./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c 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 ../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.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 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:24:54,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:24:54,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:24:54,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:24:54,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:24:54,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:24:54,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:24:54,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:24:54,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:24:54,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:24:54,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:24:54,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:24:54,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:24:54,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:24:54,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:24:54,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:24:54,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:24:54,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:24:54,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:24:54,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:24:54,134 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:24:54,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:24:54,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:24:54,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:24:54,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:24:54,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:24:54,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:24:54,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:24:54,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:24:54,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:24:54,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:24:54,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:24:54,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:24:54,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:24:54,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:24:54,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:24:54,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:24:54,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:24:54,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:24:54,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:24:54,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:24:54,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:24:54,147 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:24:54,162 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:24:54,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:24:54,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:24:54,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:24:54,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:24:54,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:24:54,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:24:54,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:24:54,164 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:24:54,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:24:54,165 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:24:54,165 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:24:54,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:24:54,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:24:54,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:24:54,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:24:54,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:24:54,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:24:54,166 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:24:54,166 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:24:54,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:24:54,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:24:54,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:24:54,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:24:54,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:24:54,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:24:54,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:24:54,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:24:54,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:24:54,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:24:54,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:24:54,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:24:54,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:24:54,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad [2022-07-13 02:24:54,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:24:54,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:24:54,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:24:54,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:24:54,348 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:24:54,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2022-07-13 02:24:54,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd326d60b/4cdad8389a6347fbbbd6e7b05eeaaac5/FLAGc68212ff4 [2022-07-13 02:24:54,833 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:24:54,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2022-07-13 02:24:54,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd326d60b/4cdad8389a6347fbbbd6e7b05eeaaac5/FLAGc68212ff4 [2022-07-13 02:24:54,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd326d60b/4cdad8389a6347fbbbd6e7b05eeaaac5 [2022-07-13 02:24:54,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:24:54,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:24:54,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:24:54,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:24:54,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:24:54,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:24:54" (1/1) ... [2022-07-13 02:24:54,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@515bc57c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:54, skipping insertion in model container [2022-07-13 02:24:54,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:24:54" (1/1) ... [2022-07-13 02:24:54,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:24:54,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:24:55,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:24:55,275 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:24:55,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:24:55,361 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:24:55,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:55 WrapperNode [2022-07-13 02:24:55,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:24:55,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:24:55,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:24:55,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:24:55,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:55" (1/1) ... [2022-07-13 02:24:55,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:55" (1/1) ... [2022-07-13 02:24:55,406 INFO L137 Inliner]: procedures = 368, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-07-13 02:24:55,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:24:55,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:24:55,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:24:55,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:24:55,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:55" (1/1) ... [2022-07-13 02:24:55,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:55" (1/1) ... [2022-07-13 02:24:55,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:55" (1/1) ... [2022-07-13 02:24:55,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:55" (1/1) ... [2022-07-13 02:24:55,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:55" (1/1) ... [2022-07-13 02:24:55,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:55" (1/1) ... [2022-07-13 02:24:55,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:55" (1/1) ... [2022-07-13 02:24:55,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:24:55,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:24:55,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:24:55,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:24:55,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:55" (1/1) ... [2022-07-13 02:24:55,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:24:55,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:24:55,463 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) [2022-07-13 02:24:55,483 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 [2022-07-13 02:24:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:24:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:24:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 02:24:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:24:55,493 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 02:24:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 02:24:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:24:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 02:24:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 02:24:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 02:24:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:24:55,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:24:55,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:24:55,495 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 02:24:55,606 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:24:55,608 