./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 d5d419a3a7f083f15010050e5cf28b10f30a132d ................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:11:28,944 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:11:28,946 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:11:28,959 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:11:28,960 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:11:28,961 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:11:28,962 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:11:28,965 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:11:28,967 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:11:28,968 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:11:28,969 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:11:28,969 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:11:28,971 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:11:28,972 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:11:28,973 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:11:28,974 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:11:28,975 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:11:28,977 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:11:28,980 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:11:28,982 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:11:28,983 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:11:28,984 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:11:28,987 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:11:28,988 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:11:28,988 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:11:28,989 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:11:28,990 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:11:28,992 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:11:28,992 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:11:28,994 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:11:28,994 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:11:28,995 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:11:28,995 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:11:28,996 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:11:28,997 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:11:28,998 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:11:28,998 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2018-11-28 23:11:29,014 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:11:29,015 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:11:29,015 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:11:29,016 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:11:29,016 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:11:29,017 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:11:29,017 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:11:29,018 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:11:29,018 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:11:29,018 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:11:29,018 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:11:29,018 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:11:29,018 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:11:29,019 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:11:29,019 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:11:29,019 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:11:29,019 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:11:29,019 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:11:29,019 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:11:29,021 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:11:29,021 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:11:29,022 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:11:29,022 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:11:29,022 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:11:29,022 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:11:29,022 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:11:29,022 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:11:29,024 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:11:29,024 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:11:29,024 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:11:29,024 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:11:29,024 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:11:29,025 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> d5d419a3a7f083f15010050e5cf28b10f30a132d [2018-11-28 23:11:29,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:11:29,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:11:29,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:11:29,081 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:11:29,081 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:11:29,082 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i [2018-11-28 23:11:29,144 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b17d653/5a440198071d495892cc658c107e98a7/FLAGdcdaa7f18 [2018-11-28 23:11:29,551 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:11:29,552 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/bitvector/gcd_1_true-unreach-call_true-no-overflow.i [2018-11-28 23:11:29,557 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b17d653/5a440198071d495892cc658c107e98a7/FLAGdcdaa7f18 [2018-11-28 23:11:29,940 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b17d653/5a440198071d495892cc658c107e98a7 [2018-11-28 23:11:29,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:11:29,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:11:29,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:11:29,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:11:29,953 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:11:29,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:11:29" (1/1) ... [2018-11-28 23:11:29,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5476362c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:29, skipping insertion in model container [2018-11-28 23:11:29,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:11:29" (1/1) ... [2018-11-28 23:11:29,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:11:29,990 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:11:30,223 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:11:30,228 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:11:30,249 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:11:30,267 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:11:30,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:30 WrapperNode [2018-11-28 23:11:30,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:11:30,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:11:30,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:11:30,269 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:11:30,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:30" (1/1) ... [2018-11-28 23:11:30,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:30" (1/1) ... [2018-11-28 23:11:30,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:11:30,294 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:11:30,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:11:30,294 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:11:30,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:30" (1/1) ... [2018-11-28 23:11:30,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:30" (1/1) ... [2018-11-28 23:11:30,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:30" (1/1) ... [2018-11-28 23:11:30,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:30" (1/1) ... [2018-11-28 23:11:30,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:30" (1/1) ... [2018-11-28 23:11:30,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:30" (1/1) ... [2018-11-28 23:11:30,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:30" (1/1) ... [2018-11-28 23:11:30,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:11:30,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:11:30,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:11:30,331 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:11:30,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:11:30,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:11:30,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:11:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:11:30,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:11:30,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:11:30,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:11:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 