./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/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 32bit --witnessprinter.graph.data.programhash 9918b49e0d76e4ce36b6a6760021b33460a8ae9b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 05:42:54,273 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:42:54,274 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:42:54,283 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:42:54,283 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:42:54,284 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:42:54,285 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:42:54,287 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:42:54,288 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:42:54,289 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:42:54,290 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:42:54,290 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:42:54,291 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:42:54,292 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:42:54,293 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:42:54,294 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:42:54,294 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:42:54,296 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:42:54,298 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:42:54,299 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:42:54,300 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:42:54,301 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:42:54,303 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:42:54,303 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:42:54,303 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:42:54,304 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:42:54,305 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:42:54,306 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:42:54,307 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:42:54,307 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:42:54,308 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:42:54,308 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:42:54,308 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:42:54,308 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:42:54,310 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:42:54,311 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:42:54,311 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2018-10-27 05:42:54,322 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:42:54,322 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:42:54,323 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:42:54,323 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 05:42:54,323 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 05:42:54,323 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 05:42:54,324 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 05:42:54,324 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:42:54,324 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 05:42:54,324 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:42:54,324 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:42:54,324 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 05:42:54,324 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:42:54,325 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:42:54,325 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:42:54,326 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:42:54,326 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:42:54,326 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 05:42:54,327 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:42:54,327 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:42:54,327 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:42:54,327 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:42:54,327 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:42:54,327 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:42:54,328 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:42:54,328 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:42:54,328 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:42:54,328 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:42:54,328 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 05:42:54,328 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:42:54,328 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:42:54,328 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_9d4fa25a-0178-4f3c-9ffa-de51afcec938/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9918b49e0d76e4ce36b6a6760021b33460a8ae9b [2018-10-27 05:42:54,355 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:42:54,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:42:54,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:42:54,370 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:42:54,370 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:42:54,371 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-10-27 05:42:54,418 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/data/e9a4d2ffe/6abca5190dfc4425b8fd684648e3e45e/FLAG1e0bfe37d [2018-10-27 05:42:54,810 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:42:54,811 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/sv-benchmarks/c/bitvector/gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-10-27 05:42:54,816 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/data/e9a4d2ffe/6abca5190dfc4425b8fd684648e3e45e/FLAG1e0bfe37d [2018-10-27 05:42:54,835 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/data/e9a4d2ffe/6abca5190dfc4425b8fd684648e3e45e [2018-10-27 05:42:54,838 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:42:54,840 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 05:42:54,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:42:54,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:42:54,844 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:42:54,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:42:54" (1/1) ... [2018-10-27 05:42:54,851 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 05:42:54, skipping insertion in model container [2018-10-27 05:42:54,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:42:54" (1/1) ... [2018-10-27 05:42:54,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:42:54,880 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:42:55,019 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:42:55,022 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:42:55,039 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:42:55,053 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:42:55,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:42:55 WrapperNode [2018-10-27 05:42:55,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:42:55,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:42:55,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:42:55,054 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:42:55,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:42:55" (1/1) ... [2018-10-27 05:42:55,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:42:55" (1/1) ... [2018-10-27 05:42:55,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:42:55" (1/1) ... [2018-10-27 05:42:55,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:42:55" (1/1) ... [2018-10-27 05:42:55,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:42:55" (1/1) ... [2018-10-27 05:42:55,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:42:55" (1/1) ... [2018-10-27 05:42:55,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:42:55" (1/1) ... [2018-10-27 