./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/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 413fc6a41e04b7b618ff9ab274418b4a8dcf040d .......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:40:00,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:40:00,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:40:00,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:40:00,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:40:00,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:40:00,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:40:00,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:40:00,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:40:00,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:40:00,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:40:00,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:40:00,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:40:00,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:40:00,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:40:00,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:40:00,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:40:00,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:40:00,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:40:00,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:40:00,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:40:00,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:40:00,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:40:00,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:40:00,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:40:00,817 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:40:00,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:40:00,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:40:00,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:40:00,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:40:00,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:40:00,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:40:00,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:40:00,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:40:00,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:40:00,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:40:00,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:40:00,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:40:00,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:40:00,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:40:00,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:40:00,832 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-15 20:40:00,859 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:40:00,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:40:00,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:40:00,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:40:00,861 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:40:00,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:40:00,871 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:40:00,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:40:00,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:40:00,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:40:00,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:40:00,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:40:00,872 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-15 20:40:00,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:40:00,873 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:40:00,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:40:00,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:40:00,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:40:00,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:40:00,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:40:00,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:40:00,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:40:00,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:40:00,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:40:00,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:40:00,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:40:00,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:40:00,876 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_f14fa23b-1d1c-4f73-a31d-daff289ad843/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 -> 413fc6a41e04b7b618ff9ab274418b4a8dcf040d [2019-11-15 20:40:00,914 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:40:00,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:40:00,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:40:00,936 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:40:00,936 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:40:00,937 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c [2019-11-15 20:40:00,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/bin/uautomizer/data/358844195/69ef211a6aad4e81bda45d49bc9a0708/FLAG7f8e80938 [2019-11-15 20:40:01,407 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:40:01,408 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c [2019-11-15 20:40:01,414 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/bin/uautomizer/data/358844195/69ef211a6aad4e81bda45d49bc9a0708/FLAG7f8e80938 [2019-11-15 20:40:01,845 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/bin/uautomizer/data/358844195/69ef211a6aad4e81bda45d49bc9a0708 [2019-11-15 20:40:01,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:40:01,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:40:01,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:40:01,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:40:01,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:40:01,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:40:01" (1/1) ... [2019-11-15 20:40:01,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@458dbaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:40:01, skipping insertion in model container [2019-11-15 20:40:01,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:40:01" (1/1) ... [2019-11-15 20:40:01,864 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:40:01,879 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:40:02,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:40:02,020 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:40:02,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:40:02,110 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:40:02,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:40:02 WrapperNode [2019-11-15 20:40:02,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:40:02,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:40:02,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:40:02,111 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:40:02,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:40:02" (1/1) ... [2019-11-15 20:40:02,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:40:02" (1/1) ... [2019-11-15 20:40:02,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:40:02,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:40:02,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:40:02,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:40:02,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:40:02" (1/1) ... [2019-11-15 20:40:02,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:40:02" (1/1) ... [2019-11-15 20:40:02,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:40:02" (1/1) ... [2019-11-15 20:40:02,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:40:02" (1/1) ... [2019-11-15 20:40:02,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:40:02" (1/1) ... [2019-11-15 20:40:02,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:40:02" (1/1) ... [2019-11-15 20:40:02,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:40:02" (1/1) ... [2019-11-15 20:40:02,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:40:02,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:40:02,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:40:02,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:40:02,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:40:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/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 [2019-11-15 20:40:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:40:02,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:40:02,450 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:40:02,451 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 20:40:02,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:40:02 BoogieIcfgContainer [2019-11-15 20:40:02,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:40:02,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:40:02,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:40:02,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:40:02,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:40:01" (1/3) ... [2019-11-15 20:40:02,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1f5e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:40:02, skipping insertion in model container [2019-11-15 20:40:02,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:40:02" (2/3) ... [2019-11-15 20:40:02,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1f5e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:40:02, skipping insertion in model container [2019-11-15 20:40:02,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:40:02" (3/3) ... [2019-11-15 20:40:02,466 INFO L109 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8b.c [2019-11-15 20:40:02,475 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:40:02,482 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-15 20:40:02,503 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-15 20:40:02,532 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:40:02,532 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:40:02,532 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:40:02,532 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:40:02,533 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:40:02,533 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:40:02,533 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:40:02,534 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:40:02,549 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-15 20:40:02,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 20:40:02,555 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:40:02,556 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 20:40:02,557 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 20:40:02,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:40:02,562 INFO L82 PathProgramCache]: Analyzing trace with hash 29684906, now seen corresponding path program 1 times [2019-11-15 20:40:02,569 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:40:02,569 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551194439] [2019-11-15 20:40:02,569 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:40:02,569 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:40:02,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:40:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:40:02,848 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-11-15 20:40:02,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:40:02,929 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551194439] [2019-11-15 20:40:02,930 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:40:02,930 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:40:02,931 