./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/GulwaniJainKoskinen-PLDI2009-Fig1_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/GulwaniJainKoskinen-PLDI2009-Fig1_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d7d414d68736ab19121f0afd030fc9c628e90ba4 .................................................................................................................................................................................................................................................................................................................. 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 0.1.23-635dfa2 [2018-12-01 15:10:55,833 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 15:10:55,834 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 15:10:55,840 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 15:10:55,840 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 15:10:55,841 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 15:10:55,842 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 15:10:55,843 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 15:10:55,844 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 15:10:55,844 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 15:10:55,845 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 15:10:55,845 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 15:10:55,845 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 15:10:55,846 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 15:10:55,846 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 15:10:55,847 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 15:10:55,847 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 15:10:55,848 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 15:10:55,849 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 15:10:55,850 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 15:10:55,851 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 15:10:55,851 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 15:10:55,852 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 15:10:55,853 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 15:10:55,853 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 15:10:55,853 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 15:10:55,854 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 15:10:55,854 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 15:10:55,855 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 15:10:55,855 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 15:10:55,856 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 15:10:55,856 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 15:10:55,856 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 15:10:55,856 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 15:10:55,857 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 15:10:55,857 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 15:10:55,858 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-12-01 15:10:55,865 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 15:10:55,865 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 15:10:55,866 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 15:10:55,866 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 15:10:55,866 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 15:10:55,867 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 15:10:55,867 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 15:10:55,867 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 15:10:55,867 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 15:10:55,867 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 15:10:55,867 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 15:10:55,868 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 15:10:55,868 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 15:10:55,868 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 15:10:55,868 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-01 15:10:55,868 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 15:10:55,868 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 15:10:55,868 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 15:10:55,869 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 15:10:55,869 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 15:10:55,869 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 15:10:55,869 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 15:10:55,869 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 15:10:55,869 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 15:10:55,869 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 15:10:55,870 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 15:10:55,870 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 15:10:55,870 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 15:10:55,870 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 15:10:55,870 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7d414d68736ab19121f0afd030fc9c628e90ba4 [2018-12-01 15:10:55,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 15:10:55,894 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 15:10:55,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 15:10:55,897 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 15:10:55,897 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 15:10:55,898 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/GulwaniJainKoskinen-PLDI2009-Fig1_false-no-overflow.c [2018-12-01 15:10:55,932 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer/data/03b396d87/e0c08d75631849d2b80c3d5adfcf1ebb/FLAG8acdfaa6a [2018-12-01 15:10:56,275 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 15:10:56,276 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/sv-benchmarks/c/termination-crafted-lit/GulwaniJainKoskinen-PLDI2009-Fig1_false-no-overflow.c [2018-12-01 15:10:56,279 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer/data/03b396d87/e0c08d75631849d2b80c3d5adfcf1ebb/FLAG8acdfaa6a [2018-12-01 15:10:56,670 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer/data/03b396d87/e0c08d75631849d2b80c3d5adfcf1ebb [2018-12-01 15:10:56,672 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 15:10:56,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 15:10:56,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 15:10:56,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 15:10:56,677 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 15:10:56,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:10:56" (1/1) ... [2018-12-01 15:10:56,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d648fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:10:56, skipping insertion in model container [2018-12-01 15:10:56,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:10:56" (1/1) ... [2018-12-01 15:10:56,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 15:10:56,701 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 15:10:56,784 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 15:10:56,786 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 15:10:56,794 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 15:10:56,802 INFO L195 MainTranslator]: Completed translation [2018-12-01 15:10:56,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:10:56 WrapperNode [2018-12-01 15:10:56,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 15:10:56,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 15:10:56,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 15:10:56,803 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 15:10:56,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:10:56" (1/1) ... [2018-12-01 15:10:56,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:10:56" (1/1) ... [2018-12-01 15:10:56,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 15:10:56,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 15:10:56,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 15:10:56,819 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 15:10:56,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:10:56" (1/1) ... [2018-12-01 15:10:56,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:10:56" (1/1) ... [2018-12-01 15:10:56,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:10:56" (1/1) ... [2018-12-01 15:10:56,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:10:56" (1/1) ... [2018-12-01 15:10:56,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:10:56" (1/1) ... [2018-12-01 15:10:56,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:10:56" (1/1) ... [2018-12-01 15:10:56,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:10:56" (1/1) ... [2018-12-01 15:10:56,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 15:10:56,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 15:10:56,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 15:10:56,834 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 15:10:56,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:10:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 15:10:56,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 15:10:56,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 15:10:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 15:10:56,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 15:10:56,895 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 15:10:56,895 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 15:10:56,981 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 15:10:56,981 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-01 15:10:56,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:10:56 BoogieIcfgContainer [2018-12-01 15:10:56,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 15:10:56,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 15:10:56,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 15:10:56,984 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 15:10:56,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:10:56" (1/3) ... [2018-12-01 15:10:56,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fadc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:10:56, skipping insertion in model container [2018-12-01 15:10:56,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:10:56" (2/3) ... [2018-12-01 15:10:56,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fadc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:10:56, skipping