./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer --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 64bit --witnessprinter.graph.data.programhash 9072a9376e1e28de1ef4dc11b7134f6f175023b7 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 12:18:39,315 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 12:18:39,316 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 12:18:39,324 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 12:18:39,324 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 12:18:39,325 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 12:18:39,326 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 12:18:39,327 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 12:18:39,328 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 12:18:39,329 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 12:18:39,329 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 12:18:39,330 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 12:18:39,330 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 12:18:39,331 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 12:18:39,332 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 12:18:39,332 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 12:18:39,333 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 12:18:39,334 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 12:18:39,335 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 12:18:39,337 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 12:18:39,337 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 12:18:39,338 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 12:18:39,340 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 12:18:39,340 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 12:18:39,340 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 12:18:39,341 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 12:18:39,341 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 12:18:39,342 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 12:18:39,343 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 12:18:39,343 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 12:18:39,344 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 12:18:39,344 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 12:18:39,344 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 12:18:39,344 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 12:18:39,345 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 12:18:39,345 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 12:18:39,346 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-12-09 12:18:39,356 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 12:18:39,356 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 12:18:39,356 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 12:18:39,356 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 12:18:39,357 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 12:18:39,357 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 12:18:39,357 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 12:18:39,357 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 12:18:39,357 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 12:18:39,358 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 12:18:39,358 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 12:18:39,358 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 12:18:39,358 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 12:18:39,358 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 12:18:39,358 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 12:18:39,358 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 12:18:39,358 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 12:18:39,358 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 12:18:39,359 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 12:18:39,359 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 12:18:39,359 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 12:18:39,359 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 12:18:39,359 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 12:18:39,359 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 12:18:39,359 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 12:18:39,359 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 12:18:39,360 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 12:18:39,360 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 12:18:39,360 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 12:18:39,360 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9072a9376e1e28de1ef4dc11b7134f6f175023b7 [2018-12-09 12:18:39,382 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 12:18:39,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 12:18:39,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 12:18:39,395 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 12:18:39,395 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 12:18:39,395 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-09 12:18:39,438 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/data/271eae054/285e5027168d4a3ab0a946d90025861e/FLAGc64fb02f2 [2018-12-09 12:18:39,823 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 12:18:39,824 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/sv-benchmarks/c/termination-crafted/MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-09 12:18:39,827 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/data/271eae054/285e5027168d4a3ab0a946d90025861e/FLAGc64fb02f2 [2018-12-09 12:18:39,835 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/data/271eae054/285e5027168d4a3ab0a946d90025861e [2018-12-09 12:18:39,837 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 12:18:39,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 12:18:39,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 12:18:39,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 12:18:39,840 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 12:18:39,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2486db8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39, skipping insertion in model container [2018-12-09 12:18:39,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 12:18:39,855 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 12:18:39,937 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:18:39,939 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 12:18:39,948 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:18:39,955 INFO L195 MainTranslator]: Completed translation [2018-12-09 12:18:39,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39 WrapperNode [2018-12-09 12:18:39,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 12:18:39,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 12:18:39,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 12:18:39,956 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 12:18:39,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 12:18:39,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 12:18:39,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 12:18:39,968 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 12:18:39,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... [2018-12-09 12:18:39,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 12:18:39,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 12:18:39,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 12:18:39,979 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 12:18:39,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 12:18:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 12:18:40,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 12:18:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-12-09 12:18:40,048 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-12-09 12:18:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-12-09 12:18:40,048 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-12-09 12:18:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 12:18:40,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 12:18:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 12:18:40,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 12:18:40,154 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 12:18:40,154 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 12:18:40,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:18:40 BoogieIcfgContainer [2018-12-09 12:18:40,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 12:18:40,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 