05:42:55,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:42:55,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:42:55,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:42:55,092 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:42:55,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:42:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/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 05:42:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:42:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:42:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-27 05:42:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2018-10-27 05:42:55,128 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:42:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-27 05:42:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-27 05:42:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-27 05:42:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2018-10-27 05:42:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:42:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:42:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:42:55,496 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:42:55,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:42:55 BoogieIcfgContainer [2018-10-27 05:42:55,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:42:55,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:42:55,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:42:55,500 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:42:55,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:42:54" (1/3) ... [2018-10-27 05:42:55,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17633b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:42:55, skipping insertion in model container [2018-10-27 05:42:55,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:42:55" (2/3) ... [2018-10-27 05:42:55,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17633b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:42:55, skipping insertion in model container [2018-10-27 05:42:55,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:42:55" (3/3) ... [2018-10-27 05:42:55,504 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4_true-unreach-call_true-no-overflow_true-termination.i [2018-10-27 05:42:55,512 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:42:55,519 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-10-27 05:42:55,528 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-10-27 05:42:55,546 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 05:42:55,547 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:42:55,547 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:42:55,547 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:42:55,547 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:42:55,547 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:42:55,547 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:42:55,548 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:42:55,548 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:42:55,562 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-10-27 05:42:55,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 05:42:55,567 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:42:55,568 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:42:55,570 INFO L424 AbstractCegarLoop]: === Iteration 1 === [gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:42:55,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:42:55,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1733380565, now seen corresponding path program 1 times [2018-10-27 05:42:55,576 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:42:55,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:42:55,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:55,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:55,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:55,719 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 05:42:55,720 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:42:55,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 05:42:55,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 05:42:55,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 05:42:55,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 05:42:55,732 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 5 states. [2018-10-27 05:42:55,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:42:55,948 INFO L93 Difference]: Finished difference Result 94 states and 115 transitions. [2018-10-27 05:42:55,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 05:42:55,949 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-10-27 05:42:55,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:42:55,955 INFO L225 Difference]: With dead ends: 94 [2018-10-27 05:42:55,955 INFO L226 Difference]: Without dead ends: 36 [2018-10-27 05:42:55,958 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 05:42:55,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-10-27 05:42:55,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 25. [2018-10-27 05:42:55,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-10-27 05:42:55,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-10-27 05:42:55,988 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 9 [2018-10-27 05:42:55,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:42:55,989 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-10-27 05:42:55,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 05:42:55,989 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-10-27 05:42:55,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:42:55,989 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:42:55,989 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:42:55,990 INFO L424 AbstractCegarLoop]: === Iteration 2 === [gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:42:55,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:42:55,990 INFO L82 PathProgramCache]: Analyzing trace with hash -2099771252, now seen corresponding path program 1 times [2018-10-27 05:42:55,990 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:42:55,990 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:42:55,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:55,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:55,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:56,203 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 05:42:56,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:42:56,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 05:42:56,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 05:42:56,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 05:42:56,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 05:42:56,205 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 5 states. [2018-10-27 05:42:56,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:42:56,463 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2018-10-27 05:42:56,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 05:42:56,464 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-10-27 05:42:56,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:42:56,465 INFO L225 Difference]: With dead ends: 48 [2018-10-27 05:42:56,465 INFO L226 Difference]: Without dead ends: 32 [2018-10-27 05:42:56,465 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 05:42:56,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-27 05:42:56,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 21. [2018-10-27 05:42:56,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-27 05:42:56,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-10-27 05:42:56,470 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 10 [2018-10-27 