./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/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 500cb8735f650eb0e7c33062ddc23c2166b17f19 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:04:08,020 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:04:08,022 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:04:08,028 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:04:08,028 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:04:08,029 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:04:08,030 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:04:08,031 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:04:08,032 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:04:08,033 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:04:08,033 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:04:08,033 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:04:08,034 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:04:08,035 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:04:08,035 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:04:08,036 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:04:08,036 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:04:08,037 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:04:08,038 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:04:08,039 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:04:08,039 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:04:08,040 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:04:08,041 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:04:08,041 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:04:08,041 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:04:08,042 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:04:08,042 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:04:08,043 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:04:08,043 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:04:08,044 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:04:08,044 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:04:08,045 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:04:08,045 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:04:08,045 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:04:08,046 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:04:08,046 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:04:08,046 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-23 14:04:08,056 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:04:08,056 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:04:08,056 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:04:08,057 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:04:08,057 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:04:08,057 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:04:08,057 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:04:08,057 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:04:08,058 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 14:04:08,058 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:04:08,058 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:04:08,058 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:04:08,058 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:04:08,058 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:04:08,058 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 14:04:08,059 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:04:08,059 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:04:08,059 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:04:08,059 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:04:08,059 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:04:08,059 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:04:08,059 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:04:08,059 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:04:08,060 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:04:08,060 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:04:08,060 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:04:08,060 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:04:08,060 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:04:08,060 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:04:08,060 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_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/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 -> 500cb8735f650eb0e7c33062ddc23c2166b17f19 [2018-11-23 14:04:08,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:04:08,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:04:08,096 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:04:08,097 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:04:08,097 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:04:08,098 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-11-23 14:04:08,142 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/bin-2019/uautomizer/data/bf35b918b/ac7f47c732e34ca4b625f9327da95a04/FLAGe50c7c582 [2018-11-23 14:04:08,535 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:04:08,535 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-11-23 14:04:08,539 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/bin-2019/uautomizer/data/bf35b918b/ac7f47c732e34ca4b625f9327da95a04/FLAGe50c7c582 [2018-11-23 14:04:08,550 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/bin-2019/uautomizer/data/bf35b918b/ac7f47c732e34ca4b625f9327da95a04 [2018-11-23 14:04:08,553 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:04:08,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:04:08,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:04:08,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:04:08,558 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:04:08,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:08" (1/1) ... [2018-11-23 14:04:08,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd21f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:08, skipping insertion in model container [2018-11-23 14:04:08,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:08" (1/1) ... [2018-11-23 14:04:08,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:04:08,579 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:04:08,682 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:04:08,684 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:04:08,694 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:04:08,701 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:04:08,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:08 WrapperNode [2018-11-23 14:04:08,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:04:08,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:04:08,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:04:08,702 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:04:08,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:08" (1/1) ... [2018-11-23 14:04:08,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:08" (1/1) ... [2018-11-23 14:04:08,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:04:08,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:04:08,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:04:08,715 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:04:08,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:08" (1/1) ... [2018-11-23 14:04:08,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:08" (1/1) ... [2018-11-23 14:04:08,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:08" (1/1) ... [2018-11-23 14:04:08,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:08" (1/1) ... [2018-11-23 14:04:08,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:08" (1/1) ... [2018-11-23 14:04:08,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:08" (1/1) ... [2018-11-23 14:04:08,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:08" (1/1) ... [2018-11-23 14:04:08,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:04:08,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:04:08,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:04:08,726 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:04:08,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/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 [2018-11-23 14:04:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 14:04:08,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 14:04:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:04:08,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:04:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 14:04:08,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 14:04:08,895 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:04:08,895 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 14:04:08,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:08 BoogieIcfgContainer [2018-11-23 14:04:08,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:04:08,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:04:08,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:04:08,899 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:04:08,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:04:08" (1/3) ... [2018-11-23 14:04:08,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570106ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:08, skipping insertion in model container [2018-11-23 14:04:08,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:08" (2/3) ... [2018-11-23 14:04:08,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570106ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:08, skipping insertion in model container [2018-11-23 14:04:08,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:08" (3/3) ... [2018-11-23 14:04:08,901 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-11-23 14:04:08,907 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:04:08,911 