12:18:40,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 12:18:40,156 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 12:18:40,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:18:39" (1/3) ... [2018-12-09 12:18:40,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1e5f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:18:40, skipping insertion in model container [2018-12-09 12:18:40,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:18:39" (2/3) ... [2018-12-09 12:18:40,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1e5f1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:18:40, skipping insertion in model container [2018-12-09 12:18:40,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:18:40" (3/3) ... [2018-12-09 12:18:40,158 INFO L112 eAbstractionObserver]: Analyzing ICFG MutualRecursion_1b_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-09 12:18:40,165 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 12:18:40,169 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-12-09 12:18:40,179 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-12-09 12:18:40,197 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 12:18:40,198 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 12:18:40,198 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 12:18:40,198 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 12:18:40,198 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 12:18:40,198 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 12:18:40,198 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 12:18:40,198 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 12:18:40,198 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 12:18:40,209 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-12-09 12:18:40,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 12:18:40,213 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:40,213 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:40,215 INFO L423 AbstractCegarLoop]: === Iteration 1 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:40,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:40,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1878681222, now seen corresponding path program 1 times [2018-12-09 12:18:40,219 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:40,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:40,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:40,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:18:40,319 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:40,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 12:18:40,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 12:18:40,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 12:18:40,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 12:18:40,330 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 5 states. [2018-12-09 12:18:40,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:40,394 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2018-12-09 12:18:40,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 12:18:40,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-09 12:18:40,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:40,401 INFO L225 Difference]: With dead ends: 69 [2018-12-09 12:18:40,401 INFO L226 Difference]: Without dead ends: 60 [2018-12-09 12:18:40,403 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 12:18:40,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-12-09 12:18:40,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2018-12-09 12:18:40,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-09 12:18:40,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2018-12-09 12:18:40,430 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 9 [2018-12-09 12:18:40,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:40,430 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2018-12-09 12:18:40,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 12:18:40,431 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2018-12-09 12:18:40,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 12:18:40,431 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:40,431 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:40,432 INFO L423 AbstractCegarLoop]: === Iteration 2 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:40,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:40,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1890424319, now seen corresponding path program 1 times [2018-12-09 12:18:40,432 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:40,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:40,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:40,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:18:40,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:40,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 12:18:40,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 12:18:40,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 12:18:40,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 12:18:40,450 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand 3 states. [2018-12-09 12:18:40,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:40,465 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-12-09 12:18:40,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 12:18:40,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-09 12:18:40,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:40,467 INFO L225 Difference]: With dead ends: 56 [2018-12-09 12:18:40,467 INFO L226 Difference]: Without dead ends: 54 [2018-12-09 12:18:40,468 INFO L631 BasicCegarLoop]: 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 [2018-12-09 12:18:40,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-09 12:18:40,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-12-09 12:18:40,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-09 12:18:40,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2018-12-09 12:18:40,475 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 10 [2018-12-09 12:18:40,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:40,475 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2018-12-09 12:18:40,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 12:18:40,476 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2018-12-09 12:18:40,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 12:18:40,476 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:40,476 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:40,477 INFO L423 AbstractCegarLoop]: === Iteration 3 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:40,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:40,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1814880932, now seen corresponding path program 1 times [2018-12-09 12:18:40,477 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:40,477 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:40,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:40,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:18:40,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:40,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 12:18:40,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 12:18:40,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 12:18:40,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 12:18:40,523 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand 7 states. [2018-12-09 12:18:40,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:40,598 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2018-12-09 12:18:40,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 12:18:40,599 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-12-09 12:18:40,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:40,600 INFO L225 Difference]: With dead ends: 71 [2018-12-09 12:18:40,600 INFO L226 Difference]: Without dead ends: 69 [2018-12-09 12:18:40,600 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 12:18:40,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-12-09 12:18:40,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2018-12-09 12:18:40,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-12-09 12:18:40,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2018-12-09 12:18:40,606 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 17 [2018-12-09 12:18:40,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:40,606 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2018-12-09 12:18:40,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 12:18:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2018-12-09 12:18:40,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 