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:24:55,802 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:24:55,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:24:55,807 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 02:24:55,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:24:55 BoogieIcfgContainer [2022-07-13 02:24:55,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:24:55,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:24:55,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:24:55,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:24:55,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:24:54" (1/3) ... [2022-07-13 02:24:55,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31537b61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:24:55, skipping insertion in model container [2022-07-13 02:24:55,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:24:55" (2/3) ... [2022-07-13 02:24:55,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31537b61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:24:55, skipping insertion in model container [2022-07-13 02:24:55,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:24:55" (3/3) ... [2022-07-13 02:24:55,823 INFO L111 eAbstractionObserver]: Analyzing ICFG 09-regions_28-list2alloc.i [2022-07-13 02:24:55,826 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 02:24:55,832 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:24:55,832 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-13 02:24:55,832 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 02:24:55,862 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-13 02:24:55,886 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:24:55,894 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 101 transitions, 207 flow [2022-07-13 02:24:55,896 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 101 transitions, 207 flow [2022-07-13 02:24:55,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 101 transitions, 207 flow [2022-07-13 02:24:55,929 INFO L129 PetriNetUnfolder]: 0/100 cut-off events. [2022-07-13 02:24:55,932 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 02:24:55,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 0/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-07-13 02:24:55,937 INFO L116 LiptonReduction]: Number of co-enabled transitions 756 [2022-07-13 02:25:39,068 INFO L131 LiptonReduction]: Checked pairs total: 1340 [2022-07-13 02:25:39,068 INFO L133 LiptonReduction]: Total number of compositions: 93 [2022-07-13 02:25:39,074 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 18 transitions, 41 flow [2022-07-13 02:25:39,086 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 42 states, 37 states have (on average 1.837837837837838) internal successors, (68), 41 states have internal predecessors, (68), 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) [2022-07-13 02:25:39,097 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:25:39,101 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@20a074b9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4e637b13 [2022-07-13 02:25:39,101 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-07-13 02:25:39,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 37 states have (on average 1.837837837837838) internal successors, (68), 41 states have internal predecessors, (68), 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) [2022-07-13 02:25:39,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-13 02:25:39,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:25:39,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-13 02:25:39,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:25:39,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:25:39,110 INFO L85 PathProgramCache]: Analyzing trace with hash 349614, now seen corresponding path program 1 times [2022-07-13 02:25:39,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:25:39,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423754006] [2022-07-13 02:25:39,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:25:39,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:25:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:25:39,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:25:39,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:25:39,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423754006] [2022-07-13 02:25:39,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423754006] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:25:39,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:25:39,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:25:39,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133188181] [2022-07-13 02:25:39,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:25:39,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:25:39,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:25:39,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:25:39,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:25:39,327 INFO L87 Difference]: Start difference. First operand has 42 states, 37 states have (on average 1.837837837837838) internal successors, (68), 41 states have internal predecessors, (68), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-13 02:25:39,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:25:39,367 INFO L93 Difference]: Finished difference Result 38 states and 61 transitions. [2022-07-13 02:25:39,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:25:39,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-07-13 02:25:39,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:25:39,374 INFO L225 Difference]: With dead ends: 38 [2022-07-13 02:25:39,374 INFO L226 Difference]: Without dead ends: 34 [2022-07-13 02:25:39,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:25:39,377 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:25:39,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:25:39,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-07-13 02:25:39,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-07-13 02:25:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 33 states have internal predecessors, (54), 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) [2022-07-13 02:25:39,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 54 transitions. [2022-07-13 02:25:39,404 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 54 transitions. Word has length 3 [2022-07-13 02:25:39,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:25:39,404 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 54 transitions. [2022-07-13 02:25:39,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-13 02:25:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2022-07-13 02:25:39,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-13 02:25:39,405 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:25:39,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-13 02:25:39,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:25:39,406 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:25:39,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:25:39,407 INFO L85 PathProgramCache]: Analyzing trace with hash 349615, now seen corresponding path program 1 times [2022-07-13 02:25:39,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:25:39,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931441292] [2022-07-13 02:25:39,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:25:39,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:25:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:25:39,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:25:39,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:25:39,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931441292] [2022-07-13 02:25:39,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931441292] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:25:39,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:25:39,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:25:39,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459649192] [2022-07-13 02:25:39,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:25:39,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:25:39,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:25:39,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:25:39,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:25:39,466 INFO L87 Difference]: Start difference. First operand 34 states and 54 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-13 02:25:39,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:25:39,494 INFO L93 Difference]: Finished difference Result 31 states and 48 transitions. [2022-07-13 02:25:39,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:25:39,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-07-13 02:25:39,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:25:39,495 INFO L225 Difference]: With dead ends: 31 [2022-07-13 02:25:39,495 INFO L226 Difference]: Without dead ends: 31 [2022-07-13 02:25:39,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:25:39,496 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:25:39,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:25:39,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-13 02:25:39,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-07-13 02:25:39,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 30 states have internal predecessors, (48), 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) [2022-07-13 02:25:39,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 48 transitions. [2022-07-13 02:25:39,500 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 48 transitions. Word has length 3 [2022-07-13 