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-23 14:04:08,923 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-23 14:04:08,947 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:04:08,948 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:04:08,948 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:04:08,948 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:04:08,948 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:04:08,948 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:04:08,948 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:04:08,948 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:04:08,948 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:04:08,958 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-23 14:04:08,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:04:08,961 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:04:08,962 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:04:08,963 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:04:08,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:04:08,967 INFO L82 PathProgramCache]: Analyzing trace with hash 350361843, now seen corresponding path program 1 times [2018-11-23 14:04:08,968 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:04:08,968 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:04:09,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:04:09,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:04:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:04:09,055 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:04:09,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:04:09,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:04:09,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:04:09,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:04:09,067 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-11-23 14:04:09,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:04:09,125 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2018-11-23 14:04:09,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:04:09,126 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 14:04:09,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:04:09,134 INFO L225 Difference]: With dead ends: 34 [2018-11-23 14:04:09,134 INFO L226 Difference]: Without dead ends: 20 [2018-11-23 14:04:09,137 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 [2018-11-23 14:04:09,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-23 14:04:09,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2018-11-23 14:04:09,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-23 14:04:09,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-23 14:04:09,160 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2018-11-23 14:04:09,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:04:09,161 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-23 14:04:09,161 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:04:09,161 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-23 14:04:09,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 14:04:09,161 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:04:09,161 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:04:09,161 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:04:09,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:04:09,162 INFO L82 PathProgramCache]: Analyzing trace with hash 350362035, now seen corresponding path program 1 times [2018-11-23 14:04:09,162 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:04:09,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:04:09,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:04:09,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:04:09,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:04:09,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:04:09,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 14:04:09,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:04:09,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:04:09,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:04:09,199 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-23 14:04:09,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:04:09,218 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2018-11-23 14:04:09,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:04:09,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 14:04:09,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:04:09,219 INFO L225 Difference]: With dead ends: 34 [2018-11-23 14:04:09,219 INFO L226 Difference]: Without dead ends: 21 [2018-11-23 14:04:09,220 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:04:09,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-23 14:04:09,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-23 14:04:09,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-23 14:04:09,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-23 14:04:09,224 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 9 [2018-11-23 14:04:09,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:04:09,225 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-23 14:04:09,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:04:09,225 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-23 14:04:09,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 14:04:09,225 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:04:09,225 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:04:09,225 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:04:09,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:04:09,226 INFO L82 PathProgramCache]: Analyzing trace with hash -2023684702, now seen corresponding path program 1 times [2018-11-23 14:04:09,226 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:04:09,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:04:09,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:04:09,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:04:09,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:04:09,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:04:09,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:04:09,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:04:09,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:04:09,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:04:09,245 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 3 states. [2018-11-23 14:04:09,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:04:09,258 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-11-23 14:04:09,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:04:09,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 14:04:09,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:04:09,259 INFO L225 Difference]: With dead ends: 21 [2018-11-23 14:04:09,259 INFO L226 Difference]: Without dead ends: 20 [2018-11-23 14:04:09,259 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 [2018-11-23 14:04:09,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-23 14:04:09,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-23 14:04:09,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-23 14:04:09,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-23 14:04:09,261 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10 [2018-11-23 14:04:09,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:04:09,262 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-23 14:04:09,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:04:09,262 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-23 14:04:09,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 14:04:09,262 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:04:09,262 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:04:09,263 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:04:09,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:04:09,263 INFO L82 PathProgramCache]: Analyzing trace with hash 865022446, now seen corresponding path program 1 times [2018-11-23 14:04:09,263 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:04:09,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:04:09,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:04:09,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:04:09,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:04:09,297 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:04:09,298 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/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 [2018-11-23 14:04:09,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:04:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:04:09,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:04:09,327 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:04:09,341 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:04:09,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-23 14:04:09,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 14:04:09,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:04:09,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:04:09,342 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-11-23 14:04:09,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:04:09,374 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2018-11-23 14:04:09,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 14:04:09,374 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-11-23 14:04:09,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:04:09,375 INFO L225 Difference]: With dead ends: 26 [2018-11-23 14:04:09,375 INFO L226 Difference]: Without dead ends: 25 [2018-11-23 14:04:09,375 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:04:09,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-23 14:04:09,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2018-11-23 14:04:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-23 14:04:09,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2018-11-23 