./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/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 85017c4a5a64f245bd703090448e8d5785d54b75 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:35:47,138 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:35:47,139 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:35:47,146 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:35:47,146 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:35:47,147 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:35:47,148 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:35:47,149 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:35:47,150 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:35:47,151 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:35:47,151 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:35:47,152 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:35:47,152 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:35:47,153 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:35:47,154 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:35:47,154 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:35:47,155 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:35:47,156 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:35:47,158 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:35:47,159 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:35:47,160 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:35:47,162 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:35:47,164 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:35:47,164 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:35:47,164 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:35:47,165 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:35:47,165 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:35:47,167 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:35:47,167 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:35:47,168 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:35:47,168 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:35:47,169 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:35:47,169 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:35:47,169 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:35:47,170 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:35:47,171 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:35:47,171 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 13:35:47,180 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:35:47,181 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:35:47,181 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 13:35:47,182 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 13:35:47,182 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:35:47,182 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:35:47,182 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:35:47,183 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:35:47,183 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:35:47,183 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:35:47,183 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:35:47,183 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 13:35:47,183 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 13:35:47,183 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 13:35:47,184 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 13:35:47,184 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:35:47,184 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:35:47,184 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 13:35:47,184 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:35:47,184 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:35:47,184 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 13:35:47,184 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 13:35:47,185 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 13:35:47,185 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:35:47,185 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 13:35:47,185 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 13:35:47,185 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:35:47,185 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 13:35:47,185 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 13:35:47,186 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_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/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 -> 85017c4a5a64f245bd703090448e8d5785d54b75 [2018-11-28 13:35:47,210 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:35:47,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:35:47,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:35:47,223 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:35:47,224 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:35:47,224 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction_true-termination_true-no-overflow.c [2018-11-28 13:35:47,268 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/bin-2019/uautomizer/data/39db030d8/f6ce5287009b4aa0a6d2edae85302171/FLAG8a98695de [2018-11-28 13:35:47,669 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:35:47,669 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction_true-termination_true-no-overflow.c [2018-11-28 13:35:47,674 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/bin-2019/uautomizer/data/39db030d8/f6ce5287009b4aa0a6d2edae85302171/FLAG8a98695de [2018-11-28 13:35:47,687 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/bin-2019/uautomizer/data/39db030d8/f6ce5287009b4aa0a6d2edae85302171 [2018-11-28 13:35:47,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:35:47,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:35:47,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:35:47,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:35:47,696 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:35:47,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:35:47" (1/1) ... [2018-11-28 13:35:47,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e66137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:35:47, skipping insertion in model container [2018-11-28 13:35:47,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:35:47" (1/1) ... [2018-11-28 13:35:47,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:35:47,715 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:35:47,820 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:35:47,823 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:35:47,835 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:35:47,846 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:35:47,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:35:47 WrapperNode [2018-11-28 13:35:47,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:35:47,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:35:47,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:35:47,848 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:35:47,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:35:47" (1/1) ... [2018-11-28 13:35:47,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:35:47" (1/1) ... [2018-11-28 13:35:47,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:35:47,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:35:47,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:35:47,864 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:35:47,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:35:47" (1/1) ... [2018-11-28 13:35:47,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:35:47" (1/1) ... [2018-11-28 13:35:47,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:35:47" (1/1) ... [2018-11-28 13:35:47,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:35:47" (1/1) ... [2018-11-28 13:35:47,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:35:47" (1/1) ... [2018-11-28 13:35:47,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:35:47" (1/1) ... [2018-11-28 13:35:47,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:35:47" (1/1) ... [2018-11-28 13:35:47,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:35:47,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:35:47,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:35:47,881 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:35:47,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:35:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/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 [2018-11-28 13:35:47,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 13:35:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 13:35:47,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:35:47,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:35:47,963 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 13:35:47,963 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 13:35:48,054 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:35:48,054 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 13:35:48,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:35:48 BoogieIcfgContainer [2018-11-28 13:35:48,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:35:48,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 13:35:48,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 13:35:48,057 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 13:35:48,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 01:35:47" (1/3) ... [2018-11-28 13:35:48,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158f2def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:35:48, skipping insertion in model container [2018-11-28 13:35:48,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:35:47" (2/3) ... [2018-11-28 13:35:48,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158f2def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 