./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.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/05-lval_ls_13-idxunknown_lock.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 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:22:10,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:22:10,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:22:10,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:22:10,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:22:10,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:22:10,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:22:10,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:22:10,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:22:10,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:22:10,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:22:10,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:22:10,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:22:10,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:22:10,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:22:10,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:22:10,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:22:10,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:22:10,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:22:10,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:22:10,966 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:22:10,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:22:10,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:22:10,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:22:10,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:22:10,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:22:10,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:22:10,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:22:10,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:22:10,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:22:10,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:22:10,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:22:10,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:22:10,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:22:10,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:22:10,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:22:10,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:22:10,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:22:10,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:22:10,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:22:10,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:22:10,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:22:10,986 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:22:11,018 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:22:11,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:22:11,019 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:22:11,019 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:22:11,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:22:11,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:22:11,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:22:11,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:22:11,021 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:22:11,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:22:11,022 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:22:11,022 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:22:11,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:22:11,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:22:11,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:22:11,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:22:11,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:22:11,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:22:11,023 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:22:11,024 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:22:11,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:22:11,025 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:22:11,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:22:11,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:22:11,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:22:11,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:22:11,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:22:11,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:22:11,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:22:11,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:22:11,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:22:11,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:22:11,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:22:11,027 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f [2022-07-13 02:22:11,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:22:11,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:22:11,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:22:11,287 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:22:11,288 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:22:11,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2022-07-13 02:22:11,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddca1c792/20a1c4846a764dce96764e4e37c9b917/FLAGc18c3036a [2022-07-13 02:22:11,776 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:22:11,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2022-07-13 02:22:11,800 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddca1c792/20a1c4846a764dce96764e4e37c9b917/FLAGc18c3036a [2022-07-13 02:22:12,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddca1c792/20a1c4846a764dce96764e4e37c9b917 [2022-07-13 02:22:12,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:22:12,171 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:22:12,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:22:12,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:22:12,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:22:12,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:22:12" (1/1) ... [2022-07-13 02:22:12,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72367475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:12, skipping insertion in model container [2022-07-13 02:22:12,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:22:12" (1/1) ... [2022-07-13 02:22:12,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:22:12,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:22:12,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:22:12,508 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:22:12,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:22:12,571 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:22:12,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:12 WrapperNode [2022-07-13 02:22:12,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:22:12,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:22:12,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:22:12,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:22:12,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:12" (1/1) ... [2022-07-13 02:22:12,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:12" (1/1) ... [2022-07-13 02:22:12,618 INFO L137 Inliner]: procedures = 164, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2022-07-13 02:22:12,619 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:22:12,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:22:12,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:22:12,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:22:12,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:12" (1/1) ... [2022-07-13 02:22:12,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:12" (1/1) ... [2022-07-13 02:22:12,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:12" (1/1) ... [2022-07-13 02:22:12,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:12" (1/1) ... [2022-07-13 02:22:12,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:12" (1/1) ... [2022-07-13 02:22:12,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:12" (1/1) ... [2022-07-13 02:22:12,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:12" (1/1) ... [2022-07-13 02:22:12,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:22:12,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:22:12,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:22:12,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:22:12,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:12" (1/1) ... [2022-07-13 02:22:12,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:22:12,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:22:12,688 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 02:22:12,698 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 02:22:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 02:22:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:22:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 02:22:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:22:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:22:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 