./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12_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_a3b50845-b443-4f37-b24c-3bcea22f20fd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a3b50845-b443-4f37-b24c-3bcea22f20fd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a3b50845-b443-4f37-b24c-3bcea22f20fd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a3b50845-b443-4f37-b24c-3bcea22f20fd/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a3b50845-b443-4f37-b24c-3bcea22f20fd/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a3b50845-b443-4f37-b24c-3bcea22f20fd/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 f299f7e43971e739d4799ece224b61839f7f06e4 .................................................................................................................................................................................................................................. 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 [2018-12-08 18:14:10,290 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 18:14:10,291 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 18:14:10,297 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 18:14:10,297 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 18:14:10,298 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 18:14:10,298 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 18:14:10,299 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 18:14:10,300 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 18:14:10,300 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 18:14:10,301 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 18:14:10,301 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 18:14:10,301 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 18:14:10,302 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 18:14:10,302 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 18:14:10,303 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 18:14:10,303 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 18:14:10,304 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 18:14:10,305 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 18:14:10,305 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 18:14:10,306 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 18:14:10,306 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 18:14:10,307 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 18:14:10,307 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 18:14:10,307 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 18:14:10,308 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 18:14:10,308 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 18:14:10,309 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 18:14:10,309 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 18:14:10,309 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 18:14:10,310 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 18:14:10,310 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 18:14:10,310 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 18:14:10,310 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 18:14:10,311 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 18:14:10,311 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 18:14:10,311 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a3b50845-b443-4f37-b24c-3bcea22f20fd/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-12-08 18:14:10,318 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 18:14:10,318 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 18:14:10,318 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 18:14:10,318 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 18:14:10,319 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 18:14:10,319 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 18:14:10,319 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 18:14:10,319 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 18:14:10,319 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 18:14:10,319 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 18:14:10,319 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 18:14:10,319 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 18:14:10,319 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 18:14:10,319 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 18:14:10,319 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-08 18:14:10,320 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 18:14:10,320 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 18:14:10,320 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 18:14:10,320 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 18:14:10,320 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 18:14:10,320 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 18:14:10,320 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 18:14:10,320 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 18:14:10,320 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 18:14:10,320 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 18:14:10,320 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 18:14:10,321 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 18:14:10,321 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 18:14:10,321 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 18:14:10,321 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_a3b50845-b443-4f37-b24c-3bcea22f20fd/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 -> f299f7e43971e739d4799ece224b61839f7f06e4 [2018-12-08 18:14:10,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 18:14:10,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 18:14:10,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 18:14:10,346 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 18:14:10,346 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 18:14:10,347 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a3b50845-b443-4f37-b24c-3bcea22f20fd/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12_false-no-overflow.c [2018-12-08 18:14:10,382 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3b50845-b443-4f37-b24c-3bcea22f20fd/bin-2019/uautomizer/data/94d28c456/e3087c04a6794c739656cf7771214def/FLAG2a48659b9 [2018-12-08 18:14:10,673 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 18:14:10,674 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a3b50845-b443-4f37-b24c-3bcea22f20fd/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12_false-no-overflow.c [2018-12-08 18:14:10,677 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3b50845-b443-4f37-b24c-3bcea22f20fd/bin-2019/uautomizer/data/94d28c456/e3087c04a6794c739656cf7771214def/FLAG2a48659b9 [2018-12-08 18:14:11,125 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a3b50845-b443-4f37-b24c-3bcea22f20fd/bin-2019/uautomizer/data/94d28c456/e3087c04a6794c739656cf7771214def [2018-12-08 18:14:11,127 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 18:14:11,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 18:14:11,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 18:14:11,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 18:14:11,131 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 18:14:11,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 06:14:11" (1/1) ... [2018-12-08 18:14:11,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d57af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:11, skipping insertion in model container [2018-12-08 18:14:11,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 06:14:11" (1/1) ... [2018-12-08 18:14:11,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 18:14:11,149 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 18:14:11,230 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 18:14:11,232 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 