./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-2.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/RecursiveMultiplication-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 03c07d21e8c83715935a492e9413e7409ba63fe0 ............................................................................................................................................................................................................................. 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 20:22:54,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:22:54,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:22:54,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:22:54,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:22:54,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:22:54,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:22:54,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:22:54,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:22:54,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:22:54,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:22:54,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:22:54,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:22:54,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:22:54,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:22:54,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:22:54,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:22:54,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:22:54,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:22:54,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:22:54,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:22:54,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:22:54,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:22:54,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:22:54,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:22:54,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:22:54,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:22:54,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:22:54,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:22:54,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:22:54,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:22:54,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:22:54,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:22:54,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:22:54,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:22:54,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:22:54,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:22:54,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:22:54,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:22:54,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:22:54,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:22:54,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 20:22:54,205 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:22:54,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:22:54,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:22:54,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:22:54,208 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:22:54,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:22:54,208 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:22:54,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:22:54,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:22:54,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 20:22:54,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:22:54,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 20:22:54,210 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 20:22:54,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:22:54,210 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:22:54,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 20:22:54,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:22:54,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:22:54,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:22:54,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:22:54,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:22:54,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:22:54,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:22:54,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 20:22:54,213 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:22:54,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:22:54,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 20:22:54,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:22:54,214 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 -> 03c07d21e8c83715935a492e9413e7409ba63fe0 [2019-11-28 20:22:54,524 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:22:54,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:22:54,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:22:54,542 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:22:54,543 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:22:54,544 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-2.c [2019-11-28 20:22:54,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dccff43c5/1916faef8e3847ef8477aa9121c0db5f/FLAGdd4793b30 [2019-11-28 20:22:55,072 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:22:55,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/RecursiveMultiplication-2.c [2019-11-28 20:22:55,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dccff43c5/1916faef8e3847ef8477aa9121c0db5f/FLAGdd4793b30 [2019-11-28 20:22:55,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dccff43c5/1916faef8e3847ef8477aa9121c0db5f [2019-11-28 20:22:55,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:22:55,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:22:55,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:22:55,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:22:55,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:22:55,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:22:55" (1/1) ... [2019-11-28 20:22:55,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1844f808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:55, skipping insertion in model container [2019-11-28 20:22:55,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:22:55" (1/1) ... [2019-11-28 20:22:55,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:22:55,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:22:55,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:22:55,736 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:22:55,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:22:55,770 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:22:55,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:55 WrapperNode [2019-11-28 20:22:55,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:22:55,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:22:55,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:22:55,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:22:55,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:55" (1/1) ... [2019-11-28 20:22:55,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:55" (1/1) ... [2019-11-28 20:22:55,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:22:55,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:22:55,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:22:55,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:22:55,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:55" (1/1) ... [2019-11-28 20:22:55,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:55" (1/1) ... [2019-11-28 20:22:55,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:55" (1/1) ... [2019-11-28 20:22:55,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:55" (1/1) ... [2019-11-28 20:22:55,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:55" (1/1) ... [2019-11-28 20:22:55,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:55" (1/1) ... [2019-11-28 20:22:55,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:55" (1/1) ... [2019-11-28 20:22:55,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:22:55,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:22:55,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:22:55,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:22:55,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:55" (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 20:22:55,957 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2019-11-28 20:22:55,958 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2019-11-28 20:22:55,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:22:55,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:22:56,168 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:22:56,169 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 20:22:56,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:22:56 BoogieIcfgContainer [2019-11-28 20:22:56,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:22:56,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:22:56,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:22:56,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:22:56,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:22:55" (1/3) ... [2019-11-28 20:22:56,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7d7f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:22:56, skipping insertion in model container [2019-11-28 20:22:56,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:22:55" (2/3) ... [2019-11-28 20:22:56,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f7d7f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:22:56, skipping insertion in model container [2019-11-28 20:22:56,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:22:56" (3/3) ... [2019-11-28 20:22:56,185 INFO L109 eAbstractionObserver]: Analyzing ICFG RecursiveMultiplication-2.c [2019-11-28 20:22:56,198 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:22:56,219 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-28 20:22:56,244 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-28 20:22:56,274 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:22:56,274 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 20:22:56,275 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:22:56,275 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:22:56,275 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:22:56,275 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:22:56,275 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:22:56,276 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:22:56,293 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-11-28 20:22:56,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 20:22:56,296 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:22:56,297 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 20:22:56,298 INFO L410 AbstractCegarLoop]: === Iteration 1 === [multErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, multErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, multErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, multErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, multErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 20:22:56,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:22:56,304 INFO L82 PathProgramCache]: Analyzing trace with hash 58479830, now seen corresponding path program 1 times [2019-11-28 20:22:56,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:22:56,311 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429960785] [2019-11-28 20:22:56,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:22:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:22:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:22:56,429 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:22:56,430 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:22:56,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:22:56 BoogieIcfgContainer [2019-11-28 20:22:56,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:22:56,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:22:56,454 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:22:56,454 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:22:56,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:22:56" (3/4) ... [2019-11-28 20:22:56,457 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 20:22:56,498 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:22:56,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:22:56,501 INFO L168 Benchmark]: Toolchain (without parser) took 1021.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -120.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:22:56,502 INFO L168 Benchmark]: CDTParser took 0.26 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. [2019-11-28 20:22:56,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.70 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 945.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:22:56,504 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:22:56,504 INFO L168 Benchmark]: Boogie Preprocessor took 26.13 ms. Allocated memory is still 1.1 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. [2019-11-28 20:22:56,505 INFO L168 Benchmark]: RCFGBuilder took 277.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:22:56,506 INFO L168 Benchmark]: TraceAbstraction took 281.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:22:56,507 INFO L168 Benchmark]: Witness Printer took 44.58 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:22:56,511 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 291.70 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 945.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.13 ms. Allocated memory is still 1.1 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 277.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 281.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 44.58 ms. Allocated memory is still 1.1 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: 14]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int m = __VERIFIER_nondet_int(); [L24] int n = __VERIFIER_nondet_int(); [L25] CALL mult(m, n) VAL [\old(m)=-2147483648, \old(n)=0] [L13] COND TRUE m < 0 VAL [\old(m)=-2147483648, \old(n)=0, m=-2147483648, n=0] [L14] -m VAL [\old(m)=-2147483648, \old(n)=0, m=-2147483648, n=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 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=31occurred 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, 5 NumberOfCodeBlocks, 5 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...