./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-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_aca87ee7-a5af-40b3-a862-a439ea6ff93f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/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 f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 01:41:36,843 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:41:36,845 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:41:36,853 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:41:36,853 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:41:36,853 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:41:36,854 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:41:36,856 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:41:36,857 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:41:36,857 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:41:36,858 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:41:36,858 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:41:36,859 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:41:36,859 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:41:36,860 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:41:36,861 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:41:36,861 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:41:36,863 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:41:36,864 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:41:36,865 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:41:36,866 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:41:36,867 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:41:36,868 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:41:36,869 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:41:36,869 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:41:36,869 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:41:36,870 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:41:36,871 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:41:36,871 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:41:36,872 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:41:36,872 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:41:36,873 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:41:36,873 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:41:36,873 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:41:36,874 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:41:36,874 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:41:36,874 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-12-09 01:41:36,884 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:41:36,884 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:41:36,885 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:41:36,885 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:41:36,886 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 01:41:36,886 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 01:41:36,886 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 01:41:36,886 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:41:36,886 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 01:41:36,886 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 01:41:36,887 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:41:36,887 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:41:36,887 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:41:36,887 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:41:36,887 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 01:41:36,887 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:41:36,887 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 01:41:36,887 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:41:36,887 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:41:36,888 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:41:36,888 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:41:36,888 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:41:36,888 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:41:36,888 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:41:36,888 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:41:36,888 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:41:36,888 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 01:41:36,888 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:41:36,888 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 01:41:36,889 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_aca87ee7-a5af-40b3-a862-a439ea6ff93f/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 -> f55c3c29f65baba8ba49ec35fe2e62008dfb74b3 [2018-12-09 01:41:36,910 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:41:36,916 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:41:36,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:41:36,919 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:41:36,919 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:41:36,920 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-12-09 01:41:36,952 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/bin-2019/uautomizer/data/28cad8a36/52c5a548c228437ca3e14a56c9e5b411/FLAG4926c1c4d [2018-12-09 01:41:37,336 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:41:37,337 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-12-09 01:41:37,340 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/bin-2019/uautomizer/data/28cad8a36/52c5a548c228437ca3e14a56c9e5b411/FLAG4926c1c4d [2018-12-09 01:41:37,349 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/bin-2019/uautomizer/data/28cad8a36/52c5a548c228437ca3e14a56c9e5b411 [2018-12-09 01:41:37,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:41:37,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:41:37,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:41:37,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:41:37,354 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:41:37,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:41:37" (1/1) ... [2018-12-09 01:41:37,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42aa496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:41:37, skipping insertion in model container [2018-12-09 01:41:37,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:41:37" (1/1) ... [2018-12-09 01:41:37,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:41:37,369 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:41:37,449 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:41:37,451 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:41:37,460 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:41:37,467 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:41:37,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:41:37 WrapperNode [2018-12-09 01:41:37,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:41:37,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:41:37,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:41:37,468 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:41:37,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:41:37" (1/1) ... [2018-12-09 01:41:37,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:41:37" (1/1) ... [2018-12-09 01:41:37,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:41:37,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:41:37,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:41:37,479 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:41:37,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:41:37" (1/1) ... [2018-12-09 01:41:37,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:41:37" (1/1) ... [2018-12-09 01:41:37,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:41:37" (1/1) ... [2018-12-09 01:41:37,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:41:37" (1/1) ... [2018-12-09 01:41:37,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:41:37" (1/1) ... [2018-12-09 01:41:37,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:41:37" (1/1) ... [2018-12-09 01:41:37,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:41:37" (1/1) ... [2018-12-09 01:41:37,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:41:37,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:41:37,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:41:37,491 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:41:37,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:41:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/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 01:41:37,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:41:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:41:37,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:41:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:41:37,550 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:41:37,550 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:41:37,631 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:41:37,632 