./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-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_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/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 6c09c2a46ed7454ea61f3b2ddb99e3e2ba9fd4da ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:44:23,337 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:44:23,338 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:44:23,347 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:44:23,347 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:44:23,348 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:44:23,349 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:44:23,351 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:44:23,352 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:44:23,353 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:44:23,353 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:44:23,353 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:44:23,355 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:44:23,355 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:44:23,356 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:44:23,357 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:44:23,358 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:44:23,359 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:44:23,361 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:44:23,362 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:44:23,363 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:44:23,364 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:44:23,366 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:44:23,367 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:44:23,367 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:44:23,368 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:44:23,368 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:44:23,369 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:44:23,369 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:44:23,371 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:44:23,371 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:44:23,372 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:44:23,372 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:44:23,372 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:44:23,373 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:44:23,373 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:44:23,374 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-10-27 05:44:23,385 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:44:23,385 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:44:23,386 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:44:23,386 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 05:44:23,387 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 05:44:23,387 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 05:44:23,387 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 05:44:23,387 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:44:23,388 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:44:23,388 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:44:23,388 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:44:23,388 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:44:23,388 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:44:23,388 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:44:23,388 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:44:23,388 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:44:23,389 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:44:23,389 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:44:23,389 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:44:23,389 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:44:23,389 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:44:23,389 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:44:23,391 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:44:23,392 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:44:23,392 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:44:23,392 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 05:44:23,392 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:44:23,392 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:44:23,394 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_1a64b0bd-64a8-47df-995f-fd5114b297ad/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 -> 6c09c2a46ed7454ea61f3b2ddb99e3e2ba9fd4da [2018-10-27 05:44:23,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:44:23,436 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:44:23,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:44:23,440 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:44:23,440 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:44:23,441 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c [2018-10-27 05:44:23,486 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/data/18390f7d7/7da9810b9e844d0e8f06835af84b708a/FLAGa095e02b6 [2018-10-27 05:44:23,833 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:44:23,834 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c [2018-10-27 05:44:23,838 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/data/18390f7d7/7da9810b9e844d0e8f06835af84b708a/FLAGa095e02b6 [2018-10-27 05:44:23,849 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/data/18390f7d7/7da9810b9e844d0e8f06835af84b708a [2018-10-27 05:44:23,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:44:23,853 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 05:44:23,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:44:23,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:44:23,859 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:44:23,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:44:23" (1/1) ... [2018-10-27 05:44:23,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4087c74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:23, skipping insertion in model container [2018-10-27 05:44:23,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:44:23" (1/1) ... [2018-10-27 05:44:23,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:44:23,883 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:44:23,999 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:44:24,001 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:44:24,012 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:44:24,020 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:44:24,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:24 WrapperNode [2018-10-27 05:44:24,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:44:24,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:44:24,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:44:24,022 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:44:24,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:24" (1/1) ... [2018-10-27 05:44:24,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:24" (1/1) ... [2018-10-27 05:44:24,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:24" (1/1) ... [2018-10-27 05:44:24,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:24" (1/1) ... [2018-10-27 05:44:24,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:24" (1/1) ... [2018-10-27 05:44:24,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:24" (1/1) ... [2018-10-27 05:44:24,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:24" (1/1) ... [2018-10-27 05:44:24,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:44:24,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:44:24,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:44:24,053 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:44:24,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/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 [2018-10-27 05:44:24,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:44:24,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:44:24,109 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:44:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-27 05:44:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:44:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:44:24,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:44:24,492 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:44:24,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:44:24 BoogieIcfgContainer [2018-10-27 05:44:24,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:44:24,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:44:24,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:44:24,500 