./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 05:53:19,792 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:53:19,793 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:53:19,802 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:53:19,802 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:53:19,803 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:53:19,804 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:53:19,805 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:53:19,807 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:53:19,807 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:53:19,808 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:53:19,808 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:53:19,809 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:53:19,809 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:53:19,811 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:53:19,811 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:53:19,812 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:53:19,813 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:53:19,815 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:53:19,816 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:53:19,817 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:53:19,817 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:53:19,819 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:53:19,820 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:53:19,820 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:53:19,820 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:53:19,821 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:53:19,821 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:53:19,822 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:53:19,823 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:53:19,823 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:53:19,824 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:53:19,824 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:53:19,824 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:53:19,825 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:53:19,825 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:53:19,826 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 05:53:19,835 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:53:19,836 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:53:19,836 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:53:19,836 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 05:53:19,837 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 05:53:19,837 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 05:53:19,837 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 05:53:19,837 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:53:19,837 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 05:53:19,838 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:53:19,838 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:53:19,838 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:53:19,838 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:53:19,838 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:53:19,838 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 05:53:19,838 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:53:19,839 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:53:19,839 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:53:19,839 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:53:19,839 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:53:19,839 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:53:19,839 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:53:19,839 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:53:19,840 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:53:19,840 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:53:19,840 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 05:53:19,840 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:53:19,840 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:53:19,840 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7e1c1540b70904598fe5e82d3f5b8e6f2e3e9f6 [2018-11-10 05:53:19,864 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:53:19,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:53:19,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:53:19,876 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:53:19,876 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:53:19,877 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1_true-termination_true-no-overflow.c [2018-11-10 05:53:19,912 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer/data/b8b0b4011/9c45a32f1b9341818cd8b48ff5cd2e9e/FLAG475567d94 [2018-11-10 05:53:20,329 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:53:20,330 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig1_true-termination_true-no-overflow.c [2018-11-10 05:53:20,335 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer/data/b8b0b4011/9c45a32f1b9341818cd8b48ff5cd2e9e/FLAG475567d94 [2018-11-10 05:53:20,347 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer/data/b8b0b4011/9c45a32f1b9341818cd8b48ff5cd2e9e [2018-11-10 05:53:20,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:53:20,350 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 05:53:20,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:53:20,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:53:20,353 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:53:20,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:53:20" (1/1) ... [2018-11-10 05:53:20,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12305cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:53:20, skipping insertion in model container [2018-11-10 05:53:20,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:53:20" (1/1) ... [2018-11-10 05:53:20,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:53:20,371 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:53:20,458 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:53:20,460 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:53:20,468 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:53:20,475 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:53:20,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:53:20 WrapperNode [2018-11-10 05:53:20,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:53:20,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:53:20,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:53:20,476 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:53:20,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:53:20" (1/1) ... [2018-11-10 05:53:20,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:53:20" (1/1) ... [2018-11-10 05:53:20,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:53:20" (1/1) ... [2018-11-10 05:53:20,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:53:20" (1/1) ... [2018-11-10 05:53:20,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:53:20" (1/1) ... [2018-11-10 05:53:20,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:53:20" (1/1) ... [2018-11-10 05:53:20,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:53:20" (1/1) ... [2018-11-10 05:53:20,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:53:20,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:53:20,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:53:20,492 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:53:20,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:53:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:53:20,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:53:20,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:53:20,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:53:20,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 05:53:20,558 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:53:20,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:53:20,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:53:20,647 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:53:20,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:53:20 BoogieIcfgContainer [2018-11-10 05:53:20,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:53:20,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:53:20,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:53:20,650 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:53:20,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:53:20" (1/3) ... [2018-11-10 05:53:20,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1796fc95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:53:20, skipping insertion in model container [2018-11-10 05:53:20,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:53:20" (2/3) ... [2018-11-10 05:53:20,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1796fc95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:53:20, skipping insertion in model container [2018-11-10 05:53:20,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:53:20" (3/3) ... [2018-11-10 05:53:20,652 INFO L112 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-LICS2004-Fig1_true-termination_true-no-overflow.c [2018-11-10 05:53:20,658 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:53:20,663 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 05:53:20,672 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 05:53:20,690 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 05:53:20,690 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:53:20,690 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:53:20,691 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:53:20,691 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:53:20,691 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:53:20,691 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:53:20,691 