02:22:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 02:22:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:22:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:22:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:22:12,722 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 02:22:12,819 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:22:12,821 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:22:12,960 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:22:12,965 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:22:12,966 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 02:22:12,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:22:12 BoogieIcfgContainer [2022-07-13 02:22:12,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:22:12,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:22:12,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:22:12,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:22:12,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:22:12" (1/3) ... [2022-07-13 02:22:12,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1485d4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:22:12, skipping insertion in model container [2022-07-13 02:22:12,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:12" (2/3) ... [2022-07-13 02:22:12,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1485d4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:22:12, skipping insertion in model container [2022-07-13 02:22:12,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:22:12" (3/3) ... [2022-07-13 02:22:12,975 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_13-idxunknown_lock.i [2022-07-13 02:22:12,979 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 02:22:12,986 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:22:12,986 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-13 02:22:12,986 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 02:22:13,030 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-13 02:22:13,053 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:22:13,062 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 78 transitions, 161 flow [2022-07-13 02:22:13,064 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 78 transitions, 161 flow [2022-07-13 02:22:13,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 78 transitions, 161 flow [2022-07-13 02:22:13,091 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2022-07-13 02:22:13,092 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 02:22:13,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-07-13 02:22:13,095 INFO L116 LiptonReduction]: Number of co-enabled transitions 600 [2022-07-13 02:22:14,840 INFO L131 LiptonReduction]: Checked pairs total: 991 [2022-07-13 02:22:14,840 INFO L133 LiptonReduction]: Total number of compositions: 77 [2022-07-13 02:22:14,847 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 19 transitions, 43 flow [2022-07-13 02:22:14,858 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 48 states, 37 states have (on average 2.108108108108108) internal successors, (78), 47 states have internal predecessors, (78), 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 02:22:14,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:22:14,876 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@32d276df, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@505822da [2022-07-13 02:22:14,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-07-13 02:22:14,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 37 states have (on average 2.108108108108108) internal successors, (78), 47 states have internal predecessors, (78), 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 02:22:14,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:22:14,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:22:14,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:22:14,883 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)] === [2022-07-13 02:22:14,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:22:14,886 INFO L85 PathProgramCache]: Analyzing trace with hash 9141, now seen corresponding path program 1 times [2022-07-13 02:22:14,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:22:14,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843946449] [2022-07-13 02:22:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:22:14,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:22:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:22:15,000 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 02:22:15,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:22:15,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843946449] [2022-07-13 02:22:15,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843946449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:22:15,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:22:15,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:22:15,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314700549] [2022-07-13 02:22:15,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:22:15,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 02:22:15,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:22:15,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 02:22:15,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:22:15,028 INFO L87 Difference]: Start difference. First operand has 48 states, 37 states have (on average 2.108108108108108) internal successors, (78), 47 states have internal predecessors, (78), 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 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 02:22:15,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:22:15,058 INFO L93 Difference]: Finished difference Result 47 states and 77 transitions. [2022-07-13 02:22:15,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 02:22:15,060 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:22:15,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:22:15,066 INFO L225 Difference]: With dead ends: 47 [2022-07-13 02:22:15,066 INFO L226 Difference]: Without dead ends: 44 [2022-07-13 02:22:15,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:22:15,070 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:22:15,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:22:15,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-07-13 02:22:15,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-07-13 02:22:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 2.0285714285714285) internal successors, (71), 43 states have internal predecessors, (71), 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 02:22:15,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 71 transitions. [2022-07-13 02:22:15,101 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 71 transitions. Word has length 2 [2022-07-13 02:22:15,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:22:15,101 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 71 transitions. [2022-07-13 02:22:15,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 02:22:15,101 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2022-07-13 02:22:15,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:22:15,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:22:15,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:22:15,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:22:15,103 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:22:15,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:22:15,104 INFO L85 PathProgramCache]: Analyzing trace with hash 9151, now seen corresponding path program 1 times [2022-07-13 02:22:15,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:22:15,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648680530] [2022-07-13 02:22:15,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:22:15,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:22:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:22:15,183 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 02:22:15,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:22:15,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648680530] [2022-07-13 02:22:15,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648680530] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:22:15,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:22:15,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:22:15,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998685671] [2022-07-13 02:22:15,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:22:15,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:22:15,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:22:15,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:22:15,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:22:15,186 INFO L87 Difference]: Start difference. First operand 44 states and 71 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 02:22:15,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:22:15,212 INFO L93 Difference]: Finished difference