./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/RecursiveNonterminating-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f6fb2bb1 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/RecursiveNonterminating-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 5c710c9332055b5f06164a07be44be6850b8917f ...................................................................................................................................................................................................................... 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-f6fb2bb [2019-11-19 19:52:56,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 19:52:56,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 19:52:56,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 19:52:56,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 19:52:56,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 19:52:56,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 19:52:56,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 19:52:56,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 19:52:56,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 19:52:56,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 19:52:56,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 19:52:56,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 19:52:56,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 19:52:56,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 19:52:56,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 19:52:56,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 19:52:56,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 19:52:56,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 19:52:56,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 19:52:56,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 19:52:56,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 19:52:56,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 19:52:56,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 19:52:56,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 19:52:56,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 19:52:56,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 19:52:56,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 19:52:56,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 19:52:56,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 19:52:56,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 19:52:56,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 19:52:56,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 19:52:56,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 19:52:56,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 19:52:56,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 19:52:56,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 19:52:56,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 19:52:56,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 19:52:56,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 19:52:56,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 19:52:56,310 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-19 19:52:56,334 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 19:52:56,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 19:52:56,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 19:52:56,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 19:52:56,340 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 19:52:56,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 19:52:56,340 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 19:52:56,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 19:52:56,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 19:52:56,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 19:52:56,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 19:52:56,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 19:52:56,343 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-19 19:52:56,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 19:52:56,344 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 19:52:56,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 19:52:56,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 19:52:56,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 19:52:56,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 19:52:56,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 19:52:56,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 19:52:56,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 19:52:56,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 19:52:56,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 19:52:56,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 19:52:56,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 19:52:56,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 19:52:56,348 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 -> 5c710c9332055b5f06164a07be44be6850b8917f [2019-11-19 19:52:56,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 19:52:56,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 19:52:56,652 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 19:52:56,653 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 19:52:56,654 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 19:52:56,655 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/RecursiveNonterminating-2.c [2019-11-19 19:52:56,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a270ca4c4/4a410d5019944207827e544ae5bfda61/FLAG181c01528 [2019-11-19 19:52:57,168 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 19:52:57,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/RecursiveNonterminating-2.c [2019-11-19 19:52:57,176 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a270ca4c4/4a410d5019944207827e544ae5bfda61/FLAG181c01528 [2019-11-19 19:52:57,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a270ca4c4/4a410d5019944207827e544ae5bfda61 [2019-11-19 19:52:57,598 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 19:52:57,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 19:52:57,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 19:52:57,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 19:52:57,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 19:52:57,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:52:57" (1/1) ... [2019-11-19 19:52:57,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@371ed624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:57, skipping insertion in model container [2019-11-19 19:52:57,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:52:57" (1/1) ... [2019-11-19 19:52:57,615 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 19:52:57,630 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 19:52:57,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:52:57,783 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 19:52:57,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:52:57,813 INFO L192 MainTranslator]: Completed translation [2019-11-19 19:52:57,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:57 WrapperNode [2019-11-19 19:52:57,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 19:52:57,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 19:52:57,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 19:52:57,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 19:52:57,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:57" (1/1) ... [2019-11-19 19:52:57,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:57" (1/1) ... [2019-11-19 19:52:57,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 19:52:57,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 19:52:57,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 19:52:57,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 19:52:57,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:57" (1/1) ... [2019-11-19 19:52:57,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:57" (1/1) ... [2019-11-19 19:52:57,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:57" (1/1) ... [2019-11-19 19:52:57,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:57" (1/1) ... [2019-11-19 19:52:57,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:57" (1/1) ... [2019-11-19 19:52:57,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:57" (1/1) ... [2019-11-19 19:52:57,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:57" (1/1) ... [2019-11-19 19:52:57,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 19:52:57,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 19:52:57,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 19:52:57,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 19:52:57,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:57" (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 [2019-11-19 19:52:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2019-11-19 19:52:57,989 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2019-11-19 19:52:57,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 19:52:57,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 19:52:58,182 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 19:52:58,182 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-19 19:52:58,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:52:58 BoogieIcfgContainer [2019-11-19 19:52:58,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 19:52:58,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 19:52:58,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 19:52:58,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 19:52:58,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:52:57" (1/3) ... [2019-11-19 19:52:58,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e909ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:52:58, skipping insertion in model container [2019-11-19 19:52:58,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:57" (2/3) ... [2019-11-19 19:52:58,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e909ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:52:58, skipping insertion in model container [2019-11-19 19:52:58,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:52:58" (3/3) ... [2019-11-19 19:52:58,193 INFO L109 eAbstractionObserver]: Analyzing ICFG RecursiveNonterminating-2.c [2019-11-19 19:52:58,205 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 19:52:58,212 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-19 19:52:58,231 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-19 19:52:58,273 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 19:52:58,273 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 19:52:58,287 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 19:52:58,287 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 19:52:58,288 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 19:52:58,288 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 19:52:58,288 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 19:52:58,290 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 19:52:58,311 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2019-11-19 19:52:58,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-11-19 19:52:58,315 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:52:58,318 INFO L410 BasicCegarLoop]: trace histogram [1, 1] [2019-11-19 19:52:58,319 INFO L410 AbstractCegarLoop]: === Iteration 1 === [recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-19 19:52:58,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:52:58,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1666, now seen corresponding path program 1 times [2019-11-19 19:52:58,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:52:58,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553708876] [2019-11-19 19:52:58,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:52:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:52:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:52:58,442 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:52:58,442 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 19:52:58,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:52:58 BoogieIcfgContainer [2019-11-19 19:52:58,459 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 19:52:58,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 19:52:58,460 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 19:52:58,460 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 19:52:58,461 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:52:58" (3/4) ... [2019-11-19 19:52:58,466 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 19:52:58,503 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 19:52:58,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 19:52:58,507 INFO L168 Benchmark]: Toolchain (without parser) took 906.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -145.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:52:58,507 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:52:58,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.05 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:52:58,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -194.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-19 19:52:58,510 INFO L168 Benchmark]: Boogie Preprocessor took 15.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:52:58,511 INFO L168 Benchmark]: RCFGBuilder took 257.50 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-19 19:52:58,512 INFO L168 Benchmark]: TraceAbstraction took 274.23 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-19 19:52:58,514 INFO L168 Benchmark]: Witness Printer took 44.51 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. [2019-11-19 19:52:58,523 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 214.05 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 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 95.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -194.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 257.50 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 274.23 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 44.51 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: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L17] int n = __VERIFIER_nondet_int(); [L18] n + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 8 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=27occurred 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, 2 NumberOfCodeBlocks, 2 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...