./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/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 282a32bc5fb3d70423f87a450340f7a26ab0f093 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 23:50:42,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:50:42,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:50:42,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:50:42,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:50:42,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:50:42,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:50:42,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:50:42,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:50:42,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:50:42,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:50:42,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:50:42,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:50:42,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:50:42,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:50:42,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:50:42,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:50:42,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:50:42,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:50:42,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:50:42,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:50:42,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:50:42,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:50:42,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:50:42,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:50:42,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:50:42,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:50:42,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:50:42,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:50:42,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:50:42,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:50:42,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:50:42,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:50:42,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:50:42,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:50:42,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:50:42,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:50:42,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:50:42,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:50:42,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:50:42,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:50:42,493 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-19 23:50:42,509 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:50:42,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:50:42,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:50:42,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:50:42,511 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:50:42,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:50:42,511 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 23:50:42,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:50:42,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:50:42,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:50:42,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:50:42,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:50:42,513 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-19 23:50:42,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:50:42,513 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:50:42,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:50:42,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:50:42,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:50:42,514 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:50:42,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:50:42,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:50:42,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:50:42,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:50:42,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:50:42,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:50:42,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:50:42,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:50:42,516 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/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 -> 282a32bc5fb3d70423f87a450340f7a26ab0f093 [2019-11-19 23:50:42,710 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:50:42,720 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:50:42,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:50:42,724 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:50:42,724 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:50:42,730 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c [2019-11-19 23:50:42,789 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/data/6d55b995b/0170b6e6b5c64052ab434c421b1c15b1/FLAG24c95b61c [2019-11-19 23:50:43,147 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:50:43,147 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/sv-benchmarks/c/termination-crafted/Arrays03-ValueRestictsIndex-2.c [2019-11-19 23:50:43,152 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/data/6d55b995b/0170b6e6b5c64052ab434c421b1c15b1/FLAG24c95b61c [2019-11-19 23:50:43,599 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/data/6d55b995b/0170b6e6b5c64052ab434c421b1c15b1 [2019-11-19 23:50:43,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:50:43,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:50:43,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:50:43,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:50:43,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:50:43,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:50:43" (1/1) ... [2019-11-19 23:50:43,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e22ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:50:43, skipping insertion in model container [2019-11-19 23:50:43,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:50:43" (1/1) ... [2019-11-19 23:50:43,627 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:50:43,644 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:50:43,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:50:43,787 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:50:43,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:50:43,883 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:50:43,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:50:43 WrapperNode [2019-11-19 23:50:43,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:50:43,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:50:43,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:50:43,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:50:43,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:50:43" (1/1) ... [2019-11-19 23:50:43,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:50:43" (1/1) ... [2019-11-19 23:50:43,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:50:43,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:50:43,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:50:43,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:50:43,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:50:43" (1/1) ... [2019-11-19 23:50:43,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:50:43" (1/1) ... [2019-11-19 23:50:43,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:50:43" (1/1) ... [2019-11-19 23:50:43,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:50:43" (1/1) ... [2019-11-19 23:50:43,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:50:43" (1/1) ... [2019-11-19 23:50:43,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:50:43" (1/1) ... [2019-11-19 23:50:43,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:50:43" (1/1) ... [2019-11-19 23:50:43,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:50:43,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:50:43,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:50:43,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:50:43,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:50:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/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 [2019-11-19 23:50:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 23:50:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:50:43,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:50:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 23:50:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:50:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 23:50:44,246 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:50:44,247 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 23:50:44,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:50:44 BoogieIcfgContainer [2019-11-19 23:50:44,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:50:44,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:50:44,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:50:44,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:50:44,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:50:43" (1/3) ... [2019-11-19 23:50:44,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bc3b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:50:44, skipping insertion in model container [2019-11-19 23:50:44,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:50:43" (2/3) ... [2019-11-19 23:50:44,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bc3b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:50:44, skipping insertion in model container [2019-11-19 23:50:44,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:50:44" (3/3) ... [2019-11-19 23:50:44,256 INFO L109 eAbstractionObserver]: Analyzing ICFG Arrays03-ValueRestictsIndex-2.c [2019-11-19 23:50:44,264 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:50:44,270 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-19 23:50:44,280 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-19 23:50:44,318 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:50:44,318 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:50:44,318 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:50:44,318 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:50:44,319 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:50:44,319 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:50:44,319 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:50:44,319 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:50:44,333 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-19 23:50:44,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-19 23:50:44,338 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:50:44,339 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-19 23:50:44,339 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 23:50:44,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:50:44,344 INFO L82 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2019-11-19 23:50:44,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:50:44,352 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526065488] [2019-11-19 23:50:44,369 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:50:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:50:44,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:50:44,586 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526065488] [2019-11-19 23:50:44,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:50:44,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 23:50:44,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269675016] [2019-11-19 23:50:44,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 23:50:44,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:50:44,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 23:50:44,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 23:50:44,604 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2019-11-19 23:50:44,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:50:44,679 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2019-11-19 23:50:44,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 23:50:44,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-19 23:50:44,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:50:44,687 INFO L225 Difference]: With dead ends: 38 [2019-11-19 23:50:44,688 INFO L226 Difference]: Without dead ends: 20 [2019-11-19 23:50:44,690 INFO L630 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 [2019-11-19 23:50:44,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-19 23:50:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-19 23:50:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-19 23:50:44,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2019-11-19 23:50:44,721 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 5 [2019-11-19 23:50:44,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:50:44,721 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2019-11-19 23:50:44,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 23:50:44,721 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2019-11-19 23:50:44,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-19 23:50:44,722 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:50:44,722 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-11-19 23:50:44,722 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 23:50:44,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:50:44,723 INFO L82 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2019-11-19 23:50:44,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:50:44,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471026758] [2019-11-19 23:50:44,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:50:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:50:44,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 23:50:44,765 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471026758] [2019-11-19 23:50:44,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:50:44,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 23:50:44,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602010403] [2019-11-19 23:50:44,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 23:50:44,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:50:44,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 23:50:44,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 23:50:44,768 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2019-11-19 23:50:44,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:50:44,799 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2019-11-19 23:50:44,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 23:50:44,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-19 23:50:44,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:50:44,800 INFO L225 Difference]: With dead ends: 20 [2019-11-19 23:50:44,800 INFO L226 Difference]: Without dead ends: 19 [2019-11-19 23:50:44,801 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:50:44,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-19 23:50:44,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-19 23:50:44,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-19 23:50:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-11-19 23:50:44,805 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2019-11-19 23:50:44,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:50:44,805 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-11-19 23:50:44,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 23:50:44,805 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-11-19 23:50:44,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-19 23:50:44,806 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:50:44,806 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2019-11-19 23:50:44,806 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 23:50:44,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:50:44,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2019-11-19 23:50:44,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:50:44,807 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833736798] [2019-11-19 23:50:44,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:50:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:50:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:50:44,880 