14:04:09,378 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 13 [2018-11-23 14:04:09,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:04:09,378 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2018-11-23 14:04:09,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 14:04:09,378 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-11-23 14:04:09,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 14:04:09,378 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:04:09,379 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:04:09,379 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:04:09,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:04:09,379 INFO L82 PathProgramCache]: Analyzing trace with hash 865022638, now seen corresponding path program 1 times [2018-11-23 14:04:09,379 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:04:09,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:04:09,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:04:09,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:04:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 14:04:09,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:04:09,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:04:09,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:04:09,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:04:09,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:04:09,398 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 3 states. [2018-11-23 14:04:09,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:04:09,422 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2018-11-23 14:04:09,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:04:09,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-23 14:04:09,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:04:09,423 INFO L225 Difference]: With dead ends: 37 [2018-11-23 14:04:09,423 INFO L226 Difference]: Without dead ends: 36 [2018-11-23 14:04:09,423 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 [2018-11-23 14:04:09,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-23 14:04:09,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-11-23 14:04:09,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-23 14:04:09,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2018-11-23 14:04:09,426 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 13 [2018-11-23 14:04:09,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:04:09,426 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2018-11-23 14:04:09,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:04:09,427 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2018-11-23 14:04:09,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 14:04:09,427 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:04:09,427 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:04:09,427 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:04:09,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:04:09,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1045898061, now seen corresponding path program 1 times [2018-11-23 14:04:09,428 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:04:09,428 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:04:09,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:04:09,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:04:09,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 14:04:09,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:04:09,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 14:04:09,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 14:04:09,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 14:04:09,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 14:04:09,456 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 3 states. [2018-11-23 14:04:09,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:04:09,469 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2018-11-23 14:04:09,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 14:04:09,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-11-23 14:04:09,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:04:09,470 INFO L225 Difference]: With dead ends: 34 [2018-11-23 14:04:09,470 INFO L226 Difference]: Without dead ends: 33 [2018-11-23 14:04:09,470 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 [2018-11-23 14:04:09,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-23 14:04:09,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-23 14:04:09,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-23 14:04:09,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2018-11-23 14:04:09,474 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 14 [2018-11-23 14:04:09,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:04:09,474 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2018-11-23 14:04:09,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 14:04:09,474 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2018-11-23 14:04:09,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 14:04:09,474 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:04:09,474 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:04:09,474 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:04:09,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:04:09,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1816046231, now seen corresponding path program 2 times [2018-11-23 14:04:09,475 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:04:09,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:04:09,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:04:09,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:04:09,515 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:04:09,515 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:04:09,515 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/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 [2018-11-23 14:04:09,522 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 14:04:09,530 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 14:04:09,531 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:04:09,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:04:09,577 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-23 14:04:09,592 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:04:09,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-11-23 14:04:09,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 14:04:09,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 14:04:09,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:04:09,593 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand 8 states. [2018-11-23 14:04:09,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:04:09,675 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2018-11-23 14:04:09,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 14:04:09,676 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-11-23 14:04:09,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:04:09,677 INFO L225 Difference]: With dead ends: 47 [2018-11-23 14:04:09,678 INFO L226 Difference]: Without dead ends: 46 [2018-11-23 14:04:09,678 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2018-11-23 14:04:09,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-23 14:04:09,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 20. [2018-11-23 14:04:09,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-23 14:04:09,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-23 14:04:09,683 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 17 [2018-11-23 14:04:09,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:04:09,683 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-23 14:04:09,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 14:04:09,683 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-23 14:04:09,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 14:04:09,683 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:04:09,683 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:04:09,684 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:04:09,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:04:09,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1638551261, now seen corresponding path program 1 times [2018-11-23 14:04:09,684 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:04:09,684 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:04:09,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,685 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:04:09,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:04:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 14:04:09,707 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:04:09,707 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/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 [2018-11-23 14:04:09,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:04:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:04:09,722 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:04:09,737 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 14:04:09,751 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:04:09,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-11-23 14:04:09,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 14:04:09,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 14:04:09,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 14:04:09,752 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 6 states. [2018-11-23 14:04:09,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:04:09,823 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2018-11-23 14:04:09,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 14:04:09,823 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-11-23 14:04:09,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:04:09,824 INFO L225 Difference]: With dead ends: 38 [2018-11-23 14:04:09,824 