./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.06.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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/ChenFlurMukhopadhyay-SAS2012-Ex2.06.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 70e4651be389b19c4cd74f16914e3e3661c9cc20 ............................................................................................................................................................................................................................................................ 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 0.1.25-8bd4bc6 [2020-07-29 01:23:23,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:23:23,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:23:23,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:23:23,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:23:23,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:23:23,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:23:23,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:23:23,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:23:23,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:23:23,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:23:23,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:23:23,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:23:23,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:23:23,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:23:23,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:23:23,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:23:23,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:23:23,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:23:23,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:23:23,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:23:23,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:23:23,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:23:23,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:23:23,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:23:23,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:23:23,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:23:23,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:23:23,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:23:23,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:23:23,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:23:23,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:23:23,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:23:23,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:23:23,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:23:23,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:23:23,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:23:23,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:23:23,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:23:23,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:23:23,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:23:23,464 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-07-29 01:23:23,480 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:23:23,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:23:23,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:23:23,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:23:23,483 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:23:23,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:23:23,483 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:23:23,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:23:23,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:23:23,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:23:23,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:23:23,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:23:23,485 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:23:23,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:23:23,486 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:23:23,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:23:23,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:23:23,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:23:23,487 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:23:23,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:23:23,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:23:23,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:23:23,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:23:23,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:23:23,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:23:23,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:23:23,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:23:23,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:23:23,490 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 -> 70e4651be389b19c4cd74f16914e3e3661c9cc20 [2020-07-29 01:23:23,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:23:23,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:23:23,879 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:23:23,881 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:23:23,881 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:23:23,882 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.06.c [2020-07-29 01:23:23,940 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7220f1a82/9e43ba97e8124d4bb991471c982bdcf3/FLAG2c89873cb [2020-07-29 01:23:24,375 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:23:24,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.06.c [2020-07-29 01:23:24,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7220f1a82/9e43ba97e8124d4bb991471c982bdcf3/FLAG2c89873cb [2020-07-29 01:23:24,745 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7220f1a82/9e43ba97e8124d4bb991471c982bdcf3 [2020-07-29 01:23:24,748 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:23:24,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:23:24,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:24,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:23:24,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:23:24,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:24" (1/1) ... [2020-07-29 01:23:24,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4038f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:24, skipping insertion in model container [2020-07-29 01:23:24,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:23:24" (1/1) ... [2020-07-29 01:23:24,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:23:24,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:23:24,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:24,984 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:23:25,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:23:25,016 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:23:25,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:25 WrapperNode [2020-07-29 01:23:25,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:23:25,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:25,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:23:25,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:23:25,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:25" (1/1) ... [2020-07-29 01:23:25,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:25" (1/1) ... [2020-07-29 01:23:25,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:23:25,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:23:25,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:23:25,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:23:25,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:25" (1/1) ... [2020-07-29 01:23:25,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:25" (1/1) ... [2020-07-29 01:23:25,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:25" (1/1) ... [2020-07-29 01:23:25,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:25" (1/1) ... [2020-07-29 01:23:25,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:25" (1/1) ... [2020-07-29 01:23:25,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:25" (1/1) ... [2020-07-29 01:23:25,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:25" (1/1) ... [2020-07-29 