./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9_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_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/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 0a8f096dedbbe798ef2fe808d4231fc7a503c17f ...................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:28:33,962 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:28:33,963 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:28:33,971 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:28:33,971 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:28:33,971 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:28:33,972 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:28:33,973 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:28:33,974 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:28:33,975 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:28:33,976 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:28:33,976 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:28:33,977 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:28:33,977 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:28:33,978 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:28:33,979 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:28:33,979 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:28:33,981 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:28:33,982 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:28:33,983 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:28:33,984 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:28:33,985 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:28:33,987 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:28:33,987 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:28:33,987 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:28:33,987 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:28:33,988 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:28:33,989 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:28:33,989 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:28:33,990 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:28:33,990 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:28:33,991 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:28:33,991 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:28:33,991 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:28:33,992 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:28:33,992 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:28:33,993 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 13:28:34,003 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:28:34,003 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:28:34,004 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:28:34,004 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 13:28:34,004 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 13:28:34,004 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 13:28:34,005 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 13:28:34,005 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:28:34,005 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 13:28:34,005 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:28:34,005 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:28:34,005 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:28:34,006 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:28:34,006 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:28:34,006 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 13:28:34,006 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:28:34,006 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:28:34,006 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:28:34,006 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:28:34,007 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:28:34,007 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:28:34,007 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:28:34,007 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:28:34,007 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:28:34,007 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:28:34,007 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 13:28:34,008 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:28:34,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:28:34,008 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_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/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 -> 0a8f096dedbbe798ef2fe808d4231fc7a503c17f [2018-11-10 13:28:34,033 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:28:34,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:28:34,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:28:34,046 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:28:34,047 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:28:34,047 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c [2018-11-10 13:28:34,088 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/bin-2019/uautomizer/data/b47e5dc41/27ab2b551685465ca1ea81c1bd3c1699/FLAG1e0e8822f [2018-11-10 13:28:34,433 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:28:34,433 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c [2018-11-10 13:28:34,439 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/bin-2019/uautomizer/data/b47e5dc41/27ab2b551685465ca1ea81c1bd3c1699/FLAG1e0e8822f [2018-11-10 13:28:34,452 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/bin-2019/uautomizer/data/b47e5dc41/27ab2b551685465ca1ea81c1bd3c1699 [2018-11-10 13:28:34,455 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:28:34,456 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 13:28:34,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:28:34,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:28:34,460 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:28:34,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:28:34" (1/1) ... [2018-11-10 13:28:34,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3edf5c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:34, skipping insertion in model container [2018-11-10 13:28:34,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:28:34" (1/1) ... [2018-11-10 13:28:34,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:28:34,487 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:28:34,614 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:28:34,616 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:28:34,626 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:28:34,635 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:28:34,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:34 WrapperNode [2018-11-10 13:28:34,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:28:34,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:28:34,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:28:34,636 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:28:34,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:34" (1/1) ... [2018-11-10 13:28:34,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:34" (1/1) ... [2018-11-10 13:28:34,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:34" (1/1) ... [2018-11-10 13:28:34,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:34" (1/1) ... [2018-11-10 13:28:34,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:34" (1/1) ... [2018-11-10 13:28:34,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:34" (1/1) ... [2018-11-10 13:28:34,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:34" (1/1) ... [2018-11-10 13:28:34,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:28:34,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:28:34,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:28:34,654 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:28:34,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/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 13:28:34,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:28:34,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:28:34,729 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:28:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 13:28:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:28:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:28:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:28:34,828 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:28:34,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:28:34 BoogieIcfgContainer [2018-11-10 13:28:34,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:28:34,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:28:34,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:28:34,832 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:28:34,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:28:34" (1/3) ... [2018-11-10 13:28:34,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39112b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:28:34, skipping insertion in model container [2018-11-10 13:28:34,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:28:34" (2/3) ... [2018-11-10 13:28:34,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39112b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:28:34, skipping