05:42:56,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:42:56,470 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-10-27 05:42:56,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 05:42:56,470 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-10-27 05:42:56,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-27 05:42:56,471 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:42:56,471 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:42:56,473 INFO L424 AbstractCegarLoop]: === Iteration 3 === [gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:42:56,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:42:56,473 INFO L82 PathProgramCache]: Analyzing trace with hash -634751433, now seen corresponding path program 1 times [2018-10-27 05:42:56,473 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:42:56,473 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:42:56,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:56,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:56,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:56,572 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 05:42:56,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:42:56,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 05:42:56,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 05:42:56,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 05:42:56,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-27 05:42:56,574 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2018-10-27 05:42:56,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:42:56,746 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2018-10-27 05:42:56,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 05:42:56,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-10-27 05:42:56,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:42:56,748 INFO L225 Difference]: With dead ends: 37 [2018-10-27 05:42:56,748 INFO L226 Difference]: Without dead ends: 35 [2018-10-27 05:42:56,748 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-10-27 05:42:56,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-27 05:42:56,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 24. [2018-10-27 05:42:56,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-10-27 05:42:56,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-10-27 05:42:56,753 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 14 [2018-10-27 05:42:56,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:42:56,753 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-10-27 05:42:56,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 05:42:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-10-27 05:42:56,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-27 05:42:56,754 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:42:56,754 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:42:56,755 INFO L424 AbstractCegarLoop]: === Iteration 4 === [gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:42:56,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:42:56,755 INFO L82 PathProgramCache]: Analyzing trace with hash -634751625, now seen corresponding path program 1 times [2018-10-27 05:42:56,755 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:42:56,755 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:42:56,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:56,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:56,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:56,807 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 05:42:56,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:42:56,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 05:42:56,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 05:42:56,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 05:42:56,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-27 05:42:56,808 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 6 states. [2018-10-27 05:42:57,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:42:57,066 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-10-27 05:42:57,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 05:42:57,067 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-10-27 05:42:57,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:42:57,067 INFO L225 Difference]: With dead ends: 36 [2018-10-27 05:42:57,067 INFO L226 Difference]: Without dead ends: 34 [2018-10-27 05:42:57,068 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-10-27 05:42:57,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-27 05:42:57,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 24. [2018-10-27 05:42:57,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-10-27 05:42:57,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-10-27 05:42:57,071 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 14 [2018-10-27 05:42:57,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:42:57,072 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-10-27 05:42:57,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 05:42:57,072 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-10-27 05:42:57,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-27 05:42:57,072 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:42:57,072 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:42:57,076 INFO L424 AbstractCegarLoop]: === Iteration 5 === [gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:42:57,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:42:57,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1352493196, now seen corresponding path program 1 times [2018-10-27 05:42:57,076 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:42:57,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:42:57,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:57,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:57,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:57,175 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 05:42:57,176 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:42:57,176 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/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 05:42:57,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:57,197 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:42:57,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-27 05:42:57,286 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:42:57,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2018-10-27 05:42:57,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 05:42:57,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 05:42:57,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-27 05:42:57,288 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 9 states. [2018-10-27 05:42:57,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:42:57,401 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-10-27 05:42:57,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 05:42:57,401 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-10-27 05:42:57,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:42:57,402 INFO L225 Difference]: With dead ends: 34 [2018-10-27 05:42:57,402 INFO L226 Difference]: Without dead ends: 24 [2018-10-27 05:42:57,402 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-10-27 05:42:57,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-10-27 05:42:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2018-10-27 05:42:57,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-27 05:42:57,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-10-27 05:42:57,406 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 19 [2018-10-27 05:42:57,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:42:57,406 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-10-27 