23:11:30,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 23:11:30,498 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2018-11-28 23:11:30,499 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2018-11-28 23:11:30,980 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:11:30,980 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 23:11:30,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:11:30 BoogieIcfgContainer [2018-11-28 23:11:30,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:11:30,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:11:30,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:11:30,986 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:11:30,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:11:29" (1/3) ... [2018-11-28 23:11:30,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1ea53f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:11:30, skipping insertion in model container [2018-11-28 23:11:30,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:30" (2/3) ... [2018-11-28 23:11:30,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1ea53f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:11:30, skipping insertion in model container [2018-11-28 23:11:30,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:11:30" (3/3) ... [2018-11-28 23:11:30,991 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_1_true-unreach-call_true-no-overflow.i [2018-11-28 23:11:31,001 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:11:31,009 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 23:11:31,025 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 23:11:31,058 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:11:31,059 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:11:31,059 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:11:31,059 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:11:31,060 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:11:31,060 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:11:31,060 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:11:31,060 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:11:31,060 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:11:31,082 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-28 23:11:31,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:11:31,088 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:11:31,090 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:11:31,092 INFO L423 AbstractCegarLoop]: === Iteration 1 === [gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:11:31,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:11:31,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1842922724, now seen corresponding path program 1 times [2018-11-28 23:11:31,101 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:11:31,102 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:11:31,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:31,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:11:31,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:31,182 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 23:11:31,183 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 23:11:31,183 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 23:11:31,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:11:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:11:31,250 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:11:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:11:31,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:11:31,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:11:31,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 23:11:31,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:11:31,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:11:31,415 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 5 states. [2018-11-28 23:11:31,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:11:31,593 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2018-11-28 23:11:31,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:11:31,595 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-28 23:11:31,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:11:31,604 INFO L225 Difference]: With dead ends: 53 [2018-11-28 23:11:31,604 INFO L226 Difference]: Without dead ends: 17 [2018-11-28 23:11:31,608 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:11:31,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-28 23:11:31,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-28 23:11:31,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 23:11:31,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-11-28 23:11:31,648 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2018-11-28 23:11:31,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:11:31,649 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-11-28 23:11:31,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 23:11:31,649 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-28 23:11:31,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 23:11:31,650 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:11:31,650 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:11:31,651 INFO L423 AbstractCegarLoop]: === Iteration 2 === [gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:11:31,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:11:31,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1296035681, now seen corresponding path program 1 times [2018-11-28 23:11:31,651 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:11:31,651 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:11:31,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:31,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:11:31,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:31,657 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 23:11:31,657 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 23:11:31,657 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 23:11:31,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:11:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:11:31,687 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:11:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:11:31,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:11:31,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 23:11:31,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 23:11:31,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:11:31,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:11:31,810 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2018-11-28 23:11:31,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:11:31,884 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-11-28 23:11:31,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:11:31,884 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-28 23:11:31,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:11:31,885 INFO L225 Difference]: With dead ends: 17 [2018-11-28 23:11:31,885 INFO L226 Difference]: Without dead ends: 12 [2018-11-28 23:11:31,887 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:11:31,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-28 23:11:31,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 23:11:31,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 23:11:31,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-11-28 23:11:31,892 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2018-11-28 23:11:31,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:11:31,892 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-11-28 23:11:31,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 23:11:31,893 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-11-28 23:11:31,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 23:11:31,893 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:11:31,893 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:11:31,895 INFO L423 AbstractCegarLoop]: === Iteration 3 === [gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:11:31,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:11:31,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1296029659, now seen corresponding path program 1 times [2018-11-28 23:11:31,896 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:11:31,896 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:11:31,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:31,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:11:31,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:31,903 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-28 23:11:31,903 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-28 23:11:31,903 