./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/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 df3ddc93bc6339292c9158119f1fdb949bb8842d ........................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:18:15,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:18:15,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:18:15,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:18:15,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:18:15,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:18:15,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:18:15,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:18:15,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:18:15,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:18:15,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:18:15,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:18:15,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:18:15,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:18:15,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:18:15,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:18:15,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:18:15,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:18:15,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:18:15,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:18:15,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:18:15,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:18:15,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:18:15,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:18:15,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:18:15,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:18:15,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:18:15,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:18:15,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:18:15,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:18:15,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:18:15,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:18:15,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:18:15,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:18:15,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:18:15,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:18:15,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:18:15,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:18:15,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:18:15,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:18:15,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:18:15,519 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-12-07 17:18:15,531 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:18:15,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:18:15,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:18:15,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:18:15,533 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:18:15,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:18:15,533 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 17:18:15,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:18:15,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:18:15,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:18:15,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:18:15,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:18:15,534 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 17:18:15,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:18:15,534 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:18:15,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:18:15,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:18:15,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:18:15,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:18:15,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:18:15,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:18:15,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:18:15,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:18:15,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:18:15,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:18:15,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:18:15,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:18:15,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:18:15,536 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_c4a7371f-9503-437d-b5bc-3ce6c67c8328/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 -> df3ddc93bc6339292c9158119f1fdb949bb8842d [2019-12-07 17:18:15,644 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:18:15,655 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:18:15,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:18:15,659 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:18:15,659 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:18:15,660 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a.c [2019-12-07 17:18:15,704 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/bin/uautomizer/data/bfdded0e9/5218317994674fa9ae57188bf240131e/FLAGfc5485411 [2019-12-07 17:18:16,080 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:18:16,081 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a.c [2019-12-07 17:18:16,084 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/bin/uautomizer/data/bfdded0e9/5218317994674fa9ae57188bf240131e/FLAGfc5485411 [2019-12-07 17:18:16,503 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/bin/uautomizer/data/bfdded0e9/5218317994674fa9ae57188bf240131e [2019-12-07 17:18:16,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:18:16,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:18:16,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:18:16,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:18:16,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:18:16,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:18:16" (1/1) ... [2019-12-07 17:18:16,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e583495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:18:16, skipping insertion in model container [2019-12-07 17:18:16,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:18:16" (1/1) ... [2019-12-07 17:18:16,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:18:16,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:18:16,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:18:16,629 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:18:16,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:18:16,679 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:18:16,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:18:16 WrapperNode [2019-12-07 17:18:16,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:18:16,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:18:16,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:18:16,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:18:16,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:18:16" (1/1) ... [2019-12-07 17:18:16,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:18:16" (1/1) ... [2019-12-07 17:18:16,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:18:16,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:18:16,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:18:16,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:18:16,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:18:16" (1/1) ... [2019-12-07 17:18:16,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:18:16" (1/1) ... [2019-12-07 17:18:16,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:18:16" (1/1) ... [2019-12-07 17:18:16,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:18:16" (1/1) ... [2019-12-07 17:18:16,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:18:16" (1/1) ... [2019-12-07 17:18:16,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:18:16" (1/1) ... [2019-12-07 17:18:16,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:18:16" (1/1) ... [2019-12-07 17:18:16,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:18:16,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:18:16,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:18:16,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:18:16,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:18:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/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 [2019-12-07 17:18:16,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:18:16,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:18:16,849 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:18:16,849 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 17:18:16,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:18:16 BoogieIcfgContainer [2019-12-07 