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:44:24,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:44:23" (1/3) ... [2018-10-27 05:44:24,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a380b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:44:24, skipping insertion in model container [2018-10-27 05:44:24,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:44:24" (2/3) ... [2018-10-27 05:44:24,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a380b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:44:24, skipping insertion in model container [2018-10-27 05:44:24,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:44:24" (3/3) ... [2018-10-27 05:44:24,506 INFO L112 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1_true-termination_true-no-overflow.c [2018-10-27 05:44:24,513 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:44:24,520 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-10-27 05:44:24,535 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-10-27 05:44:24,567 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 05:44:24,575 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:44:24,575 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:44:24,575 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:44:24,575 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:44:24,575 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:44:24,576 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:44:24,576 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:44:24,576 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:44:24,594 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-27 05:44:24,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:44:24,603 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:44:24,604 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:44:24,607 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:44:24,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:44:24,615 INFO L82 PathProgramCache]: Analyzing trace with hash 409964900, now seen corresponding path program 1 times [2018-10-27 05:44:24,616 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:44:24,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:44:24,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:24,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:24,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:24,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:44:24,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 05:44:24,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 05:44:24,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 05:44:24,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:44:24,875 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2018-10-27 05:44:25,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:44:25,079 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2018-10-27 05:44:25,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 05:44:25,080 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-27 05:44:25,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:44:25,087 INFO L225 Difference]: With dead ends: 49 [2018-10-27 05:44:25,087 INFO L226 Difference]: Without dead ends: 31 [2018-10-27 05:44:25,090 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 05:44:25,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-27 05:44:25,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 20. [2018-10-27 05:44:25,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-10-27 05:44:25,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-10-27 05:44:25,122 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10 [2018-10-27 05:44:25,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:44:25,122 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-10-27 05:44:25,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 05:44:25,123 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-10-27 05:44:25,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:44:25,123 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:44:25,123 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:44:25,123 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:44:25,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:44:25,124 INFO L82 PathProgramCache]: Analyzing trace with hash 409965092, now seen corresponding path program 1 times [2018-10-27 05:44:25,124 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:44:25,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:44:25,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:25,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:25,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:25,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:25,184 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:44:25,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 05:44:25,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 05:44:25,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 05:44:25,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:44:25,185 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-10-27 05:44:25,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:44:25,445 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-10-27 05:44:25,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 05:44:25,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-27 05:44:25,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:44:25,447 INFO L225 Difference]: With dead ends: 32 [2018-10-27 05:44:25,447 INFO L226 Difference]: Without dead ends: 30 [2018-10-27 05:44:25,448 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 05:44:25,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-10-27 05:44:25,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 20. [2018-10-27 05:44:25,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-10-27 05:44:25,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-10-27 05:44:25,452 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10 [2018-10-27 05:44:25,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:44:25,453 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-10-27 05:44:25,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 05:44:25,453 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-10-27 05:44:25,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-27 05:44:25,453 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:44:25,453 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:44:25,455 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:44:25,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:44:25,455 INFO L82 PathProgramCache]: Analyzing trace with hash -246154182, now seen corresponding path program 1 times [2018-10-27 05:44:25,455 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:44:25,455 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:44:25,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:25,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:25,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:25,511 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:44:25,511 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/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 [2018-10-27 05:44:25,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:25,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:44:25,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:25,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:44:25,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-10-27 05:44:25,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 05:44:25,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 05:44:25,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-27 05:44:25,638 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 8 states. [2018-10-27 05:44:25,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:44:25,857 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2018-10-27 05:44:25,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 05:44:25,857 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-10-27 05:44:25,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:44:25,858 INFO L225 Difference]: With dead ends: 40 [2018-10-27 05:44:25,858 INFO L226 Difference]: Without dead ends: 39 [2018-10-27 05:44:25,858 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-27 05:44:25,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-27 05:44:25,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 24. [2018-10-27 05:44:25,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-10-27 05:44:25,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2018-10-27 05:44:25,861 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2018-10-27 05:44:25,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:44:25,863 