insertion in model container [2018-11-10 13:28:34,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:28:34" (3/3) ... [2018-11-10 13:28:34,834 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-cousot9_true-termination_true-no-overflow.c [2018-11-10 13:28:34,840 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:28:34,845 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 13:28:34,854 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 13:28:34,873 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:28:34,874 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:28:34,874 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:28:34,874 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:28:34,874 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:28:34,874 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:28:34,874 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:28:34,874 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:28:34,874 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:28:34,885 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-10 13:28:34,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 13:28:34,889 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:28:34,889 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:28:34,891 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:28:34,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:28:34,895 INFO L82 PathProgramCache]: Analyzing trace with hash 512030507, now seen corresponding path program 1 times [2018-11-10 13:28:34,896 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:28:34,896 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:28:34,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:28:34,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:28:34,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:28:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:28:35,009 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 13:28:35,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:28:35,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:28:35,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 13:28:35,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 13:28:35,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:28:35,023 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-11-10 13:28:35,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:28:35,065 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2018-11-10 13:28:35,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 13:28:35,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-10 13:28:35,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:28:35,075 INFO L225 Difference]: With dead ends: 35 [2018-11-10 13:28:35,075 INFO L226 Difference]: Without dead ends: 21 [2018-11-10 13:28:35,077 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 13:28:35,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-10 13:28:35,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-10 13:28:35,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 13:28:35,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2018-11-10 13:28:35,101 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 9 [2018-11-10 13:28:35,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:28:35,101 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2018-11-10 13:28:35,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 13:28:35,101 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-11-10 13:28:35,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 13:28:35,102 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:28:35,102 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:28:35,102 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:28:35,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:28:35,102 INFO L82 PathProgramCache]: Analyzing trace with hash 512030699, now seen corresponding path program 1 times [2018-11-10 13:28:35,102 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:28:35,103 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:28:35,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:28:35,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:28:35,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:28:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:28:35,124 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 13:28:35,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:28:35,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:28:35,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 13:28:35,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 13:28:35,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:28:35,126 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 3 states. [2018-11-10 13:28:35,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:28:35,134 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2018-11-10 13:28:35,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 13:28:35,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-10 13:28:35,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:28:35,136 INFO L225 Difference]: With dead ends: 21 [2018-11-10 13:28:35,136 INFO L226 Difference]: Without dead ends: 20 [2018-11-10 13:28:35,137 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 13:28:35,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-10 13:28:35,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-10 13:28:35,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 13:28:35,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-11-10 13:28:35,140 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 9 [2018-11-10 13:28:35,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:28:35,141 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-11-10 13:28:35,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 13:28:35,141 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-11-10 13:28:35,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 13:28:35,141 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:28:35,141 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:28:35,142 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:28:35,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:28:35,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1306923416, now seen corresponding path program 1 times [2018-11-10 13:28:35,142 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:28:35,142 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:28:35,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:28:35,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:28:35,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:28:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:28:35,164 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 13:28:35,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:28:35,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:28:35,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 13:28:35,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 13:28:35,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:28:35,165 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 3 states. [2018-11-10 13:28:35,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:28:35,176 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2018-11-10 13:28:35,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 13:28:35,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 13:28:35,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:28:35,177 INFO L225 Difference]: With dead ends: 20 [2018-11-10 13:28:35,177 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 13:28:35,178 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 13:28:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 13:28:35,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 13:28:35,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 13:28:35,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-10 13:28:35,181 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 10 [2018-11-10 13:28:35,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:28:35,181 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-10 13:28:35,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 13:28:35,182 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-10 13:28:35,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 13:28:35,182 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:28:35,182 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:28:35,183 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:28:35,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:28:35,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1306917458, now seen corresponding path program 1 times [2018-11-10 13:28:35,183 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:28:35,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:28:35,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:28:35,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:28:35,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:28:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:28:35,211 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 13:28:35,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:28:35,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:28:35,211 