18:14:11,240 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 18:14:11,248 INFO L195 MainTranslator]: Completed translation [2018-12-08 18:14:11,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:11 WrapperNode [2018-12-08 18:14:11,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 18:14:11,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 18:14:11,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 18:14:11,249 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 18:14:11,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:11" (1/1) ... [2018-12-08 18:14:11,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:11" (1/1) ... [2018-12-08 18:14:11,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 18:14:11,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 18:14:11,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 18:14:11,261 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 18:14:11,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:11" (1/1) ... [2018-12-08 18:14:11,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:11" (1/1) ... [2018-12-08 18:14:11,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:11" (1/1) ... [2018-12-08 18:14:11,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:11" (1/1) ... [2018-12-08 18:14:11,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:11" (1/1) ... [2018-12-08 18:14:11,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:11" (1/1) ... [2018-12-08 18:14:11,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:11" (1/1) ... [2018-12-08 18:14:11,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 18:14:11,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 18:14:11,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 18:14:11,273 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 18:14:11,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3b50845-b443-4f37-b24c-3bcea22f20fd/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 [2018-12-08 18:14:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 18:14:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 18:14:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 18:14:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 18:14:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 18:14:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 18:14:11,417 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 18:14:11,417 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 18:14:11,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:14:11 BoogieIcfgContainer [2018-12-08 18:14:11,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 18:14:11,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 18:14:11,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 18:14:11,420 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 18:14:11,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 06:14:11" (1/3) ... [2018-12-08 18:14:11,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f1dbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 06:14:11, skipping insertion in model container [2018-12-08 18:14:11,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 06:14:11" (2/3) ... [2018-12-08 18:14:11,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f1dbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 06:14:11, skipping insertion in model container [2018-12-08 18:14:11,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:14:11" (3/3) ... [2018-12-08 18:14:11,422 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.12_false-no-overflow.c [2018-12-08 18:14:11,428 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 18:14:11,432 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-08 18:14:11,443 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-08 18:14:11,460 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 18:14:11,460 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 18:14:11,461 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 18:14:11,461 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 18:14:11,461 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 18:14:11,461 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 18:14:11,461 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 18:14:11,461 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 18:14:11,461 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 18:14:11,471 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-12-08 18:14:11,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 18:14:11,474 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 18:14:11,475 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 18:14:11,476 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-08 18:14:11,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 18:14:11,480 INFO L82 PathProgramCache]: Analyzing trace with hash -37667266, now seen corresponding path program 1 times [2018-12-08 18:14:11,481 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 18:14:11,481 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 18:14:11,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:11,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 18:14:11,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 18:14:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 18:14:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 18:14:11,551 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 18:14:11,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 06:14:11 BoogieIcfgContainer [2018-12-08 18:14:11,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 18:14:11,563 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 18:14:11,563 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 18:14:11,564 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 18:14:11,564 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 06:14:11" (3/4) ... [2018-12-08 18:14:11,565 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 18:14:11,587 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a3b50845-b443-4f37-b24c-3bcea22f20fd/bin-2019/uautomizer/witness.graphml [2018-12-08 18:14:11,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 18:14:11,587 INFO L168 Benchmark]: Toolchain (without parser) took 459.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -116.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:14:11,588 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:14:11,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 119.58 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-08 18:14:11,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.67 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:14:11,589 INFO L168 Benchmark]: Boogie Preprocessor took 11.83 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 18:14:11,589 INFO L168 Benchmark]: RCFGBuilder took 145.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -148.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-12-08 18:14:11,590 INFO L168 Benchmark]: TraceAbstraction took 144.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-08 18:14:11,590 INFO L168 Benchmark]: Witness Printer took 23.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 18:14:11,592 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 119.58 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.67 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.83 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 145.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -148.8 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 144.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 23.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y, oldx; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x < 5 [L27] oldx = x VAL [x=2, x=2, y=-2147483646] [L28] oldx - y VAL [x=2, x=2, y=-2147483646] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 4 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...