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2018-10-27 05:44:25,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 05:44:25,863 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-10-27 05:44:25,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-27 05:44:25,864 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:44:25,864 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:44:25,864 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:44:25,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:44:25,865 INFO L82 PathProgramCache]: Analyzing trace with hash -246153990, now seen corresponding path program 1 times [2018-10-27 05:44:25,865 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:44:25,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:44:25,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:25,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:25,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:25,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:25,930 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:44:25,930 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 05:44:25,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:25,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:44:26,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:26,058 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 05:44:26,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-10-27 05:44:26,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 05:44:26,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 05:44:26,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 05:44:26,059 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 8 states. [2018-10-27 05:44:26,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:44:26,470 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-10-27 05:44:26,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 05:44:26,472 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-10-27 05:44:26,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:44:26,473 INFO L225 Difference]: With dead ends: 60 [2018-10-27 05:44:26,473 INFO L226 Difference]: Without dead ends: 59 [2018-10-27 05:44:26,474 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2018-10-27 05:44:26,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-10-27 05:44:26,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 42. [2018-10-27 05:44:26,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-10-27 05:44:26,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2018-10-27 05:44:26,479 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 15 [2018-10-27 05:44:26,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:44:26,480 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2018-10-27 05:44:26,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 05:44:26,480 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2018-10-27 05:44:26,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-27 05:44:26,480 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:44:26,481 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:44:26,481 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:44:26,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:44:26,481 INFO L82 PathProgramCache]: Analyzing trace with hash 961216640, now seen corresponding path program 1 times [2018-10-27 05:44:26,481 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:44:26,481 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:44:26,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:26,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:26,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:26,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:26,539 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:44:26,539 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 05:44:26,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:26,554 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:44:26,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:26,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:44:26,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-10-27 05:44:26,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 05:44:26,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 05:44:26,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-10-27 05:44:26,624 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 8 states. [2018-10-27 05:44:26,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:44:26,743 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2018-10-27 05:44:26,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 05:44:26,745 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-10-27 05:44:26,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:44:26,746 INFO L225 Difference]: With dead ends: 45 [2018-10-27 05:44:26,746 INFO L226 Difference]: Without dead ends: 44 [2018-10-27 05:44:26,746 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-10-27 05:44:26,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-27 05:44:26,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2018-10-27 05:44:26,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-27 05:44:26,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2018-10-27 05:44:26,751 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 15 [2018-10-27 05:44:26,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:44:26,751 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2018-10-27 05:44:26,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 05:44:26,751 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2018-10-27 05:44:26,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-27 05:44:26,752 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:44:26,752 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:44:26,752 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:44:26,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:44:26,752 INFO L82 PathProgramCache]: Analyzing trace with hash 961216832, now seen corresponding path program 1 times [2018-10-27 05:44:26,752 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:44:26,752 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:44:26,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:26,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:26,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:26,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:26,783 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:44:26,783 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 05:44:26,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:26,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:44:26,836 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:26,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:44:26,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-10-27 05:44:26,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 05:44:26,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 05:44:26,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-27 05:44:26,859 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 8 states. [2018-10-27 05:44:26,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:44:26,978 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2018-10-27 05:44:26,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 05:44:26,979 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-10-27 05:44:26,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:44:26,980 INFO L225 Difference]: With dead ends: 55 [2018-10-27 05:44:26,980 INFO L226 Difference]: Without dead ends: 54 [2018-10-27 05:44:26,980 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-27 05:44:26,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-10-27 05:44:26,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 28. [2018-10-27 05:44:26,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-10-27 05:44:26,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2018-10-27 05:44:26,985 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 15 [2018-10-27 05:44:26,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:44:26,985 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2018-10-27 05:44:26,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 05:44:26,985 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2018-10-27 05:44:26,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-27 05:44:26,986 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:44:26,986 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:44:26,986 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:44:26,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:44:26,986 INFO L82 PathProgramCache]: Analyzing trace with hash -757382272, now seen corresponding path program 1 times [2018-10-27 05:44:26,987 