./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/NoriSharma-FSE2013-Fig7.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 7660a5e2f9f2a21129eb39e58701014cfc465dc2 ................................................................................................................................................................................................................................ 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 0.1.25-9a8b2e8 [2020-10-20 06:25:34,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:25:34,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:25:34,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:25:34,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:25:34,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:25:34,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:25:34,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:25:34,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:25:34,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:25:34,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:25:34,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:25:34,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:25:34,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:25:34,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:25:34,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:25:34,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:25:34,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:25:34,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:25:34,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:25:34,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:25:34,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:25:34,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:25:34,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:25:34,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:25:34,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:25:34,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:25:34,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:25:34,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:25:34,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:25:34,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:25:34,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:25:34,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:25:34,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:25:34,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:25:34,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:25:34,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:25:34,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:25:34,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:25:34,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:25:34,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:25:34,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-20 06:25:34,794 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:25:34,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:25:34,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:25:34,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:25:34,796 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:25:34,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:25:34,796 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:25:34,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:25:34,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:25:34,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:25:34,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:25:34,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:25:34,803 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:25:34,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:25:34,803 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:25:34,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:25:34,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:25:34,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:25:34,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:25:34,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:25:34,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:25:34,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:25:34,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:25:34,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:25:34,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:25:34,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:25:34,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:25:34,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:25:34,805 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 -> 7660a5e2f9f2a21129eb39e58701014cfc465dc2 [2020-10-20 06:25:35,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:25:35,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:25:35,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:25:35,026 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:25:35,026 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:25:35,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2020-10-20 06:25:35,097 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3371d9cc7/7830c64ba0eb4d0fa1b5a5d45ff751fc/FLAG8f90e6b66 [2020-10-20 06:25:35,637 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:25:35,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2020-10-20 06:25:35,643 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3371d9cc7/7830c64ba0eb4d0fa1b5a5d45ff751fc/FLAG8f90e6b66 [2020-10-20 06:25:35,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3371d9cc7/7830c64ba0eb4d0fa1b5a5d45ff751fc [2020-10-20 06:25:35,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:25:35,929 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:25:35,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:25:35,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:25:35,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:25:35,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:25:35" (1/1) ... [2020-10-20 06:25:35,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21737582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:35, skipping insertion in model container [2020-10-20 06:25:35,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:25:35" (1/1) ... [2020-10-20 06:25:35,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:25:35,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:25:36,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:25:36,141 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:25:36,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:25:36,173 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:25:36,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:36 WrapperNode [2020-10-20 06:25:36,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:25:36,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:25:36,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:25:36,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:25:36,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:36" (1/1) ... [2020-10-20 06:25:36,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:36" (1/1) ... [2020-10-20 06:25:36,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:25:36,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:25:36,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:25:36,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:25:36,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:36" (1/1) ... [2020-10-20 06:25:36,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:36" (1/1) ... [2020-10-20 06:25:36,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:36" (1/1) ... [2020-10-20 06:25:36,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:36" (1/1) ... [2020-10-20 06:25:36,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:36" (1/1) ... [2020-10-20 06:25:36,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:36" (1/1) ... [2020-10-20 06:25:36,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:36" (1/1) ... [2020-10-20 06:25:36,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:25:36,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:25:36,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:25:36,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:25:36,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:36" (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 [2020-10-20 06:25:36,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:25:36,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:25:36,487 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:25:36,488 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:25:36,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:25:36 BoogieIcfgContainer [2020-10-20 06:25:36,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:25:36,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:25:36,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:25:36,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:25:36,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:25:35" (1/3) ... [2020-10-20 06:25:36,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7537a3fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:25:36, skipping insertion in model container [2020-10-20 06:25:36,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:25:36" (2/3) ... [2020-10-20 06:25:36,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7537a3fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:25:36, skipping insertion in model container [2020-10-20 06:25:36,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:25:36" (3/3) ... [2020-10-20 06:25:36,498 INFO L111 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig7.c [2020-10-20 06:25:36,509 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:25:36,516 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-20 06:25:36,529 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-20 06:25:36,549 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:25:36,549 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:25:36,550 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:25:36,550 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:25:36,550 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:25:36,550 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:25:36,550 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:25:36,551 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:25:36,565 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-10-20 06:25:36,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-20 06:25:36,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:25:36,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-20 06:25:36,571 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:25:36,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:25:36,576 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-10-20 06:25:36,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:25:36,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990720856] [2020-10-20 06:25:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:25:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:25:36,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:25:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:25:36,688 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:25:36,703 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:25:36,704 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:25:36,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:25:36,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:25:36 BoogieIcfgContainer [2020-10-20 06:25:36,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:25:36,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:25:36,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:25:36,721 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:25:36,722 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:25:36" (3/4) ... [2020-10-20 06:25:36,724 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 06:25:36,771 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:25:36,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:25:36,779 INFO L168 Benchmark]: Toolchain (without parser) took 854.78 ms. Allocated memory was 41.9 MB in the beginning and 44.6 MB in the end (delta: 2.6 MB). Free memory was 21.4 MB in the beginning and 25.7 MB in the end (delta: -4.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:36,780 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 31.5 MB. Free memory was 8.0 MB in the beginning and 7.9 MB in the end (delta: 43.8 kB). Peak memory consumption was 43.8 kB. Max. memory is 14.3 GB. [2020-10-20 06:25:36,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.23 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 20.6 MB in the beginning and 22.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:36,783 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.05 ms. Allocated memory is still 42.5 MB. Free memory was 22.8 MB in the beginning and 21.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:36,784 INFO L168 Benchmark]: Boogie Preprocessor took 19.66 ms. Allocated memory is still 42.5 MB. Free memory was 21.2 MB in the beginning and 20.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:36,788 INFO L168 Benchmark]: RCFGBuilder took 259.29 ms. Allocated memory was 42.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). Free memory was 20.0 MB in the beginning and 25.4 MB in the end (delta: -5.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:36,789 INFO L168 Benchmark]: TraceAbstraction took 230.17 ms. Allocated memory is still 44.0 MB. Free memory was 24.9 MB in the beginning and 11.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:36,789 INFO L168 Benchmark]: Witness Printer took 55.63 ms. Allocated memory was 44.0 MB in the beginning and 44.6 MB in the end (delta: 524.3 kB). Free memory was 11.9 MB in the beginning and 25.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:25:36,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 31.5 MB. Free memory was 8.0 MB in the beginning and 7.9 MB in the end (delta: 43.8 kB). Peak memory consumption was 43.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 244.23 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 20.6 MB in the beginning and 22.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 35.05 ms. Allocated memory is still 42.5 MB. Free memory was 22.8 MB in the beginning and 21.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 19.66 ms. Allocated memory is still 42.5 MB. Free memory was 21.2 MB in the beginning and 20.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 259.29 ms. Allocated memory was 42.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). Free memory was 20.0 MB in the beginning and 25.4 MB in the end (delta: -5.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 230.17 ms. Allocated memory is still 44.0 MB. Free memory was 24.9 MB in the beginning and 11.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 14.3 GB. * Witness Printer took 55.63 ms. Allocated memory was 44.0 MB in the beginning and 44.6 MB in the end (delta: 524.3 kB). Free memory was 11.9 MB in the beginning and 25.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a, b, c, i, j, M, N; [L16] i = __VERIFIER_nondet_int() [L17] j = __VERIFIER_nondet_int() [L18] M = __VERIFIER_nondet_int() [L19] N = __VERIFIER_nondet_int() [L20] a = i [L21] b = j [L22] c = 0 [L23] COND TRUE i