./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.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_923c2412-a134-43c0-8b52-36e1d44566f2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/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 6c09c2a46ed7454ea61f3b2ddb99e3e2ba9fd4da ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 02:31:38,356 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 02:31:38,357 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 02:31:38,363 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 02:31:38,363 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 02:31:38,364 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 02:31:38,365 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 02:31:38,365 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 02:31:38,366 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 02:31:38,367 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 02:31:38,367 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 02:31:38,367 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 02:31:38,368 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 02:31:38,368 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 02:31:38,369 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 02:31:38,369 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 02:31:38,370 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 02:31:38,371 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 02:31:38,372 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 02:31:38,372 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 02:31:38,373 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 02:31:38,374 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 02:31:38,375 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 02:31:38,375 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 02:31:38,375 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 02:31:38,375 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 02:31:38,376 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 02:31:38,376 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 02:31:38,377 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 02:31:38,377 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 02:31:38,377 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 02:31:38,378 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 02:31:38,378 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 02:31:38,378 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 02:31:38,379 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 02:31:38,379 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 02:31:38,379 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-12-02 02:31:38,387 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 02:31:38,387 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 02:31:38,387 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 02:31:38,387 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 02:31:38,388 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 02:31:38,388 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 02:31:38,388 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 02:31:38,388 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 02:31:38,388 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 02:31:38,388 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 02:31:38,388 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 02:31:38,388 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 02:31:38,388 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 02:31:38,389 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 02:31:38,389 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-02 02:31:38,389 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 02:31:38,389 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 02:31:38,389 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 02:31:38,389 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 02:31:38,389 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 02:31:38,389 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 02:31:38,389 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 02:31:38,389 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 02:31:38,389 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 02:31:38,390 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 02:31:38,390 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 02:31:38,390 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 02:31:38,390 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 02:31:38,390 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 02:31:38,390 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_923c2412-a134-43c0-8b52-36e1d44566f2/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 -> 6c09c2a46ed7454ea61f3b2ddb99e3e2ba9fd4da [2018-12-02 02:31:38,407 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 02:31:38,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 02:31:38,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 02:31:38,417 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 02:31:38,417 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 02:31:38,417 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c [2018-12-02 02:31:38,454 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/bin-2019/uautomizer/data/e38b02dca/675bd2286dfb41338ddd11ed156ae6e2/FLAG6dc8443c1 [2018-12-02 02:31:38,839 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 02:31:38,840 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c [2018-12-02 02:31:38,843 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/bin-2019/uautomizer/data/e38b02dca/675bd2286dfb41338ddd11ed156ae6e2/FLAG6dc8443c1 [2018-12-02 02:31:38,851 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/bin-2019/uautomizer/data/e38b02dca/675bd2286dfb41338ddd11ed156ae6e2 [2018-12-02 02:31:38,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 02:31:38,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 02:31:38,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 02:31:38,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 02:31:38,856 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 02:31:38,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:31:38" (1/1) ... [2018-12-02 02:31:38,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd2551a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:38, skipping insertion in model container [2018-12-02 02:31:38,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:31:38" (1/1) ... [2018-12-02 02:31:38,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 02:31:38,875 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 02:31:38,955 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:31:38,958 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 02:31:38,966 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:31:38,974 INFO L195 MainTranslator]: Completed translation [2018-12-02 02:31:38,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:38 WrapperNode [2018-12-02 02:31:38,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 02:31:38,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 02:31:38,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 02:31:38,974 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 02:31:38,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:38" (1/1) ... [2018-12-02 02:31:38,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:38" (1/1) ... [2018-12-02 02:31:38,986 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 02:31:38,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 02:31:38,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 02:31:38,986 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 02:31:38,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:38" (1/1) ... [2018-12-02 02:31:38,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:38" (1/1) ... [2018-12-02 02:31:38,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:38" (1/1) ... [2018-12-02 02:31:38,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:38" (1/1) ... [2018-12-02 02:31:38,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:38" (1/1) ... [2018-12-02 02:31:38,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:38" (1/1) ... [2018-12-02 02:31:38,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:38" (1/1) ... [2018-12-02 02:31:38,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 02:31:38,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 02:31:38,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 02:31:38,998 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 02:31:38,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/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 [2018-12-02 02:31:39,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 02:31:39,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 02:31:39,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 02:31:39,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 02:31:39,064 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 