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442435883] [2019-11-15 20:40:02,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:40:02,936 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:40:02,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:40:02,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:40:02,954 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. [2019-11-15 20:40:03,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:40:03,086 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2019-11-15 20:40:03,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 20:40:03,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-11-15 20:40:03,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:40:03,098 INFO L225 Difference]: With dead ends: 30 [2019-11-15 20:40:03,098 INFO L226 Difference]: Without dead ends: 13 [2019-11-15 20:40:03,101 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:40:03,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-15 20:40:03,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2019-11-15 20:40:03,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-15 20:40:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-15 20:40:03,132 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 5 [2019-11-15 20:40:03,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:40:03,133 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-15 20:40:03,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:40:03,133 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-11-15 20:40:03,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-15 20:40:03,134 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:40:03,134 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-15 20:40:03,134 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 20:40:03,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:40:03,135 INFO L82 PathProgramCache]: Analyzing trace with hash 920232138, now seen corresponding path program 1 times [2019-11-15 20:40:03,135 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:40:03,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127226607] [2019-11-15 20:40:03,136 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:40:03,136 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:40:03,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:40:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:40:03,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:40:03,173 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127226607] [2019-11-15 20:40:03,173 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:40:03,173 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 20:40:03,173 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967051723] [2019-11-15 20:40:03,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 20:40:03,175 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:40:03,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 20:40:03,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 20:40:03,176 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2019-11-15 20:40:03,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:40:03,189 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2019-11-15 20:40:03,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 20:40:03,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-15 20:40:03,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:40:03,190 INFO L225 Difference]: With dead ends: 11 [2019-11-15 20:40:03,190 INFO L226 Difference]: Without dead ends: 10 [2019-11-15 20:40:03,191 INFO L600 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 [2019-11-15 20:40:03,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-15 20:40:03,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-15 20:40:03,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-15 20:40:03,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-11-15 20:40:03,194 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 6 [2019-11-15 20:40:03,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:40:03,194 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-11-15 20:40:03,195 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 20:40:03,195 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2019-11-15 20:40:03,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 20:40:03,195 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:40:03,195 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-11-15 20:40:03,196 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 20:40:03,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:40:03,196 INFO L82 PathProgramCache]: Analyzing trace with hash -140584349, now seen corresponding path program 1 times [2019-11-15 20:40:03,196 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:40:03,197 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388687173] [2019-11-15 20:40:03,197 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:40:03,197 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:40:03,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:40:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:40:03,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:40:03,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388687173] [2019-11-15 20:40:03,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354063549] [2019-11-15 20:40:03,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/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 [2019-11-15 20:40:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:40:03,331 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-15 20:40:03,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:40:03,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 20:40:03,397 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 20:40:03,397 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2019-11-15 20:40:03,397 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516567114] [2019-11-15 20:40:03,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 20:40:03,398 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:40:03,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 20:40:03,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-15 20:40:03,398 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 7 states. [2019-11-15 20:40:03,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:40:03,458 INFO L93 Difference]: Finished difference Result 12 states and 15 transitions. [2019-11-15 20:40:03,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:40:03,463 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2019-11-15 20:40:03,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:40:03,463 INFO L225 Difference]: With dead ends: 12 [2019-11-15 20:40:03,463 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 20:40:03,464 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:40:03,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 20:40:03,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 20:40:03,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 20:40:03,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 20:40:03,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-11-15 20:40:03,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:40:03,465 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:40:03,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 20:40:03,465 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:40:03,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 20:40:03,666 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:40:03,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 20:40:03,724 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 20:40:03,724 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-15 20:40:03,724 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-11-15 20:40:03,724 INFO L443 ceAbstractionStarter]: For program point L17(lines 17 25) no Hoare annotation was computed. [2019-11-15 20:40:03,725 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 18 24) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= ULTIMATE.start_main_~M~0 2147483647)) [2019-11-15 20:40:03,725 INFO L443 ceAbstractionStarter]: For program point L17-1(lines 17 25) no Hoare annotation was computed. [2019-11-15 20:40:03,725 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 20:40:03,725 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 20:40:03,725 INFO L439 ceAbstractionStarter]: At program point L26(lines 13 27) the Hoare annotation is: (or (= ULTIMATE.start_main_~M~0 ULTIMATE.start_main_~x~0) (<= (+ ULTIMATE.start_main_~M~0 1) ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 2147483646)) [2019-11-15 20:40:03,725 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-15 20:40:03,725 INFO L443 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-15 20:40:03,726 INFO L443 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-11-15 20:40:03,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:40:03 BoogieIcfgContainer [2019-11-15 20:40:03,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:40:03,750 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:40:03,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:40:03,751 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:40:03,751 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:40:02" (3/4) ... [2019-11-15 20:40:03,756 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 20:40:03,771 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 20:40:03,771 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 20:40:03,814 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f14fa23b-1d1c-4f73-a31d-daff289ad843/bin/uautomizer/witness.graphml [2019-11-15 20:40:03,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:40:03,815 INFO L168 Benchmark]: Toolchain (without parser) took 1966.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -120.8 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:40:03,816 INFO L168 Benchmark]: CDTParser took 0.59 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. [2019-11-15 20:40:03,817 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -205.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:40:03,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:40:03,818 INFO L168 Benchmark]: Boogie Preprocessor took 19.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:40:03,818 INFO L168 Benchmark]: RCFGBuilder took 284.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:40:03,819 INFO L168 Benchmark]: TraceAbstraction took 1296.89 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: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:40:03,820 INFO L168 Benchmark]: Witness Printer took 63.69 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:40:03,823 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 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 260.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -205.9 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 284.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1296.89 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: 63.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 11.5 GB. * Witness Printer took 63.69 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (M == x || M + 1 <= x) || x <= 2147483646 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 && M <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 37 SDslu, 6 SDs, 0 SdLazy, 46 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 21 HoareAnnotationTreeSize, 2 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 797 SizeOfPredicates, 1 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/6 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...