./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/cstrncmp_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/termination-crafted-lit/cstrncmp_false-no-overflow.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 01bf3c13fb8dbd0777aa4be7a3e595427bd1de37 ................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 21:28:30,518 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 21:28:30,520 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 21:28:30,532 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 21:28:30,533 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 21:28:30,534 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 21:28:30,536 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 21:28:30,538 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 21:28:30,540 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 21:28:30,540 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 21:28:30,541 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 21:28:30,542 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 21:28:30,543 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 21:28:30,543 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 21:28:30,545 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 21:28:30,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 21:28:30,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 21:28:30,549 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 21:28:30,552 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 21:28:30,553 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 21:28:30,555 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 21:28:30,556 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 21:28:30,559 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 21:28:30,559 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 21:28:30,560 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 21:28:30,561 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 21:28:30,562 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 21:28:30,563 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 21:28:30,564 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 21:28:30,565 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 21:28:30,565 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 21:28:30,566 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 21:28:30,567 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 21:28:30,567 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 21:28:30,568 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 21:28:30,569 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 21:28:30,569 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 21:28:30,585 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 21:28:30,585 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 21:28:30,587 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 21:28:30,587 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 21:28:30,587 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 21:28:30,588 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 21:28:30,588 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 21:28:30,588 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 21:28:30,588 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 21:28:30,588 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 21:28:30,588 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 21:28:30,589 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 21:28:30,589 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 21:28:30,589 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 21:28:30,589 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 21:28:30,589 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 21:28:30,589 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 21:28:30,590 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 21:28:30,591 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 21:28:30,592 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 21:28:30,592 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 21:28:30,592 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 21:28:30,592 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 21:28:30,592 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 21:28:30,592 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 21:28:30,593 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 21:28:30,593 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01bf3c13fb8dbd0777aa4be7a3e595427bd1de37 [2019-01-14 21:28:30,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 21:28:30,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 21:28:30,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 21:28:30,684 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 21:28:30,684 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 21:28:30,685 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/cstrncmp_false-no-overflow.c [2019-01-14 21:28:30,747 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1357d9f26/2c5a8480b2674501bab16fa3de536bc4/FLAGd4548d0ec [2019-01-14 21:28:31,171 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 21:28:31,172 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/cstrncmp_false-no-overflow.c [2019-01-14 21:28:31,180 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1357d9f26/2c5a8480b2674501bab16fa3de536bc4/FLAGd4548d0ec [2019-01-14 21:28:31,530 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1357d9f26/2c5a8480b2674501bab16fa3de536bc4 [2019-01-14 21:28:31,533 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 21:28:31,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 21:28:31,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 21:28:31,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 21:28:31,540 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 21:28:31,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 09:28:31" (1/1) ... [2019-01-14 21:28:31,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a621260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:31, skipping insertion in model container [2019-01-14 21:28:31,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 09:28:31" (1/1) ... [2019-01-14 21:28:31,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 21:28:31,577 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 21:28:31,773 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 21:28:31,787 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 21:28:31,817 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 21:28:31,842 INFO L195 MainTranslator]: Completed translation [2019-01-14 21:28:31,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:31 WrapperNode [2019-01-14 21:28:31,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 21:28:31,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 21:28:31,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 21:28:31,845 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 21:28:31,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:31" (1/1) ... [2019-01-14 21:28:31,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:31" (1/1) ... [2019-01-14 21:28:31,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 21:28:31,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 21:28:31,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 21:28:31,896 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 21:28:31,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:31" (1/1) ... [2019-01-14 21:28:31,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:31" (1/1) ... [2019-01-14 21:28:31,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:31" (1/1) ... [2019-01-14 21:28:31,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:31" (1/1) ... [2019-01-14 21:28:31,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:31" (1/1) ... [2019-01-14 21:28:31,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:31" (1/1) ... [2019-01-14 21:28:31,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:31" (1/1) ... [2019-01-14 21:28:31,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 