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 13:28:35,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 13:28:35,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:28:35,212 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-10 13:28:35,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:28:35,227 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-11-10 13:28:35,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 13:28:35,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 13:28:35,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:28:35,228 INFO L225 Difference]: With dead ends: 23 [2018-11-10 13:28:35,228 INFO L226 Difference]: Without dead ends: 22 [2018-11-10 13:28:35,228 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 13:28:35,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-10 13:28:35,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2018-11-10 13:28:35,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 13:28:35,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-10 13:28:35,232 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2018-11-10 13:28:35,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:28:35,232 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-10 13:28:35,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 13:28:35,232 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-10 13:28:35,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 13:28:35,233 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:28:35,233 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:28:35,233 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:28:35,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:28:35,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1698000854, now seen corresponding path program 1 times [2018-11-10 13:28:35,234 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 13:28:35,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 13:28:35,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:28:35,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:28:35,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:28:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:28:35,273 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 13:28:35,273 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:28:35,273 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/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 13:28:35,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:28:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:28:35,294 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:28:35,308 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 13:28:35,325 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 13:28:35,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-10 13:28:35,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:28:35,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:28:35,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:28:35,325 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2018-11-10 13:28:35,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:28:35,351 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2018-11-10 13:28:35,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 13:28:35,351 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-10 13:28:35,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:28:35,352 INFO L225 Difference]: With dead ends: 18 [2018-11-10 13:28:35,352 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:28:35,352 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:28:35,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:28:35,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:28:35,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:28:35,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:28:35,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-10 13:28:35,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:28:35,353 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:28:35,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:28:35,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:28:35,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:28:35,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:28:35,411 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 13:28:35,411 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:28:35,411 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:28:35,411 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 13:28:35,411 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:28:35,411 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:28:35,411 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2018-11-10 13:28:35,411 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-10 13:28:35,412 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-10 13:28:35,412 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-10 13:28:35,412 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 24) no Hoare annotation was computed. [2018-11-10 13:28:35,412 INFO L421 ceAbstractionStarter]: At program point L19-2(lines 18 25) the Hoare annotation is: (and (<= main_~i~0 2147483647) (<= main_~N~0 2147483647) (<= main_~j~0 2147483647)) [2018-11-10 13:28:35,412 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 27) no Hoare annotation was computed. [2018-11-10 13:28:35,412 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2018-11-10 13:28:35,412 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-10 13:28:35,412 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-10 13:28:35,413 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-10 13:28:35,413 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-10 13:28:35,413 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 25) no Hoare annotation was computed. [2018-11-10 13:28:35,413 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-10 13:28:35,413 INFO L425 ceAbstractionStarter]: For program point L18-3(lines 18 25) no Hoare annotation was computed. [2018-11-10 13:28:35,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:28:35 BoogieIcfgContainer [2018-11-10 13:28:35,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:28:35,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:28:35,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:28:35,424 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:28:35,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:28:34" (3/4) ... [2018-11-10 13:28:35,426 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:28:35,431 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:28:35,431 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:28:35,434 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 13:28:35,434 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 13:28:35,434 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 13:28:35,462 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9a7842aa-5ac0-4a9b-8a7e-781528eced3a/bin-2019/uautomizer/witness.graphml [2018-11-10 13:28:35,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:28:35,462 INFO L168 Benchmark]: Toolchain (without parser) took 1006.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -152.9 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:28:35,463 INFO L168 Benchmark]: CDTParser took 0.12 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 13:28:35,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.35 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:28:35,464 INFO L168 Benchmark]: Boogie Preprocessor took 17.85 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:28:35,464 INFO L168 Benchmark]: RCFGBuilder took 174.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 949.5 MB in the beginning and 1.2 GB in the end (delta: -224.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:28:35,465 INFO L168 Benchmark]: TraceAbstraction took 594.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 57.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:28:35,465 INFO L168 Benchmark]: Witness Printer took 38.53 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:28:35,467 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 178.35 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.85 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 174.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 949.5 MB in the beginning and 1.2 GB in the end (delta: -224.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 594.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 57.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 11.5 GB. * Witness Printer took 38.53 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: 3.2 MB). Peak memory consumption was 3.2 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: 20]: 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (i <= 2147483647 && N <= 2147483647) && j <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 4 error locations. SAFE Result, 0.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 63 SDtfs, 23 SDslu, 41 SDs, 0 SdLazy, 29 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 14 HoareAnnotationTreeSize, 5 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1314 SizeOfPredicates, 1 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...