12:18:40,607 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:40,607 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:40,607 INFO L423 AbstractCegarLoop]: === Iteration 4 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:40,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:40,607 INFO L82 PathProgramCache]: Analyzing trace with hash -2069922715, now seen corresponding path program 1 times [2018-12-09 12:18:40,608 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:40,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:40,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:40,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 12:18:40,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:40,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 12:18:40,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 12:18:40,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 12:18:40,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 12:18:40,631 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand 5 states. [2018-12-09 12:18:40,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:40,668 INFO L93 Difference]: Finished difference Result 81 states and 100 transitions. [2018-12-09 12:18:40,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 12:18:40,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-12-09 12:18:40,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:40,669 INFO L225 Difference]: With dead ends: 81 [2018-12-09 12:18:40,669 INFO L226 Difference]: Without dead ends: 80 [2018-12-09 12:18:40,669 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 12:18:40,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-12-09 12:18:40,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 69. [2018-12-09 12:18:40,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-12-09 12:18:40,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2018-12-09 12:18:40,675 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 20 [2018-12-09 12:18:40,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:40,676 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2018-12-09 12:18:40,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 12:18:40,676 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2018-12-09 12:18:40,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 12:18:40,676 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:40,676 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:40,677 INFO L423 AbstractCegarLoop]: === Iteration 5 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:40,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:40,677 INFO L82 PathProgramCache]: Analyzing trace with hash 256905316, now seen corresponding path program 1 times [2018-12-09 12:18:40,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:40,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:40,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:40,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 12:18:40,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:40,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 12:18:40,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 12:18:40,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 12:18:40,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 12:18:40,691 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand 3 states. [2018-12-09 12:18:40,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:40,699 INFO L93 Difference]: Finished difference Result 71 states and 87 transitions. [2018-12-09 12:18:40,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 12:18:40,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-12-09 12:18:40,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:40,700 INFO L225 Difference]: With dead ends: 71 [2018-12-09 12:18:40,700 INFO L226 Difference]: Without dead ends: 70 [2018-12-09 12:18:40,701 INFO L631 BasicCegarLoop]: 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 [2018-12-09 12:18:40,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-12-09 12:18:40,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2018-12-09 12:18:40,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-12-09 12:18:40,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2018-12-09 12:18:40,706 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 21 [2018-12-09 12:18:40,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:40,707 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2018-12-09 12:18:40,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 12:18:40,707 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2018-12-09 12:18:40,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 12:18:40,708 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:40,708 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:40,708 INFO L423 AbstractCegarLoop]: === Iteration 6 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:40,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:40,708 INFO L82 PathProgramCache]: Analyzing trace with hash -831628633, now seen corresponding path program 1 times [2018-12-09 12:18:40,708 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:40,709 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:40,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:40,730 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 12:18:40,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:40,731 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 12:18:40,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 12:18:40,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 12:18:40,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 12:18:40,731 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand 5 states. [2018-12-09 12:18:40,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:40,766 INFO L93 Difference]: Finished difference Result 127 states and 161 transitions. [2018-12-09 12:18:40,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 12:18:40,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-12-09 12:18:40,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:40,767 INFO L225 Difference]: With dead ends: 127 [2018-12-09 12:18:40,767 INFO L226 Difference]: Without dead ends: 66 [2018-12-09 12:18:40,768 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 12:18:40,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-12-09 12:18:40,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2018-12-09 12:18:40,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-12-09 12:18:40,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2018-12-09 12:18:40,772 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 25 [2018-12-09 12:18:40,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:40,772 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2018-12-09 12:18:40,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 12:18:40,773 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2018-12-09 12:18:40,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 12:18:40,773 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:40,773 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:40,773 INFO L423 AbstractCegarLoop]: === Iteration 7 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:40,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:40,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1630439354, now seen corresponding path program 1 times [2018-12-09 12:18:40,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:40,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:40,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:40,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 12:18:40,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:40,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 12:18:40,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 12:18:40,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 12:18:40,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 12:18:40,794 INFO L87 Difference]: Start difference. First operand 64 states and 73 transitions. Second operand 5 states. [2018-12-09 12:18:40,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:40,813 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2018-12-09 12:18:40,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 12:18:40,813 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-12-09 12:18:40,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:40,814 INFO L225 Difference]: With dead ends: 76 [2018-12-09 12:18:40,814 INFO L226 Difference]: Without dead ends: 75 [2018-12-09 12:18:40,814 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 12:18:40,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-12-09 