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833736798] [2019-11-19 23:50:44,880 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585363589] [2019-11-19 23:50:44,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:50:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:50:44,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 23:50:44,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:50:44,985 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:50:44,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-19 23:50:44,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2019-11-19 23:50:44,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236320094] [2019-11-19 23:50:44,986 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 23:50:44,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:50:44,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 23:50:44,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-19 23:50:44,987 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 6 states. [2019-11-19 23:50:45,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:50:45,053 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-11-19 23:50:45,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 23:50:45,053 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-19 23:50:45,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:50:45,054 INFO L225 Difference]: With dead ends: 19 [2019-11-19 23:50:45,054 INFO L226 Difference]: Without dead ends: 18 [2019-11-19 23:50:45,055 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-11-19 23:50:45,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-19 23:50:45,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2019-11-19 23:50:45,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-19 23:50:45,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-19 23:50:45,058 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2019-11-19 23:50:45,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:50:45,058 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-19 23:50:45,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 23:50:45,059 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-19 23:50:45,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-19 23:50:45,059 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:50:45,059 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:50:45,262 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:50:45,265 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 23:50:45,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:50:45,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1577266116, now seen corresponding path program 1 times [2019-11-19 23:50:45,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:50:45,266 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239683674] [2019-11-19 23:50:45,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:50:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:50:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:50:45,324 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239683674] [2019-11-19 23:50:45,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195123874] [2019-11-19 23:50:45,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:50:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:50:45,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:50:45,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:50:45,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:50:45,402 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 23:50:45,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-11-19 23:50:45,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320012375] [2019-11-19 23:50:45,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 23:50:45,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:50:45,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 23:50:45,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-19 23:50:45,404 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 7 states. [2019-11-19 23:50:45,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:50:45,452 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2019-11-19 23:50:45,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 23:50:45,453 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2019-11-19 23:50:45,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:50:45,454 INFO L225 Difference]: With dead ends: 30 [2019-11-19 23:50:45,454 INFO L226 Difference]: Without dead ends: 22 [2019-11-19 23:50:45,454 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-19 23:50:45,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-11-19 23:50:45,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2019-11-19 23:50:45,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-19 23:50:45,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-11-19 23:50:45,458 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2019-11-19 23:50:45,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:50:45,458 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-11-19 23:50:45,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 23:50:45,459 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-11-19 23:50:45,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-19 23:50:45,459 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:50:45,459 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:50:45,659 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:50:45,660 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 23:50:45,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:50:45,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1222737984, now seen corresponding path program 2 times [2019-11-19 23:50:45,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:50:45,661 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528624098] [2019-11-19 23:50:45,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:50:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:50:45,754 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:50:45,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528624098] [2019-11-19 23:50:45,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823118435] [2019-11-19 23:50:45,755 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:50:45,791 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-19 23:50:45,791 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-19 23:50:45,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:50:45,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:50:45,827 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-19 23:50:45,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-19 23:50:45,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2019-11-19 23:50:45,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684090466] [2019-11-19 23:50:45,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 23:50:45,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:50:45,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 23:50:45,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-11-19 23:50:45,829 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 4 states. [2019-11-19 23:50:45,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:50:45,847 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-11-19 23:50:45,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 23:50:45,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-11-19 23:50:45,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:50:45,849 INFO L225 Difference]: With dead ends: 19 [2019-11-19 23:50:45,849 INFO L226 Difference]: Without dead ends: 18 [2019-11-19 23:50:45,849 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-11-19 23:50:45,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-19 23:50:45,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-19 23:50:45,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-19 23:50:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-11-19 23:50:45,853 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 16 [2019-11-19 23:50:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:50:45,853 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-11-19 