02:25:39,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:25:39,500 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 48 transitions. [2022-07-13 02:25:39,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-13 02:25:39,500 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2022-07-13 02:25:39,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:25:39,501 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:25:39,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 02:25:39,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:25:39,501 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:25:39,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:25:39,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1824864930, now seen corresponding path program 1 times [2022-07-13 02:25:39,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:25:39,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931664859] [2022-07-13 02:25:39,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:25:39,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:25:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:25:39,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:25:39,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:25:39,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931664859] [2022-07-13 02:25:39,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931664859] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:25:39,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:25:39,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:25:39,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543077681] [2022-07-13 02:25:39,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:25:39,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:25:39,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:25:39,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:25:39,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:25:39,551 INFO L87 Difference]: Start difference. First operand 31 states and 48 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-07-13 02:25:39,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:25:39,600 INFO L93 Difference]: Finished difference Result 34 states and 50 transitions. [2022-07-13 02:25:39,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:25:39,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) Word has length 6 [2022-07-13 02:25:39,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:25:39,601 INFO L225 Difference]: With dead ends: 34 [2022-07-13 02:25:39,601 INFO L226 Difference]: Without dead ends: 34 [2022-07-13 02:25:39,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:25:39,602 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:25:39,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:25:39,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-07-13 02:25:39,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2022-07-13 02:25:39,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 29 states have internal predecessors, (47), 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) [2022-07-13 02:25:39,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 47 transitions. [2022-07-13 02:25:39,605 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 47 transitions. Word has length 6 [2022-07-13 02:25:39,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:25:39,606 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 47 transitions. [2022-07-13 02:25:39,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-07-13 02:25:39,606 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2022-07-13 02:25:39,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-13 02:25:39,606 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:25:39,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:25:39,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:25:39,607 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:25:39,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:25:39,614 INFO L85 PathProgramCache]: Analyzing trace with hash 732186716, now seen corresponding path program 1 times [2022-07-13 02:25:39,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:25:39,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350529683] [2022-07-13 02:25:39,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:25:39,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:25:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:25:39,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:25:39,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:25:39,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350529683] [2022-07-13 02:25:39,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350529683] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:25:39,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:25:39,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:25:39,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453065647] [2022-07-13 02:25:39,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:25:39,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:25:39,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:25:39,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:25:39,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:25:39,690 INFO L87 Difference]: Start difference. First operand 30 states and 47 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-13 02:25:39,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:25:39,719 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2022-07-13 02:25:39,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:25:39,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-07-13 02:25:39,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:25:39,720 INFO L225 Difference]: With dead ends: 24 [2022-07-13 02:25:39,721 INFO L226 Difference]: Without dead ends: 24 [2022-07-13 02:25:39,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:25:39,723 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:25:39,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:25:39,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-07-13 02:25:39,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-07-13 02:25:39,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 23 states have internal predecessors, (35), 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) [2022-07-13 02:25:39,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2022-07-13 02:25:39,728 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 35 transitions. Word has length 7 [2022-07-13 02:25:39,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:25:39,728 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 35 transitions. [2022-07-13 02:25:39,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-13 02:25:39,729 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-07-13 02:25:39,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 02:25:39,730 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:25:39,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:25:39,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 02:25:39,731 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:25:39,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:25:39,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1757024211, now seen corresponding path program 1 times [2022-07-13 02:25:39,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:25:39,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902830447] [2022-07-13 02:25:39,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:25:39,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:25:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:25:39,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:25:39,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:25:39,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902830447] [2022-07-13 02:25:39,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902830447] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:25:39,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:25:39,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:25:39,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097875686] [2022-07-13 02:25:39,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:25:39,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:25:39,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:25:39,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:25:39,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:25:39,774 INFO L87 Difference]: Start difference. First operand 24 states and 35 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-07-13 02:25:39,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:25:39,809 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2022-07-13 02:25:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:25:39,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2022-07-13 02:25:39,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:25:39,815 INFO L225 Difference]: With dead ends: 21 [2022-07-13 02:25:39,816 INFO L226 Difference]: Without dead ends: 21 [2022-07-13 02:25:39,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:25:39,818 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:25:39,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:25:39,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-07-13 02:25:39,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-07-13 02:25:39,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 20 states have internal predecessors, (25), 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) [2022-07-13 02:25:39,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-07-13 02:25:39,824 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 10 [2022-07-13 02:25:39,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:25:39,824 