 09:36:11,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 38 transitions, 229 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-30 09:36:11,376 INFO L231 Difference]: Finished difference. Result has 49 places, 27 transitions, 139 flow [2023-08-30 09:36:11,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=139, PETRI_PLACES=49, PETRI_TRANSITIONS=27} [2023-08-30 09:36:11,378 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 28 predicate places. [2023-08-30 09:36:11,378 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 27 transitions, 139 flow [2023-08-30 09:36:11,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 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) [2023-08-30 09:36:11,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:11,379 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:36:11,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 09:36:11,383 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:36:11,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:11,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1265162239, now seen corresponding path program 1 times [2023-08-30 09:36:11,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:11,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142267627] [2023-08-30 09:36:11,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:11,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:11,621 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:36:11,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:11,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142267627] [2023-08-30 09:36:11,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142267627] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:11,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:11,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 09:36:11,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906746451] [2023-08-30 09:36:11,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:11,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:36:11,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:11,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:36:11,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:36:11,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 162 [2023-08-30 09:36:11,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 27 transitions, 139 flow. Second operand has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 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) [2023-08-30 09:36:11,703 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:11,703 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 162 [2023-08-30 09:36:11,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:11,789 INFO L130 PetriNetUnfolder]: 13/48 cut-off events. [2023-08-30 09:36:11,790 INFO L131 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2023-08-30 09:36:11,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 48 events. 13/48 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 84 event pairs, 2 based on Foata normal form. 2/48 useless extension candidates. Maximal degree in co-relation 146. Up to 16 conditions per place. [2023-08-30 09:36:11,790 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 21 selfloop transitions, 4 changer transitions 9/34 dead transitions. [2023-08-30 09:36:11,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 34 transitions, 217 flow [2023-08-30 09:36:11,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 09:36:11,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 09:36:11,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 488 transitions. [2023-08-30 09:36:11,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43033509700176364 [2023-08-30 09:36:11,792 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 488 transitions. [2023-08-30 09:36:11,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 488 transitions. [2023-08-30 09:36:11,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:11,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 488 transitions. [2023-08-30 09:36:11,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 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) [2023-08-30 09:36:11,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 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) [2023-08-30 09:36:11,795 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 162.0) internal successors, (1296), 8 states have internal predecessors, (1296), 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) [2023-08-30 09:36:11,795 INFO L175 Difference]: Start difference. First operand has 49 places, 27 transitions, 139 flow. Second operand 7 states and 488 transitions. [2023-08-30 09:36:11,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 34 transitions, 217 flow [2023-08-30 09:36:11,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 34 transitions, 204 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 09:36:11,796 INFO L231 Difference]: Finished difference. Result has 49 places, 23 transitions, 119 flow [2023-08-30 09:36:11,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=119, PETRI_PLACES=49, PETRI_TRANSITIONS=23} [2023-08-30 09:36:11,797 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 28 predicate places. [2023-08-30 09:36:11,797 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 23 transitions, 119 flow [2023-08-30 09:36:11,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 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) [2023-08-30 09:36:11,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:11,797 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:36:11,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 09:36:11,798 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:36:11,798 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:11,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1264274776, now seen corresponding path program 1 times [2023-08-30 09:36:11,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:11,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315097775] [2023-08-30 09:36:11,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:11,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:12,004 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:36:12,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:12,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315097775] [2023-08-30 09:36:12,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315097775] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:12,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:12,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 09:36:12,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794060660] [2023-08-30 09:36:12,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:12,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:36:12,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:12,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:36:12,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:36:12,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 162 [2023-08-30 09:36:12,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 23 transitions, 119 flow. Second operand has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 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) [2023-08-30 09:36:12,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:12,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 162 [2023-08-30 09:36:12,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:12,178 INFO L130 PetriNetUnfolder]: 8/37 cut-off events. [2023-08-30 09:36:12,178 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2023-08-30 09:36:12,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 37 events. 