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-28 23:11:31,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:11:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:11:31,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:11:32,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:11:32,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:11:32,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:11:32,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:11:32,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:11:32,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:11:32,040 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 3 states. [2018-11-28 23:11:32,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:11:32,075 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-11-28 23:11:32,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:11:32,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-28 23:11:32,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:11:32,079 INFO L225 Difference]: With dead ends: 12 [2018-11-28 23:11:32,079 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 23:11:32,080 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:11:32,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 23:11:32,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 23:11:32,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 23:11:32,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:11:32,082 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-28 23:11:32,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:11:32,083 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:11:32,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:11:32,083 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:11:32,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 23:11:32,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 23:11:32,147 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 23:11:32,147 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:11:32,147 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:11:32,147 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 23:11:32,148 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 23:11:32,148 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 23:11:32,148 INFO L444 ceAbstractionStarter]: At program point L33(line 33) the Hoare annotation is: (and (< 0 main_~y~0) (<= 0 (+ main_~x~0 128))) [2018-11-28 23:11:32,149 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 36) no Hoare annotation was computed. [2018-11-28 23:11:32,149 INFO L448 ceAbstractionStarter]: For program point L33-1(line 33) no Hoare annotation was computed. [2018-11-28 23:11:32,149 INFO L448 ceAbstractionStarter]: For program point L32-1(lines 32 36) no Hoare annotation was computed. [2018-11-28 23:11:32,149 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 26 39) the Hoare annotation is: true [2018-11-28 23:11:32,149 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 26 39) no Hoare annotation was computed. [2018-11-28 23:11:32,149 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 26 39) no Hoare annotation was computed. [2018-11-28 23:11:32,150 INFO L444 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (<= 0 (+ main_~x~0 128)) [2018-11-28 23:11:32,150 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-11-28 23:11:32,150 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-11-28 23:11:32,150 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-11-28 23:11:32,150 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-11-28 23:11:32,150 INFO L448 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-11-28 23:11:32,151 INFO L448 ceAbstractionStarter]: For program point gcd_testEXIT(lines 10 23) no Hoare annotation was computed. [2018-11-28 23:11:32,151 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 11 23) no Hoare annotation was computed. [2018-11-28 23:11:32,151 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-28 23:11:32,151 INFO L448 ceAbstractionStarter]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2018-11-28 23:11:32,151 INFO L448 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-11-28 23:11:32,152 INFO L448 ceAbstractionStarter]: For program point gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 23:11:32,152 INFO L448 ceAbstractionStarter]: For program point gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-11-28 23:11:32,152 INFO L451 ceAbstractionStarter]: At program point gcd_testENTRY(lines 10 23) the Hoare annotation is: true [2018-11-28 23:11:32,152 INFO L448 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-28 23:11:32,152 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-28 23:11:32,152 INFO L448 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-11-28 23:11:32,153 INFO L448 ceAbstractionStarter]: For program point gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 23:11:32,153 INFO L448 ceAbstractionStarter]: For program point L14-4(lines 11 23) no Hoare annotation was computed. [2018-11-28 23:11:32,153 INFO L448 ceAbstractionStarter]: For program point gcd_testFINAL(lines 10 23) no Hoare annotation was computed. [2018-11-28 23:11:32,153 INFO L448 ceAbstractionStarter]: For program point gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-11-28 23:11:32,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:11:32 BoogieIcfgContainer [2018-11-28 23:11:32,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:11:32,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:11:32,158 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:11:32,158 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:11:32,159 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:11:30" (3/4) ... [2018-11-28 23:11:32,163 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 23:11:32,171 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 23:11:32,171 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 23:11:32,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 23:11:32,172 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd_test [2018-11-28 23:11:32,177 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-28 23:11:32,177 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 23:11:32,178 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 23:11:32,241 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:11:32,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:11:32,242 INFO L168 Benchmark]: Toolchain (without parser) took 2297.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.9 MB). Free memory was 951.3 MB in the beginning and 990.4 MB in the end (delta: -39.1 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:11:32,244 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:11:32,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.30 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:11:32,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.03 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:11:32,246 INFO L168 Benchmark]: Boogie Preprocessor took 36.32 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:11:32,246 INFO L168 Benchmark]: RCFGBuilder took 651.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.9 MB). Free memory was 940.6 MB in the beginning and 1.0 GB in the end (delta: -107.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:11:32,247 INFO L168 Benchmark]: TraceAbstraction took 1174.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 990.4 MB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:11:32,248 INFO L168 Benchmark]: Witness Printer took 83.56 ms. Allocated memory is still 1.1 GB. Free memory is still 990.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:11:32,251 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 320.30 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.03 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.32 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 651.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.9 MB). Free memory was 940.6 MB in the beginning and 1.0 GB in the end (delta: -107.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1174.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 990.4 MB in the end (delta: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 11.5 GB. * Witness Printer took 83.56 ms. Allocated memory is still 1.1 GB. Free memory is still 990.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 4 error locations. SAFE Result, 1.1s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 46 SDtfs, 44 SDslu, 85 SDs, 0 SdLazy, 32 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 10 NumberOfFragments, 20 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 581 SizeOfPredicates, 3 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...