12:18:40,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-12-09 12:18:40,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-09 12:18:40,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 86 transitions. [2018-12-09 12:18:40,818 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 86 transitions. Word has length 25 [2018-12-09 12:18:40,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:40,819 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 86 transitions. [2018-12-09 12:18:40,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 12:18:40,819 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 86 transitions. [2018-12-09 12:18:40,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 12:18:40,819 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:40,819 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:40,819 INFO L423 AbstractCegarLoop]: === Iteration 8 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:40,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:40,820 INFO L82 PathProgramCache]: Analyzing trace with hash -995987509, now seen corresponding path program 1 times [2018-12-09 12:18:40,820 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:40,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:40,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 12:18:40,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:40,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 12:18:40,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 12:18:40,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 12:18:40,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 12:18:40,839 INFO L87 Difference]: Start difference. First operand 72 states and 86 transitions. Second operand 5 states. [2018-12-09 12:18:40,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:40,860 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2018-12-09 12:18:40,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 12:18:40,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-12-09 12:18:40,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:40,861 INFO L225 Difference]: With dead ends: 79 [2018-12-09 12:18:40,861 INFO L226 Difference]: Without dead ends: 75 [2018-12-09 12:18:40,861 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 12:18:40,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-12-09 12:18:40,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2018-12-09 12:18:40,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-09 12:18:40,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 85 transitions. [2018-12-09 12:18:40,865 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 85 transitions. Word has length 26 [2018-12-09 12:18:40,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:40,866 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 85 transitions. [2018-12-09 12:18:40,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 12:18:40,866 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 85 transitions. [2018-12-09 12:18:40,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-12-09 12:18:40,866 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:40,867 INFO L402 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:40,867 INFO L423 AbstractCegarLoop]: === Iteration 9 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:40,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:40,867 INFO L82 PathProgramCache]: Analyzing trace with hash 2013265909, now seen corresponding path program 1 times [2018-12-09 12:18:40,867 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:40,867 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:40,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:40,894 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-09 12:18:40,895 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:18:40,895 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 12:18:40,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:40,919 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:18:40,936 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-09 12:18:40,951 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 12:18:40,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-12-09 12:18:40,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 12:18:40,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 12:18:40,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 12:18:40,952 INFO L87 Difference]: Start difference. First operand 72 states and 85 transitions. Second operand 5 states. [2018-12-09 12:18:40,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:40,989 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2018-12-09 12:18:40,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 12:18:40,989 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2018-12-09 12:18:40,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:40,990 INFO L225 Difference]: With dead ends: 89 [2018-12-09 12:18:40,990 INFO L226 Difference]: Without dead ends: 88 [2018-12-09 12:18:40,990 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 12:18:40,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-12-09 12:18:40,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2018-12-09 12:18:40,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-12-09 12:18:40,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 98 transitions. [2018-12-09 12:18:40,995 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 98 transitions. Word has length 54 [2018-12-09 12:18:40,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:40,996 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 98 transitions. [2018-12-09 12:18:40,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 12:18:40,996 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 98 transitions. [2018-12-09 12:18:40,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 12:18:40,996 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:40,996 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:40,997 INFO L423 AbstractCegarLoop]: === Iteration 10 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:40,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:40,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1986621902, now seen corresponding path program 2 times [2018-12-09 12:18:40,997 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:40,997 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:40,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:40,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:40,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:41,029 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-12-09 12:18:41,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:41,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 12:18:41,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 12:18:41,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 12:18:41,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 12:18:41,030 INFO L87 Difference]: Start difference. First operand 84 states and 98 transitions. Second operand 7 states. [2018-12-09 12:18:41,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:41,109 INFO L93 Difference]: Finished difference Result 134 states and 173 transitions. [2018-12-09 12:18:41,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 12:18:41,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2018-12-09 12:18:41,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:41,111 INFO L225 Difference]: With dead ends: 134 [2018-12-09 12:18:41,111 INFO L226 Difference]: Without dead ends: 133 [2018-12-09 12:18:41,112 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-12-09 12:18:41,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-12-09 12:18:41,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 97. [2018-12-09 12:18:41,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-12-09 12:18:41,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 118 transitions. [2018-12-09 12:18:41,122 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 118 transitions. Word has length 46 [2018-12-09 12:18:41,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:41,123 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 118 transitions. [2018-12-09 12:18:41,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 12:18:41,123 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 118 transitions. [2018-12-09 12:18:41,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 12:18:41,124 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:41,124 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:41,124 INFO L423 AbstractCegarLoop]: === Iteration 11 