./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/2Nested-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/termination-crafted/2Nested-2.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 4143c9f7038c4b8b5babb8095ecf96c00e7adcf9 ....................................................................................................................................................................................................................... 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 0.1.24-30f4e4a [2019-11-28 02:49:47,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:49:47,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:49:47,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:49:47,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:49:47,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:49:47,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:49:47,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:49:47,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:49:47,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:49:47,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:49:47,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:49:47,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:49:47,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:49:47,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:49:47,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:49:47,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:49:47,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:49:47,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:49:47,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:49:47,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:49:47,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:49:47,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:49:47,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:49:47,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:49:47,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:49:47,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:49:47,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:49:47,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:49:47,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:49:47,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:49:47,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:49:47,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:49:47,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:49:47,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:49:47,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:49:47,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:49:47,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:49:47,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:49:47,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:49:47,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:49:47,845 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 02:49:47,860 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:49:47,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:49:47,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:49:47,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:49:47,862 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:49:47,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:49:47,863 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:49:47,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:49:47,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:49:47,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 02:49:47,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:49:47,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 02:49:47,867 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 02:49:47,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:49:47,867 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:49:47,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 02:49:47,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:49:47,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:49:47,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:49:47,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:49:47,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:49:47,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:49:47,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:49:47,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 02:49:47,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:49:47,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:49:47,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 02:49:47,873 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /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 -> 4143c9f7038c4b8b5babb8095ecf96c00e7adcf9 [2019-11-28 02:49:48,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:49:48,207 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:49:48,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:49:48,212 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:49:48,213 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:49:48,213 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/2Nested-2.c [2019-11-28 02:49:48,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0824f6ea1/a1db82f19c1044beae6a4dd31c6e0678/FLAGb5d6c3881 [2019-11-28 02:49:48,754 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:49:48,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/2Nested-2.c [2019-11-28 02:49:48,760 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0824f6ea1/a1db82f19c1044beae6a4dd31c6e0678/FLAGb5d6c3881 [2019-11-28 02:49:49,155 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0824f6ea1/a1db82f19c1044beae6a4dd31c6e0678 [2019-11-28 02:49:49,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:49:49,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:49:49,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:49:49,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:49:49,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:49:49,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:49:49" (1/1) ... [2019-11-28 02:49:49,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6620ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49, skipping insertion in model container [2019-11-28 02:49:49,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:49:49" (1/1) ... [2019-11-28 02:49:49,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:49:49,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:49:49,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:49:49,400 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:49:49,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:49:49,433 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:49:49,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49 WrapperNode [2019-11-28 02:49:49,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:49:49,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:49:49,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:49:49,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:49:49,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49" (1/1) ... [2019-11-28 02:49:49,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49" (1/1) ... [2019-11-28 02:49:49,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:49:49,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:49:49,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:49:49,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:49:49,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49" (1/1) ... [2019-11-28 02:49:49,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49" (1/1) ... [2019-11-28 02:49:49,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49" (1/1) ... [2019-11-28 02:49:49,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49" (1/1) ... [2019-11-28 02:49:49,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49" (1/1) ... [2019-11-28 02:49:49,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49" (1/1) ... [2019-11-28 02:49:49,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49" (1/1) ... [2019-11-28 02:49:49,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:49:49,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:49:49,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:49:49,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:49:49,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49" (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 [2019-11-28 02:49:49,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:49:49,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:49:49,749 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:49:49,749 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:49:49,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:49:49 BoogieIcfgContainer [2019-11-28 02:49:49,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:49:49,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:49:49,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:49:49,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:49:49,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:49:49" (1/3) ... [2019-11-28 02:49:49,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b0e711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:49:49, skipping insertion in model container [2019-11-28 02:49:49,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:49:49" (2/3) ... [2019-11-28 02:49:49,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b0e711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:49:49, skipping insertion in model container [2019-11-28 02:49:49,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:49:49" (3/3) ... [2019-11-28 02:49:49,758 INFO L109 eAbstractionObserver]: Analyzing ICFG 2Nested-2.c [2019-11-28 02:49:49,765 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:49:49,771 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-28 02:49:49,781 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 02:49:49,807 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:49:49,807 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 02:49:49,807 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:49:49,808 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:49:49,808 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:49:49,808 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:49:49,808 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:49:49,809 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:49:49,824 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-28 02:49:49,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-28 02:49:49,828 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:49:49,829 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-28 02:49:49,830 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:49:49,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:49:49,836 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-28 02:49:49,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:49:49,843 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413919620] [2019-11-28 02:49:49,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:49:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:49:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:49:49,951 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:49:49,952 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:49:49,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:49:49 BoogieIcfgContainer [2019-11-28 02:49:49,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:49:49,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:49:49,968 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:49:49,968 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:49:49,969 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:49:49" (3/4) ... [2019-11-28 02:49:49,971 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 02:49:50,013 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:49:50,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:49:50,016 INFO L168 Benchmark]: Toolchain (without parser) took 854.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -144.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:49:50,017 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:49:50,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.38 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:50,018 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.46 ms. Allocated memory is still 1.0 GB. Free memory is still 945.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:49:50,019 INFO L168 Benchmark]: Boogie Preprocessor took 72.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -185.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:50,020 INFO L168 Benchmark]: RCFGBuilder took 214.03 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:50,021 INFO L168 Benchmark]: TraceAbstraction took 215.41 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:49:50,022 INFO L168 Benchmark]: Witness Printer took 46.27 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. [2019-11-28 02:49:50,026 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 272.38 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 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 28.46 ms. Allocated memory is still 1.0 GB. Free memory is still 945.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -185.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 214.03 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 215.41 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Witness Printer took 46.27 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: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int x, y; [L17] x = __VERIFIER_nondet_int() [L18] y = __VERIFIER_nondet_int() [L19] COND TRUE x >= 0 [L20] x + y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...