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-07-13 02:25:39,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-07-13 02:25:39,824 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-07-13 02:25:39,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 02:25:39,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:25:39,825 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:25:39,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 02:25:39,825 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:25:39,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:25:39,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1565110341, now seen corresponding path program 2 times [2022-07-13 02:25:39,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:25:39,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146269354] [2022-07-13 02:25:39,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:25:39,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:25:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:25:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:25:39,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:25:39,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146269354] [2022-07-13 02:25:39,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146269354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:25:39,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:25:39,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:25:39,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684151747] [2022-07-13 02:25:39,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:25:39,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:25:39,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:25:39,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:25:39,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:25:39,939 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-07-13 02:25:39,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:25:39,978 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2022-07-13 02:25:39,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:25:39,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) Word has length 10 [2022-07-13 02:25:39,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:25:39,980 INFO L225 Difference]: With dead ends: 19 [2022-07-13 02:25:39,980 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 02:25:39,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:25:39,981 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:25:39,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:25:39,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 02:25:39,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 02:25:39,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-07-13 02:25:39,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 02:25:39,982 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-07-13 02:25:39,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:25:39,982 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 02:25:39,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-07-13 02:25:39,983 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 02:25:39,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 02:25:39,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-07-13 02:25:39,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-07-13 02:25:39,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-07-13 02:25:39,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-07-13 02:25:39,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2022-07-13 02:25:39,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-07-13 02:25:39,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-07-13 02:25:39,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-07-13 02:25:39,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-07-13 02:25:39,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 02:25:39,988 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-07-13 02:25:39,992 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 02:25:39,992 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 02:25:39,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:25:39 BasicIcfg [2022-07-13 02:25:39,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 02:25:39,995 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 02:25:39,995 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 02:25:39,995 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 02:25:39,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:24:55" (3/4) ... [2022-07-13 02:25:39,997 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 02:25:40,003 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-13 02:25:40,009 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-07-13 02:25:40,010 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-13 02:25:40,010 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 02:25:40,030 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 02:25:40,030 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 02:25:40,031 INFO L158 Benchmark]: Toolchain (without parser) took 45165.07ms. Allocated memory was 88.1MB in the beginning and 136.3MB in the end (delta: 48.2MB). Free memory was 65.9MB in the beginning and 97.5MB in the end (delta: -31.5MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2022-07-13 02:25:40,031 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:25:40,031 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.45ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 65.8MB in the beginning and 58.6MB in the end (delta: 7.2MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2022-07-13 02:25:40,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.18ms. Allocated memory is still 113.2MB. Free memory was 58.6MB in the beginning and 55.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:25:40,032 INFO L158 Benchmark]: Boogie Preprocessor took 28.93ms. Allocated memory is still 113.2MB. Free memory was 55.8MB in the beginning and 54.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:25:40,032 INFO L158 Benchmark]: RCFGBuilder took 371.79ms. Allocated memory is still 113.2MB. Free memory was 54.2MB in the beginning and 80.2MB in the end (delta: -26.0MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2022-07-13 02:25:40,032 INFO L158 Benchmark]: TraceAbstraction took 44184.49ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 79.8MB in the beginning and 100.6MB in the end (delta: -20.8MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-07-13 02:25:40,033 INFO L158 Benchmark]: Witness Printer took 35.96ms. Allocated memory is still 136.3MB. Free memory was 100.6MB in the beginning and 97.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:25:40,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.45ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 65.8MB in the beginning and 58.6MB in the end (delta: 7.2MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.18ms. Allocated memory is still 113.2MB. Free memory was 58.6MB in the beginning and 55.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.93ms. Allocated memory is still 113.2MB. Free memory was 55.8MB in the beginning and 54.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 371.79ms. Allocated memory is still 113.2MB. Free memory was 54.2MB in the beginning and 80.2MB in the end (delta: -26.0MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * TraceAbstraction took 44184.49ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 79.8MB in the beginning and 100.6MB in the end (delta: -20.8MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Witness Printer took 35.96ms. Allocated memory is still 136.3MB. Free memory was 100.6MB in the beginning and 97.5MB in the end (delta: 3.1MB). 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: 43.2s, 105 PlacesBefore, 22 PlacesAfterwards, 101 TransitionsBefore, 18 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 7 FixpointIterations, 57 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 93 TotalNumberOfCompositions, 1340 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 862, positive: 712, positive conditional: 0, positive unconditional: 712, negative: 150, negative conditional: 0, negative unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 534, positive: 496, positive conditional: 0, positive unconditional: 496, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 534, positive: 486, positive conditional: 0, positive unconditional: 486, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 48, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , SemanticIndependenceRelation.Query Time [ms]: [ total: 32235, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 403, negative conditional: 0, negative unconditional: 403, unknown: 31806, unknown conditional: 0, unknown unconditional: 31806] ], Cache Queries: [ total: 862, positive: 216, positive conditional: 0, positive unconditional: 216, negative: 112, negative conditional: 0, negative unconditional: 112, unknown: 534, unknown conditional: 0, unknown unconditional: 534] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1237]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1237]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1240]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1240]: 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, 131 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 44.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 43.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 0 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 231 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-13 02:25:40,115 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