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:41,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:41,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1532753995, now seen corresponding path program 1 times [2018-12-09 12:18:41,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:41,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:41,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:41,126 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 12:18:41,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:41,151 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-12-09 12:18:41,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:18:41,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 12:18:41,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 12:18:41,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 12:18:41,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 12:18:41,153 INFO L87 Difference]: Start difference. First operand 97 states and 118 transitions. Second operand 5 states. [2018-12-09 12:18:41,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:41,180 INFO L93 Difference]: Finished difference Result 99 states and 118 transitions. [2018-12-09 12:18:41,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 12:18:41,180 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2018-12-09 12:18:41,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:41,181 INFO L225 Difference]: With dead ends: 99 [2018-12-09 12:18:41,181 INFO L226 Difference]: Without dead ends: 98 [2018-12-09 12:18:41,181 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 12:18:41,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-12-09 12:18:41,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2018-12-09 12:18:41,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-12-09 12:18:41,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 117 transitions. [2018-12-09 12:18:41,186 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 117 transitions. Word has length 51 [2018-12-09 12:18:41,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:41,186 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 117 transitions. [2018-12-09 12:18:41,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 12:18:41,186 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2018-12-09 12:18:41,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 12:18:41,187 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:41,187 INFO L402 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:41,188 INFO L423 AbstractCegarLoop]: === Iteration 12 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:41,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:41,188 INFO L82 PathProgramCache]: Analyzing trace with hash 859454554, now seen corresponding path program 1 times [2018-12-09 12:18:41,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:41,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:41,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:41,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:41,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:41,231 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-12-09 12:18:41,232 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:18:41,232 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 12:18:41,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:41,250 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:18:41,277 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-12-09 12:18:41,291 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 12:18:41,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-12-09 12:18:41,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 12:18:41,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 12:18:41,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-12-09 12:18:41,292 INFO L87 Difference]: Start difference. First operand 96 states and 117 transitions. Second operand 10 states. [2018-12-09 12:18:41,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:41,349 INFO L93 Difference]: Finished difference Result 140 states and 173 transitions. [2018-12-09 12:18:41,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 12:18:41,349 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2018-12-09 12:18:41,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:41,350 INFO L225 Difference]: With dead ends: 140 [2018-12-09 12:18:41,350 INFO L226 Difference]: Without dead ends: 139 [2018-12-09 12:18:41,351 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-12-09 12:18:41,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-12-09 12:18:41,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 113. [2018-12-09 12:18:41,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-12-09 12:18:41,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 137 transitions. [2018-12-09 12:18:41,357 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 137 transitions. Word has length 64 [2018-12-09 12:18:41,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:41,357 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 137 transitions. [2018-12-09 12:18:41,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 12:18:41,358 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 137 transitions. [2018-12-09 12:18:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-09 12:18:41,358 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:41,358 INFO L402 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:41,359 INFO L423 AbstractCegarLoop]: === Iteration 13 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:41,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:41,359 INFO L82 PathProgramCache]: Analyzing trace with hash 873287445, now seen corresponding path program 1 times [2018-12-09 12:18:41,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:41,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:41,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:41,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:41,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:41,400 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-12-09 12:18:41,400 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:18:41,401 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 12:18:41,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:41,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:18:41,450 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-12-09 12:18:41,464 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 12:18:41,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-12-09 12:18:41,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 12:18:41,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 12:18:41,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-12-09 12:18:41,465 INFO L87 Difference]: Start difference. First operand 113 states and 137 transitions. Second operand 10 states. [2018-12-09 12:18:41,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:41,529 INFO L93 Difference]: Finished difference Result 139 states and 171 transitions. [2018-12-09 12:18:41,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 12:18:41,530 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2018-12-09 12:18:41,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:41,531 INFO L225 Difference]: With dead ends: 139 [2018-12-09 12:18:41,531 INFO L226 Difference]: Without dead ends: 138 [2018-12-09 12:18:41,532 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-12-09 12:18:41,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-12-09 12:18:41,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 115. [2018-12-09 12:18:41,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-12-09 12:18:41,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 139 transitions. [2018-12-09 12:18:41,540 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 139 transitions. Word has length 65 [2018-12-09 12:18:41,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:41,541 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 139 transitions. [2018-12-09 12:18:41,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 12:18:41,541 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 139 transitions. [2018-12-09 12:18:41,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-09 12:18:41,542 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:41,543 INFO L402 BasicCegarLoop]: trace histogram [7, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:41,543 INFO L423 AbstractCegarLoop]: === Iteration 14 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:41,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:41,543 INFO L82 PathProgramCache]: Analyzing trace with hash 616341595, now seen corresponding path program 1 times [2018-12-09 12:18:41,543 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:41,544 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:41,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:41,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:41,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2018-12-09 12:18:41,612 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:18:41,612 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 12:18:41,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:41,634 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:18:41,696 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 15 proven. 