./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-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_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/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 d50c9e2c4d6ea0adce599ea0d63e463f6e274ffe ..................................................................................................................................................................................................................................................................... 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 [2018-12-09 13:25:57,811 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 13:25:57,812 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 13:25:57,818 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 13:25:57,819 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 13:25:57,819 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 13:25:57,820 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 13:25:57,821 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 13:25:57,821 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 13:25:57,822 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 13:25:57,822 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 13:25:57,822 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 13:25:57,823 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 13:25:57,823 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 13:25:57,824 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 13:25:57,824 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 13:25:57,825 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 13:25:57,826 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 13:25:57,827 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 13:25:57,827 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 13:25:57,828 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 13:25:57,828 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 13:25:57,830 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 13:25:57,830 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 13:25:57,830 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 13:25:57,830 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 13:25:57,831 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 13:25:57,831 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 13:25:57,832 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 13:25:57,832 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 13:25:57,832 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 13:25:57,833 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 13:25:57,833 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 13:25:57,833 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 13:25:57,833 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 13:25:57,834 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 13:25:57,834 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-12-09 13:25:57,841 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 13:25:57,842 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 13:25:57,842 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 13:25:57,842 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 13:25:57,842 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 13:25:57,843 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 13:25:57,843 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 13:25:57,843 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 13:25:57,843 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 13:25:57,843 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 13:25:57,843 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 13:25:57,843 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 13:25:57,843 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 13:25:57,843 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 13:25:57,843 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 13:25:57,843 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 13:25:57,843 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 13:25:57,844 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 13:25:57,844 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 13:25:57,844 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 13:25:57,844 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 13:25:57,844 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 13:25:57,844 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 13:25:57,844 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 13:25:57,844 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 13:25:57,844 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 13:25:57,844 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 13:25:57,844 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 13:25:57,844 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 13:25:57,845 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_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/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 -> d50c9e2c4d6ea0adce599ea0d63e463f6e274ffe [2018-12-09 13:25:57,862 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 13:25:57,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 13:25:57,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 13:25:57,875 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 13:25:57,876 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 13:25:57,876 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1_false-no-overflow.c [2018-12-09 13:25:57,919 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/bin-2019/uautomizer/data/2adc25e7e/6b32067d48db4d428622f74c21b886a8/FLAGc727f36ed [2018-12-09 13:25:58,238 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 13:25:58,239 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1_false-no-overflow.c [2018-12-09 13:25:58,242 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/bin-2019/uautomizer/data/2adc25e7e/6b32067d48db4d428622f74c21b886a8/FLAGc727f36ed [2018-12-09 13:25:58,250 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/bin-2019/uautomizer/data/2adc25e7e/6b32067d48db4d428622f74c21b886a8 [2018-12-09 13:25:58,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 13:25:58,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 13:25:58,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 13:25:58,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 13:25:58,255 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 13:25:58,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:25:58" (1/1) ... [2018-12-09 13:25:58,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5cabf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:58, skipping insertion in model container [2018-12-09 13:25:58,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:25:58" (1/1) ... [2018-12-09 13:25:58,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 13:25:58,273 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 13:25:58,355 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:25:58,357 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 13:25:58,367 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:25:58,374 INFO L195 MainTranslator]: Completed translation [2018-12-09 13:25:58,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:58 WrapperNode [2018-12-09 13:25:58,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 13:25:58,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 13:25:58,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 13:25:58,375 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 13:25:58,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:58" (1/1) ... [2018-12-09 13:25:58,383 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:58" (1/1) ... [2018-12-09 13:25:58,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 13:25:58,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 13:25:58,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 13:25:58,387 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 13:25:58,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:58" (1/1) ... [2018-12-09 13:25:58,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:58" (1/1) ... [2018-12-09 13:25:58,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:58" (1/1) ... [2018-12-09 13:25:58,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:58" (1/1) ... [2018-12-09 13:25:58,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:58" (1/1) ... [2018-12-09 13:25:58,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:58" (1/1) ... [2018-12-09 13:25:58,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:58" (1/1) ... [2018-12-09 13:25:58,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 13:25:58,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 