02:31:39,064 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 02:31:39,152 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 02:31:39,152 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 02:31:39,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:31:39 BoogieIcfgContainer [2018-12-02 02:31:39,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 02:31:39,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 02:31:39,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 02:31:39,155 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 02:31:39,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:31:38" (1/3) ... [2018-12-02 02:31:39,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5611a2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:31:39, skipping insertion in model container [2018-12-02 02:31:39,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:31:38" (2/3) ... [2018-12-02 02:31:39,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5611a2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:31:39, skipping insertion in model container [2018-12-02 02:31:39,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:31:39" (3/3) ... [2018-12-02 02:31:39,157 INFO L112 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c [2018-12-02 02:31:39,164 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 02:31:39,168 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-02 02:31:39,178 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-02 02:31:39,195 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 02:31:39,196 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 02:31:39,196 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 02:31:39,196 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 02:31:39,196 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 02:31:39,196 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 02:31:39,196 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 02:31:39,196 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 02:31:39,196 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 02:31:39,207 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-02 02:31:39,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 02:31:39,210 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:31:39,210 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:31:39,212 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 02:31:39,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:31:39,215 INFO L82 PathProgramCache]: Analyzing trace with hash 350361843, now seen corresponding path program 1 times [2018-12-02 02:31:39,216 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:31:39,216 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:31:39,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:39,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:31:39,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:31:39,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:31:39,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:31:39,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 02:31:39,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 02:31:39,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 02:31:39,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 02:31:39,315 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2018-12-02 02:31:39,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:31:39,382 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2018-12-02 02:31:39,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 02:31:39,383 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-12-02 02:31:39,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:31:39,390 INFO L225 Difference]: With dead ends: 46 [2018-12-02 02:31:39,390 INFO L226 Difference]: Without dead ends: 28 [2018-12-02 02:31:39,392 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 02:31:39,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-12-02 02:31:39,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2018-12-02 02:31:39,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-02 02:31:39,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-12-02 02:31:39,412 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2018-12-02 02:31:39,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:31:39,412 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-12-02 02:31:39,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 02:31:39,412 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-02 02:31:39,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-02 02:31:39,412 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:31:39,413 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:31:39,413 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 02:31:39,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:31:39,413 INFO L82 PathProgramCache]: Analyzing trace with hash 350362035, now seen corresponding path program 1 times [2018-12-02 02:31:39,413 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:31:39,413 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:31:39,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:39,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:31:39,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:31:39,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:31:39,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:31:39,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 02:31:39,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 02:31:39,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 02:31:39,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 02:31:39,442 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2018-12-02 02:31:39,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:31:39,480 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2018-12-02 02:31:39,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 02:31:39,480 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-12-02 02:31:39,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:31:39,481 INFO L225 Difference]: With dead ends: 29 [2018-12-02 02:31:39,481 INFO L226 Difference]: Without dead ends: 27 [2018-12-02 02:31:39,482 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 02:31:39,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-02 02:31:39,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2018-12-02 02:31:39,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-02 02:31:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-12-02 02:31:39,485 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2018-12-02 02:31:39,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:31:39,485 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-12-02 02:31:39,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 02:31:39,486 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-02 02:31:39,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 02:31:39,486 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:31:39,486 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:31:39,486 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 02:31:39,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:31:39,487 INFO L82 PathProgramCache]: Analyzing trace with hash 865022446, now seen corresponding path program 1 times [2018-12-02 02:31:39,487 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:31:39,487 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:31:39,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:39,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:31:39,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:31:39,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:31:39,528 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:31:39,528 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/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 [2018-12-02 02:31:39,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:31:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:31:39,547 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:31:39,592 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:31:39,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 02:31:39,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-12-02 02:31:39,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 02:31:39,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 02:31:39,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-02 02:31:39,607 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 8 states. [2018-12-02 02:31:39,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:31:39,663 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-12-02 02:31:39,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 02:31:39,663 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-12-02 02:31:39,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:31:39,664 INFO L225 Difference]: With dead ends: 36 [2018-12-02 02:31:39,664 INFO L226 Difference]: Without dead ends: 35 [2018-12-02 02:31:39,664 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-12-02 