8/37 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 3 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 116. Up to 15 conditions per place. [2023-08-30 09:36:12,179 INFO L137 encePairwiseOnDemand]: 156/162 looper letters, 20 selfloop transitions, 9 changer transitions 0/29 dead transitions. [2023-08-30 09:36:12,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 29 transitions, 201 flow [2023-08-30 09:36:12,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 09:36:12,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 09:36:12,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 548 transitions. [2023-08-30 09:36:12,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4228395061728395 [2023-08-30 09:36:12,180 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 548 transitions. [2023-08-30 09:36:12,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 548 transitions. [2023-08-30 09:36:12,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:12,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 548 transitions. [2023-08-30 09:36:12,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 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) [2023-08-30 09:36:12,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 162.0) internal successors, (1458), 9 states have internal predecessors, (1458), 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) [2023-08-30 09:36:12,183 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 162.0) internal successors, (1458), 9 states have internal predecessors, (1458), 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) [2023-08-30 09:36:12,183 INFO L175 Difference]: Start difference. First operand has 49 places, 23 transitions, 119 flow. Second operand 8 states and 548 transitions. [2023-08-30 09:36:12,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 29 transitions, 201 flow [2023-08-30 09:36:12,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 29 transitions, 189 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 09:36:12,185 INFO L231 Difference]: Finished difference. Result has 48 places, 27 transitions, 155 flow [2023-08-30 09:36:12,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=155, PETRI_PLACES=48, PETRI_TRANSITIONS=27} [2023-08-30 09:36:12,185 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 27 predicate places. [2023-08-30 09:36:12,185 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 27 transitions, 155 flow [2023-08-30 09:36:12,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 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) [2023-08-30 09:36:12,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:12,186 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:36:12,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 09:36:12,186 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:36:12,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:12,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1264260859, now seen corresponding path program 1 times [2023-08-30 09:36:12,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:12,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693082919] [2023-08-30 09:36:12,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:12,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:12,380 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:36:12,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:12,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693082919] [2023-08-30 09:36:12,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693082919] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:12,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:12,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 09:36:12,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59174919] [2023-08-30 09:36:12,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:12,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:36:12,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:12,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:36:12,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:36:12,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 162 [2023-08-30 09:36:12,444 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 27 transitions, 155 flow. Second operand has 7 states, 7 states have (on average 68.28571428571429) internal successors, (478), 7 states have internal predecessors, (478), 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) [2023-08-30 09:36:12,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:12,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 162 [2023-08-30 09:36:12,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:12,503 INFO L130 PetriNetUnfolder]: 5/32 cut-off events. [2023-08-30 09:36:12,503 INFO L131 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2023-08-30 09:36:12,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 32 events. 5/32 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 0 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 106. Up to 15 conditions per place. [2023-08-30 09:36:12,504 INFO L137 encePairwiseOnDemand]: 157/162 looper letters, 17 selfloop transitions, 4 changer transitions 6/27 dead transitions. [2023-08-30 09:36:12,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 27 transitions, 199 flow [2023-08-30 09:36:12,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 09:36:12,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 09:36:12,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 553 transitions. [2023-08-30 09:36:12,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42669753086419754 [2023-08-30 09:36:12,506 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 553 transitions. [2023-08-30 09:36:12,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 553 transitions. [2023-08-30 09:36:12,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:12,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 553 transitions. [2023-08-30 09:36:12,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 69.125) internal successors, (553), 8 states have internal predecessors, (553), 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) [2023-08-30 09:36:12,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 162.0) internal successors, (1458), 9 states have internal predecessors, (1458), 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) [2023-08-30 09:36:12,508 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 162.0) internal successors, (1458), 9 states have internal predecessors, (1458), 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) [2023-08-30 09:36:12,508 INFO L175 Difference]: Start difference. First operand has 48 places, 27 transitions, 155 flow. Second operand 8 states and 553 transitions. [2023-08-30 09:36:12,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 27 transitions, 199 flow [2023-08-30 09:36:12,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 27 transitions, 182 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 09:36:12,510 INFO L231 Difference]: Finished difference. Result has 49 places, 20 transitions, 107 flow [2023-08-30 09:36:12,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=107, PETRI_PLACES=49, PETRI_TRANSITIONS=20} [2023-08-30 09:36:12,510 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 28 predicate places. [2023-08-30 09:36:12,510 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 20 transitions, 107 flow [2023-08-30 09:36:12,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.28571428571429) internal successors, (478), 7 states have internal predecessors, (478), 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) [2023-08-30 09:36:12,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:36:12,511 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:36:12,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 09:36:12,511 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-08-30 09:36:12,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:36:12,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1264260826, now seen corresponding path program 2 times [2023-08-30 09:36:12,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:36:12,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995969642] [2023-08-30 09:36:12,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:36:12,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:36:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:36:12,673 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-30 09:36:12,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:36:12,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995969642] [2023-08-30 09:36:12,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995969642] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:36:12,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:36:12,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 09:36:12,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464539973] [2023-08-30 09:36:12,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:36:12,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 09:36:12,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:36:12,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 09:36:12,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-08-30 09:36:12,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 162 [2023-08-30 09:36:12,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 20 transitions, 107 flow. Second operand has 7 states, 7 states have (on average 68.28571428571429) internal successors, (478), 7 states have internal predecessors, (478), 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) [2023-08-30 09:36:12,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:36:12,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 162 [2023-08-30 09:36:12,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:36:12,761 INFO L130 PetriNetUnfolder]: 2/21 cut-off events. [2023-08-30 09:36:12,761 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2023-08-30 09:36:12,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 21 events. 