05:42:57,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 05:42:57,406 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-10-27 05:42:57,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-27 05:42:57,407 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:42:57,407 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:42:57,407 INFO L424 AbstractCegarLoop]: === Iteration 6 === [gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:42:57,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:42:57,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1735103278, now seen corresponding path program 1 times [2018-10-27 05:42:57,408 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:42:57,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:42:57,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:57,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:57,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:57,475 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 05:42:57,475 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:42:57,476 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/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 05:42:57,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:57,489 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:42:57,578 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 05:42:57,600 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 05:42:57,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2018-10-27 05:42:57,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-27 05:42:57,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-27 05:42:57,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-10-27 05:42:57,601 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 11 states. [2018-10-27 05:42:57,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:42:57,985 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2018-10-27 05:42:57,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-27 05:42:57,986 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2018-10-27 05:42:57,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:42:57,986 INFO L225 Difference]: With dead ends: 58 [2018-10-27 05:42:57,987 INFO L226 Difference]: Without dead ends: 49 [2018-10-27 05:42:57,987 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2018-10-27 05:42:57,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-27 05:42:57,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 37. [2018-10-27 05:42:57,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-27 05:42:57,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-10-27 05:42:57,993 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 19 [2018-10-27 05:42:57,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:42:57,993 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-10-27 05:42:57,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-27 05:42:57,993 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-10-27 05:42:57,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-27 05:42:57,994 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:42:57,994 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:42:57,994 INFO L424 AbstractCegarLoop]: === Iteration 7 === [gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:42:57,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:42:57,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1735103086, now seen corresponding path program 1 times [2018-10-27 05:42:57,995 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:42:57,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:42:57,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:57,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:57,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:58,030 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 05:42:58,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:42:58,031 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/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 05:42:58,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:58,045 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:42:58,126 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 05:42:58,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:42:58,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2018-10-27 05:42:58,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 05:42:58,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 05:42:58,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-10-27 05:42:58,144 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 9 states. [2018-10-27 05:42:58,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:42:58,321 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2018-10-27 05:42:58,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 05:42:58,325 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-10-27 05:42:58,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:42:58,326 INFO L225 Difference]: With dead ends: 57 [2018-10-27 05:42:58,326 INFO L226 Difference]: Without dead ends: 56 [2018-10-27 05:42:58,327 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2018-10-27 05:42:58,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-10-27 05:42:58,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2018-10-27 05:42:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-10-27 05:42:58,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2018-10-27 05:42:58,338 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 19 [2018-10-27 05:42:58,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:42:58,338 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2018-10-27 05:42:58,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 05:42:58,338 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2018-10-27 05:42:58,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-27 05:42:58,339 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:42:58,339 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:42:58,340 INFO L424 AbstractCegarLoop]: === Iteration 8 === [gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:42:58,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:42:58,340 INFO L82 PathProgramCache]: Analyzing trace with hash 203854100, now seen corresponding path program 1 times [2018-10-27 05:42:58,340 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:42:58,340 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:42:58,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:58,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:58,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:58,420 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 05:42:58,420 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:42:58,420 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/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 05:42:58,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:58,435 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:42:58,580 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-27 05:42:58,597 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 05:42:58,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2018-10-27 05:42:58,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-27 05:42:58,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-27 05:42:58,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-10-27 05:42:58,598 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand 13 states. [2018-10-27 05:42:58,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:42:58,845 INFO L93 Difference]: Finished difference Result 119 states and 140 transitions. [2018-10-27 05:42:58,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-27 05:42:58,845 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 29 [2018-10-27 