17:18:16,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:18:16,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:18:16,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:18:16,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:18:16,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:18:16" (1/3) ... [2019-12-07 17:18:16,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dcc194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:18:16, skipping insertion in model container [2019-12-07 17:18:16,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:18:16" (2/3) ... [2019-12-07 17:18:16,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dcc194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:18:16, skipping insertion in model container [2019-12-07 17:18:16,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:18:16" (3/3) ... [2019-12-07 17:18:16,855 INFO L109 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8a.c [2019-12-07 17:18:16,861 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:18:16,864 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-12-07 17:18:16,872 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 17:18:16,886 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:18:16,886 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:18:16,886 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:18:16,886 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:18:16,886 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:18:16,886 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:18:16,886 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:18:16,886 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:18:16,895 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-12-07 17:18:16,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 17:18:16,899 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:18:16,899 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 17:18:16,899 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 17:18:16,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:18:16,903 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-12-07 17:18:16,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:18:16,909 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355756410] [2019-12-07 17:18:16,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:18:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:18:16,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:18:16,995 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355756410] [2019-12-07 17:18:16,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:18:16,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 17:18:16,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569648776] [2019-12-07 17:18:17,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:18:17,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:18:17,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:18:17,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:18:17,016 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-12-07 17:18:17,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:18:17,045 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-12-07 17:18:17,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:18:17,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 17:18:17,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:18:17,052 INFO L225 Difference]: With dead ends: 19 [2019-12-07 17:18:17,052 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 17:18:17,054 INFO L630 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 [2019-12-07 17:18:17,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 17:18:17,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 17:18:17,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 17:18:17,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-12-07 17:18:17,075 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2019-12-07 17:18:17,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:18:17,075 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-12-07 17:18:17,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:18:17,075 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-12-07 17:18:17,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 17:18:17,076 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:18:17,076 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 17:18:17,076 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 17:18:17,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:18:17,076 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-12-07 17:18:17,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:18:17,076 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760685093] [2019-12-07 17:18:17,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:18:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:18:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:18:17,091 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760685093] [2019-12-07 17:18:17,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:18:17,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 17:18:17,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468891596] [2019-12-07 17:18:17,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:18:17,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:18:17,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:18:17,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:18:17,093 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2019-12-07 17:18:17,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:18:17,119 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-12-07 17:18:17,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:18:17,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 17:18:17,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:18:17,120 INFO L225 Difference]: With dead ends: 15 [2019-12-07 17:18:17,120 INFO L226 Difference]: Without dead ends: 14 [2019-12-07 17:18:17,120 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:18:17,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-07 17:18:17,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-07 17:18:17,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 17:18:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-12-07 17:18:17,123 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 4 [2019-12-07 17:18:17,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:18:17,123 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-12-07 17:18:17,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:18:17,123 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-12-07 17:18:17,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 17:18:17,124 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:18:17,124 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 17:18:17,124 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 17:18:17,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:18:17,124 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-12-07 17:18:17,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:18:17,125 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256589110] [2019-12-07 17:18:17,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:18:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:18:17,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:18:17,139 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256589110] [2019-12-07 17:18:17,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:18:17,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 17:18:17,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847378888] [2019-12-07 17:18:17,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:18:17,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:18:17,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:18:17,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:18:17,140 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand 3 states. [2019-12-07 17:18:17,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:18:17,152 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2019-12-07 17:18:17,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:18:17,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 17:18:17,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:18:17,153 INFO L225 Difference]: With dead ends: 14 [2019-12-07 17:18:17,153 INFO L226 Difference]: Without dead ends: 13 [2019-12-07 17:18:17,153 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:18:17,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-12-07 17:18:17,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-12-07 17:18:17,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-12-07 17:18:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-12-07 17:18:17,155 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 5 [2019-12-07 17:18:17,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:18:17,155 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-12-07 17:18:17,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:18:17,156 