./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 f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-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 0.1.24-f6fb2bb [2019-11-19 19:53:13,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 19:53:13,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 19:53:13,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 19:53:13,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 19:53:13,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 19:53:13,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 19:53:13,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 19:53:13,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 19:53:13,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 19:53:13,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 19:53:13,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 19:53:13,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 19:53:13,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 19:53:13,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 19:53:13,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 19:53:13,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 19:53:13,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 19:53:13,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 19:53:13,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 19:53:13,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 19:53:13,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 19:53:13,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 19:53:13,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 19:53:13,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 19:53:13,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 19:53:13,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 19:53:13,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 19:53:13,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 19:53:13,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 19:53:13,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 19:53:13,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 19:53:13,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 19:53:13,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 19:53:13,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 19:53:13,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 19:53:13,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 19:53:13,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 19:53:13,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 19:53:13,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 19:53:13,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 19:53:13,537 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-19 19:53:13,557 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 19:53:13,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 19:53:13,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 19:53:13,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 19:53:13,559 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 19:53:13,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 19:53:13,560 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 19:53:13,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 19:53:13,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 19:53:13,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 19:53:13,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 19:53:13,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 19:53:13,562 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-19 19:53:13,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 19:53:13,563 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 19:53:13,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 19:53:13,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 19:53:13,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 19:53:13,564 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 19:53:13,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 19:53:13,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 19:53:13,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 19:53:13,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 19:53:13,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 19:53:13,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 19:53:13,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 19:53:13,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 19:53:13,566 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 [2019-11-19 19:53:13,947 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 19:53:13,972 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 19:53:13,976 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 19:53:13,977 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 19:53:13,978 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 19:53:13,979 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2019-11-19 19:53:14,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1feaccb0b/414c16535ee948b080b15cae23c09bb1/FLAG69499b672 [2019-11-19 19:53:14,525 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 19:53:14,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig7.c [2019-11-19 19:53:14,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1feaccb0b/414c16535ee948b080b15cae23c09bb1/FLAG69499b672 [2019-11-19 19:53:14,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1feaccb0b/414c16535ee948b080b15cae23c09bb1 [2019-11-19 19:53:14,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 19:53:14,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 19:53:14,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 19:53:14,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 19:53:14,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 19:53:14,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:14" (1/1) ... [2019-11-19 19:53:14,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b4b0e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:14, skipping insertion in model container [2019-11-19 19:53:14,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:14" (1/1) ... [2019-11-19 19:53:14,903 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 19:53:14,927 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 19:53:15,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:53:15,116 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 19:53:15,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:53:15,145 INFO L192 MainTranslator]: Completed translation [2019-11-19 19:53:15,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:15 WrapperNode [2019-11-19 19:53:15,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 19:53:15,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 19:53:15,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 19:53:15,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 19:53:15,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:15" (1/1) ... [2019-11-19 19:53:15,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:15" (1/1) ... [2019-11-19 19:53:15,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 19:53:15,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 19:53:15,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 19:53:15,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 19:53:15,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:15" (1/1) ... [2019-11-19 19:53:15,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:15" (1/1) ... [2019-11-19 19:53:15,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:15" (1/1) ... [2019-11-19 19:53:15,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:15" (1/1) ... [2019-11-19 19:53:15,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:15" (1/1) ... [2019-11-19 19:53:15,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:15" (1/1) ... [2019-11-19 19:53:15,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:15" (1/1) ... [2019-11-19 19:53:15,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 19:53:15,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 19:53:15,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 19:53:15,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 19:53:15,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 19:53:15,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 19:53:15,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 19:53:15,524 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 19:53:15,525 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-19 19:53:15,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:15 BoogieIcfgContainer [2019-11-19 19:53:15,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 19:53:15,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 19:53:15,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 19:53:15,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 19:53:15,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:53:14" (1/3) ... [2019-11-19 19:53:15,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6ae4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:15, skipping insertion in model container [2019-11-19 19:53:15,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:15" (2/3) ... [2019-11-19 19:53:15,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6ae4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:15, skipping insertion in model container [2019-11-19 19:53:15,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:15" (3/3) ... [2019-11-19 19:53:15,551 INFO L109 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig7.c [2019-11-19 19:53:15,568 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 19:53:15,580 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-19 19:53:15,598 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-19 19:53:15,640 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 19:53:15,640 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 19:53:15,653 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 19:53:15,657 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 19:53:15,657 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 19:53:15,657 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 19:53:15,658 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 19:53:15,658 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 19:53:15,678 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-11-19 19:53:15,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-19 19:53:15,684 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:53:15,685 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-19 19:53:15,685 INFO L410 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]=== [2019-11-19 19:53:15,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:53:15,690 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-19 19:53:15,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:53:15,699 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98750434] [2019-11-19 19:53:15,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:53:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:53:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 19:53:15,831 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 19:53:15,832 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 19:53:15,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:53:15 BoogieIcfgContainer [2019-11-19 19:53:15,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 19:53:15,849 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 19:53:15,849 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 19:53:15,850 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 19:53:15,850 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:15" (3/4) ... [2019-11-19 19:53:15,852 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 19:53:15,896 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 19:53:15,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 19:53:15,899 INFO L168 Benchmark]: Toolchain (without parser) took 1012.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -133.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:53:15,900 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:53:15,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.15 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 942.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:15,902 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.41 ms. Allocated memory is still 1.0 GB. Free memory is still 942.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:53:15,903 INFO L168 Benchmark]: Boogie Preprocessor took 82.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:15,904 INFO L168 Benchmark]: RCFGBuilder took 268.47 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: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:15,905 INFO L168 Benchmark]: TraceAbstraction took 314.00 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: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-11-19 19:53:15,905 INFO L168 Benchmark]: Witness Printer took 47.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 19:53:15,911 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 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 259.15 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 942.9 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 28.41 ms. Allocated memory is still 1.0 GB. Free memory is still 942.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 82.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 942.9 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 268.47 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: 11.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 314.00 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: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Witness Printer took 47.62 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: 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