27 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-12-09 12:18:41,711 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 12:18:41,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 10 [2018-12-09 12:18:41,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 12:18:41,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 12:18:41,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-12-09 12:18:41,711 INFO L87 Difference]: Start difference. First operand 115 states and 139 transitions. Second operand 10 states. [2018-12-09 12:18:41,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:41,833 INFO L93 Difference]: Finished difference Result 231 states and 296 transitions. [2018-12-09 12:18:41,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 12:18:41,834 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2018-12-09 12:18:41,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:41,835 INFO L225 Difference]: With dead ends: 231 [2018-12-09 12:18:41,835 INFO L226 Difference]: Without dead ends: 123 [2018-12-09 12:18:41,836 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2018-12-09 12:18:41,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-12-09 12:18:41,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 118. [2018-12-09 12:18:41,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-12-09 12:18:41,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 139 transitions. [2018-12-09 12:18:41,842 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 139 transitions. Word has length 85 [2018-12-09 12:18:41,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:41,843 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 139 transitions. [2018-12-09 12:18:41,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 12:18:41,843 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 139 transitions. [2018-12-09 12:18:41,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-12-09 12:18:41,844 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:41,844 INFO L402 BasicCegarLoop]: trace histogram [13, 12, 10, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:41,844 INFO L423 AbstractCegarLoop]: === Iteration 15 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:41,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:41,845 INFO L82 PathProgramCache]: Analyzing trace with hash 2130808540, now seen corresponding path program 1 times [2018-12-09 12:18:41,845 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:41,845 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:41,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:41,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:41,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 115 proven. 96 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2018-12-09 12:18:41,929 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:18:41,929 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 12:18:41,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:41,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:18:42,016 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 163 proven. 115 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2018-12-09 12:18:42,030 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 12:18:42,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 13 [2018-12-09 12:18:42,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-09 12:18:42,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-09 12:18:42,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-12-09 12:18:42,031 INFO L87 Difference]: Start difference. First operand 118 states and 139 transitions. Second operand 13 states. [2018-12-09 12:18:42,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:42,230 INFO L93 Difference]: Finished difference Result 267 states and 346 transitions. [2018-12-09 12:18:42,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 12:18:42,230 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 168 [2018-12-09 12:18:42,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:42,231 INFO L225 Difference]: With dead ends: 267 [2018-12-09 12:18:42,231 INFO L226 Difference]: Without dead ends: 156 [2018-12-09 12:18:42,232 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2018-12-09 12:18:42,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-12-09 12:18:42,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 145. [2018-12-09 12:18:42,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-12-09 12:18:42,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 172 transitions. [2018-12-09 12:18:42,240 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 172 transitions. Word has length 168 [2018-12-09 12:18:42,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:42,241 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 172 transitions. [2018-12-09 12:18:42,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-09 12:18:42,241 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 172 transitions. [2018-12-09 12:18:42,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-12-09 12:18:42,245 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:42,245 INFO L402 BasicCegarLoop]: trace histogram [25, 23, 18, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 10, 10, 10, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:42,246 INFO L423 AbstractCegarLoop]: === Iteration 16 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:42,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:42,246 INFO L82 PathProgramCache]: Analyzing trace with hash 417747350, now seen corresponding path program 2 times [2018-12-09 12:18:42,246 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:42,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:42,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:42,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:42,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:42,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2096 backedges. 411 proven. 4 refuted. 0 times theorem prover too weak. 1681 trivial. 0 not checked. [2018-12-09 12:18:42,386 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:18:42,386 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 12:18:42,392 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-09 12:18:42,438 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-09 12:18:42,438 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 12:18:42,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:18:42,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2096 backedges. 864 proven. 276 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked. [2018-12-09 12:18:42,620 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 12:18:42,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14] total 22 [2018-12-09 12:18:42,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-12-09 12:18:42,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-12-09 12:18:42,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=414, Unknown=0, NotChecked=0, Total=462 [2018-12-09 12:18:42,621 INFO L87 Difference]: Start difference. First operand 145 states and 172 transitions. Second operand 22 states. [2018-12-09 12:18:43,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:43,269 INFO L93 Difference]: Finished difference Result 397 states and 531 transitions. [2018-12-09 12:18:43,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-12-09 12:18:43,269 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 309 [2018-12-09 12:18:43,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:43,272 INFO L225 Difference]: With dead ends: 397 [2018-12-09 12:18:43,272 INFO L226 Difference]: Without dead ends: 263 [2018-12-09 12:18:43,274 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 572 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=374, Invalid=2382, Unknown=0, NotChecked=0, Total=2756 [2018-12-09 12:18:43,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2018-12-09 12:18:43,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 237. [2018-12-09 