INFO L226 Difference]: Without dead ends: 31 [2018-11-23 14:04:09,824 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-11-23 14:04:09,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-23 14:04:09,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-11-23 14:04:09,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-23 14:04:09,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2018-11-23 14:04:09,828 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 17 [2018-11-23 14:04:09,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:04:09,828 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2018-11-23 14:04:09,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 14:04:09,829 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2018-11-23 14:04:09,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 14:04:09,829 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:04:09,829 INFO L402 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:04:09,830 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 14:04:09,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:04:09,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1197112946, now seen corresponding path program 2 times [2018-11-23 14:04:09,830 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:04:09,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:04:09,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:04:09,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:04:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:04:09,878 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 14:04:09,878 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:04:09,878 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/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 [2018-11-23 14:04:09,885 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 14:04:09,894 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 14:04:09,894 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 14:04:09,896 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:04:09,908 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-11-23 14:04:09,922 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:04:09,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-11-23 14:04:09,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 14:04:09,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 14:04:09,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-23 14:04:09,923 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 7 states. [2018-11-23 14:04:09,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:04:09,974 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2018-11-23 14:04:09,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 14:04:09,974 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2018-11-23 14:04:09,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:04:09,975 INFO L225 Difference]: With dead ends: 40 [2018-11-23 14:04:09,975 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 14:04:09,975 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-23 14:04:09,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 14:04:09,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 14:04:09,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 14:04:09,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 14:04:09,976 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-11-23 14:04:09,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:04:09,976 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:04:09,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 14:04:09,977 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:04:09,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:04:09,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 14:04:10,076 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 14:04:10,076 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:04:10,076 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 14:04:10,076 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 14:04:10,076 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 14:04:10,076 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 14:04:10,076 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-23 14:04:10,076 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 30) no Hoare annotation was computed. [2018-11-23 14:04:10,077 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-23 14:04:10,077 INFO L448 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-11-23 14:04:10,077 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 26) no Hoare annotation was computed. [2018-11-23 14:04:10,077 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 14:04:10,077 INFO L444 ceAbstractionStarter]: At program point L21-2(lines 20 27) the Hoare annotation is: (let ((.cse0 (<= 0 main_~j~0)) (.cse1 (<= main_~n~0 2147483647)) (.cse2 (<= 0 main_~i~0)) (.cse3 (<= main_~m~0 2147483646))) (or (and .cse0 .cse1 .cse2 (<= 1 main_~m~0) (<= main_~i~0 2147483646) .cse3) (and .cse0 .cse1 .cse2 .cse3 (<= (+ main_~j~0 1) main_~m~0)))) [2018-11-23 14:04:10,077 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 28) no Hoare annotation was computed. [2018-11-23 14:04:10,077 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 28) no Hoare annotation was computed. [2018-11-23 14:04:10,077 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 30) no Hoare annotation was computed. [2018-11-23 14:04:10,078 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 30) the Hoare annotation is: true [2018-11-23 14:04:10,078 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-23 14:04:10,078 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 14:04:10,078 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 14:04:10,078 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-23 14:04:10,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:04:10 BoogieIcfgContainer [2018-11-23 14:04:10,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:04:10,090 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:04:10,090 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:04:10,090 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:04:10,091 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:08" (3/4) ... [2018-11-23 14:04:10,093 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:04:10,098 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 14:04:10,098 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 14:04:10,101 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 14:04:10,101 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 14:04:10,102 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 14:04:10,102 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 14:04:10,130 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d6aa34c9-6e01-47f8-9b26-6fce4bdd43de/bin-2019/uautomizer/witness.graphml [2018-11-23 14:04:10,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:04:10,131 INFO L168 Benchmark]: Toolchain (without parser) took 1577.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 959.2 MB in the beginning and 941.2 MB in the end (delta: 18.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 11.5 GB. [2018-11-23 14:04:10,132 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:04:10,132 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.33 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:04:10,132 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.37 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:04:10,133 INFO L168 Benchmark]: Boogie Preprocessor took 11.12 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:04:10,133 INFO L168 Benchmark]: RCFGBuilder took 169.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:04:10,133 INFO L168 Benchmark]: TraceAbstraction took 1193.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.7 MB in the end (delta: 168.4 MB). Peak memory consumption was 168.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:04:10,134 INFO L168 Benchmark]: Witness Printer took 40.64 ms. Allocated memory is still 1.2 GB. Free memory was 944.7 MB in the beginning and 941.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 14:04:10,136 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 147.33 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.37 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.12 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 169.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -167.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1193.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.7 MB in the end (delta: 168.4 MB). Peak memory consumption was 168.4 MB. Max. memory is 11.5 GB. * Witness Printer took 40.64 ms. Allocated memory is still 1.2 GB. Free memory was 944.7 MB in the beginning and 941.2 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: 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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: 20]: Loop Invariant Derived loop invariant: (((((0 <= j && n <= 2147483647) && 0 <= i) && 1 <= m) && i <= 2147483646) && m <= 2147483646) || ((((0 <= j && n <= 2147483647) && 0 <= i) && m <= 2147483646) && j + 1 <= m) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 4 error locations. SAFE Result, 1.1s OverallTime, 9 OverallIterations, 6 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 103 SDtfs, 102 SDslu, 120 SDs, 0 SdLazy, 126 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=5, 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, 9 MinimizatonAttempts, 31 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 14 NumberOfFragments, 42 HoareAnnotationTreeSize, 5 FomulaSimplifications, 622 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 207 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 8466 SizeOfPredicates, 3 NumberOfNonLiveVariables, 132 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 56/124 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...