01:35:48, skipping insertion in model container [2018-11-28 13:35:48,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:35:48" (3/3) ... [2018-11-28 13:35:48,059 INFO L112 eAbstractionObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Introduction_true-termination_true-no-overflow.c [2018-11-28 13:35:48,065 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 13:35:48,069 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 13:35:48,079 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 13:35:48,100 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:35:48,101 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 13:35:48,101 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 13:35:48,101 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 13:35:48,101 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:35:48,101 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:35:48,101 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 13:35:48,101 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:35:48,101 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 13:35:48,116 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-28 13:35:48,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 13:35:48,119 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:48,119 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:35:48,121 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:35:48,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:48,125 INFO L82 PathProgramCache]: Analyzing trace with hash -37667266, now seen corresponding path program 1 times [2018-11-28 13:35:48,126 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:35:48,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:35:48,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:48,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:48,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:48,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:35:48,225 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:35:48,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:35:48,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:35:48,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:35:48,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:35:48,239 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2018-11-28 13:35:48,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:48,286 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-11-28 13:35:48,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:35:48,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 13:35:48,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:48,293 INFO L225 Difference]: With dead ends: 31 [2018-11-28 13:35:48,293 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 13:35:48,295 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:35:48,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 13:35:48,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-11-28 13:35:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 13:35:48,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-28 13:35:48,320 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2018-11-28 13:35:48,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:48,320 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-28 13:35:48,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:35:48,320 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-28 13:35:48,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 13:35:48,321 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:48,321 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:35:48,321 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:35:48,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:48,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1167685199, now seen corresponding path program 1 times [2018-11-28 13:35:48,322 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:35:48,322 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:35:48,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:48,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:48,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:35:48,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:35:48,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 13:35:48,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 13:35:48,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 13:35:48,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 13:35:48,354 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2018-11-28 13:35:48,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:48,402 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2018-11-28 13:35:48,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:35:48,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-28 13:35:48,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:48,403 INFO L225 Difference]: With dead ends: 21 [2018-11-28 13:35:48,403 INFO L226 Difference]: Without dead ends: 19 [2018-11-28 13:35:48,403 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 [2018-11-28 13:35:48,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-28 13:35:48,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2018-11-28 13:35:48,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-28 13:35:48,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-28 13:35:48,405 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2018-11-28 13:35:48,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:48,406 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-28 13:35:48,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 13:35:48,406 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-28 13:35:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 13:35:48,406 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:48,406 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:35:48,406 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:35:48,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:48,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1159010413, now seen corresponding path program 1 times [2018-11-28 13:35:48,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:35:48,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:35:48,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:48,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:48,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:35:48,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:35:48,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:35:48,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 13:35:48,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:35:48,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:35:48,426 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2018-11-28 13:35:48,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:48,441 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-11-28 13:35:48,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:35:48,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 13:35:48,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:48,442 INFO L225 Difference]: With dead ends: 18 [2018-11-28 13:35:48,442 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 13:35:48,443 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:35:48,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 13:35:48,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-28 13:35:48,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 13:35:48,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-11-28 13:35:48,448 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2018-11-28 13:35:48,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:48,448 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-11-28 13:35:48,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 13:35:48,448 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-28 13:35:48,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 13:35:48,448 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:48,449 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:35:48,449 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:35:48,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:48,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1412475851, now seen corresponding path program 1 times [2018-11-28 13:35:48,449 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:35:48,449 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:35:48,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:48,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:48,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:35:48,527 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:35:48,527 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/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 [2018-11-28 13:35:48,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:48,551 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:35:48,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:35:48,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 13:35:48,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2018-11-28 13:35:48,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 13:35:48,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 13:35:48,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:35:48,645 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 9 states. [2018-11-28 13:35:48,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:48,691 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-11-28 13:35:48,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:35:48,691 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2018-11-28 13:35:48,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:48,691 INFO L225 Difference]: With dead ends: 18 [2018-11-28 