./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/joey.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/joey.c -s /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6360f720317c1229a4bb277806239106bfb4e5c0 ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:56:44,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:44,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:44,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:44,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:44,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:44,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:44,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:44,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:44,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:44,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:44,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:44,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:44,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:44,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:44,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:44,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:44,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:44,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:44,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:44,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:44,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:44,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:44,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:44,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:44,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:44,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:44,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:44,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:44,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:44,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:44,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:44,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:44,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:44,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:44,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:44,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:44,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:44,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:44,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:44,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:44,862 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-10-22 08:56:44,873 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:44,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:44,884 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:44,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:44,884 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:44,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:44,885 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:56:44,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:44,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:44,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:56:44,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:56:44,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:56:44,886 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 08:56:44,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:44,886 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:44,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:56:44,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:44,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:44,887 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:56:44,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:56:44,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:44,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:44,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:56:44,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:56:44,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:44,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:56:44,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:56:44,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6360f720317c1229a4bb277806239106bfb4e5c0 [2019-10-22 08:56:44,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:44,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:44,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:44,932 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:44,933 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:44,933 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/joey.c [2019-10-22 08:56:44,986 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer/data/774081fc7/f50ba0764dfc482a801d308c178fa386/FLAG50e9aa7a0 [2019-10-22 08:56:45,375 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:45,376 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/sv-benchmarks/c/termination-crafted-lit/joey.c [2019-10-22 08:56:45,380 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer/data/774081fc7/f50ba0764dfc482a801d308c178fa386/FLAG50e9aa7a0 [2019-10-22 08:56:45,393 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer/data/774081fc7/f50ba0764dfc482a801d308c178fa386 [2019-10-22 08:56:45,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:45,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:45,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:45,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:45,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:45,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:45" (1/1) ... [2019-10-22 08:56:45,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c99c520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:45, skipping insertion in model container [2019-10-22 08:56:45,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:45" (1/1) ... [2019-10-22 08:56:45,416 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:45,427 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:45,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:45,556 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:45,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:45,636 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:45,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:45 WrapperNode [2019-10-22 08:56:45,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:45,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:45,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:45,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:45,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:45" (1/1) ... [2019-10-22 08:56:45,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:45" (1/1) ... [2019-10-22 08:56:45,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:45,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:45,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:45,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:45,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:45" (1/1) ... [2019-10-22 08:56:45,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:45" (1/1) ... [2019-10-22 08:56:45,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:45" (1/1) ... [2019-10-22 08:56:45,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:45" (1/1) ... [2019-10-22 08:56:45,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:45" (1/1) ... [2019-10-22 08:56:45,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:45" (1/1) ... [2019-10-22 08:56:45,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:45" (1/1) ... [2019-10-22 08:56:45,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:45,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:45,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:45,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:45,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2019-10-22 08:56:45,749 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2019-10-22 08:56:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:45,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:45,949 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:45,949 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:56:45,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:45 BoogieIcfgContainer [2019-10-22 08:56:45,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:45,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:45,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:45,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:45,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:56:45" (1/3) ... [2019-10-22 08:56:45,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa9b3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:45, skipping insertion in model container [2019-10-22 08:56:45,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:45" (2/3) ... [2019-10-22 08:56:45,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa9b3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:45, skipping insertion in model container [2019-10-22 08:56:45,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:45" (3/3) ... [2019-10-22 08:56:45,958 INFO L109 eAbstractionObserver]: Analyzing ICFG joey.c [2019-10-22 08:56:45,967 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:45,974 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-10-22 08:56:45,984 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-10-22 08:56:46,005 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:46,006 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:56:46,006 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:46,006 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:46,006 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:46,006 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:46,006 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:46,006 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:46,023 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-10-22 08:56:46,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:56:46,028 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:46,029 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:56:46,039 INFO L410 AbstractCegarLoop]: === Iteration 1 === [recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:56:46,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:46,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1873828178, now seen corresponding path program 1 times [2019-10-22 08:56:46,060 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:46,060 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344309260] [2019-10-22 08:56:46,060 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:46,060 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:46,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:46,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:46,300 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344309260] [2019-10-22 08:56:46,301 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:46,301 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:56:46,301 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844087843] [2019-10-22 08:56:46,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:56:46,306 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:46,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:56:46,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:56:46,320 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 7 states. [2019-10-22 08:56:46,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:46,488 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2019-10-22 08:56:46,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:46,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2019-10-22 08:56:46,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:46,500 INFO L225 Difference]: With dead ends: 66 [2019-10-22 08:56:46,501 INFO L226 Difference]: Without dead ends: 52 [2019-10-22 08:56:46,504 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:56:46,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-10-22 08:56:46,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2019-10-22 08:56:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-10-22 08:56:46,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2019-10-22 08:56:46,554 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 6 [2019-10-22 08:56:46,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:46,555 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2019-10-22 08:56:46,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:56:46,555 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2019-10-22 08:56:46,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 08:56:46,556 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:46,556 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-10-22 08:56:46,557 INFO L410 AbstractCegarLoop]: === Iteration 2 === [recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 08:56:46,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:46,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1873828402, now seen corresponding path program 1 times [2019-10-22 08:56:46,557 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:46,557 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307857877] [2019-10-22 08:56:46,557 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:46,557 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:46,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:46,587 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:46,587 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:56:46,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:46 BoogieIcfgContainer [2019-10-22 08:56:46,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:46,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:46,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:46,611 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:46,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:45" (3/4) ... [2019-10-22 08:56:46,615 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:56:46,663 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_98f8c8fc-e4fe-458a-a361-1d585517c94f/bin/uautomizer/witness.graphml [2019-10-22 08:56:46,663 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:46,665 INFO L168 Benchmark]: Toolchain (without parser) took 1268.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 949.8 MB in the beginning and 1.1 GB in the end (delta: -107.2 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:46,666 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:46,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 949.8 MB in the beginning and 1.1 GB in the end (delta: -176.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:46,667 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:46,667 INFO L168 Benchmark]: Boogie Preprocessor took 16.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:46,668 INFO L168 Benchmark]: RCFGBuilder took 268.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:46,668 INFO L168 Benchmark]: TraceAbstraction took 658.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:46,669 INFO L168 Benchmark]: Witness Printer took 52.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:46,671 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 236.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 949.8 MB in the beginning and 1.1 GB in the end (delta: -176.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 268.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 658.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 11.5 GB. * Witness Printer took 52.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y; [L22] CALL rec(x) VAL [\old(x)=2147483647] [L10] COND FALSE !(x <= 0) VAL [\old(x)=2147483647, x=2147483647] [L12] COND FALSE !(x%2 == 0) VAL [\old(x)=2147483647, x=2147483647] [L15] ++x VAL [\old(x)=2147483647, x=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 8 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 45 SDslu, 71 SDs, 0 SdLazy, 68 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...