05:42:58,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:42:58,846 INFO L225 Difference]: With dead ends: 119 [2018-10-27 05:42:58,846 INFO L226 Difference]: Without dead ends: 89 [2018-10-27 05:42:58,847 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2018-10-27 05:42:58,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-10-27 05:42:58,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 63. [2018-10-27 05:42:58,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-10-27 05:42:58,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2018-10-27 05:42:58,858 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 29 [2018-10-27 05:42:58,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:42:58,861 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2018-10-27 05:42:58,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-27 05:42:58,862 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2018-10-27 05:42:58,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-27 05:42:58,862 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:42:58,863 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:42:58,863 INFO L424 AbstractCegarLoop]: === Iteration 9 === [gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:42:58,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:42:58,863 INFO L82 PathProgramCache]: Analyzing trace with hash 2000009774, now seen corresponding path program 2 times [2018-10-27 05:42:58,863 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:42:58,864 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:42:58,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:58,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:58,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:58,948 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 31 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-10-27 05:42:58,948 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:42:58,948 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/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 05:42:58,964 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-27 05:42:59,008 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-27 05:42:59,009 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 05:42:59,011 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:42:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 5 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:42:59,337 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 05:42:59,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10] total 14 [2018-10-27 05:42:59,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-27 05:42:59,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-27 05:42:59,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-10-27 05:42:59,339 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand 14 states. [2018-10-27 05:42:59,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:42:59,727 INFO L93 Difference]: Finished difference Result 127 states and 148 transitions. [2018-10-27 05:42:59,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-27 05:42:59,727 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 39 [2018-10-27 05:42:59,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:42:59,729 INFO L225 Difference]: With dead ends: 127 [2018-10-27 05:42:59,729 INFO L226 Difference]: Without dead ends: 103 [2018-10-27 05:42:59,730 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2018-10-27 05:42:59,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-10-27 05:42:59,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 87. [2018-10-27 05:42:59,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-10-27 05:42:59,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2018-10-27 05:42:59,742 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 39 [2018-10-27 05:42:59,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:42:59,742 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2018-10-27 05:42:59,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-27 05:42:59,742 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2018-10-27 05:42:59,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-10-27 05:42:59,743 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:42:59,743 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:42:59,743 INFO L424 AbstractCegarLoop]: === Iteration 10 === [gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:42:59,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:42:59,744 INFO L82 PathProgramCache]: Analyzing trace with hash 2000009582, now seen corresponding path program 1 times [2018-10-27 05:42:59,744 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:42:59,744 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:42:59,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:59,745 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 05:42:59,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:42:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:59,851 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-10-27 05:42:59,851 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:42:59,851 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 05:42:59,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:42:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:42:59,867 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:43:00,172 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 24 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:43:00,195 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 05:43:00,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9] total 12 [2018-10-27 05:43:00,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-27 05:43:00,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-27 05:43:00,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-10-27 05:43:00,196 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand 13 states. [2018-10-27 05:43:00,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:43:00,416 INFO L93 Difference]: Finished difference Result 119 states and 140 transitions. [2018-10-27 05:43:00,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-27 05:43:00,416 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 39 [2018-10-27 05:43:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:43:00,417 INFO L225 Difference]: With dead ends: 119 [2018-10-27 05:43:00,417 INFO L226 Difference]: Without dead ends: 75 [2018-10-27 05:43:00,418 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2018-10-27 05:43:00,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-10-27 05:43:00,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2018-10-27 05:43:00,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-10-27 05:43:00,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 79 transitions. [2018-10-27 05:43:00,426 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 79 transitions. Word has length 39 [2018-10-27 05:43:00,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:43:00,427 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 79 transitions. [2018-10-27 05:43:00,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-27 05:43:00,427 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 79 transitions. [2018-10-27 05:43:00,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-27 05:43:00,428 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:43:00,428 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 6, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:43:00,428 INFO L424 AbstractCegarLoop]: === Iteration 11 === [gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:43:00,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:43:00,428 INFO L82 PathProgramCache]: Analyzing trace with hash -155913458, now seen corresponding path program 2 times [2018-10-27 05:43:00,428 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:43:00,428 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:43:00,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:43:00,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:43:00,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:43:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:43:00,469 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 62 proven. 