02:31:39,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-12-02 02:31:39,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 21. [2018-12-02 02:31:39,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-02 02:31:39,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2018-12-02 02:31:39,668 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 13 [2018-12-02 02:31:39,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:31:39,668 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2018-12-02 02:31:39,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 02:31:39,669 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-12-02 02:31:39,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 02:31:39,669 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:31:39,669 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:31:39,669 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 02:31:39,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:31:39,670 INFO L82 PathProgramCache]: Analyzing trace with hash 865022638, now seen corresponding path program 1 times [2018-12-02 02:31:39,670 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:31:39,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:31:39,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:39,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:31:39,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:31:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:31:39,694 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:31:39,694 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/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 [2018-12-02 02:31:39,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:31:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:31:39,705 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:31:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:31:39,738 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 02:31:39,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-12-02 02:31:39,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 02:31:39,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 02:31:39,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 02:31:39,739 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 8 states. [2018-12-02 02:31:39,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:31:39,851 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-12-02 02:31:39,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-02 02:31:39,851 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-12-02 02:31:39,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:31:39,852 INFO L225 Difference]: With dead ends: 52 [2018-12-02 02:31:39,852 INFO L226 Difference]: Without dead ends: 51 [2018-12-02 02:31:39,852 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2018-12-02 02:31:39,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-02 02:31:39,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 35. [2018-12-02 02:31:39,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-02 02:31:39,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-12-02 02:31:39,857 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 13 [2018-12-02 02:31:39,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:31:39,857 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-12-02 02:31:39,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 02:31:39,858 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-12-02 02:31:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 02:31:39,858 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:31:39,858 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:31:39,858 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 02:31:39,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:31:39,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1042517224, now seen corresponding path program 1 times [2018-12-02 02:31:39,858 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:31:39,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:31:39,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:39,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:31:39,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:31:39,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:31:39,881 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:31:39,882 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/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 [2018-12-02 02:31:39,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:31:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:31:39,894 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:31:39,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:31:39,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 02:31:39,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2018-12-02 02:31:39,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 02:31:39,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 02:31:39,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-12-02 02:31:39,941 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand 7 states. [2018-12-02 02:31:39,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:31:39,976 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2018-12-02 02:31:39,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 02:31:39,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-12-02 02:31:39,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:31:39,976 INFO L225 Difference]: With dead ends: 35 [2018-12-02 02:31:39,976 INFO L226 Difference]: Without dead ends: 34 [2018-12-02 02:31:39,977 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-12-02 02:31:39,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-02 02:31:39,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2018-12-02 02:31:39,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-02 02:31:39,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2018-12-02 02:31:39,980 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 13 [2018-12-02 02:31:39,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:31:39,980 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2018-12-02 02:31:39,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 02:31:39,980 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2018-12-02 02:31:39,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-02 02:31:39,981 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:31:39,981 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:31:39,981 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 02:31:39,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:31:39,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1042517416, now seen corresponding path program 1 times [2018-12-02 02:31:39,981 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:31:39,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:31:39,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:39,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:31:39,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:31:40,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:31:40,002 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:31:40,002 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/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 [2018-12-02 02:31:40,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:31:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:31:40,014 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:31:40,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:31:40,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 02:31:40,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-12-02 02:31:40,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 02:31:40,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 02:31:40,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-02 02:31:40,051 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 8 states. [2018-12-02 02:31:40,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:31:40,096 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2018-12-02 02:31:40,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 02:31:40,096 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-12-02 02:31:40,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:31:40,097 INFO L225 Difference]: With dead ends: 47 [2018-12-02 02:31:40,097 INFO L226 Difference]: Without dead ends: 46 [2018-12-02 02:31:40,097 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-12-02 02:31:40,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-02 02:31:40,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 24. [2018-12-02 02:31:40,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-02 02:31:40,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2018-12-02 02:31:40,100 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 13 [2018-12-02 02:31:40,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:31:40,100 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2018-12-02 02:31:40,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 02:31:40,100 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-12-02 