insertion in model container [2018-12-01 15:10:56,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:10:56" (3/3) ... [2018-12-01 15:10:56,986 INFO L112 eAbstractionObserver]: Analyzing ICFG GulwaniJainKoskinen-PLDI2009-Fig1_false-no-overflow.c [2018-12-01 15:10:56,991 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 15:10:56,995 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-01 15:10:57,005 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-01 15:10:57,022 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 15:10:57,023 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 15:10:57,023 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 15:10:57,023 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 15:10:57,023 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 15:10:57,023 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 15:10:57,023 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 15:10:57,023 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 15:10:57,023 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 15:10:57,034 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-12-01 15:10:57,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-01 15:10:57,037 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 15:10:57,037 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-01 15:10:57,039 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 15:10:57,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 15:10:57,042 INFO L82 PathProgramCache]: Analyzing trace with hash -336853775, now seen corresponding path program 1 times [2018-12-01 15:10:57,043 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 15:10:57,043 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 15:10:57,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:10:57,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 15:10:57,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:10:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:10:57,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:10:57,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 15:10:57,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 15:10:57,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 15:10:57,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 15:10:57,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 15:10:57,144 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2018-12-01 15:10:57,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 15:10:57,184 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-12-01 15:10:57,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 15:10:57,185 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-12-01 15:10:57,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 15:10:57,190 INFO L225 Difference]: With dead ends: 31 [2018-12-01 15:10:57,190 INFO L226 Difference]: Without dead ends: 17 [2018-12-01 15:10:57,192 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-01 15:10:57,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-12-01 15:10:57,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-12-01 15:10:57,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-01 15:10:57,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-12-01 15:10:57,213 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 7 [2018-12-01 15:10:57,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 15:10:57,214 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-12-01 15:10:57,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 15:10:57,214 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-01 15:10:57,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-01 15:10:57,214 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 15:10:57,214 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 15:10:57,214 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 15:10:57,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 15:10:57,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1852532392, now seen corresponding path program 1 times [2018-12-01 15:10:57,215 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 15:10:57,215 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 15:10:57,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:10:57,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 15:10:57,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:10:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 15:10:57,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 15:10:57,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 15:10:57,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 15:10:57,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 15:10:57,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 15:10:57,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 15:10:57,231 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-12-01 15:10:57,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 15:10:57,238 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-12-01 15:10:57,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 15:10:57,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-01 15:10:57,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 15:10:57,239 INFO L225 Difference]: With dead ends: 17 [2018-12-01 15:10:57,239 INFO L226 Difference]: Without dead ends: 16 [2018-12-01 15:10:57,239 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 [2018-12-01 15:10:57,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-12-01 15:10:57,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-12-01 15:10:57,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-01 15:10:57,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-12-01 15:10:57,241 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 8 [2018-12-01 15:10:57,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 15:10:57,241 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-12-01 15:10:57,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 15:10:57,241 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-01 15:10:57,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-01 15:10:57,242 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 15:10:57,242 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 15:10:57,242 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-01 15:10:57,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 15:10:57,242 INFO L82 PathProgramCache]: Analyzing trace with hash -114500992, now seen corresponding path program 1 times [2018-12-01 15:10:57,242 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 15:10:57,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 15:10:57,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:10:57,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 15:10:57,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 15:10:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:10:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 15:10:57,265 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 15:10:57,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:10:57 BoogieIcfgContainer [2018-12-01 15:10:57,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 15:10:57,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 15:10:57,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 15:10:57,279 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 15:10:57,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:10:56" (3/4) ... [2018-12-01 15:10:57,280 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-01 15:10:57,303 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_427ee180-96a6-4144-89d7-9516ffecdf55/bin-2019/uautomizer/witness.graphml [2018-12-01 15:10:57,303 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 15:10:57,303 INFO L168 Benchmark]: Toolchain (without parser) took 630.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 961.4 MB in the beginning and 1.0 GB in the end (delta: -69.4 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2018-12-01 15:10:57,304 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 15:10:57,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 128.26 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 15:10:57,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.52 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 15:10:57,305 INFO L168 Benchmark]: Boogie Preprocessor took 15.70 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 15:10:57,305 INFO L168 Benchmark]: RCFGBuilder took 146.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -114.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-01 15:10:57,305 INFO L168 Benchmark]: TraceAbstraction took 296.91 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: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2018-12-01 15:10:57,306 INFO L168 Benchmark]: Witness Printer took 24.07 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. [2018-12-01 15:10:57,307 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 128.26 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 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 15.52 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.70 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 146.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -114.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 296.91 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: 34.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. * Witness Printer took 24.07 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: - CounterExampleResult [Line: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int id, maxId, tmp; [L17] id = __VERIFIER_nondet_int() [L18] maxId = __VERIFIER_nondet_int() [L21] COND TRUE 0 <= id && id < maxId VAL [id=2147483646, maxId=2147483647] [L22] EXPR id+1 [L22] tmp = id+1 VAL [id=2147483646, maxId=2147483647, tmp=2147483647] [L23] tmp!=id && __VERIFIER_nondet_int() != 0 [L23] tmp!=id && __VERIFIER_nondet_int() != 0 VAL [__VERIFIER_nondet_int()=1, id=2147483646, maxId=2147483647, tmp=2147483647, tmp!=id && __VERIFIER_nondet_int() != 0=1] [L23] COND TRUE tmp!=id && __VERIFIER_nondet_int() != 0 [L24] COND TRUE tmp <= maxId VAL [id=2147483646, maxId=2147483647, tmp=2147483647] [L25] tmp + 1 VAL [id=2147483646, maxId=2147483647, tmp=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 4 error locations. UNSAFE Result, 0.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 45 SDslu, 20 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...