./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/bitvector/gcd_2_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_2_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 ca12b384c8180063e3f1c5738f7063e9219b0df5 ............................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:11:30,802 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:11:30,803 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:11:30,824 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:11:30,824 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:11:30,826 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:11:30,827 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:11:30,829 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:11:30,830 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:11:30,831 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:11:30,832 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:11:30,833 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:11:30,834 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:11:30,835 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:11:30,836 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:11:30,837 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:11:30,838 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:11:30,840 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:11:30,842 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:11:30,843 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:11:30,845 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:11:30,846 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:11:30,849 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:11:30,849 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:11:30,849 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:11:30,850 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:11:30,851 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:11:30,852 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:11:30,853 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:11:30,855 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:11:30,855 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:11:30,856 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:11:30,856 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:11:30,856 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:11:30,857 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:11:30,858 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:11:30,858 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2018-11-28 23:11:30,874 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:11:30,875 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:11:30,876 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:11:30,876 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:11:30,876 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:11:30,877 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:11:30,877 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:11:30,877 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:11:30,877 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:11:30,877 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:11:30,877 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:11:30,878 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:11:30,878 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:11:30,878 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:11:30,878 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:11:30,878 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:11:30,878 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:11:30,879 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:11:30,879 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:11:30,879 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:11:30,879 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:11:30,879 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:11:30,879 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:11:30,880 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:11:30,880 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:11:30,880 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:11:30,880 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:11:30,880 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:11:30,881 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:11:30,881 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:11:30,881 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:11:30,881 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:11:30,881 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 -> ca12b384c8180063e3f1c5738f7063e9219b0df5 [2018-11-28 23:11:30,928 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:11:30,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:11:30,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:11:30,953 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:11:30,954 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:11:30,955 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/bitvector/gcd_2_true-unreach-call_true-no-overflow.i [2018-11-28 23:11:31,032 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f7e3c03/88d72b1fc48b4d90a03c1b51675af67d/FLAG4f8462f55 [2018-11-28 23:11:31,459 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:11:31,460 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/bitvector/gcd_2_true-unreach-call_true-no-overflow.i [2018-11-28 23:11:31,465 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f7e3c03/88d72b1fc48b4d90a03c1b51675af67d/FLAG4f8462f55 [2018-11-28 23:11:31,819 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39f7e3c03/88d72b1fc48b4d90a03c1b51675af67d [2018-11-28 23:11:31,823 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:11:31,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:11:31,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:11:31,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:11:31,835 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:11:31,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:11:31" (1/1) ... [2018-11-28 23:11:31,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e74a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:31, skipping insertion in model container [2018-11-28 23:11:31,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:11:31" (1/1) ... [2018-11-28 23:11:31,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:11:31,869 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:11:32,099 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:11:32,105 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:11:32,133 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:11:32,160 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:11:32,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:32 WrapperNode [2018-11-28 23:11:32,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:11:32,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:11:32,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:11:32,163 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:11:32,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:32" (1/1) ... [2018-11-28 23:11:32,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:32" (1/1) ... [2018-11-28 23:11:32,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:11:32,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:11:32,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:11:32,190 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:11:32,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:32" (1/1) ... [2018-11-28 23:11:32,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:32" (1/1) ... [2018-11-28 23:11:32,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:32" (1/1) ... [2018-11-28 23:11:32,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:32" (1/1) ... [2018-11-28 23:11:32,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:32" (1/1) ... [2018-11-28 23:11:32,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:32" (1/1) ... [2018-11-28 23:11:32,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:32" (1/1) ... [2018-11-28 23:11:32,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:11:32,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:11:32,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:11:32,236 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:11:32,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:32" (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 23:11:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:11:32,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:11:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:11:32,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:11:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:11:32,380 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:11:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 23:11:32,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 23:11:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure gcd_test [2018-11-28 23:11:32,381 