13:35:48,692 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 13:35:48,692 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:35:48,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 13:35:48,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-11-28 13:35:48,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 13:35:48,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-28 13:35:48,694 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2018-11-28 13:35:48,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:48,694 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-28 13:35:48,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 13:35:48,695 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-28 13:35:48,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 13:35:48,695 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:48,695 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:35:48,695 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:35:48,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:48,696 INFO L82 PathProgramCache]: Analyzing trace with hash -837078374, now seen corresponding path program 1 times [2018-11-28 13:35:48,696 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:35:48,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:35:48,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:48,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:48,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:48,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:35:48,730 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:35:48,730 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/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 [2018-11-28 13:35:48,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:48,741 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:35:48,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:35:48,786 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 13:35:48,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-11-28 13:35:48,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 13:35:48,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:35:48,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:35:48,787 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2018-11-28 13:35:48,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:48,878 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2018-11-28 13:35:48,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 13:35:48,878 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-11-28 13:35:48,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:48,879 INFO L225 Difference]: With dead ends: 27 [2018-11-28 13:35:48,879 INFO L226 Difference]: Without dead ends: 25 [2018-11-28 13:35:48,879 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2018-11-28 13:35:48,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-28 13:35:48,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-28 13:35:48,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-28 13:35:48,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-11-28 13:35:48,883 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 13 [2018-11-28 13:35:48,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:48,883 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-11-28 13:35:48,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 13:35:48,883 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-11-28 13:35:48,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 13:35:48,884 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:48,884 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2018-11-28 13:35:48,884 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:35:48,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:48,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1754295689, now seen corresponding path program 1 times [2018-11-28 13:35:48,884 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:35:48,885 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:35:48,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:48,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:48,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:48,955 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:35:48,955 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:35:48,955 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/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 [2018-11-28 13:35:48,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:48,983 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:35:48,988 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:35:49,004 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:35:49,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-11-28 13:35:49,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 13:35:49,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:35:49,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:35:49,005 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 6 states. [2018-11-28 13:35:49,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:49,033 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-11-28 13:35:49,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:35:49,034 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-11-28 13:35:49,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:49,035 INFO L225 Difference]: With dead ends: 32 [2018-11-28 13:35:49,035 INFO L226 Difference]: Without dead ends: 31 [2018-11-28 13:35:49,035 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:35:49,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-28 13:35:49,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-11-28 13:35:49,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-28 13:35:49,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-11-28 13:35:49,039 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 24 [2018-11-28 13:35:49,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:49,040 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-11-28 13:35:49,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 13:35:49,040 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-11-28 13:35:49,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 13:35:49,040 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:49,040 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2018-11-28 13:35:49,041 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:35:49,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:49,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1485878944, now seen corresponding path program 2 times [2018-11-28 13:35:49,041 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:35:49,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:35:49,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:49,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:35:49,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:49,101 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:35:49,102 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:35:49,102 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/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 [2018-11-28 13:35:49,124 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 13:35:49,133 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 13:35:49,133 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:35:49,134 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:35:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:35:49,155 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:35:49,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-28 13:35:49,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 13:35:49,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:35:49,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:35:49,156 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 7 states. [2018-11-28 13:35:49,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:49,182 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-28 13:35:49,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:35:49,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2018-11-28 13:35:49,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:49,183 INFO L225 Difference]: With dead ends: 37 [2018-11-28 13:35:49,184 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 13:35:49,184 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:35:49,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 13:35:49,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2018-11-28 13:35:49,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 13:35:49,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-11-28 13:35:49,187 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 29 [2018-11-28 13:35:49,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:49,188 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-11-28 13:35:49,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 13:35:49,188 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-11-28 13:35:49,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-28 13:35:49,188 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 13:35:49,189 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2018-11-28 13:35:49,189 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 13:35:49,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:35:49,189 INFO L82 PathProgramCache]: Analyzing trace with hash -563446761, now seen corresponding path program 3 times [2018-11-28 13:35:49,189 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:35:49,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:35:49,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:49,190 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:35:49,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:35:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:35:49,259 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:35:49,260 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:35:49,260 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/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 [2018-11-28 13:35:49,269 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 13:35:49,281 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-11-28 13:35:49,282 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:35:49,283 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:35:49,392 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 40 proven. 