2/21 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 2/23 useless extension candidates. Maximal degree in co-relation 77. Up to 15 conditions per place. [2023-08-30 09:36:12,761 INFO L137 encePairwiseOnDemand]: 157/162 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2023-08-30 09:36:12,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 20 transitions, 143 flow [2023-08-30 09:36:12,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 09:36:12,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 09:36:12,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 413 transitions. [2023-08-30 09:36:12,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42489711934156377 [2023-08-30 09:36:12,763 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 413 transitions. [2023-08-30 09:36:12,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 413 transitions. [2023-08-30 09:36:12,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:36:12,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 413 transitions. [2023-08-30 09:36:12,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.83333333333333) internal successors, (413), 6 states have internal predecessors, (413), 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) [2023-08-30 09:36:12,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 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) [2023-08-30 09:36:12,766 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 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) [2023-08-30 09:36:12,766 INFO L175 Difference]: Start difference. First operand has 49 places, 20 transitions, 107 flow. Second operand 6 states and 413 transitions. [2023-08-30 09:36:12,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 20 transitions, 143 flow [2023-08-30 09:36:12,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 20 transitions, 130 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-30 09:36:12,767 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-08-30 09:36:12,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-08-30 09:36:12,767 INFO L281 CegarLoopForPetriNet]: 21 programPoint places, 20 predicate places. [2023-08-30 09:36:12,767 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-08-30 09:36:12,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.28571428571429) internal successors, (478), 7 states have internal predecessors, (478), 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) [2023-08-30 09:36:12,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2023-08-30 09:36:12,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2023-08-30 09:36:12,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2023-08-30 09:36:12,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2023-08-30 09:36:12,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-30 09:36:12,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2023-08-30 09:36:12,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2023-08-30 09:36:12,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2023-08-30 09:36:12,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2023-08-30 09:36:12,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 09:36:12,771 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2023-08-30 09:36:12,774 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 09:36:12,774 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 09:36:12,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 09:36:12 BasicIcfg [2023-08-30 09:36:12,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 09:36:12,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 09:36:12,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 09:36:12,782 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 09:36:12,783 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:36:06" (3/4) ... [2023-08-30 09:36:12,784 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 09:36:12,788 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-30 09:36:12,791 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-08-30 09:36:12,791 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-08-30 09:36:12,791 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 09:36:12,816 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 09:36:12,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 09:36:12,817 INFO L158 Benchmark]: Toolchain (without parser) took 6727.98ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 62.0MB in the beginning and 122.6MB in the end (delta: -60.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-08-30 09:36:12,817 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 62.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:36:12,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.79ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 53.8MB in the end (delta: 7.9MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-08-30 09:36:12,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.32ms. Allocated memory is still 86.0MB. Free memory was 53.8MB in the beginning and 51.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:36:12,817 INFO L158 Benchmark]: Boogie Preprocessor took 37.99ms. Allocated memory is still 86.0MB. Free memory was 51.1MB in the beginning and 49.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:36:12,817 INFO L158 Benchmark]: RCFGBuilder took 328.99ms. Allocated memory is still 86.0MB. Free memory was 49.6MB in the beginning and 36.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 09:36:12,818 INFO L158 Benchmark]: TraceAbstraction took 5803.27ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 35.6MB in the beginning and 124.7MB in the end (delta: -89.1MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2023-08-30 09:36:12,818 INFO L158 Benchmark]: Witness Printer took 34.15ms. Allocated memory is still 151.0MB. Free memory was 124.7MB in the beginning and 122.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:36:12,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 62.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.79ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 53.8MB in the end (delta: 7.9MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.32ms. Allocated memory is still 86.0MB. Free memory was 53.8MB in the beginning and 51.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.99ms. Allocated memory is still 86.0MB. Free memory was 51.1MB in the beginning and 49.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.99ms. Allocated memory is still 86.0MB. Free memory was 49.6MB in the beginning and 36.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5803.27ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 35.6MB in the beginning and 124.7MB in the end (delta: -89.1MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. * Witness Printer took 34.15ms. Allocated memory is still 151.0MB. Free memory was 124.7MB in the beginning and 122.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 81 PlacesBefore, 21 PlacesAfterwards, 81 TransitionsBefore, 18 TransitionsAfterwards, 988 CoEnabledTransitionPairs, 5 FixpointIterations, 30 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 2 ConcurrentYvCompositions, 3 ChoiceCompositions, 80 TotalNumberOfCompositions, 1232 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 917, independent: 847, independent conditional: 0, independent unconditional: 847, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 550, independent: 528, independent conditional: 0, independent unconditional: 528, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 917, independent: 319, independent conditional: 0, independent unconditional: 319, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 550, unknown conditional: 0, unknown unconditional: 550] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: 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, 106 locations, 9 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: 5.7s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 771 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 553 mSDsluCounter, 425 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 323 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1344 IncrementalHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 102 mSDtfsCounter, 1344 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=5, InterpolantAutomatonStates: 65, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 152 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 1319 SizeOfPredicates, 3 NumberOfNonLiveVariables, 331 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 286/330 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 09:36:12,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE