./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c 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-lit/BradleyMannaSipma-ICALP2005-Fig1.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 d50c9e2c4d6ea0adce599ea0d63e463f6e274ffe .............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:23:38,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:23:38,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:23:38,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:23:38,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:23:38,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:23:38,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:23:38,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:23:38,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:23:38,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:23:38,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:23:38,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:23:38,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:23:38,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:23:38,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:23:38,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:23:38,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:23:38,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:23:38,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:23:38,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:23:38,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:23:38,085 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:23:38,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:23:38,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:23:38,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:23:38,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:23:38,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:23:38,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:23:38,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:23:38,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:23:38,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:23:38,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:23:38,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:23:38,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:23:38,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:23:38,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:23:38,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:23:38,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:23:38,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:23:38,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:23:38,103 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:23:38,105 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 20:23:38,133 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:23:38,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:23:38,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:23:38,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:23:38,137 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:23:38,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:23:38,137 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:23:38,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:23:38,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:23:38,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 20:23:38,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:23:38,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 20:23:38,140 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 20:23:38,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:23:38,141 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:23:38,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 20:23:38,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:23:38,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:23:38,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:23:38,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:23:38,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:23:38,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:23:38,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:23:38,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 20:23:38,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:23:38,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:23:38,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 20:23:38,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:23:38,146 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 -> d50c9e2c4d6ea0adce599ea0d63e463f6e274ffe [2019-11-28 20:23:38,555 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:23:38,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:23:38,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:23:38,574 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:23:38,575 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:23:38,575 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c [2019-11-28 20:23:38,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eff49ba4d/6430fc85498e4f0fa3aa02758a3f9dc6/FLAGd91103cff [2019-11-28 20:23:39,110 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:23:39,111 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-ICALP2005-Fig1.c [2019-11-28 20:23:39,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eff49ba4d/6430fc85498e4f0fa3aa02758a3f9dc6/FLAGd91103cff [2019-11-28 20:23:39,520 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eff49ba4d/6430fc85498e4f0fa3aa02758a3f9dc6 [2019-11-28 20:23:39,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:23:39,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:23:39,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:23:39,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:23:39,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:23:39,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:23:39" (1/1) ... [2019-11-28 20:23:39,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553315ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:39, skipping insertion in model container [2019-11-28 20:23:39,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:23:39" (1/1) ... [2019-11-28 20:23:39,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:23:39,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:23:39,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:23:39,814 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:23:39,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:23:39,857 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:23:39,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:39 WrapperNode [2019-11-28 20:23:39,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:23:39,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:23:39,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:23:39,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:23:39,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:39" (1/1) ... [2019-11-28 20:23:39,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:39" (1/1) ... [2019-11-28 20:23:39,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:23:39,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:23:39,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:23:39,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:23:40,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:39" (1/1) ... [2019-11-28 20:23:40,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:39" (1/1) ... [2019-11-28 20:23:40,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:39" (1/1) ... [2019-11-28 20:23:40,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:39" (1/1) ... [2019-11-28 20:23:40,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:39" (1/1) ... [2019-11-28 20:23:40,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:39" (1/1) ... [2019-11-28 20:23:40,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:39" (1/1) ... [2019-11-28 20:23:40,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:23:40,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:23:40,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:23:40,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:23:40,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:39" (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 20:23:40,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:23:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:23:40,308 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:23:40,308 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 20:23:40,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:23:40 BoogieIcfgContainer [2019-11-28 20:23:40,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:23:40,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:23:40,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:23:40,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:23:40,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:23:39" (1/3) ... [2019-11-28 20:23:40,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f7723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:23:40, skipping insertion in model container [2019-11-28 20:23:40,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:39" (2/3) ... [2019-11-28 20:23:40,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f7723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:23:40, skipping insertion in model container [2019-11-28 20:23:40,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:23:40" (3/3) ... [2019-11-28 20:23:40,317 INFO L109 eAbstractionObserver]: Analyzing ICFG BradleyMannaSipma-ICALP2005-Fig1.c [2019-11-28 20:23:40,326 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:23:40,333 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-11-28 20:23:40,344 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-11-28 20:23:40,375 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:23:40,376 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 20:23:40,376 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:23:40,376 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:23:40,376 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:23:40,376 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:23:40,376 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:23:40,377 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:23:40,395 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-11-28 20:23:40,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-28 20:23:40,401 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:23:40,403 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-28 20:23:40,404 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:23:40,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:23:40,412 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-28 20:23:40,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:23:40,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486364918] [2019-11-28 20:23:40,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:23:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:23:40,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:23:40,562 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486364918] [2019-11-28 20:23:40,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:23:40,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:23:40,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512245633] [2019-11-28 20:23:40,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 20:23:40,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:23:40,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:23:40,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:23:40,589 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2019-11-28 20:23:40,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:23:40,731 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2019-11-28 20:23:40,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:23:40,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-28 20:23:40,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 20:23:40,745 INFO L225 Difference]: With dead ends: 51 [2019-11-28 20:23:40,746 INFO L226 Difference]: Without dead ends: 38 [2019-11-28 20:23:40,749 INFO L630 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 [2019-11-28 20:23:40,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-11-28 20:23:40,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 24. [2019-11-28 20:23:40,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 20:23:40,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2019-11-28 20:23:40,791 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 3 [2019-11-28 20:23:40,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 20:23:40,791 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2019-11-28 20:23:40,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 20:23:40,792 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-11-28 20:23:40,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 20:23:40,792 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:23:40,792 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 20:23:40,793 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:23:40,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:23:40,794 INFO L82 PathProgramCache]: Analyzing trace with hash 957349, now seen corresponding path program 1 times [2019-11-28 20:23:40,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:23:40,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905331770] [2019-11-28 20:23:40,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:23:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:23:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:23:40,854 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:23:40,854 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:23:40,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:23:40 BoogieIcfgContainer [2019-11-28 20:23:40,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:23:40,874 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:23:40,874 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:23:40,875 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:23:40,875 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:23:40" (3/4) ... [2019-11-28 20:23:40,878 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:23:40,915 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:23:40,915 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:23:40,918 INFO L168 Benchmark]: Toolchain (without parser) took 1391.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -134.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2019-11-28 20:23:40,919 INFO L168 Benchmark]: CDTParser took 0.25 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 20:23:40,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.26 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 948.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:23:40,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 136.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 948.3 MB in the beginning and 1.2 GB in the end (delta: -202.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:23:40,921 INFO L168 Benchmark]: Boogie Preprocessor took 36.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:23:40,922 INFO L168 Benchmark]: RCFGBuilder took 275.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2019-11-28 20:23:40,923 INFO L168 Benchmark]: TraceAbstraction took 563.57 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:23:40,923 INFO L168 Benchmark]: Witness Printer took 40.97 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 20:23:40,928 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 330.26 ms. Allocated memory is still 1.0 GB. Free memory was 959.0 MB in the beginning and 948.3 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 136.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 948.3 MB in the beginning and 1.2 GB in the end (delta: -202.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 275.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 563.57 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Witness Printer took 40.97 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: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x, y, N; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] N = __VERIFIER_nondet_int() [L21] COND TRUE N < 536870912 && x < 536870912 && y < 536870912 && x >= -1073741824 [L22] x + y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 10 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 22 SDslu, 5 SDs, 0 SdLazy, 39 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...