9 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-10-27 05:43:00,470 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:43:00,470 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 05:43:00,476 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-27 05:43:00,501 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-27 05:43:00,501 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 05:43:00,503 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:43:00,708 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 28 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:43:00,724 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 05:43:00,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11] total 15 [2018-10-27 05:43:00,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-27 05:43:00,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-27 05:43:00,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2018-10-27 05:43:00,725 INFO L87 Difference]: Start difference. First operand 73 states and 79 transitions. Second operand 16 states. [2018-10-27 05:43:01,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:43:01,143 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2018-10-27 05:43:01,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-27 05:43:01,144 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 49 [2018-10-27 05:43:01,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:43:01,145 INFO L225 Difference]: With dead ends: 86 [2018-10-27 05:43:01,145 INFO L226 Difference]: Without dead ends: 85 [2018-10-27 05:43:01,145 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=187, Invalid=569, Unknown=0, NotChecked=0, Total=756 [2018-10-27 05:43:01,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-10-27 05:43:01,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 70. [2018-10-27 05:43:01,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-10-27 05:43:01,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2018-10-27 05:43:01,154 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 49 [2018-10-27 05:43:01,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:43:01,154 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2018-10-27 05:43:01,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-27 05:43:01,154 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2018-10-27 05:43:01,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-27 05:43:01,155 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:43:01,155 INFO L375 BasicCegarLoop]: trace histogram [12, 12, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:43:01,155 INFO L424 AbstractCegarLoop]: === Iteration 12 === [gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:43:01,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:43:01,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1530949048, now seen corresponding path program 3 times [2018-10-27 05:43:01,156 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:43:01,156 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:43:01,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:43:01,157 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 05:43:01,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:43:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:43:01,215 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 79 proven. 3 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2018-10-27 05:43:01,215 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:43:01,215 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 05:43:01,221 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-27 05:43:01,237 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-10-27 05:43:01,237 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 05:43:01,239 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:43:01,262 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2018-10-27 05:43:01,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:43:01,278 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2018-10-27 05:43:01,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 05:43:01,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 05:43:01,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-27 05:43:01,278 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand 8 states. [2018-10-27 05:43:01,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:43:01,341 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2018-10-27 05:43:01,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 05:43:01,344 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2018-10-27 05:43:01,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:43:01,344 INFO L225 Difference]: With dead ends: 70 [2018-10-27 05:43:01,344 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 05:43:01,345 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-10-27 05:43:01,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 05:43:01,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 05:43:01,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 05:43:01,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 05:43:01,345 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2018-10-27 05:43:01,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:43:01,345 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 05:43:01,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 05:43:01,346 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 05:43:01,346 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:43:01,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 05:43:01,691 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 23 [2018-10-27 05:43:01,693 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 05:43:01,694 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:43:01,694 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 05:43:01,694 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 05:43:01,694 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 05:43:01,694 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 05:43:01,694 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 30 46) the Hoare annotation is: true [2018-10-27 05:43:01,694 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 30 46) no Hoare annotation was computed. [2018-10-27 05:43:01,694 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-10-27 05:43:01,694 INFO L421 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (<= 63 main_~x~0) [2018-10-27 05:43:01,695 INFO L421 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: (<= 63 main_~x~0) [2018-10-27 05:43:01,695 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 30 46) no Hoare annotation was computed. [2018-10-27 05:43:01,695 INFO L421 ceAbstractionStarter]: At program point L41-1(line 41) the Hoare annotation is: (<= 63 main_~x~0) [2018-10-27 05:43:01,695 INFO L421 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (and (<= 63 main_~x~0) (<= 18 main_~y~0) (<= main_~x~0 63) (<= main_~y~0 18)) [2018-10-27 05:43:01,695 INFO L425 ceAbstractionStarter]: For program point L39-1(line 39) no Hoare annotation was computed. [2018-10-27 05:43:01,695 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-10-27 05:43:01,695 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-10-27 05:43:01,695 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-10-27 05:43:01,695 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-10-27 