./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Addition02WithOverflowBug.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 906a4fb5 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/recursive/Addition02WithOverflowBug.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 287218d656262a35fea12dfac61f3b9a1cd68325 ....................................................................................................................................................................................................................................... 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 0.1.25-906a4fb [2020-10-19 18:34:33,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:34:33,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:34:33,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:34:33,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:34:33,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:34:33,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:34:33,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:34:33,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:34:33,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:34:33,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:34:33,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:34:33,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:34:33,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:34:33,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:34:33,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:34:33,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:34:33,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:34:33,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:34:33,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:34:33,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:34:33,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:34:33,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:34:33,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:34:33,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:34:33,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:34:33,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:34:33,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:34:33,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:34:33,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:34:33,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:34:33,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:34:33,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:34:33,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:34:33,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:34:33,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:34:33,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:34:33,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:34:33,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:34:33,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:34:33,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:34:33,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-10-19 18:34:33,173 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:34:33,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:34:33,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:34:33,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:34:33,178 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:34:33,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:34:33,178 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:34:33,179 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:34:33,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:34:33,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:34:33,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:34:33,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:34:33,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:34:33,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:34:33,182 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:34:33,182 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:34:33,182 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:34:33,183 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:34:33,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:34:33,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:34:33,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:34:33,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:34:33,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:34:33,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:34:33,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:34:33,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:34:33,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:34:33,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:34:33,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:34:33,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:34:33,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:34:33,187 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 287218d656262a35fea12dfac61f3b9a1cd68325 [2020-10-19 18:34:33,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:34:33,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:34:33,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:34:33,549 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:34:33,550 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:34:33,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition02WithOverflowBug.c [2020-10-19 18:34:33,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e40b31c88/2871d34a15714888867eb7712ad1f8e1/FLAG0727c600e [2020-10-19 18:34:34,026 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:34:34,027 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02WithOverflowBug.c [2020-10-19 18:34:34,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e40b31c88/2871d34a15714888867eb7712ad1f8e1/FLAG0727c600e [2020-10-19 18:34:34,386 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e40b31c88/2871d34a15714888867eb7712ad1f8e1 [2020-10-19 18:34:34,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:34:34,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:34:34,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:34:34,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:34:34,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:34:34,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:34:34" (1/1) ... [2020-10-19 18:34:34,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@123731d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:34:34, skipping insertion in model container [2020-10-19 18:34:34,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:34:34" (1/1) ... [2020-10-19 18:34:34,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:34:34,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:34:34,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:34:34,614 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:34:34,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:34:34,645 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:34:34,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:34:34 WrapperNode [2020-10-19 18:34:34,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:34:34,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:34:34,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:34:34,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:34:34,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:34:34" (1/1) ... [2020-10-19 18:34:34,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:34:34" (1/1) ... [2020-10-19 18:34:34,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:34:34,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:34:34,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:34:34,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:34:34,752 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:34:34" (1/1) ... [2020-10-19 18:34:34,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:34:34" (1/1) ... [2020-10-19 18:34:34,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:34:34" (1/1) ... [2020-10-19 18:34:34,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:34:34" (1/1) ... [2020-10-19 18:34:34,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:34:34" (1/1) ... [2020-10-19 18:34:34,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:34:34" (1/1) ... [2020-10-19 18:34:34,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:34:34" (1/1) ... [2020-10-19 18:34:34,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:34:34,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:34:34,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:34:34,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:34:34,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:34:34" (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 [2020-10-19 18:34:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:34:34,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:34:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:34:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:34:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-10-19 18:34:34,822 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-10-19 18:34:35,133 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:34:35,134 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-19 18:34:35,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:34:35 BoogieIcfgContainer [2020-10-19 18:34:35,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:34:35,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:34:35,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:34:35,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:34:35,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:34:34" (1/3) ... [2020-10-19 18:34:35,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f509369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:34:35, skipping insertion in model container [2020-10-19 18:34:35,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:34:34" (2/3) ... [2020-10-19 18:34:35,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f509369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:34:35, skipping insertion in model container [2020-10-19 18:34:35,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:34:35" (3/3) ... [2020-10-19 18:34:35,145 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition02WithOverflowBug.c [2020-10-19 18:34:35,157 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:34:35,164 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-10-19 18:34:35,178 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-10-19 18:34:35,203 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:34:35,203 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:34:35,203 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:34:35,203 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:34:35,203 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:34:35,203 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:34:35,204 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:34:35,204 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:34:35,224 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-10-19 18:34:35,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:34:35,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:34:35,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:34:35,231 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:34:35,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:34:35,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1851512825, now seen corresponding path program 1 times [2020-10-19 18:34:35,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:34:35,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164132488] [2020-10-19 18:34:35,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:34:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:34:35,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:34:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:34:35,393 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:34:35,418 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:34:35,418 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:34:35,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:34:35,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:34:35 BoogieIcfgContainer [2020-10-19 18:34:35,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:34:35,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:34:35,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:34:35,446 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:34:35,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:34:35" (3/4) ... [2020-10-19 18:34:35,448 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 18:34:35,493 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:34:35,494 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:34:35,498 INFO L168 Benchmark]: Toolchain (without parser) took 1104.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 958.6 MB in the beginning and 1.1 GB in the end (delta: -129.7 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:34:35,499 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:34:35,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.23 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:34:35,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -187.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:34:35,502 INFO L168 Benchmark]: Boogie Preprocessor took 20.63 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:34:35,503 INFO L168 Benchmark]: RCFGBuilder took 371.71 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:34:35,504 INFO L168 Benchmark]: TraceAbstraction took 307.74 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:34:35,505 INFO L168 Benchmark]: Witness Printer took 48.42 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:34:35,512 INFO L339 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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 249.23 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 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 96.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -187.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.63 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 371.71 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 307.74 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Witness Printer took 48.42 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: 6.6 MB). Peak memory consumption was 6.6 MB. 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: [L29] int m = __VERIFIER_nondet_int(); [L30] int n = __VERIFIER_nondet_int(); [L31] CALL addition(m,n) VAL [\old(m)=2147483647, \old(n)=1] [L16] COND FALSE !(n == 0) VAL [\old(m)=2147483647, \old(n)=1, m=2147483647, n=1] [L19] COND TRUE n > 0 VAL [\old(m)=2147483647, \old(n)=1, m=2147483647, n=1] [L20] m+1 VAL [\old(m)=2147483647, \old(n)=1, m=2147483647, n=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...