Result 45 states and 72 transitions. [2022-07-13 02:22:15,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:22:15,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:22:15,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:22:15,214 INFO L225 Difference]: With dead ends: 45 [2022-07-13 02:22:15,214 INFO L226 Difference]: Without dead ends: 45 [2022-07-13 02:22:15,215 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 02:22:15,216 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:22:15,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:22:15,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-13 02:22:15,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-07-13 02:22:15,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 2.0) internal successors, (72), 44 states have internal predecessors, (72), 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 02:22:15,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 72 transitions. [2022-07-13 02:22:15,222 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 72 transitions. Word has length 2 [2022-07-13 02:22:15,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:22:15,222 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 72 transitions. [2022-07-13 02:22:15,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 02:22:15,223 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 72 transitions. [2022-07-13 02:22:15,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-13 02:22:15,223 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:22:15,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-13 02:22:15,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:22:15,224 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:22:15,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:22:15,225 INFO L85 PathProgramCache]: Analyzing trace with hash 284090, now seen corresponding path program 1 times [2022-07-13 02:22:15,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:22:15,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183423323] [2022-07-13 02:22:15,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:22:15,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:22:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:22:15,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:22:15,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:22:15,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183423323] [2022-07-13 02:22:15,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183423323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:22:15,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:22:15,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:22:15,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132217477] [2022-07-13 02:22:15,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:22:15,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:22:15,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:22:15,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:22:15,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:22:15,256 INFO L87 Difference]: Start difference. First operand 45 states and 72 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 02:22:15,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:22:15,276 INFO L93 Difference]: Finished difference Result 44 states and 71 transitions. [2022-07-13 02:22:15,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:22:15,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 02:22:15,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:22:15,277 INFO L225 Difference]: With dead ends: 44 [2022-07-13 02:22:15,277 INFO L226 Difference]: Without dead ends: 44 [2022-07-13 02:22:15,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 02:22:15,279 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:22:15,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:22:15,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-07-13 02:22:15,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-07-13 02:22:15,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.9722222222222223) internal successors, (71), 43 states have internal predecessors, (71), 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 02:22:15,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 71 transitions. [2022-07-13 02:22:15,284 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 71 transitions. Word has length 3 [2022-07-13 02:22:15,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:22:15,285 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 71 transitions. [2022-07-13 02:22:15,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 02:22:15,285 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 71 transitions. [2022-07-13 02:22:15,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 02:22:15,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:22:15,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-13 02:22:15,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:22:15,286 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:22:15,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:22:15,287 INFO L85 PathProgramCache]: Analyzing trace with hash 273024164, now seen corresponding path program 1 times [2022-07-13 02:22:15,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:22:15,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61409313] [2022-07-13 02:22:15,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:22:15,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:22:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:22:15,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:22:15,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:22:15,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61409313] [2022-07-13 02:22:15,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61409313] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:22:15,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901649668] [2022-07-13 02:22:15,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:22:15,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:22:15,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:22:15,331 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) [2022-07-13 02:22:15,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 02:22:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:22:15,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:22:15,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:22:15,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:22:15,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:22:15,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:22:15,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901649668] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:22:15,473 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:22:15,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-13 02:22:15,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416787965] [2022-07-13 02:22:15,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:22:15,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 02:22:15,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:22:15,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 02:22:15,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:22:15,475 INFO L87 Difference]: Start difference. First operand 44 states and 71 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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 02:22:15,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:22:15,498 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2022-07-13 02:22:15,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:22:15,498 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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 5 [2022-07-13 02:22:15,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:22:15,499 INFO L225 Difference]: With dead ends: 47 [2022-07-13 02:22:15,499 INFO L226 Difference]: Without dead ends: 47 [2022-07-13 02:22:15,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:22:15,500 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:22:15,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:22:15,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-07-13 02:22:15,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-07-13 02:22:15,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 39 states have (on average 1.8974358974358974) internal successors, (74), 46 states have internal predecessors, (74), 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 02:22:15,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 74 transitions. [2022-07-13 02:22:15,503 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 74 transitions. Word has length 5 [2022-07-13 02:22:15,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:22:15,503 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 74 transitions. [2022-07-13 02:22:15,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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 02:22:15,503 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 74 transitions. [2022-07-13 