21:28:31,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 21:28:31,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 21:28:31,928 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 21:28:31,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 21:28:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 21:28:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-14 21:28:32,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 21:28:32,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 21:28:32,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 21:28:32,590 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 21:28:32,591 INFO L286 CfgBuilder]: Removed 11 assue(true) statements. [2019-01-14 21:28:32,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:28:32 BoogieIcfgContainer [2019-01-14 21:28:32,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 21:28:32,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 21:28:32,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 21:28:32,596 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 21:28:32,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 09:28:31" (1/3) ... [2019-01-14 21:28:32,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c52bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 09:28:32, skipping insertion in model container [2019-01-14 21:28:32,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 09:28:31" (2/3) ... [2019-01-14 21:28:32,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c52bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 09:28:32, skipping insertion in model container [2019-01-14 21:28:32,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:28:32" (3/3) ... [2019-01-14 21:28:32,599 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrncmp_false-no-overflow.c [2019-01-14 21:28:32,609 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 21:28:32,617 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-01-14 21:28:32,634 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-01-14 21:28:32,666 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 21:28:32,667 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 21:28:32,667 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 21:28:32,667 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 21:28:32,668 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 21:28:32,668 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 21:28:32,668 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 21:28:32,668 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 21:28:32,668 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 21:28:32,684 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-01-14 21:28:32,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 21:28:32,691 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:28:32,691 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 21:28:32,694 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:28:32,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:28:32,700 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2019-01-14 21:28:32,701 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:28:32,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:28:32,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:32,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:28:32,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:28:32,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:28:32,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:28:32,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 21:28:32,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 21:28:32,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 21:28:32,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:28:32,855 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 3 states. [2019-01-14 21:28:33,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:28:33,110 INFO L93 Difference]: Finished difference Result 77 states and 95 transitions. [2019-01-14 21:28:33,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 21:28:33,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-14 21:28:33,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:28:33,124 INFO L225 Difference]: With dead ends: 77 [2019-01-14 21:28:33,124 INFO L226 Difference]: Without dead ends: 52 [2019-01-14 21:28:33,127 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 [2019-01-14 21:28:33,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-01-14 21:28:33,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 38. [2019-01-14 21:28:33,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-01-14 21:28:33,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2019-01-14 21:28:33,170 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 4 [2019-01-14 21:28:33,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:28:33,171 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2019-01-14 21:28:33,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 21:28:33,171 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2019-01-14 21:28:33,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-14 21:28:33,171 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:28:33,172 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-14 21:28:33,173 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:28:33,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:28:33,174 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-01-14 21:28:33,174 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:28:33,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:28:33,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:33,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:28:33,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:28:33,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:28:33,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:28:33,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 21:28:33,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 21:28:33,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 21:28:33,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:28:33,205 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 3 states. [2019-01-14 21:28:33,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:28:33,378 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2019-01-14 21:28:33,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 21:28:33,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-14 21:28:33,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:28:33,380 INFO L225 Difference]: With dead ends: 38 [2019-01-14 21:28:33,380 INFO L226 Difference]: Without dead ends: 34 [2019-01-14 21:28:33,381 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 [2019-01-14 21:28:33,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-01-14 21:28:33,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2019-01-14 21:28:33,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-01-14 21:28:33,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2019-01-14 21:28:33,387 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 4 [2019-01-14 21:28:33,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:28:33,388 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2019-01-14 21:28:33,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 21:28:33,388 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-01-14 21:28:33,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-14 21:28:33,388 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:28:33,389 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-14 21:28:33,390 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:28:33,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:28:33,391 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2019-01-14 21:28:33,391 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:28:33,391 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:28:33,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:33,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:28:33,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:28:33,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:28:33,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:28:33,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 