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 01:41:37,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:41:37 BoogieIcfgContainer [2018-12-09 01:41:37,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:41:37,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:41:37,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:41:37,634 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:41:37,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:41:37" (1/3) ... [2018-12-09 01:41:37,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dc2db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:41:37, skipping insertion in model container [2018-12-09 01:41:37,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:41:37" (2/3) ... [2018-12-09 01:41:37,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dc2db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:41:37, skipping insertion in model container [2018-12-09 01:41:37,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:41:37" (3/3) ... [2018-12-09 01:41:37,636 INFO L112 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1-modified_false-termination_true-no-overflow.c [2018-12-09 01:41:37,641 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:41:37,645 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-09 01:41:37,654 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-09 01:41:37,670 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 01:41:37,670 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:41:37,670 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:41:37,670 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:41:37,670 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:41:37,670 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:41:37,670 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:41:37,671 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:41:37,671 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:41:37,680 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-09 01:41:37,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 01:41:37,683 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:41:37,683 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:41:37,685 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 01:41:37,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:41:37,688 INFO L82 PathProgramCache]: Analyzing trace with hash 350361843, now seen corresponding path program 1 times [2018-12-09 01:41:37,689 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 01:41:37,689 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 01:41:37,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:37,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:41:37,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:41:37,772 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 01:41:37,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:41:37,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 01:41:37,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 01:41:37,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 01:41:37,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 01:41:37,785 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2018-12-09 01:41:37,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:41:37,851 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-12-09 01:41:37,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 01:41:37,852 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-12-09 01:41:37,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:41:37,857 INFO L225 Difference]: With dead ends: 33 [2018-12-09 01:41:37,857 INFO L226 Difference]: Without dead ends: 18 [2018-12-09 01:41:37,859 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 [2018-12-09 01:41:37,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-09 01:41:37,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-09 01:41:37,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-09 01:41:37,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-12-09 01:41:37,879 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2018-12-09 01:41:37,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:41:37,879 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-12-09 01:41:37,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 01:41:37,880 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-09 01:41:37,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 01:41:37,880 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:41:37,880 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:41:37,880 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 01:41:37,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:41:37,880 INFO L82 PathProgramCache]: Analyzing trace with hash 350362035, now seen corresponding path program 1 times [2018-12-09 01:41:37,880 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 01:41:37,880 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 01:41:37,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:37,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:41:37,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:41:37,906 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 01:41:37,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:41:37,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 01:41:37,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 01:41:37,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 01:41:37,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 01:41:37,908 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2018-12-09 01:41:37,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:41:37,948 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-12-09 01:41:37,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 01:41:37,949 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-12-09 01:41:37,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:41:37,949 INFO L225 Difference]: With dead ends: 20 [2018-12-09 01:41:37,949 INFO L226 Difference]: Without dead ends: 18 [2018-12-09 01:41:37,950 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 [2018-12-09 01:41:37,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-09 01:41:37,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-09 01:41:37,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-09 01:41:37,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-12-09 01:41:37,954 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2018-12-09 01:41:37,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:41:37,954 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-12-09 01:41:37,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 01:41:37,954 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-09 01:41:37,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 01:41:37,955 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:41:37,955 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:41:37,955 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 01:41:37,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:41:37,955 INFO L82 PathProgramCache]: Analyzing trace with hash 865022446, now seen corresponding path program 1 times [2018-12-09 01:41:37,955 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 01:41:37,956 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 01:41:37,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:37,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:41:37,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:41:37,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:41:37,983 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:41:37,983 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/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 01:41:37,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:41:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:41:38,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:41:38,039 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 01:41:38,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 01:41:38,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-12-09 01:41:38,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 01:41:38,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 01:41:38,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-09 01:41:38,064 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 8 states. [2018-12-09 01:41:38,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:41:38,111 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2018-12-09 01:41:38,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 01:41:38,112 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-12-09 01:41:38,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:41:38,113 INFO L225 Difference]: With dead ends: 28 [2018-12-09 01:41:38,113 INFO L226 Difference]: Without dead ends: 27 [2018-12-09 01:41:38,114 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 [2018-12-09 01:41:38,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-09 