./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/num_conversion_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/bitvector/num_conversion_2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ff582c9ab67a3c5a19efc8f09de08768907e1ba6 ............................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:26:57,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:26:57,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:26:57,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:26:57,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:26:57,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:26:57,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:26:57,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:26:57,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:26:57,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:26:57,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:26:57,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:26:57,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:26:57,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:26:57,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:26:57,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:26:57,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:26:57,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:26:57,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:26:57,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:26:57,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:26:57,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:26:57,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:26:57,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:26:57,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:26:57,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:26:57,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:26:57,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:26:57,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:26:57,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:26:57,569 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:26:57,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:26:57,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:26:57,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:26:57,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:26:57,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:26:57,576 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:26:57,576 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:26:57,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:26:57,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:26:57,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:26:57,582 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-11-28 20:26:57,604 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:26:57,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:26:57,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:26:57,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:26:57,608 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:26:57,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:26:57,608 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:26:57,609 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:26:57,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:26:57,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:26:57,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:26:57,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 20:26:57,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 20:26:57,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 20:26:57,612 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 20:26:57,612 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:26:57,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:26:57,613 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:26:57,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 20:26:57,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:26:57,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:26:57,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 20:26:57,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 20:26:57,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 20:26:57,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:26:57,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 20:26:57,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 20:26:57,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:26:57,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 20:26:57,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 20:26:57,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:26:57,617 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff582c9ab67a3c5a19efc8f09de08768907e1ba6 [2019-11-28 20:26:58,038 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:26:58,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:26:58,060 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:26:58,063 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:26:58,064 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:26:58,065 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/num_conversion_2.c [2019-11-28 20:26:58,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f93010a62/3be90276175f4b48be71705022ab25f2/FLAG1f7560588 [2019-11-28 20:26:58,553 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:26:58,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/num_conversion_2.c [2019-11-28 20:26:58,561 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f93010a62/3be90276175f4b48be71705022ab25f2/FLAG1f7560588 [2019-11-28 20:26:58,989 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f93010a62/3be90276175f4b48be71705022ab25f2 [2019-11-28 20:26:58,993 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:26:58,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:26:58,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:26:58,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:26:59,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:26:59,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:26:58" (1/1) ... [2019-11-28 20:26:59,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33519a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:59, skipping insertion in model container [2019-11-28 20:26:59,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:26:58" (1/1) ... [2019-11-28 20:26:59,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:26:59,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:26:59,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:26:59,286 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:26:59,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:26:59,326 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:26:59,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:59 WrapperNode [2019-11-28 20:26:59,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:26:59,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:26:59,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:26:59,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:26:59,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:59" (1/1) ... [2019-11-28 20:26:59,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:59" (1/1) ... [2019-11-28 20:26:59,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:26:59,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:26:59,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:26:59,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:26:59,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:59" (1/1) ... [2019-11-28 20:26:59,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:59" (1/1) ... [2019-11-28 20:26:59,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:59" (1/1) ... [2019-11-28 20:26:59,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:59" (1/1) ... [2019-11-28 20:26:59,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:59" (1/1) ... [2019-11-28 20:26:59,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:59" (1/1) ... [2019-11-28 20:26:59,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:59" (1/1) ... [2019-11-28 20:26:59,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:26:59,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:26:59,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:26:59,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:26:59,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:59" (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 20:26:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:26:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:26:59,768 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:26:59,768 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 20:26:59,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:26:59 BoogieIcfgContainer [2019-11-28 20:26:59,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:26:59,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 20:26:59,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 20:26:59,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 20:26:59,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:26:58" (1/3) ... [2019-11-28 20:26:59,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83342aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:26:59, skipping insertion in model container [2019-11-28 20:26:59,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:26:59" (2/3) ... [2019-11-28 20:26:59,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83342aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:26:59, skipping insertion in model container [2019-11-28 20:26:59,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:26:59" (3/3) ... [2019-11-28 20:26:59,779 INFO L109 eAbstractionObserver]: Analyzing ICFG num_conversion_2.c [2019-11-28 20:26:59,789 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 20:26:59,796 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-28 20:26:59,807 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-28 20:26:59,834 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 20:26:59,835 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 20:26:59,835 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 20:26:59,835 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:26:59,835 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:26:59,835 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 20:26:59,835 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:26:59,836 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 20:26:59,856 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-28 20:26:59,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-28 20:26:59,861 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 20:26:59,862 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-28 20:26:59,863 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]=== [2019-11-28 20:26:59,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:26:59,869 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-28 20:26:59,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:26:59,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639013213] [2019-11-28 20:26:59,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:26:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:26:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:26:59,973 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:26:59,974 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 20:26:59,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:26:59 BoogieIcfgContainer [2019-11-28 20:26:59,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 20:26:59,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:26:59,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:26:59,990 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:26:59,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:26:59" (3/4) ... [2019-11-28 20:26:59,995 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:26:59,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:26:59,998 INFO L168 Benchmark]: Toolchain (without parser) took 1001.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -93.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:26:59,998 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:26:59,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.54 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:27:00,001 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -136.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:27:00,001 INFO L168 Benchmark]: Boogie Preprocessor took 36.91 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 20:27:00,002 INFO L168 Benchmark]: RCFGBuilder took 273.74 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:27:00,003 INFO L168 Benchmark]: TraceAbstraction took 217.94 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:27:00,004 INFO L168 Benchmark]: Witness Printer took 4.88 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 20:27:00,009 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 331.54 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 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 130.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -136.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.91 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. * RCFGBuilder took 273.74 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 217.94 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.88 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: - UnprovableResult [Line: 21]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of shiftLeft at line 21. Possible FailurePath: [L14] unsigned char x = __VERIFIER_nondet_uchar(); [L15] unsigned char y; [L16] unsigned char c; [L18] y = 0 [L19] c = 0 [L20] COND TRUE c < (unsigned char)8 [L21] ((unsigned char)1) << c - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 6 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=22occurred 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, 3 NumberOfCodeBlocks, 3 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...