02:31:40,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 02:31:40,101 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:31:40,101 INFO L402 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:31:40,101 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 02:31:40,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:31:40,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1987862754, now seen corresponding path program 1 times [2018-12-02 02:31:40,101 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:31:40,102 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:31:40,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:40,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:31:40,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:31:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:31:40,135 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-02 02:31:40,135 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 02:31:40,136 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/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 [2018-12-02 02:31:40,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:31:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:31:40,148 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:31:40,184 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:31:40,198 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 02:31:40,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2018-12-02 02:31:40,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 02:31:40,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 02:31:40,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-12-02 02:31:40,199 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 11 states. [2018-12-02 02:31:40,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:31:40,381 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2018-12-02 02:31:40,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 02:31:40,381 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2018-12-02 02:31:40,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:31:40,382 INFO L225 Difference]: With dead ends: 45 [2018-12-02 02:31:40,382 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 02:31:40,382 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=168, Invalid=338, Unknown=0, NotChecked=0, Total=506 [2018-12-02 02:31:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 02:31:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 02:31:40,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 02:31:40,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 02:31:40,383 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-12-02 02:31:40,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:31:40,383 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 02:31:40,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 02:31:40,384 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 02:31:40,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 02:31:40,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 02:31:40,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:31:40,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:31:40,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:31:40,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 02:31:40,450 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-02 02:31:40,450 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 02:31:40,450 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 02:31:40,450 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 02:31:40,450 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 02:31:40,451 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 02:31:40,451 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-12-02 02:31:40,451 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 14 28) no Hoare annotation was computed. [2018-12-02 02:31:40,451 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-12-02 02:31:40,451 INFO L448 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-12-02 02:31:40,451 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-12-02 02:31:40,451 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-12-02 02:31:40,451 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 14 28) no Hoare annotation was computed. [2018-12-02 02:31:40,451 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-12-02 02:31:40,451 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-12-02 02:31:40,451 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 14 28) the Hoare annotation is: true [2018-12-02 02:31:40,451 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 24) no Hoare annotation was computed. [2018-12-02 02:31:40,451 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 26) no Hoare annotation was computed. [2018-12-02 02:31:40,451 INFO L444 ceAbstractionStarter]: At program point L20-2(lines 19 25) the Hoare annotation is: (and (<= 1 main_~y1~0) (<= 0 main_~y2~0) (<= main_~y2~0 2147483647) (<= main_~y1~0 2147483647)) [2018-12-02 02:31:40,451 INFO L448 ceAbstractionStarter]: For program point L18-1(lines 18 26) no Hoare annotation was computed. [2018-12-02 02:31:40,452 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-12-02 02:31:40,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:31:40 BoogieIcfgContainer [2018-12-02 02:31:40,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 02:31:40,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 02:31:40,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 02:31:40,459 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 02:31:40,460 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:31:39" (3/4) ... [2018-12-02 02:31:40,463 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 02:31:40,468 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 02:31:40,468 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 02:31:40,471 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 02:31:40,471 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 02:31:40,472 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 02:31:40,496 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_923c2412-a134-43c0-8b52-36e1d44566f2/bin-2019/uautomizer/witness.graphml [2018-12-02 02:31:40,496 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 02:31:40,496 INFO L168 Benchmark]: Toolchain (without parser) took 1643.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 961.4 MB in the beginning and 822.0 MB in the end (delta: 139.4 MB). Peak memory consumption was 231.7 MB. Max. memory is 11.5 GB. [2018-12-02 02:31:40,497 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:31:40,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 120.27 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 02:31:40,498 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.51 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:31:40,498 INFO L168 Benchmark]: Boogie Preprocessor took 11.44 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:31:40,498 INFO L168 Benchmark]: RCFGBuilder took 154.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -120.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-02 02:31:40,498 INFO L168 Benchmark]: TraceAbstraction took 1305.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 829.2 MB in the end (delta: 241.6 MB). Peak memory consumption was 241.6 MB. Max. memory is 11.5 GB. [2018-12-02 02:31:40,498 INFO L168 Benchmark]: Witness Printer took 36.94 ms. Allocated memory is still 1.1 GB. Free memory was 829.2 MB in the beginning and 822.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-12-02 02:31:40,500 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 120.27 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 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 11.51 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.44 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 154.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -120.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1305.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 829.2 MB in the end (delta: 241.6 MB). Peak memory consumption was 241.6 MB. Max. memory is 11.5 GB. * Witness Printer took 36.94 ms. Allocated memory is still 1.1 GB. Free memory was 829.2 MB in the beginning and 822.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((1 <= y1 && 0 <= y2) && y2 <= 2147483647) && y1 <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 4 error locations. SAFE Result, 1.2s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 181 SDslu, 126 SDs, 0 SdLazy, 430 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=4, 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 79 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 12 NumberOfFragments, 18 HoareAnnotationTreeSize, 5 FomulaSimplifications, 378 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 208 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 8104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 157 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 25/50 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...