12:18:43,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-12-09 12:18:43,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 293 transitions. [2018-12-09 12:18:43,287 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 293 transitions. Word has length 309 [2018-12-09 12:18:43,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:43,287 INFO L480 AbstractCegarLoop]: Abstraction has 237 states and 293 transitions. [2018-12-09 12:18:43,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-12-09 12:18:43,288 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 293 transitions. [2018-12-09 12:18:43,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-12-09 12:18:43,289 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:43,290 INFO L402 BasicCegarLoop]: trace histogram [14, 14, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:43,290 INFO L423 AbstractCegarLoop]: === Iteration 17 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:43,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:43,290 INFO L82 PathProgramCache]: Analyzing trace with hash -2045441298, now seen corresponding path program 1 times [2018-12-09 12:18:43,290 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:43,290 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:43,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:43,291 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 12:18:43,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:43,351 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 208 proven. 6 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2018-12-09 12:18:43,352 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:18:43,352 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 12:18:43,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:43,387 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:18:43,441 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 6 proven. 196 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2018-12-09 12:18:43,456 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 12:18:43,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2018-12-09 12:18:43,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-09 12:18:43,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-09 12:18:43,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-12-09 12:18:43,457 INFO L87 Difference]: Start difference. First operand 237 states and 293 transitions. Second operand 13 states. [2018-12-09 12:18:43,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:43,501 INFO L93 Difference]: Finished difference Result 237 states and 293 transitions. [2018-12-09 12:18:43,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 12:18:43,502 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 182 [2018-12-09 12:18:43,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:43,503 INFO L225 Difference]: With dead ends: 237 [2018-12-09 12:18:43,503 INFO L226 Difference]: Without dead ends: 232 [2018-12-09 12:18:43,503 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-12-09 12:18:43,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2018-12-09 12:18:43,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 220. [2018-12-09 12:18:43,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-12-09 12:18:43,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 268 transitions. [2018-12-09 12:18:43,514 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 268 transitions. Word has length 182 [2018-12-09 12:18:43,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:43,515 INFO L480 AbstractCegarLoop]: Abstraction has 220 states and 268 transitions. [2018-12-09 12:18:43,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-09 12:18:43,515 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 268 transitions. [2018-12-09 12:18:43,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-12-09 12:18:43,516 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:18:43,516 INFO L402 BasicCegarLoop]: trace histogram [16, 14, 11, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 12:18:43,516 INFO L423 AbstractCegarLoop]: === Iteration 18 === [fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 12:18:43,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:18:43,517 INFO L82 PathProgramCache]: Analyzing trace with hash 803401173, now seen corresponding path program 1 times [2018-12-09 12:18:43,517 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 12:18:43,517 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 12:18:43,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:43,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:43,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:18:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 14 proven. 111 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2018-12-09 12:18:43,584 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 12:18:43,584 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 12:18:43,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:18:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:18:43,615 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 12:18:43,677 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 14 proven. 132 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2018-12-09 12:18:43,691 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 12:18:43,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 13 [2018-12-09 12:18:43,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 12:18:43,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 12:18:43,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-12-09 12:18:43,693 INFO L87 Difference]: Start difference. First operand 220 states and 268 transitions. Second operand 14 states. [2018-12-09 12:18:43,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:18:43,791 INFO L93 Difference]: Finished difference Result 350 states and 431 transitions. [2018-12-09 12:18:43,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 12:18:43,791 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 202 [2018-12-09 12:18:43,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:18:43,791 INFO L225 Difference]: With dead ends: 350 [2018-12-09 12:18:43,791 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 12:18:43,792 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2018-12-09 12:18:43,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 12:18:43,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 12:18:43,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 12:18:43,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 12:18:43,793 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 202 [2018-12-09 12:18:43,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:18:43,793 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 12:18:43,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 12:18:43,793 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 12:18:43,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 12:18:43,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 12:18:43,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,850 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,866 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,902 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,942 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,943 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,967 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,972 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:43,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 12:18:44,271 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 20 [2018-12-09 12:18:44,274 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 12:18:44,274 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 12:18:44,274 INFO L448 ceAbstractionStarter]: For program point fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-12-09 12:18:44,275 INFO L448 ceAbstractionStarter]: For program point fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-12-09 12:18:44,275 INFO L448 ceAbstractionStarter]: For program point fFINAL(lines 11 15) no Hoare annotation was computed. [2018-12-09 12:18:44,275 INFO L448 ceAbstractionStarter]: For program point fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-12-09 12:18:44,275 INFO L444 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (or (and (<= f_~x |f_#in~x|) (<= |f_#in~x| f_~x) (<= 1 f_~x)) (< 2147483645 |f_#in~x|)) [2018-12-09 12:18:44,275 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2018-12-09 12:18:44,275 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-12-09 12:18:44,275 INFO L448 ceAbstractionStarter]: For program point fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-12-09 12:18:44,275 INFO L448 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-12-09 12:18:44,275 INFO L448 ceAbstractionStarter]: For program point L14-3(line 14) no Hoare annotation was computed. [2018-12-09 12:18:44,275 INFO L444 ceAbstractionStarter]: At program point L14-4(line 14) the Hoare annotation is: (or (< 2147483645 |f_#in~x|) (and (<= f_~x |f_#in~x|) (<= 0 |f_#t~ret0|) (<= |f_#in~x| f_~x) (<= |f_#t~ret0| 0) (<= 1 f_~x))) [2018-12-09 12:18:44,276 INFO L448 ceAbstractionStarter]: For program point L14-5(line 14) no Hoare annotation was computed. [2018-12-09 12:18:44,276 INFO L448 ceAbstractionStarter]: For program point L14-6(line 14) no Hoare annotation was computed. [2018-12-09 12:18:44,276 INFO L448 ceAbstractionStarter]: For program point fEXIT(lines 11 15) no Hoare annotation was computed. [2018-12-09 12:18:44,276 INFO L448 ceAbstractionStarter]: For program point L14-7(line 14) no Hoare annotation was computed. [2018-12-09 12:18:44,276 INFO L451 ceAbstractionStarter]: At program point fENTRY(lines 11 15) the Hoare annotation is: true [2018-12-09 12:18:44,276 INFO L448 ceAbstractionStarter]: For program point gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,276 INFO L448 ceAbstractionStarter]: For program point gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,276 INFO L448 ceAbstractionStarter]: For program point gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,276 INFO L448 ceAbstractionStarter]: For program point gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,276 INFO L448 ceAbstractionStarter]: For program point gFINAL(lines 17 21) no Hoare annotation was computed. [2018-12-09 12:18:44,276 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,276 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-12-09 12:18:44,276 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,277 INFO L444 ceAbstractionStarter]: At program point L20-2(line 20) the Hoare annotation is: (and (or (and (<= g_~x |g_#in~x|) (<= |g_#in~x| g_~x)) (< 2147483647 |g_#in~x|)) (or (< 2147483645 |g_#in~x|) (<= 1 g_~x))) [2018-12-09 12:18:44,277 INFO L448 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,277 INFO L448 ceAbstractionStarter]: For program point L20-4(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,277 INFO L448 ceAbstractionStarter]: For program point L20-5(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,277 INFO L444 ceAbstractionStarter]: At program point L20-6(line 20) the Hoare annotation is: (and (or (<= 1 g_~x) (< 2 |g_#in~x|)) (or (and (<= g_~x |g_#in~x|) (<= 0 |g_#t~ret2|) (<= |g_#in~x| g_~x) (<= |g_#t~ret2| 0)) (< 2147483647 |g_#in~x|))) [2018-12-09 12:18:44,277 INFO L448 ceAbstractionStarter]: For program point L20-7(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,277 INFO L448 ceAbstractionStarter]: For program point L20-8(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,277 INFO L448 ceAbstractionStarter]: For program point L20-9(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,277 INFO L448 ceAbstractionStarter]: For program point gEXIT(lines 17 21) no Hoare annotation was computed. [2018-12-09 12:18:44,277 INFO L448 ceAbstractionStarter]: For program point gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,277 INFO L451 ceAbstractionStarter]: At program point gENTRY(lines 17 21) the Hoare annotation is: true [2018-12-09 12:18:44,277 INFO L448 ceAbstractionStarter]: For program point gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-12-09 12:18:44,277 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 12:18:44,277 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 12:18:44,278 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 12:18:44,278 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 12:18:44,278 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 24 27) the Hoare annotation is: true [2018-12-09 12:18:44,278 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 24 27) no Hoare annotation was computed. [2018-12-09 12:18:44,278 INFO L444 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (<= main_~x~0 2147483647) [2018-12-09 12:18:44,278 INFO L448 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-12-09 12:18:44,278 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 24 27) no Hoare annotation was computed. [2018-12-09 12:18:44,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:18:44 BoogieIcfgContainer [2018-12-09 12:18:44,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 12:18:44,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 12:18:44,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 12:18:44,281 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 12:18:44,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:18:40" (3/4) ... [2018-12-09 12:18:44,284 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 12:18:44,289 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 12:18:44,289 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2018-12-09 12:18:44,290 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2018-12-09 12:18:44,290 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 12:18:44,294 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-09 12:18:44,294 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 12:18:44,294 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 12:18:44,329 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ce130098-cacb-4a9a-a568-f9ec46a1ec0c/bin-2019/uautomizer/witness.graphml [2018-12-09 12:18:44,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 12:18:44,329 INFO L168 Benchmark]: Toolchain (without parser) took 4492.32 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 311.4 MB). Free memory was 954.4 MB in the beginning and 949.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 316.4 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:44,330 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:18:44,330 INFO L168 Benchmark]: CACSL2BoogieTranslator took 117.85 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:44,330 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.63 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:18:44,331 INFO L168 Benchmark]: Boogie Preprocessor took 10.68 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:18:44,331 INFO L168 Benchmark]: RCFGBuilder took 175.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:44,331 INFO L168 Benchmark]: TraceAbstraction took 4125.73 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 179.8 MB). Free memory was 1.1 GB in the beginning and 957.5 MB in the end (delta: 153.9 MB). Peak memory consumption was 333.8 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:44,332 INFO L168 Benchmark]: Witness Printer took 48.34 ms. Allocated memory is still 1.3 GB. Free memory was 957.5 MB in the beginning and 949.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-09 12:18:44,333 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 117.85 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.63 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.68 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 175.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -167.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4125.73 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 179.8 MB). Free memory was 1.1 GB in the beginning and 957.5 MB in the end (delta: 153.9 MB). Peak memory consumption was 333.8 MB. Max. memory is 11.5 GB. * Witness Printer took 48.34 ms. Allocated memory is still 1.3 GB. Free memory was 957.5 MB in the beginning and 949.4 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 10 error locations. SAFE Result, 4.0s OverallTime, 18 OverallIterations, 25 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 629 SDtfs, 690 SDslu, 2390 SDs, 0 SdLazy, 2237 SolverSat, 263 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1315 GetRequests, 1139 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=237occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 178 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 311 PreInvPairs, 414 NumberOfFragments, 93 HoareAnnotationTreeSize, 311 FomulaSimplifications, 9137 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 11 FomulaSimplificationsInter, 3131 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 2508 NumberOfCodeBlocks, 2508 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2482 ConstructedInterpolants, 0 QuantifiedInterpolants, 636432 SizeOfPredicates, 22 NumberOfNonLiveVariables, 2221 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 26 InterpolantComputations, 10 PerfectInterpolantSequences, 7868/8937 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...