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd_test [2018-11-28 23:11:32,923 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:11:32,924 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 23:11:32,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:11:32 BoogieIcfgContainer [2018-11-28 23:11:32,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:11:32,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:11:32,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:11:32,930 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:11:32,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:11:31" (1/3) ... [2018-11-28 23:11:32,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158b6a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:11:32, skipping insertion in model container [2018-11-28 23:11:32,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:11:32" (2/3) ... [2018-11-28 23:11:32,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158b6a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:11:32, skipping insertion in model container [2018-11-28 23:11:32,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:11:32" (3/3) ... [2018-11-28 23:11:32,934 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2_true-unreach-call_true-no-overflow.i [2018-11-28 23:11:32,946 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:11:32,955 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 23:11:32,974 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 23:11:33,009 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:11:33,010 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:11:33,010 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:11:33,010 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:11:33,011 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:11:33,011 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:11:33,011 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:11:33,012 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:11:33,012 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:11:33,033 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-28 23:11:33,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:11:33,039 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:11:33,041 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:11:33,044 INFO L423 AbstractCegarLoop]: === Iteration 1 === [gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:11:33,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:11:33,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1185815207, now seen corresponding path program 1 times [2018-11-28 23:11:33,053 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:11:33,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:11:33,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:33,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:11:33,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:11:33,452 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 23:11:33,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:11:33,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:11:33,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 23:11:33,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:11:33,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:11:33,477 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 5 states. [2018-11-28 23:11:33,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:11:33,617 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2018-11-28 23:11:33,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:11:33,620 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 23:11:33,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:11:33,632 INFO L225 Difference]: With dead ends: 54 [2018-11-28 23:11:33,633 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 23:11:33,637 INFO L631 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 [2018-11-28 23:11:33,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 23:11:33,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-28 23:11:33,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 23:11:33,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-28 23:11:33,673 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2018-11-28 23:11:33,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:11:33,674 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-28 23:11:33,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 23:11:33,674 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-28 23:11:33,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:11:33,675 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:11:33,675 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:11:33,675 INFO L423 AbstractCegarLoop]: === Iteration 2 === [gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:11:33,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:11:33,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1894440332, now seen corresponding path program 1 times [2018-11-28 23:11:33,676 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:11:33,676 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:11:33,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:33,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:11:33,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:11:33,757 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 23:11:33,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:11:33,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:11:33,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 23:11:33,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:11:33,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:11:33,760 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 5 states. [2018-11-28 23:11:33,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:11:33,840 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-11-28 23:11:33,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:11:33,841 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-11-28 23:11:33,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:11:33,842 INFO L225 Difference]: With dead ends: 16 [2018-11-28 23:11:33,842 INFO L226 Difference]: Without dead ends: 15 [2018-11-28 23:11:33,843 INFO L631 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 [2018-11-28 23:11:33,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-28 23:11:33,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 23:11:33,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 23:11:33,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-28 23:11:33,847 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2018-11-28 23:11:33,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:11:33,847 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-11-28 23:11:33,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 23:11:33,848 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-28 23:11:33,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:11:33,849 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:11:33,849 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:11:33,849 INFO L423 AbstractCegarLoop]: === Iteration 3 === [gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:11:33,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:11:33,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1894434310, now seen corresponding path program 1 times [2018-11-28 23:11:33,850 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:11:33,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:11:33,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:33,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:11:33,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:11:33,903 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 23:11:33,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:11:33,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:11:33,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:11:33,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:11:33,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:11:33,905 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 3 states. [2018-11-28 23:11:33,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:11:33,920 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-11-28 23:11:33,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:11:33,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 23:11:33,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:11:33,922 INFO L225 Difference]: With dead ends: 15 [2018-11-28 23:11:33,922 INFO L226 Difference]: Without dead ends: 14 [2018-11-28 23:11:33,923 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:11:33,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-28 23:11:33,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-28 23:11:33,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-28 23:11:33,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-28 23:11:33,927 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2018-11-28 23:11:33,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:11:33,927 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-28 