02:22:15,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 02:22:15,503 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:22:15,503 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2022-07-13 02:22:15,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 02:22:15,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:22:15,704 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:22:15,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:22:15,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1022239703, now seen corresponding path program 2 times [2022-07-13 02:22:15,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:22:15,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425763971] [2022-07-13 02:22:15,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:22:15,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:22:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:22:15,767 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:22:15,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:22:15,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425763971] [2022-07-13 02:22:15,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425763971] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:22:15,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57669733] [2022-07-13 02:22:15,768 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:22:15,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:22:15,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:22:15,773 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) [2022-07-13 02:22:15,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 02:22:15,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-13 02:22:15,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:22:15,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 02:22:15,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:22:15,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 02:22:15,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 12 [2022-07-13 02:22:15,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 02:22:15,962 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-07-13 02:22:15,979 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 02:22:15,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:22:15,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57669733] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:22:15,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:22:15,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2022-07-13 02:22:15,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561079313] [2022-07-13 02:22:15,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:22:15,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:22:15,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:22:15,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:22:15,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-13 02:22:15,981 INFO L87 Difference]: Start difference. First operand 47 states and 74 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 02:22:16,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:22:16,007 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2022-07-13 02:22:16,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:22:16,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 8 [2022-07-13 02:22:16,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:22:16,009 INFO L225 Difference]: With dead ends: 31 [2022-07-13 02:22:16,010 INFO L226 Difference]: Without dead ends: 31 [2022-07-13 02:22:16,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-13 02:22:16,010 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:22:16,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:22:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-07-13 02:22:16,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-07-13 02:22:16,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 30 states have internal predecessors, (42), 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 02:22:16,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2022-07-13 02:22:16,014 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 8 [2022-07-13 02:22:16,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:22:16,014 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2022-07-13 02:22:16,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 02:22:16,014 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2022-07-13 02:22:16,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:22:16,014 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:22:16,014 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:22:16,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 02:22:16,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:22:16,220 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:22:16,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:22:16,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2069478286, now seen corresponding path program 1 times [2022-07-13 02:22:16,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:22:16,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993003523] [2022-07-13 02:22:16,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:22:16,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:22:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:22:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:22:16,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:22:16,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993003523] [2022-07-13 02:22:16,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993003523] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:22:16,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250577274] [2022-07-13 02:22:16,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:22:16,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:22:16,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:22:16,292 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) [2022-07-13 02:22:16,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 02:22:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:22:16,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 02:22:16,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:22:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:22:16,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:22:16,404 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:22:16,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250577274] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:22:16,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:22:16,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-07-13 02:22:16,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322248259] [2022-07-13 02:22:16,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:22:16,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 02:22:16,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:22:16,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 02:22:16,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-13 02:22:16,407 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 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 02:22:16,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:22:16,444 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2022-07-13 02:22:16,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:22:16,445 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 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 11 [2022-07-13 02:22:16,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:22:16,446 INFO L225 Difference]: With dead ends: 37 [2022-07-13 02:22:16,446 INFO L226 Difference]: Without dead ends: 37 [2022-07-13 02:22:16,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-13 02:22:16,448 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:22:16,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:22:16,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-13 02:22:16,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-07-13 02:22:16,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 36 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 02:22:16,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2022-07-13 02:22:16,459 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2022-07-13 02:22:16,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:22:16,459 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2022-07-13 02:22:16,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 states have internal predecessors, (19), 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 02:22:16,460 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2022-07-13 02:22:16,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-13 02:22:16,460 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:22:16,460 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:22:16,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 02:22:16,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:22:16,677 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:22:16,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:22:16,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1526917486, now