23:50:45,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 23:50:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-11-19 23:50:45,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-19 23:50:45,854 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:50:45,854 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:50:46,060 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 23:50:46,060 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 23:50:46,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:50:46,061 INFO L82 PathProgramCache]: Analyzing trace with hash -749828086, now seen corresponding path program 1 times [2019-11-19 23:50:46,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:50:46,061 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928813552] [2019-11-19 23:50:46,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:50:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:50:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-19 23:50:46,103 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928813552] [2019-11-19 23:50:46,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:50:46,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 23:50:46,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051708178] [2019-11-19 23:50:46,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 23:50:46,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:50:46,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 23:50:46,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 23:50:46,105 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2019-11-19 23:50:46,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:50:46,147 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-11-19 23:50:46,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 23:50:46,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-19 23:50:46,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:50:46,148 INFO L225 Difference]: With dead ends: 18 [2019-11-19 23:50:46,148 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 23:50:46,148 INFO L630 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 [2019-11-19 23:50:46,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 23:50:46,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 23:50:46,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 23:50:46,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 23:50:46,149 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-19 23:50:46,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:50:46,149 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 23:50:46,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 23:50:46,149 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 23:50:46,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 23:50:46,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 23:50:46,190 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-19 23:50:46,191 INFO L447 ceAbstractionStarter]: At program point L27(lines 11 28) the Hoare annotation is: true [2019-11-19 23:50:46,191 INFO L444 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2019-11-19 23:50:46,191 INFO L444 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-11-19 23:50:46,191 INFO L444 ceAbstractionStarter]: For program point L19(lines 19 26) no Hoare annotation was computed. [2019-11-19 23:50:46,191 INFO L444 ceAbstractionStarter]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2019-11-19 23:50:46,191 INFO L444 ceAbstractionStarter]: For program point L15-3(line 15) no Hoare annotation was computed. [2019-11-19 23:50:46,191 INFO L444 ceAbstractionStarter]: For program point L15-4(line 15) no Hoare annotation was computed. [2019-11-19 23:50:46,191 INFO L440 ceAbstractionStarter]: At program point L15-5(lines 15 17) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~i~0) [2019-11-19 23:50:46,191 INFO L444 ceAbstractionStarter]: For program point L15-6(lines 11 28) no Hoare annotation was computed. [2019-11-19 23:50:46,192 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 23:50:46,192 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-11-19 23:50:46,192 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 23:50:46,192 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 23:50:46,192 INFO L444 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-19 23:50:46,192 INFO L444 ceAbstractionStarter]: For program point L20-2(lines 20 25) no Hoare annotation was computed. [2019-11-19 23:50:46,192 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2019-11-19 23:50:46,192 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 23:50:46,192 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-19 23:50:46,193 INFO L440 ceAbstractionStarter]: At program point L22-2(lines 22 24) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~i~0) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~k~0 1047)) [2019-11-19 23:50:46,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:50:46 BoogieIcfgContainer [2019-11-19 23:50:46,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:50:46,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:50:46,204 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:50:46,204 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:50:46,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:50:44" (3/4) ... [2019-11-19 23:50:46,207 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 23:50:46,216 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-19 23:50:46,217 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 23:50:46,217 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 23:50:46,269 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fa6cc2f2-e27d-4803-8a04-b0b751c83295/bin/uautomizer/witness.graphml [2019-11-19 23:50:46,269 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:50:46,271 INFO L168 Benchmark]: Toolchain (without parser) took 2667.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 951.4 MB in the beginning and 991.1 MB in the end (delta: -39.6 MB). Peak memory consumption was 94.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:50:46,271 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:50:46,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-19 23:50:46,272 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:50:46,273 INFO L168 Benchmark]: Boogie Preprocessor took 20.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:50:46,273 INFO L168 Benchmark]: RCFGBuilder took 311.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:50:46,274 INFO L168 Benchmark]: TraceAbstraction took 1954.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.1 MB in the end (delta: 115.0 MB). Peak memory consumption was 115.0 MB. Max. memory is 11.5 GB. [2019-11-19 23:50:46,274 INFO L168 Benchmark]: Witness Printer took 66.00 ms. Allocated memory is still 1.2 GB. Free memory is still 991.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:50:46,276 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 276.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -179.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 311.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1954.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 991.1 MB in the end (delta: 115.0 MB). Peak memory consumption was 115.0 MB. Max. memory is 11.5 GB. * Witness Printer took 66.00 ms. Allocated memory is still 1.2 GB. Free memory is still 991.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: 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: 15]: Loop Invariant Derived loop invariant: 0 <= i - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((1 <= i && 0 <= k) && x <= 2147483647) && k <= 1047 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 4 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 76 SDtfs, 48 SDslu, 122 SDs, 0 SdLazy, 83 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 17 HoareAnnotationTreeSize, 3 FomulaSimplifications, 7 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 11 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 107 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 2668 SizeOfPredicates, 4 NumberOfNonLiveVariables, 128 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 19/31 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...