21 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 13:35:49,407 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:35:49,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2018-11-28 13:35:49,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-28 13:35:49,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-28 13:35:49,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2018-11-28 13:35:49,408 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 15 states. [2018-11-28 13:35:49,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:35:49,803 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-11-28 13:35:49,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-28 13:35:49,803 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 34 [2018-11-28 13:35:49,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 13:35:49,804 INFO L225 Difference]: With dead ends: 42 [2018-11-28 13:35:49,804 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 13:35:49,804 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=384, Invalid=876, Unknown=0, NotChecked=0, Total=1260 [2018-11-28 13:35:49,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 13:35:49,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 13:35:49,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 13:35:49,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 13:35:49,805 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-11-28 13:35:49,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 13:35:49,805 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:35:49,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-28 13:35:49,806 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:35:49,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 13:35:49,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 13:35:49,880 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 13:35:49,880 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:35:49,880 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 13:35:49,880 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 13:35:49,880 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 13:35:49,881 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 13:35:49,881 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 13:35:49,881 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 14 23) the Hoare annotation is: true [2018-11-28 13:35:49,881 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 14 23) no Hoare annotation was computed. [2018-11-28 13:35:49,881 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-28 13:35:49,881 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-28 13:35:49,881 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-28 13:35:49,881 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-28 13:35:49,881 INFO L444 ceAbstractionStarter]: At program point L18-2(lines 18 21) the Hoare annotation is: (or (and (<= main_~y~0 2147483647) (exists ((v_main_~y~0_23 Int)) (and (<= (+ main_~x~0 (* 2 v_main_~y~0_23)) 2147483648) (<= main_~y~0 (+ v_main_~y~0_23 1)))) (<= 2 main_~y~0)) (and (<= 1 main_~y~0) (<= (+ main_~x~0 main_~y~0) 2147483648) (<= main_~y~0 1))) [2018-11-28 13:35:49,882 INFO L448 ceAbstractionStarter]: For program point L18-3(lines 18 21) no Hoare annotation was computed. [2018-11-28 13:35:49,882 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 14 23) no Hoare annotation was computed. [2018-11-28 13:35:49,882 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-28 13:35:49,882 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-28 13:35:49,882 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 13:35:49,886 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_23,QUANTIFIED] [2018-11-28 13:35:49,887 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_23,QUANTIFIED] [2018-11-28 13:35:49,893 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_23,QUANTIFIED] [2018-11-28 13:35:49,894 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_23,QUANTIFIED] [2018-11-28 13:35:49,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 01:35:49 BoogieIcfgContainer [2018-11-28 13:35:49,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 13:35:49,896 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:35:49,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:35:49,897 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:35:49,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:35:48" (3/4) ... [2018-11-28 13:35:49,900 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 13:35:49,905 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 13:35:49,906 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 13:35:49,909 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 13:35:49,909 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 13:35:49,909 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 13:35:49,928 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((y <= 2147483647 && (\exists v_main_~y~0_23 : int :: x + 2 * v_main_~y~0_23 <= 2147483648 && y <= v_main_~y~0_23 + 1)) && 2 <= y) || ((1 <= y && x + y <= 2147483648) && y <= 1) [2018-11-28 13:35:49,938 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6b386f76-9ef3-4704-bb9a-11ac98ac90ae/bin-2019/uautomizer/witness.graphml [2018-11-28 13:35:49,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:35:49,939 INFO L168 Benchmark]: Toolchain (without parser) took 2249.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 958.0 MB in the beginning and 848.4 MB in the end (delta: 109.6 MB). Peak memory consumption was 237.0 MB. Max. memory is 11.5 GB. [2018-11-28 13:35:49,940 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 984.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:35:49,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.11 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 949.8 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2018-11-28 13:35:49,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.59 ms. Allocated memory is still 1.0 GB. Free memory is still 947.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:35:49,941 INFO L168 Benchmark]: Boogie Preprocessor took 16.72 ms. Allocated memory is still 1.0 GB. Free memory is still 947.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:35:49,941 INFO L168 Benchmark]: RCFGBuilder took 173.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 947.1 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:35:49,942 INFO L168 Benchmark]: TraceAbstraction took 1841.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.9 MB in the end (delta: 258.7 MB). Peak memory consumption was 258.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:35:49,943 INFO L168 Benchmark]: Witness Printer took 41.40 ms. Allocated memory is still 1.2 GB. Free memory was 851.9 MB in the beginning and 848.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-28 13:35:49,945 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 984.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.11 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 949.8 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.59 ms. Allocated memory is still 1.0 GB. Free memory is still 947.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.72 ms. Allocated memory is still 1.0 GB. Free memory is still 947.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 173.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 947.1 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1841.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 851.9 MB in the end (delta: 258.7 MB). Peak memory consumption was 258.7 MB. Max. memory is 11.5 GB. * Witness Printer took 41.40 ms. Allocated memory is still 1.2 GB. Free memory was 851.9 MB in the beginning and 848.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_23,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_23,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2018-11-28 13:35:49,950 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_23,QUANTIFIED] [2018-11-28 13:35:49,951 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_23,QUANTIFIED] [2018-11-28 13:35:49,951 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_23,QUANTIFIED] [2018-11-28 13:35:49,951 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_23,QUANTIFIED] Derived loop invariant: ((y <= 2147483647 && (\exists v_main_~y~0_23 : int :: x + 2 * v_main_~y~0_23 <= 2147483648 && y <= v_main_~y~0_23 + 1)) && 2 <= y) || ((1 <= y && x + y <= 2147483648) && y <= 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 4 error locations. SAFE Result, 1.7s OverallTime, 8 OverallIterations, 6 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 59 SDtfs, 100 SDslu, 145 SDs, 0 SdLazy, 193 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=7, 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, 8 MinimizatonAttempts, 5 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 12 NumberOfFragments, 38 HoareAnnotationTreeSize, 5 FomulaSimplifications, 141 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 249 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 236 ConstructedInterpolants, 4 QuantifiedInterpolants, 16290 SizeOfPredicates, 2 NumberOfNonLiveVariables, 220 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 54/296 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...