21:28:33,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 21:28:33,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 21:28:33,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 21:28:33,439 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 3 states. [2019-01-14 21:28:33,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:28:33,517 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-01-14 21:28:33,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 21:28:33,518 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-14 21:28:33,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:28:33,519 INFO L225 Difference]: With dead ends: 28 [2019-01-14 21:28:33,519 INFO L226 Difference]: Without dead ends: 24 [2019-01-14 21:28:33,519 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 [2019-01-14 21:28:33,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-01-14 21:28:33,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-01-14 21:28:33,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-01-14 21:28:33,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-01-14 21:28:33,523 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 5 [2019-01-14 21:28:33,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:28:33,524 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-01-14 21:28:33,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 21:28:33,524 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-01-14 21:28:33,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-01-14 21:28:33,525 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:28:33,525 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 21:28:33,526 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:28:33,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:28:33,526 INFO L82 PathProgramCache]: Analyzing trace with hash -442003725, now seen corresponding path program 1 times [2019-01-14 21:28:33,526 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:28:33,526 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:28:33,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:33,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:28:33,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 21:28:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 21:28:33,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 21:28:33,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 21:28:33,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 21:28:33,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 21:28:33,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 21:28:33,648 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 4 states. [2019-01-14 21:28:33,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 21:28:33,697 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2019-01-14 21:28:33,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 21:28:33,697 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-01-14 21:28:33,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 21:28:33,698 INFO L225 Difference]: With dead ends: 24 [2019-01-14 21:28:33,698 INFO L226 Difference]: Without dead ends: 23 [2019-01-14 21:28:33,699 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 [2019-01-14 21:28:33,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-01-14 21:28:33,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-01-14 21:28:33,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-01-14 21:28:33,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-01-14 21:28:33,703 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 17 [2019-01-14 21:28:33,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 21:28:33,704 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-01-14 21:28:33,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 21:28:33,704 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-01-14 21:28:33,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-01-14 21:28:33,705 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 21:28:33,705 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 21:28:33,705 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 21:28:33,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 21:28:33,706 INFO L82 PathProgramCache]: Analyzing trace with hash -817213509, now seen corresponding path program 1 times [2019-01-14 21:28:33,706 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 21:28:33,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 21:28:33,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:33,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 21:28:33,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 21:28:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 21:28:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 21:28:33,815 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 21:28:33,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 09:28:33 BoogieIcfgContainer [2019-01-14 21:28:33,850 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 21:28:33,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 21:28:33,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 21:28:33,850 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 21:28:33,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 09:28:32" (3/4) ... [2019-01-14 21:28:33,853 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 21:28:33,903 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 21:28:33,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 21:28:33,904 INFO L168 Benchmark]: Toolchain (without parser) took 2369.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -104.0 MB). Peak memory consumption was 43.8 MB. Max. memory is 11.5 GB. [2019-01-14 21:28:33,905 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:28:33,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.05 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 21:28:33,906 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.36 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-14 21:28:33,907 INFO L168 Benchmark]: Boogie Preprocessor took 31.62 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:28:33,908 INFO L168 Benchmark]: RCFGBuilder took 663.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-01-14 21:28:33,909 INFO L168 Benchmark]: TraceAbstraction took 1256.93 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: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 11.5 GB. [2019-01-14 21:28:33,910 INFO L168 Benchmark]: Witness Printer took 52.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 21:28:33,916 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 307.05 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 52.36 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.62 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 663.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1256.93 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: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 11.5 GB. * Witness Printer took 52.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 33]: integer overflow possible integer overflow possible We found a FailurePath: [L13] int length = __VERIFIER_nondet_int(); [L14] COND TRUE length < 1 [L15] length = 1 [L17] EXPR length * sizeof(char) [L17] char* nondetString = (char*) malloc(length * sizeof(char)); [L18] EXPR length-1 [L18] nondetString[length-1] = '\0' [L19] return nondetString; [L13] int length = __VERIFIER_nondet_int(); [L14] COND TRUE length < 1 [L15] length = 1 [L17] EXPR length * sizeof(char) [L17] char* nondetString = (char*) malloc(length * sizeof(char)); [L18] EXPR length-1 [L18] nondetString[length-1] = '\0' [L19] return nondetString; [L28] unsigned char uc1, uc2; [L30] COND FALSE !(n == 0) [L33] n-- - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 10 error locations. UNSAFE Result, 1.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 91 SDtfs, 93 SDslu, 59 SDs, 0 SdLazy, 63 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...