01:41:38,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2018-12-09 01:41:38,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-09 01:41:38,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2018-12-09 01:41:38,117 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 13 [2018-12-09 01:41:38,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:41:38,117 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2018-12-09 01:41:38,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 01:41:38,117 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-12-09 01:41:38,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 01:41:38,117 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:41:38,117 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:41:38,118 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 01:41:38,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:41:38,118 INFO L82 PathProgramCache]: Analyzing trace with hash 865022638, now seen corresponding path program 1 times [2018-12-09 01:41:38,118 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 01:41:38,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 01:41:38,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:38,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:41:38,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:41:38,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:41:38,139 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:41:38,139 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/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 01:41:38,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:41:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:41:38,151 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:41:38,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:41:38,190 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 01:41:38,190 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-12-09 01:41:38,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 01:41:38,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 01:41:38,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 01:41:38,191 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 8 states. [2018-12-09 01:41:38,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:41:38,308 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-12-09 01:41:38,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 01:41:38,308 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-12-09 01:41:38,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:41:38,309 INFO L225 Difference]: With dead ends: 52 [2018-12-09 01:41:38,309 INFO L226 Difference]: Without dead ends: 51 [2018-12-09 01:41:38,309 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 [2018-12-09 01:41:38,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-09 01:41:38,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 35. [2018-12-09 01:41:38,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-09 01:41:38,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-12-09 01:41:38,313 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 13 [2018-12-09 01:41:38,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:41:38,313 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-12-09 01:41:38,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 01:41:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-12-09 01:41:38,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 01:41:38,314 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:41:38,314 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:41:38,314 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 01:41:38,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:41:38,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1042517224, now seen corresponding path program 1 times [2018-12-09 01:41:38,314 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 01:41:38,314 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 01:41:38,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:38,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:41:38,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:41:38,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:41:38,334 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:41:38,334 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/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 01:41:38,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:41:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:41:38,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:41:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:41:38,379 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 01:41:38,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2018-12-09 01:41:38,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 01:41:38,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 01:41:38,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:41:38,380 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand 7 states. [2018-12-09 01:41:38,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:41:38,401 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2018-12-09 01:41:38,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 01:41:38,401 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-12-09 01:41:38,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:41:38,402 INFO L225 Difference]: With dead ends: 35 [2018-12-09 01:41:38,402 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 01:41:38,402 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 [2018-12-09 01:41:38,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 01:41:38,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2018-12-09 01:41:38,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-09 01:41:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2018-12-09 01:41:38,405 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 13 [2018-12-09 01:41:38,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:41:38,405 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2018-12-09 01:41:38,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 01:41:38,405 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2018-12-09 01:41:38,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 01:41:38,406 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:41:38,406 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:41:38,406 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 01:41:38,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:41:38,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1042517416, now seen corresponding path program 1 times [2018-12-09 01:41:38,406 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 01:41:38,406 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 01:41:38,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:38,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:41:38,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:41:38,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:41:38,430 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:41:38,430 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/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 01:41:38,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:41:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:41:38,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:41:38,460 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 01:41:38,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 01:41:38,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-12-09 01:41:38,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 01:41:38,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 01:41:38,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-09 01:41:38,474 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 8 states. [2018-12-09 01:41:38,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:41:38,513 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2018-12-09 01:41:38,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 01:41:38,514 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-12-09 01:41:38,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:41:38,514 INFO L225 Difference]: With dead ends: 37 [2018-12-09 01:41:38,514 INFO L226 Difference]: Without dead ends: 36 [2018-12-09 01:41:38,515 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 [2018-12-09 01:41:38,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-09 01:41:38,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2018-12-09 01:41:38,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-09 01:41:38,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2018-12-09 01:41:38,517 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 13 [2018-12-09 01:41:38,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:41:38,517 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2018-12-09 01:41:38,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 