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:53:20,691 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:53:20,701 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-10 05:53:20,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 05:53:20,705 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:53:20,706 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:53:20,707 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:53:20,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:53:20,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1432253197, now seen corresponding path program 1 times [2018-11-10 05:53:20,712 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:53:20,713 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:53:20,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:53:20,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:53:20,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:53:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:53:20,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:53:20,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:53:20,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:53:20,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 05:53:20,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 05:53:20,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:53:20,796 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-11-10 05:53:20,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:53:20,809 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2018-11-10 05:53:20,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 05:53:20,811 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-11-10 05:53:20,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:53:20,820 INFO L225 Difference]: With dead ends: 39 [2018-11-10 05:53:20,820 INFO L226 Difference]: Without dead ends: 17 [2018-11-10 05:53:20,822 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 05:53:20,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-10 05:53:20,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-10 05:53:20,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-10 05:53:20,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-11-10 05:53:20,848 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2018-11-10 05:53:20,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:53:20,848 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-10 05:53:20,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 05:53:20,848 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-10 05:53:20,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 05:53:20,849 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:53:20,849 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:53:20,849 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:53:20,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:53:20,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1450187957, now seen corresponding path program 1 times [2018-11-10 05:53:20,850 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:53:20,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:53:20,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:53:20,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:53:20,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:53:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:53:20,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:53:20,880 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:53:20,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:53:20,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:53:20,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:53:20,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:53:20,882 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 3 states. [2018-11-10 05:53:20,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:53:20,918 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-10 05:53:20,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:53:20,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 05:53:20,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:53:20,919 INFO L225 Difference]: With dead ends: 19 [2018-11-10 05:53:20,919 INFO L226 Difference]: Without dead ends: 18 [2018-11-10 05:53:20,920 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:53:20,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-10 05:53:20,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2018-11-10 05:53:20,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-10 05:53:20,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-10 05:53:20,923 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 10 [2018-11-10 05:53:20,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:53:20,923 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-10 05:53:20,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:53:20,924 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-10 05:53:20,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 05:53:20,924 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:53:20,924 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:53:20,924 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:53:20,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:53:20,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1450187902, now seen corresponding path program 1 times [2018-11-10 05:53:20,925 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:53:20,925 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:53:20,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:53:20,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:53:20,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:53:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:53:20,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:53:20,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:53:20,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:53:20,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:53:20,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:53:20,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:53:20,957 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2018-11-10 05:53:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:53:20,998 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2018-11-10 05:53:20,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:53:20,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 05:53:20,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:53:20,999 INFO L225 Difference]: With dead ends: 26 [2018-11-10 05:53:20,999 INFO L226 Difference]: Without dead ends: 25 [2018-11-10 05:53:20,999 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:53:21,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-10 05:53:21,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2018-11-10 05:53:21,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 05:53:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-10 05:53:21,003 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 10 [2018-11-10 05:53:21,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:53:21,004 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-10 05:53:21,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:53:21,004 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-10 05:53:21,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 05:53:21,004 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:53:21,005 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:53:21,005 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:53:21,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:53:21,005 INFO L82 PathProgramCache]: Analyzing trace with hash -2006153642, now seen corresponding path program 1 times [2018-11-10 05:53:21,006 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:53:21,006 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:53:21,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:53:21,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:53:21,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:53:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:53:21,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:53:21,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:53:21,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:53:21,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:53:21,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:53:21,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:53:21,036 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-10 05:53:21,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:53:21,057 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-10 05:53:21,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:53:21,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 05:53:21,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:53:21,059 INFO L225 Difference]: With dead ends: 19 [2018-11-10 05:53:21,059 INFO L226 Difference]: Without dead ends: 18 [2018-11-10 05:53:21,059 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:53:21,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-10 05:53:21,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-10 05:53:21,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 05:53:21,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-10 05:53:21,061 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2018-11-10 05:53:21,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:53:21,062 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-10 05:53:21,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:53:21,062 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-10 05:53:21,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 05:53:21,062 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:53:21,062 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:53:21,063 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:53:21,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:53:21,063 INFO L82 