23:11:33,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:11:33,927 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-28 23:11:33,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 23:11:33,928 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:11:33,928 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:11:33,928 INFO L423 AbstractCegarLoop]: === Iteration 4 === [gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:11:33,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:11:33,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1401891779, now seen corresponding path program 1 times [2018-11-28 23:11:33,929 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:11:33,929 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:11:33,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:33,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:11:33,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:11:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:11:33,991 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 23:11:33,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:11:33,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:11:33,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:11:33,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:11:33,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:11:33,992 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 3 states. [2018-11-28 23:11:34,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:11:34,012 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-11-28 23:11:34,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:11:34,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-28 23:11:34,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:11:34,013 INFO L225 Difference]: With dead ends: 14 [2018-11-28 23:11:34,014 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 23:11:34,014 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:11:34,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 23:11:34,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 23:11:34,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 23:11:34,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:11:34,015 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-28 23:11:34,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:11:34,015 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:11:34,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:11:34,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:11:34,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 23:11:34,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 23:11:34,133 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 23:11:34,133 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:11:34,133 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:11:34,133 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 23:11:34,133 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 23:11:34,133 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 23:11:34,135 INFO L448 ceAbstractionStarter]: For program point L34-1(lines 34 36) no Hoare annotation was computed. [2018-11-28 23:11:34,136 INFO L444 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: (and (<= 0 (+ main_~x~0 128)) (<= 0 (+ main_~y~0 128))) [2018-11-28 23:11:34,136 INFO L448 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-11-28 23:11:34,136 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 26 39) the Hoare annotation is: true [2018-11-28 23:11:34,137 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 26 39) no Hoare annotation was computed. [2018-11-28 23:11:34,137 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 26 39) no Hoare annotation was computed. [2018-11-28 23:11:34,137 INFO L444 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (<= 0 (+ main_~x~0 128)) [2018-11-28 23:11:34,137 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 36) no Hoare annotation was computed. [2018-11-28 23:11:34,137 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-11-28 23:11:34,137 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-11-28 23:11:34,137 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-11-28 23:11:34,138 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-11-28 23:11:34,138 INFO L448 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-11-28 23:11:34,138 INFO L448 ceAbstractionStarter]: For program point gcd_testErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 23:11:34,138 INFO L448 ceAbstractionStarter]: For program point gcd_testEXIT(lines 10 23) no Hoare annotation was computed. [2018-11-28 23:11:34,138 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 11 23) no Hoare annotation was computed. [2018-11-28 23:11:34,138 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-28 23:11:34,139 INFO L448 ceAbstractionStarter]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2018-11-28 23:11:34,139 INFO L448 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-11-28 23:11:34,139 INFO L448 ceAbstractionStarter]: For program point gcd_testErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-11-28 23:11:34,139 INFO L448 ceAbstractionStarter]: For program point gcd_testErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-28 23:11:34,139 INFO L451 ceAbstractionStarter]: At program point gcd_testENTRY(lines 10 23) the Hoare annotation is: true [2018-11-28 23:11:34,139 INFO L448 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-28 23:11:34,140 INFO L448 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-28 23:11:34,140 INFO L448 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-11-28 23:11:34,140 INFO L448 ceAbstractionStarter]: For program point L14-4(lines 11 23) no Hoare annotation was computed. [2018-11-28 23:11:34,140 INFO L448 ceAbstractionStarter]: For program point gcd_testFINAL(lines 10 23) no Hoare annotation was computed. [2018-11-28 23:11:34,140 INFO L448 ceAbstractionStarter]: For program point gcd_testErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-11-28 23:11:34,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:11:34 BoogieIcfgContainer [2018-11-28 23:11:34,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:11:34,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:11:34,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:11:34,145 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:11:34,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:11:32" (3/4) ... [2018-11-28 23:11:34,149 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 23:11:34,157 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 23:11:34,158 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 23:11:34,158 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 23:11:34,158 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd_test [2018-11-28 23:11:34,163 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-28 23:11:34,163 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 23:11:34,164 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 23:11:34,221 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:11:34,221 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:11:34,222 INFO L168 Benchmark]: Toolchain (without parser) took 2397.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 952.7 MB in the beginning and 1.0 GB in the end (delta: -86.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:11:34,224 INFO L168 Benchmark]: CDTParser took 0.47 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 23:11:34,224 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.01 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:11:34,225 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.07 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:11:34,225 INFO L168 Benchmark]: Boogie Preprocessor took 45.53 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:11:34,226 INFO L168 Benchmark]: RCFGBuilder took 689.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:11:34,227 INFO L168 Benchmark]: TraceAbstraction took 1218.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:11:34,227 INFO L168 Benchmark]: Witness Printer took 76.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:11:34,231 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 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 335.01 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 27.07 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.53 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 689.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1218.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. * Witness Printer took 76.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. 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: 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 - PositiveResult [Line: 14]: 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, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 62 SDtfs, 50 SDslu, 99 SDs, 0 SdLazy, 36 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 10 NumberOfFragments, 22 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 786 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...