seen corresponding path program 2 times [2022-07-13 02:22:16,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:22:16,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139436384] [2022-07-13 02:22:16,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:22:16,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:22:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:22:16,743 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-13 02:22:16,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:22:16,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139436384] [2022-07-13 02:22:16,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139436384] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:22:16,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:22:16,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:22:16,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678121888] [2022-07-13 02:22:16,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:22:16,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:22:16,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:22:16,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:22:16,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:22:16,744 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 02:22:16,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:22:16,760 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2022-07-13 02:22:16,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:22:16,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 17 [2022-07-13 02:22:16,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:22:16,761 INFO L225 Difference]: With dead ends: 35 [2022-07-13 02:22:16,761 INFO L226 Difference]: Without dead ends: 35 [2022-07-13 02:22:16,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 02:22:16,761 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:22:16,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:22:16,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-07-13 02:22:16,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-07-13 02:22:16,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.40625) internal successors, (45), 34 states have internal predecessors, (45), 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 02:22:16,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2022-07-13 02:22:16,764 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 17 [2022-07-13 02:22:16,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:22:16,764 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 45 transitions. [2022-07-13 02:22:16,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 02:22:16,764 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2022-07-13 02:22:16,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 02:22:16,764 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:22:16,764 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:22:16,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 02:22:16,764 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:22:16,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:22:16,765 INFO L85 PathProgramCache]: Analyzing trace with hash 93120451, now seen corresponding path program 1 times [2022-07-13 02:22:16,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:22:16,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790951075] [2022-07-13 02:22:16,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:22:16,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:22:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:22:16,826 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-13 02:22:16,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:22:16,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790951075] [2022-07-13 02:22:16,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790951075] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:22:16,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:22:16,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:22:16,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662639625] [2022-07-13 02:22:16,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:22:16,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:22:16,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:22:16,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:22:16,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:22:16,828 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 02:22:16,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:22:16,864 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2022-07-13 02:22:16,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:22:16,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 18 [2022-07-13 02:22:16,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:22:16,865 INFO L225 Difference]: With dead ends: 33 [2022-07-13 02:22:16,865 INFO L226 Difference]: Without dead ends: 33 [2022-07-13 02:22:16,865 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 02:22:16,866 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:22:16,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:22:16,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-07-13 02:22:16,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-07-13 02:22:16,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 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 02:22:16,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2022-07-13 02:22:16,871 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 18 [2022-07-13 02:22:16,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:22:16,871 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2022-07-13 02:22:16,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 02:22:16,872 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2022-07-13 02:22:16,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 02:22:16,872 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:22:16,872 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:22:16,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 02:22:16,873 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:22:16,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:22:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash 93120444, now seen corresponding path program 1 times [2022-07-13 02:22:16,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:22:16,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324491531] [2022-07-13 02:22:16,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:22:16,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:22:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:22:16,965 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-13 02:22:16,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:22:16,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324491531] [2022-07-13 02:22:16,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324491531] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:22:16,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:22:16,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:22:16,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954003407] [2022-07-13 02:22:16,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:22:16,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 02:22:16,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:22:16,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 02:22:16,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:22:16,966 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 02:22:17,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:22:17,009 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2022-07-13 02:22:17,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:22:17,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 18 [2022-07-13 02:22:17,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:22:17,009 INFO L225 Difference]: With dead ends: 31 [2022-07-13 02:22:17,010 INFO L226 Difference]: Without dead ends: 25 [2022-07-13 02:22:17,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:22:17,010 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:22:17,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:22:17,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-07-13 02:22:17,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-07-13 02:22:17,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 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 02:22:17,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2022-07-13 02:22:17,012 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 18 [2022-07-13 02:22:17,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:22:17,012 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-07-13 02:22:17,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 02:22:17,012 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-07-13 02:22:17,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 02:22:17,012 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:22:17,012 