PathProgramCache]: Analyzing trace with hash -2006151944, now seen corresponding path program 1 times [2018-11-10 05:53:21,063 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:53:21,063 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:53:21,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:53:21,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:53:21,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:53:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:53:21,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:53:21,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:53:21,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:53:21,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:53:21,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:53:21,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:53:21,080 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-11-10 05:53:21,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:53:21,098 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-10 05:53:21,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:53:21,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 05:53:21,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:53:21,099 INFO L225 Difference]: With dead ends: 20 [2018-11-10 05:53:21,099 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 05:53:21,099 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:53:21,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 05:53:21,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-11-10 05:53:21,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-10 05:53:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-10 05:53:21,102 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2018-11-10 05:53:21,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:53:21,102 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-10 05:53:21,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:53:21,102 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-10 05:53:21,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 05:53:21,103 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:53:21,103 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:53:21,103 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:53:21,103 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:53:21,103 INFO L82 PathProgramCache]: Analyzing trace with hash -802592006, now seen corresponding path program 1 times [2018-11-10 05:53:21,103 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:53:21,103 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:53:21,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:53:21,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:53:21,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:53:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:53:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 05:53:21,135 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 05:53:21,135 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 05:53:21,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:53:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:53:21,159 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:53:21,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:53:21,253 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 05:53:21,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2018-11-10 05:53:21,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 05:53:21,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 05:53:21,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-10 05:53:21,254 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 6 states. [2018-11-10 05:53:21,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:53:21,359 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2018-11-10 05:53:21,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 05:53:21,359 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-10 05:53:21,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:53:21,359 INFO L225 Difference]: With dead ends: 38 [2018-11-10 05:53:21,359 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 05:53:21,360 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-10 05:53:21,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 05:53:21,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 05:53:21,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 05:53:21,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 05:53:21,361 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-10 05:53:21,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:53:21,361 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:53:21,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 05:53:21,361 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 05:53:21,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 05:53:21,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 05:53:21,387 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 05:53:21,387 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:53:21,387 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:53:21,387 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 05:53:21,387 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:53:21,388 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:53:21,388 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 25) no Hoare annotation was computed. [2018-11-10 05:53:21,388 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 21) no Hoare annotation was computed. [2018-11-10 05:53:21,388 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-10 05:53:21,388 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 23) no Hoare annotation was computed. [2018-11-10 05:53:21,389 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 21) the Hoare annotation is: (and (<= 1 main_~y~0) (<= main_~x~0 1073741823) (<= 0 main_~x~0)) [2018-11-10 05:53:21,389 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 21) no Hoare annotation was computed. [2018-11-10 05:53:21,389 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-10 05:53:21,389 INFO L428 ceAbstractionStarter]: At program point L17-3(lines 17 23) the Hoare annotation is: true [2018-11-10 05:53:21,389 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 23) no Hoare annotation was computed. [2018-11-10 05:53:21,389 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 25) no Hoare annotation was computed. [2018-11-10 05:53:21,389 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 25) the Hoare annotation is: true [2018-11-10 05:53:21,389 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-10 05:53:21,389 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-10 05:53:21,389 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-10 05:53:21,390 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-10 05:53:21,390 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-10 05:53:21,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:53:21 BoogieIcfgContainer [2018-11-10 05:53:21,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:53:21,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:53:21,400 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:53:21,400 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:53:21,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:53:20" (3/4) ... [2018-11-10 05:53:21,403 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 05:53:21,408 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 05:53:21,409 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 05:53:21,412 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 05:53:21,412 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 05:53:21,412 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 05:53:21,443 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_12fe96c3-58b0-4200-9761-12cb4f668f7a/bin-2019/uautomizer/witness.graphml [2018-11-10 05:53:21,443 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:53:21,444 INFO L168 Benchmark]: Toolchain (without parser) took 1093.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -104.5 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:53:21,444 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:53:21,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 125.10 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:53:21,445 INFO L168 Benchmark]: Boogie Preprocessor took 15.60 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:53:21,445 INFO L168 Benchmark]: RCFGBuilder took 155.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -198.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-11-10 05:53:21,446 INFO L168 Benchmark]: TraceAbstraction took 751.23 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: 76.5 MB). Peak memory consumption was 76.5 MB. Max. memory is 11.5 GB. [2018-11-10 05:53:21,446 INFO L168 Benchmark]: Witness Printer took 43.62 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:53:21,447 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 125.10 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.60 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 155.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -198.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 751.23 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: 76.5 MB). Peak memory consumption was 76.5 MB. Max. memory is 11.5 GB. * Witness Printer took 43.62 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (1 <= y && x <= 1073741823) && 0 <= x - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 4 error locations. SAFE Result, 0.7s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 83 SDtfs, 63 SDslu, 40 SDs, 0 SdLazy, 55 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 15 NumberOfFragments, 15 HoareAnnotationTreeSize, 6 FomulaSimplifications, 47 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 72 ConstructedInterpolants, 3 QuantifiedInterpolants, 1669 SizeOfPredicates, 0 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...