13:25:58,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 13:25:58,399 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 13:25:58,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/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 [2018-12-09 13:25:58,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 13:25:58,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 13:25:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 13:25:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 13:25:58,460 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 13:25:58,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 13:25:58,560 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 13:25:58,561 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 13:25:58,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:25:58 BoogieIcfgContainer [2018-12-09 13:25:58,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 13:25:58,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 13:25:58,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 13:25:58,563 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 13:25:58,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:25:58" (1/3) ... [2018-12-09 13:25:58,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2773bbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:25:58, skipping insertion in model container [2018-12-09 13:25:58,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:25:58" (2/3) ... [2018-12-09 13:25:58,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2773bbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:25:58, skipping insertion in model container [2018-12-09 13:25:58,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:25:58" (3/3) ... [2018-12-09 13:25:58,566 INFO L112 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-ICALP2005-Fig1_false-no-overflow.c [2018-12-09 13:25:58,572 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 13:25:58,576 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2018-12-09 13:25:58,586 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2018-12-09 13:25:58,604 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 13:25:58,604 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 13:25:58,604 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 13:25:58,604 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 13:25:58,604 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 13:25:58,604 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 13:25:58,605 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 13:25:58,605 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 13:25:58,605 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 13:25:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-12-09 13:25:58,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 13:25:58,619 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:25:58,619 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:25:58,621 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 13:25:58,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:25:58,625 INFO L82 PathProgramCache]: Analyzing trace with hash 846238556, now seen corresponding path program 1 times [2018-12-09 13:25:58,626 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 13:25:58,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 13:25:58,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:58,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:25:58,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:25:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:25:58,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:25:58,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 13:25:58,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 13:25:58,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 13:25:58,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 13:25:58,720 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2018-12-09 13:25:58,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:25:58,781 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2018-12-09 13:25:58,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 13:25:58,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-09 13:25:58,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:25:58,788 INFO L225 Difference]: With dead ends: 56 [2018-12-09 13:25:58,788 INFO L226 Difference]: Without dead ends: 42 [2018-12-09 13:25:58,790 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 [2018-12-09 13:25:58,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-09 13:25:58,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2018-12-09 13:25:58,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-09 13:25:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2018-12-09 13:25:58,810 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 7 [2018-12-09 13:25:58,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:25:58,810 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2018-12-09 13:25:58,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 13:25:58,811 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2018-12-09 13:25:58,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 13:25:58,811 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:25:58,811 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:25:58,811 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 13:25:58,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:25:58,811 INFO L82 PathProgramCache]: Analyzing trace with hash 463591501, now seen corresponding path program 1 times [2018-12-09 13:25:58,812 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 13:25:58,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 13:25:58,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:58,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:25:58,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:25:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 13:25:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 13:25:58,832 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 13:25:58,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:25:58 BoogieIcfgContainer [2018-12-09 13:25:58,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 13:25:58,845 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 13:25:58,845 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 13:25:58,845 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 13:25:58,845 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:25:58" (3/4) ... [2018-12-09 13:25:58,847 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 13:25:58,869 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_98eaf335-43a1-47b9-aa81-bdff1c9cdfc3/bin-2019/uautomizer/witness.graphml [2018-12-09 13:25:58,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 13:25:58,870 INFO L168 Benchmark]: Toolchain (without parser) took 617.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 961.4 MB in the beginning and 1.1 GB in the end (delta: -109.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2018-12-09 13:25:58,871 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-12-09 13:25:58,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 121.78 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. [2018-12-09 13:25:58,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.73 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. [2018-12-09 13:25:58,871 INFO L168 Benchmark]: Boogie Preprocessor took 11.72 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. [2018-12-09 13:25:58,872 INFO L168 Benchmark]: RCFGBuilder took 162.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-09 13:25:58,872 INFO L168 Benchmark]: TraceAbstraction took 283.21 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. [2018-12-09 13:25:58,872 INFO L168 Benchmark]: Witness Printer took 24.42 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-09 13:25:58,874 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 121.78 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 11.73 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 11.72 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 162.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 283.21 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. * Witness Printer took 24.42 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x, y, N; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] N = __VERIFIER_nondet_int() [L21] COND TRUE N < 536870912 && x < 536870912 && y < 536870912 && x >= -1073741824 VAL [N=0, x=-1, y=-2147483648] [L22] x + y VAL [N=0, x=-1, y=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 34 locations, 10 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 21 SDslu, 11 SDs, 0 SdLazy, 39 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 1 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...