01:23:25,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:23:25,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:23:25,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:23:25,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:23:25,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:25" (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 [2020-07-29 01:23:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:23:25,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:23:25,520 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:23:25,521 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:23:25,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:25 BoogieIcfgContainer [2020-07-29 01:23:25,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:23:25,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:23:25,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:23:25,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:23:25,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:23:24" (1/3) ... [2020-07-29 01:23:25,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5568f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:25, skipping insertion in model container [2020-07-29 01:23:25,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:23:25" (2/3) ... [2020-07-29 01:23:25,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5568f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:23:25, skipping insertion in model container [2020-07-29 01:23:25,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:25" (3/3) ... [2020-07-29 01:23:25,538 INFO L109 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.06.c [2020-07-29 01:23:25,552 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:23:25,561 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-07-29 01:23:25,583 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-07-29 01:23:25,610 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:23:25,611 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:23:25,611 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:23:25,611 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:23:25,611 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:23:25,611 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:23:25,612 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:23:25,612 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:23:25,631 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-07-29 01:23:25,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-07-29 01:23:25,638 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:23:25,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-07-29 01:23:25,641 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:23:25,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:23:25,647 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2020-07-29 01:23:25,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:23:25,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681659801] [2020-07-29 01:23:25,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:23:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:23:25,764 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:23:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:23:25,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:23:25,788 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:23:25,788 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-29 01:23:25,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:23:25,805 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-29 01:23:25,805 WARN L170 areAnnotationChecker]: L29-6 has no Hoare annotation [2020-07-29 01:23:25,805 WARN L170 areAnnotationChecker]: L29-6 has no Hoare annotation [2020-07-29 01:23:25,806 WARN L170 areAnnotationChecker]: L29-6 has no Hoare annotation [2020-07-29 01:23:25,806 WARN L170 areAnnotationChecker]: L29-7 has no Hoare annotation [2020-07-29 01:23:25,806 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-29 01:23:25,806 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-29 01:23:25,806 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-29 01:23:25,807 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-29 01:23:25,807 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-29 01:23:25,807 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-29 01:23:25,807 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-29 01:23:25,807 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-29 01:23:25,809 WARN L170 areAnnotationChecker]: L29-4 has no Hoare annotation [2020-07-29 01:23:25,809 WARN L170 areAnnotationChecker]: L29-4 has no Hoare annotation [2020-07-29 01:23:25,810 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-29 01:23:25,810 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-29 01:23:25,810 WARN L170 areAnnotationChecker]: L31-1 has no Hoare annotation [2020-07-29 01:23:25,811 WARN L170 areAnnotationChecker]: L31-1 has no Hoare annotation [2020-07-29 01:23:25,811 WARN L170 areAnnotationChecker]: L31-2 has no Hoare annotation [2020-07-29 01:23:25,811 WARN L170 areAnnotationChecker]: L31-2 has no Hoare annotation [2020-07-29 01:23:25,811 WARN L170 areAnnotationChecker]: L31-3 has no Hoare annotation [2020-07-29 01:23:25,812 WARN L170 areAnnotationChecker]: L31-3 has no Hoare annotation [2020-07-29 01:23:25,812 WARN L170 areAnnotationChecker]: L31-4 has no Hoare annotation [2020-07-29 01:23:25,812 WARN L170 areAnnotationChecker]: L31-4 has no Hoare annotation [2020-07-29 01:23:25,812 WARN L170 areAnnotationChecker]: L31-5 has no Hoare annotation [2020-07-29 01:23:25,813 WARN L170 areAnnotationChecker]: L31-5 has no Hoare annotation [2020-07-29 01:23:25,813 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-29 01:23:25,813 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-29 01:23:25,813 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation [2020-07-29 01:23:25,814 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation [2020-07-29 01:23:25,814 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-29 01:23:25,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.07 01:23:25 BoogieIcfgContainer [2020-07-29 01:23:25,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-29 01:23:25,820 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:23:25,820 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:23:25,820 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:23:25,821 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:23:25" (3/4) ... [2020-07-29 01:23:25,824 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-29 01:23:25,869 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 01:23:25,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:23:25,873 INFO L168 Benchmark]: Toolchain (without parser) took 1122.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 961.6 MB in the beginning and 1.1 GB in the end (delta: -119.1 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:25,874 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:23:25,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.94 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:25,876 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:25,877 INFO L168 Benchmark]: Boogie Preprocessor took 21.33 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. [2020-07-29 01:23:25,878 INFO L168 Benchmark]: RCFGBuilder took 392.33 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:23:25,879 INFO L168 Benchmark]: TraceAbstraction took 290.75 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. [2020-07-29 01:23:25,879 INFO L168 Benchmark]: Witness Printer took 49.71 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. [2020-07-29 01:23:25,883 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.94 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 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 94.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.33 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 392.33 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 290.75 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 49.71 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: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int x, y, oldx; [L27] x = __VERIFIER_nondet_int() [L28] y = __VERIFIER_nondet_int() [L29] 4*x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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=30occurred 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, 2 NumberOfCodeBlocks, 2 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...