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-12-07 17:18:17,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 17:18:17,156 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:18:17,156 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 17:18:17,156 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 17:18:17,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:18:17,156 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-12-07 17:18:17,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:18:17,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75010336] [2019-12-07 17:18:17,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:18:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:18:17,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:18:17,168 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75010336] [2019-12-07 17:18:17,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:18:17,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 17:18:17,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707180544] [2019-12-07 17:18:17,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:18:17,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:18:17,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:18:17,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 17:18:17,169 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 3 states. [2019-12-07 17:18:17,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:18:17,179 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2019-12-07 17:18:17,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:18:17,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 17:18:17,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:18:17,180 INFO L225 Difference]: With dead ends: 13 [2019-12-07 17:18:17,180 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 17:18:17,180 INFO L630 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 [2019-12-07 17:18:17,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 17:18:17,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 17:18:17,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 17:18:17,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-12-07 17:18:17,183 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2019-12-07 17:18:17,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:18:17,183 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-12-07 17:18:17,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:18:17,183 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-12-07 17:18:17,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 17:18:17,183 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:18:17,183 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2019-12-07 17:18:17,183 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 17:18:17,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:18:17,184 INFO L82 PathProgramCache]: Analyzing trace with hash 784501120, now seen corresponding path program 1 times [2019-12-07 17:18:17,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:18:17,184 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315621807] [2019-12-07 17:18:17,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:18:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:18:17,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:18:17,202 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315621807] [2019-12-07 17:18:17,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:18:17,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:18:17,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670781270] [2019-12-07 17:18:17,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:18:17,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:18:17,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:18:17,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:18:17,204 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2019-12-07 17:18:17,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:18:17,230 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2019-12-07 17:18:17,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:18:17,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 17:18:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:18:17,230 INFO L225 Difference]: With dead ends: 20 [2019-12-07 17:18:17,231 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 17:18:17,231 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:18:17,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 17:18:17,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 17:18:17,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 17:18:17,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 17:18:17,231 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-12-07 17:18:17,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:18:17,232 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:18:17,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:18:17,232 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:18:17,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 17:18:17,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 17:18:17,258 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-12-07 17:18:17,258 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 17:18:17,259 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 17:18:17,259 INFO L242 CegarLoopResult]: At program point L23(lines 13 24) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 0) [2019-12-07 17:18:17,259 INFO L246 CegarLoopResult]: For program point L17(lines 17 21) no Hoare annotation was computed. [2019-12-07 17:18:17,259 INFO L242 CegarLoopResult]: At program point L17-2(lines 16 22) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648))) [2019-12-07 17:18:17,259 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2019-12-07 17:18:17,260 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-12-07 17:18:17,260 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 17:18:17,260 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 17:18:17,260 INFO L246 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2019-12-07 17:18:17,260 INFO L246 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-12-07 17:18:17,260 INFO L246 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2019-12-07 17:18:17,260 INFO L246 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2019-12-07 17:18:17,260 INFO L246 CegarLoopResult]: For program point L16-2(lines 16 22) no Hoare annotation was computed. [2019-12-07 17:18:17,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:18:17 BoogieIcfgContainer [2019-12-07 17:18:17,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:18:17,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:18:17,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:18:17,274 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:18:17,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:18:16" (3/4) ... [2019-12-07 17:18:17,278 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 17:18:17,287 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 17:18:17,287 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 17:18:17,315 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c4a7371f-9503-437d-b5bc-3ce6c67c8328/bin/uautomizer/witness.graphml [2019-12-07 17:18:17,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:18:17,316 INFO L168 Benchmark]: Toolchain (without parser) took 809.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -73.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-12-07 17:18:17,317 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:18:17,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -147.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:18:17,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:18:17,318 INFO L168 Benchmark]: Boogie Preprocessor took 12.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:18:17,318 INFO L168 Benchmark]: RCFGBuilder took 136.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:18:17,319 INFO L168 Benchmark]: TraceAbstraction took 423.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:18:17,319 INFO L168 Benchmark]: Witness Printer took 40.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:18:17,321 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -147.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 136.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 423.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * Witness Printer took 40.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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: 16]: Loop Invariant Derived loop invariant: x <= 2147483647 && 0 <= x + 2147483648 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 18 SDslu, 0 SDs, 0 SdLazy, 66 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 273 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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...