05:43:01,695 INFO L425 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-10-27 05:43:01,696 INFO L425 ceAbstractionStarter]: For program point gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2018-10-27 05:43:01,696 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-10-27 05:43:01,696 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-10-27 05:43:01,696 INFO L425 ceAbstractionStarter]: For program point gcd_testErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-10-27 05:43:01,696 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 25) no Hoare annotation was computed. [2018-10-27 05:43:01,696 INFO L425 ceAbstractionStarter]: For program point L19-3(lines 19 25) no Hoare annotation was computed. [2018-10-27 05:43:01,696 INFO L425 ceAbstractionStarter]: For program point gcd_testErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-10-27 05:43:01,696 INFO L425 ceAbstractionStarter]: For program point gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2018-10-27 05:43:01,696 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 24) no Hoare annotation was computed. [2018-10-27 05:43:01,696 INFO L425 ceAbstractionStarter]: For program point gcd_testErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-10-27 05:43:01,697 INFO L421 ceAbstractionStarter]: At program point L20-2(lines 19 25) the Hoare annotation is: (or (< |gcd_test_#in~b| 18) (< 63 |gcd_test_#in~a|) (< |gcd_test_#in~a| 63) (< 18 |gcd_test_#in~b|) (and (<= 0 gcd_test_~b) (<= 1 gcd_test_~a) (<= gcd_test_~a 2147483647) (<= gcd_test_~b 2147483647))) [2018-10-27 05:43:01,697 INFO L425 ceAbstractionStarter]: For program point gcd_testErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-10-27 05:43:01,697 INFO L425 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-10-27 05:43:01,697 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-10-27 05:43:01,697 INFO L425 ceAbstractionStarter]: For program point L12-2(line 12) no Hoare annotation was computed. [2018-10-27 05:43:01,697 INFO L425 ceAbstractionStarter]: For program point L12-4(lines 11 27) no Hoare annotation was computed. [2018-10-27 05:43:01,697 INFO L425 ceAbstractionStarter]: For program point gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 13) no Hoare annotation was computed. [2018-10-27 05:43:01,697 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-10-27 05:43:01,697 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-10-27 05:43:01,697 INFO L425 ceAbstractionStarter]: For program point gcd_testEXIT(lines 10 27) no Hoare annotation was computed. [2018-10-27 05:43:01,698 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-10-27 05:43:01,698 INFO L425 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-10-27 05:43:01,698 INFO L425 ceAbstractionStarter]: For program point L13-3(lines 11 27) no Hoare annotation was computed. [2018-10-27 05:43:01,698 INFO L428 ceAbstractionStarter]: At program point gcd_testENTRY(lines 10 27) the Hoare annotation is: true [2018-10-27 05:43:01,698 INFO L425 ceAbstractionStarter]: For program point gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2018-10-27 05:43:01,698 INFO L425 ceAbstractionStarter]: For program point gcd_testFINAL(lines 10 27) no Hoare annotation was computed. [2018-10-27 05:43:01,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:43:01 BoogieIcfgContainer [2018-10-27 05:43:01,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:43:01,711 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:43:01,711 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:43:01,711 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:43:01,712 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:42:55" (3/4) ... [2018-10-27 05:43:01,715 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:43:01,722 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 05:43:01,723 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 05:43:01,723 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-27 05:43:01,723 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd_test [2018-10-27 05:43:01,728 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-10-27 05:43:01,728 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 05:43:01,728 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 05:43:01,756 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(b) < 18 || 63 < \old(a)) || \old(a) < 63) || 18 < \old(b)) || (((0 <= b && 1 <= a) && a <= 2147483647) && b <= 2147483647) [2018-10-27 05:43:01,775 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9d4fa25a-0178-4f3c-9ffa-de51afcec938/bin-2019/uautomizer/witness.graphml [2018-10-27 05:43:01,775 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:43:01,776 INFO L168 Benchmark]: Toolchain (without parser) took 6936.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.7 MB). Free memory was 959.6 MB in the beginning and 881.0 MB in the end (delta: 78.6 MB). Peak memory consumption was 288.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:43:01,777 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:43:01,777 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.10 ms. Allocated memory is still 1.0 GB. Free memory was 959.6 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:43:01,777 INFO L168 Benchmark]: Boogie Preprocessor took 36.67 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:43:01,778 INFO L168 Benchmark]: RCFGBuilder took 405.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-10-27 05:43:01,778 INFO L168 Benchmark]: TraceAbstraction took 6213.04 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 886.2 MB in the end (delta: 245.0 MB). Peak memory consumption was 307.9 MB. Max. memory is 11.5 GB. [2018-10-27 05:43:01,778 INFO L168 Benchmark]: Witness Printer took 64.36 ms. Allocated memory is still 1.2 GB. Free memory was 886.2 MB in the beginning and 881.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-10-27 05:43:01,781 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 213.10 ms. Allocated memory is still 1.0 GB. Free memory was 959.6 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.67 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 405.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6213.04 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 886.2 MB in the end (delta: 245.0 MB). Peak memory consumption was 307.9 MB. Max. memory is 11.5 GB. * Witness Printer took 64.36 ms. Allocated memory is still 1.2 GB. Free memory was 886.2 MB in the beginning and 881.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: 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: 12]: 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((\old(b) < 18 || 63 < \old(a)) || \old(a) < 63) || 18 < \old(b)) || (((0 <= b && 1 <= a) && a <= 2147483647) && b <= 2147483647) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 locations, 8 error locations. SAFE Result, 6.1s OverallTime, 12 OverallIterations, 12 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 143 SDtfs, 837 SDslu, 558 SDs, 0 SdLazy, 1095 SolverSat, 184 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 416 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=9, 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, 12 MinimizatonAttempts, 118 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 16 PreInvPairs, 31 NumberOfFragments, 58 HoareAnnotationTreeSize, 16 FomulaSimplifications, 4242 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 604 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 611 NumberOfCodeBlocks, 566 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 591 ConstructedInterpolants, 36 QuantifiedInterpolants, 103171 SizeOfPredicates, 20 NumberOfNonLiveVariables, 423 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 777/1014 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...