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:44:26,987 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:44:26,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:26,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:26,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:44:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:27,046 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 05:44:27,046 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:44:27,047 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 05:44:27,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:44:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:44:27,067 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:44:27,141 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:44:27,157 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 05:44:27,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2018-10-27 05:44:27,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-27 05:44:27,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-27 05:44:27,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-10-27 05:44:27,158 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 11 states. [2018-10-27 05:44:27,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:44:27,444 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2018-10-27 05:44:27,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-27 05:44:27,445 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-10-27 05:44:27,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:44:27,446 INFO L225 Difference]: With dead ends: 53 [2018-10-27 05:44:27,446 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 05:44:27,446 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=168, Invalid=338, Unknown=0, NotChecked=0, Total=506 [2018-10-27 05:44:27,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 05:44:27,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 05:44:27,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 05:44:27,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 05:44:27,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-10-27 05:44:27,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:44:27,448 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 05:44:27,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-27 05:44:27,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 05:44:27,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:44:27,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 05:44:27,496 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 05:44:27,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 05:44:27,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 05:44:27,573 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 05:44:27,573 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:44:27,573 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:44:27,573 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 05:44:27,573 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 05:44:27,573 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 05:44:27,573 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 14 28) no Hoare annotation was computed. [2018-10-27 05:44:27,574 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-10-27 05:44:27,574 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-10-27 05:44:27,574 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-10-27 05:44:27,574 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-10-27 05:44:27,574 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-10-27 05:44:27,574 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-10-27 05:44:27,574 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 25) no Hoare annotation was computed. [2018-10-27 05:44:27,574 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-10-27 05:44:27,574 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 14 28) no Hoare annotation was computed. [2018-10-27 05:44:27,574 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 14 28) the Hoare annotation is: true [2018-10-27 05:44:27,575 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-10-27 05:44:27,575 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 24) no Hoare annotation was computed. [2018-10-27 05:44:27,575 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 26) no Hoare annotation was computed. [2018-10-27 05:44:27,575 INFO L421 ceAbstractionStarter]: At program point L20-2(lines 19 25) the Hoare annotation is: (and (<= 1 main_~y1~0) (<= 0 main_~y2~0) (<= main_~y2~0 2147483647) (<= main_~y1~0 2147483647)) [2018-10-27 05:44:27,575 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 26) no Hoare annotation was computed. [2018-10-27 05:44:27,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:44:27 BoogieIcfgContainer [2018-10-27 05:44:27,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:44:27,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:44:27,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:44:27,586 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:44:27,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:44:24" (3/4) ... [2018-10-27 05:44:27,589 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:44:27,593 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 05:44:27,594 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 05:44:27,597 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-10-27 05:44:27,597 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 05:44:27,597 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 05:44:27,632 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1a64b0bd-64a8-47df-995f-fd5114b297ad/bin-2019/uautomizer/witness.graphml [2018-10-27 05:44:27,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:44:27,633 INFO L168 Benchmark]: Toolchain (without parser) took 3780.93 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 760.7 MB in the end (delta: 197.4 MB). Peak memory consumption was 197.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:44:27,634 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:44:27,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.72 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-27 05:44:27,635 INFO L168 Benchmark]: Boogie Preprocessor took 29.82 ms. Allocated memory is still 1.0 GB. Free memory is still 947.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:44:27,635 INFO L168 Benchmark]: RCFGBuilder took 440.14 ms. Allocated memory is still 1.0 GB. Free memory was 947.2 MB in the beginning and 997.9 MB in the end (delta: -50.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:44:27,636 INFO L168 Benchmark]: TraceAbstraction took 3092.18 ms. Allocated memory is still 1.0 GB. Free memory was 997.9 MB in the beginning and 763.4 MB in the end (delta: 234.6 MB). Peak memory consumption was 234.6 MB. Max. memory is 11.5 GB. [2018-10-27 05:44:27,636 INFO L168 Benchmark]: Witness Printer took 47.20 ms. Allocated memory is still 1.0 GB. Free memory was 763.4 MB in the beginning and 760.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:44:27,639 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 167.72 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.82 ms. Allocated memory is still 1.0 GB. Free memory is still 947.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 440.14 ms. Allocated memory is still 1.0 GB. Free memory was 947.2 MB in the beginning and 997.9 MB in the end (delta: -50.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3092.18 ms. Allocated memory is still 1.0 GB. Free memory was 997.9 MB in the beginning and 763.4 MB in the end (delta: 234.6 MB). Peak memory consumption was 234.6 MB. Max. memory is 11.5 GB. * Witness Printer took 47.20 ms. Allocated memory is still 1.0 GB. Free memory was 763.4 MB in the beginning and 760.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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: 19]: Loop Invariant Derived loop invariant: ((1 <= y1 && 0 <= y2) && y2 <= 2147483647) && y1 <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 4 error locations. SAFE Result, 3.0s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 59 SDtfs, 195 SDslu, 173 SDs, 0 SdLazy, 412 SolverSat, 67 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=4, 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, 7 MinimizatonAttempts, 92 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 12 NumberOfFragments, 18 HoareAnnotationTreeSize, 5 FomulaSimplifications, 411 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 199 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 11678 SizeOfPredicates, 0 NumberOfNonLiveVariables, 169 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 35/70 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...