01:41:38,517 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-12-09 01:41:38,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 01:41:38,518 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:41:38,518 INFO L402 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:41:38,518 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 01:41:38,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:41:38,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1987862754, now seen corresponding path program 1 times [2018-12-09 01:41:38,518 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 01:41:38,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 01:41:38,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:38,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:41:38,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:41:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:41:38,558 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:41:38,558 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 01:41:38,558 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/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 01:41:38,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:41:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:41:38,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:41:38,611 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:41:38,624 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 01:41:38,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-12-09 01:41:38,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 01:41:38,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 01:41:38,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-12-09 01:41:38,625 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 11 states. [2018-12-09 01:41:38,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:41:38,970 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2018-12-09 01:41:38,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-09 01:41:38,970 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2018-12-09 01:41:38,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:41:38,971 INFO L225 Difference]: With dead ends: 60 [2018-12-09 01:41:38,971 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 01:41:38,971 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=382, Invalid=878, Unknown=0, NotChecked=0, Total=1260 [2018-12-09 01:41:38,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 01:41:38,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 01:41:38,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 01:41:38,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 01:41:38,972 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-12-09 01:41:38,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:41:38,972 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 01:41:38,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 01:41:38,972 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 01:41:38,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 01:41:38,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 01:41:39,057 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 01:41:39,057 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:41:39,057 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:41:39,057 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 01:41:39,058 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 01:41:39,058 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:41:39,058 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-12-09 01:41:39,058 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-09 01:41:39,058 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 16 30) no Hoare annotation was computed. [2018-12-09 01:41:39,058 INFO L448 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-12-09 01:41:39,058 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-12-09 01:41:39,058 INFO L448 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-12-09 01:41:39,058 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-12-09 01:41:39,058 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 16 30) no Hoare annotation was computed. [2018-12-09 01:41:39,058 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-12-09 01:41:39,058 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 16 30) the Hoare annotation is: true [2018-12-09 01:41:39,058 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 26) no Hoare annotation was computed. [2018-12-09 01:41:39,059 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 28) no Hoare annotation was computed. [2018-12-09 01:41:39,059 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 21 27) the Hoare annotation is: (and (<= 0 main_~y1~0) (<= 0 main_~y2~0) (<= main_~y2~0 2147483647) (<= main_~y1~0 2147483647)) [2018-12-09 01:41:39,059 INFO L448 ceAbstractionStarter]: For program point L20-1(lines 20 28) no Hoare annotation was computed. [2018-12-09 01:41:39,059 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-12-09 01:41:39,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:41:39 BoogieIcfgContainer [2018-12-09 01:41:39,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:41:39,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:41:39,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:41:39,067 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:41:39,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:41:37" (3/4) ... [2018-12-09 01:41:39,070 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 01:41:39,075 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 01:41:39,075 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 01:41:39,079 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 01:41:39,079 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 01:41:39,079 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 01:41:39,107 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_aca87ee7-a5af-40b3-a862-a439ea6ff93f/bin-2019/uautomizer/witness.graphml [2018-12-09 01:41:39,107 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:41:39,107 INFO L168 Benchmark]: Toolchain (without parser) took 1756.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 958.7 MB in the beginning and 824.7 MB in the end (delta: 133.9 MB). Peak memory consumption was 260.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:41:39,108 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:41:39,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 116.03 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 950.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-09 01:41:39,109 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.27 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:41:39,109 INFO L168 Benchmark]: Boogie Preprocessor took 11.42 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:41:39,109 INFO L168 Benchmark]: RCFGBuilder took 140.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-09 01:41:39,110 INFO L168 Benchmark]: TraceAbstraction took 1434.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 828.2 MB in the end (delta: 282.3 MB). Peak memory consumption was 282.3 MB. Max. memory is 11.5 GB. [2018-12-09 01:41:39,110 INFO L168 Benchmark]: Witness Printer took 39.98 ms. Allocated memory is still 1.2 GB. Free memory was 828.2 MB in the beginning and 824.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:41:39,112 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 116.03 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 950.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.27 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.42 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 140.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1434.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 828.2 MB in the end (delta: 282.3 MB). Peak memory consumption was 282.3 MB. Max. memory is 11.5 GB. * Witness Printer took 39.98 ms. Allocated memory is still 1.2 GB. Free memory was 828.2 MB in the beginning and 824.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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: 21]: Loop Invariant Derived loop invariant: ((0 <= y1 && 0 <= y2) && y2 <= 2147483647) && y1 <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 4 error locations. SAFE Result, 1.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 179 SDslu, 132 SDs, 0 SdLazy, 458 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 142 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 0.5s 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, 42 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 15 NumberOfFragments, 18 HoareAnnotationTreeSize, 5 FomulaSimplifications, 263 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 396 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, 8664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 157 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 20/50 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...