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:22:17,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 02:22:17,013 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)] === [2022-07-13 02:22:17,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:22:17,013 INFO L85 PathProgramCache]: Analyzing trace with hash 92958615, now seen corresponding path program 1 times [2022-07-13 02:22:17,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:22:17,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577404373] [2022-07-13 02:22:17,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:22:17,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:22:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:22:17,066 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-13 02:22:17,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:22:17,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577404373] [2022-07-13 02:22:17,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577404373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:22:17,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:22:17,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:22:17,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813650310] [2022-07-13 02:22:17,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:22:17,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 02:22:17,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:22:17,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 02:22:17,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:22:17,067 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 02:22:17,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:22:17,088 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2022-07-13 02:22:17,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:22:17,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 18 [2022-07-13 02:22:17,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:22:17,088 INFO L225 Difference]: With dead ends: 23 [2022-07-13 02:22:17,089 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 02:22:17,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:22:17,089 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:22:17,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:22:17,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 02:22:17,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 02:22:17,090 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 02:22:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 02:22:17,091 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-07-13 02:22:17,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:22:17,091 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 02:22:17,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 02:22:17,091 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 02:22:17,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 02:22:17,095 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2022-07-13 02:22:17,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-07-13 02:22:17,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-07-13 02:22:17,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-07-13 02:22:17,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-07-13 02:22:17,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-07-13 02:22:17,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-07-13 02:22:17,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-07-13 02:22:17,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-07-13 02:22:17,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 02:22:17,099 INFO L356 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2022-07-13 02:22:17,104 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 02:22:17,104 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 02:22:17,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:22:17 BasicIcfg [2022-07-13 02:22:17,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 02:22:17,108 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 02:22:17,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 02:22:17,108 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 02:22:17,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:22:12" (3/4) ... [2022-07-13 02:22:17,110 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 02:22:17,116 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-13 02:22:17,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-07-13 02:22:17,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-13 02:22:17,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 02:22:17,152 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 02:22:17,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 02:22:17,153 INFO L158 Benchmark]: Toolchain (without parser) took 4982.06ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 81.3MB in the beginning and 68.9MB in the end (delta: 12.4MB). Peak memory consumption was 81.9MB. Max. memory is 16.1GB. [2022-07-13 02:22:17,153 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:22:17,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.35ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 81.1MB in the beginning and 148.2MB in the end (delta: -67.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 02:22:17,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.43ms. Allocated memory is still 182.5MB. Free memory was 148.2MB in the beginning and 146.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:22:17,156 INFO L158 Benchmark]: Boogie Preprocessor took 39.80ms. Allocated memory is still 182.5MB. Free memory was 146.1MB in the beginning and 144.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:22:17,156 INFO L158 Benchmark]: RCFGBuilder took 306.94ms. Allocated memory is still 182.5MB. Free memory was 144.5MB in the beginning and 132.5MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 02:22:17,157 INFO L158 Benchmark]: TraceAbstraction took 4138.27ms. Allocated memory is still 182.5MB. Free memory was 132.0MB in the beginning and 71.0MB in the end (delta: 61.0MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2022-07-13 02:22:17,157 INFO L158 Benchmark]: Witness Printer took 44.68ms. Allocated memory is still 182.5MB. Free memory was 71.0MB in the beginning and 68.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:22:17,158 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.35ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 81.1MB in the beginning and 148.2MB in the end (delta: -67.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.43ms. Allocated memory is still 182.5MB. Free memory was 148.2MB in the beginning and 146.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.80ms. Allocated memory is still 182.5MB. Free memory was 146.1MB in the beginning and 144.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.94ms. Allocated memory is still 182.5MB. Free memory was 144.5MB in the beginning and 132.5MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4138.27ms. Allocated memory is still 182.5MB. Free memory was 132.0MB in the beginning and 71.0MB in the end (delta: 61.0MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. * Witness Printer took 44.68ms. Allocated memory is still 182.5MB. Free memory was 71.0MB in the beginning and 68.9MB 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: 1.8s, 79 PlacesBefore, 22 PlacesAfterwards, 78 TransitionsBefore, 19 TransitionsAfterwards, 600 CoEnabledTransitionPairs, 5 FixpointIterations, 39 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 77 TotalNumberOfCompositions, 991 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 650, positive: 568, positive conditional: 0, positive unconditional: 568, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 406, positive: 382, positive conditional: 0, positive unconditional: 382, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 406, positive: 378, positive conditional: 0, positive unconditional: 378, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 74, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 650, positive: 186, positive conditional: 0, positive unconditional: 186, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 406, unknown conditional: 0, unknown unconditional: 406] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - 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: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: 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, 93 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 57 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 313 IncrementalHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 0 mSDtfsCounter, 313 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 48, 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 126 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 127 ConstructedInterpolants, 0 QuantifiedInterpolants, 864 SizeOfPredicates, 3 NumberOfNonLiveVariables, 301 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 231/274 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! [2022-07-13 02:22:17,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE