./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/joey_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 91b1670e Calling Ultimate with: 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 /storage/repos/svcomp/c/termination-crafted-lit/joey_false-no-overflow.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 6360f720317c1229a4bb277806239106bfb4e5c0 ...................................................................................................................................................................................................................................................................... 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 0.1.24-91b1670 [2018-11-28 23:07:39,698 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:07:39,700 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:07:39,712 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:07:39,712 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:07:39,713 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:07:39,714 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:07:39,716 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:07:39,718 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:07:39,719 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:07:39,720 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:07:39,720 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:07:39,721 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:07:39,722 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:07:39,723 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:07:39,724 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:07:39,725 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:07:39,727 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:07:39,729 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:07:39,731 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:07:39,732 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:07:39,733 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:07:39,736 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:07:39,736 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:07:39,736 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:07:39,737 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:07:39,738 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:07:39,739 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:07:39,740 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:07:39,741 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:07:39,741 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:07:39,742 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:07:39,742 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:07:39,743 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:07:39,744 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:07:39,745 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:07:39,745 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:07:39,761 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:07:39,761 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:07:39,762 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:07:39,762 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:07:39,763 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:07:39,763 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:07:39,763 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:07:39,764 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:07:39,764 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:07:39,764 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:07:39,764 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:07:39,764 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:07:39,765 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:07:39,765 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:07:39,765 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:07:39,765 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:07:39,765 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:07:39,765 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:07:39,766 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:07:39,766 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:07:39,766 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:07:39,766 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:07:39,766 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:07:39,767 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:07:39,767 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:07:39,767 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:07:39,767 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:07:39,767 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:07:39,767 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:07:39,768 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> 6360f720317c1229a4bb277806239106bfb4e5c0 [2018-11-28 23:07:39,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:07:39,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:07:39,830 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:07:39,835 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:07:39,835 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:07:39,836 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/joey_false-no-overflow.c [2018-11-28 23:07:39,904 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a56e23e1/cc0a2825a9c140e08a9fec63c69015ad/FLAGbf12759f9 [2018-11-28 23:07:40,368 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:07:40,369 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/joey_false-no-overflow.c [2018-11-28 23:07:40,375 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a56e23e1/cc0a2825a9c140e08a9fec63c69015ad/FLAGbf12759f9 [2018-11-28 23:07:40,717 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a56e23e1/cc0a2825a9c140e08a9fec63c69015ad [2018-11-28 23:07:40,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:07:40,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:07:40,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:07:40,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:07:40,728 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:07:40,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:07:40" (1/1) ... [2018-11-28 23:07:40,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ddc6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:40, skipping insertion in model container [2018-11-28 23:07:40,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:07:40" (1/1) ... [2018-11-28 23:07:40,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:07:40,755 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:07:40,945 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:07:40,951 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:07:40,973 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:07:40,990 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:07:40,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:40 WrapperNode [2018-11-28 23:07:40,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:07:40,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:07:40,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:07:40,993 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:07:41,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:40" (1/1) ... [2018-11-28 23:07:41,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:40" (1/1) ... [2018-11-28 23:07:41,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:07:41,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:07:41,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:07:41,020 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:07:41,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:40" (1/1) ... [2018-11-28 23:07:41,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:40" (1/1) ... [2018-11-28 23:07:41,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:40" (1/1) ... [2018-11-28 23:07:41,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:40" (1/1) ... [2018-11-28 23:07:41,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:40" (1/1) ... [2018-11-28 23:07:41,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:40" (1/1) ... [2018-11-28 23:07:41,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:40" (1/1) ... [2018-11-28 23:07:41,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:07:41,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:07:41,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:07:41,062 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:07:41,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:40" (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 [2018-11-28 23:07:41,231 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2018-11-28 23:07:41,231 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2018-11-28 23:07:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:07:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:07:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:07:41,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:07:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:07:41,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:07:41,724 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:07:41,724 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 23:07:41,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:41 BoogieIcfgContainer [2018-11-28 23:07:41,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:07:41,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:07:41,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:07:41,732 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:07:41,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:07:40" (1/3) ... [2018-11-28 23:07:41,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75dfb9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:07:41, skipping insertion in model container [2018-11-28 23:07:41,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:07:40" (2/3) ... [2018-11-28 23:07:41,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75dfb9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:07:41, skipping insertion in model container [2018-11-28 23:07:41,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:41" (3/3) ... [2018-11-28 23:07:41,737 INFO L112 eAbstractionObserver]: Analyzing ICFG joey_false-no-overflow.c [2018-11-28 23:07:41,750 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:07:41,759 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-28 23:07:41,776 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-28 23:07:41,819 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:07:41,820 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:07:41,820 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:07:41,820 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:07:41,821 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:07:41,821 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:07:41,821 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:07:41,821 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:07:41,821 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:07:41,853 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-28 23:07:41,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:07:41,859 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:41,861 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:41,863 INFO L423 AbstractCegarLoop]: === Iteration 1 === [recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:41,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:41,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1079401735, now seen corresponding path program 1 times [2018-11-28 23:07:41,872 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:41,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:41,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:41,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:41,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:07:42,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:07:42,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:07:42,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 23:07:42,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 23:07:42,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 23:07:42,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-28 23:07:42,249 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 7 states. [2018-11-28 23:07:42,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:07:42,806 INFO L93 Difference]: Finished difference Result 71 states and 85 transitions. [2018-11-28 23:07:42,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 23:07:42,808 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-11-28 23:07:42,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:07:42,819 INFO L225 Difference]: With dead ends: 71 [2018-11-28 23:07:42,819 INFO L226 Difference]: Without dead ends: 56 [2018-11-28 23:07:42,822 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-11-28 23:07:42,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-28 23:07:42,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2018-11-28 23:07:42,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-28 23:07:42,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2018-11-28 23:07:42,872 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 10 [2018-11-28 23:07:42,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:07:42,872 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2018-11-28 23:07:42,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 23:07:42,872 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2018-11-28 23:07:42,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:07:42,873 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:07:42,873 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:07:42,874 INFO L423 AbstractCegarLoop]: === Iteration 2 === [recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:07:42,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:07:42,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1079401959, now seen corresponding path program 1 times [2018-11-28 23:07:42,874 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:07:42,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:07:42,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:42,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:07:42,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:07:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:07:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:07:42,921 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 23:07:42,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:07:42 BoogieIcfgContainer [2018-11-28 23:07:42,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:07:42,947 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:07:42,947 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:07:42,947 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:07:42,948 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:07:41" (3/4) ... [2018-11-28 23:07:42,950 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 23:07:42,991 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:07:42,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:07:42,992 INFO L168 Benchmark]: Toolchain (without parser) took 2270.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -122.5 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:42,994 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:42,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.01 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:42,995 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.82 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:42,996 INFO L168 Benchmark]: Boogie Preprocessor took 38.25 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:07:42,996 INFO L168 Benchmark]: RCFGBuilder took 666.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:42,997 INFO L168 Benchmark]: TraceAbstraction took 1220.46 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: 41.8 MB). Peak memory consumption was 41.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:07:42,998 INFO L168 Benchmark]: Witness Printer took 44.01 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. [2018-11-28 23:07:43,003 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 268.01 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 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 26.82 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.25 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 666.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1220.46 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: 41.8 MB). Peak memory consumption was 41.8 MB. Max. memory is 11.5 GB. * Witness Printer took 44.01 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: 15]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y; VAL [x=2147483647] [L22] CALL rec(x) VAL [\old(x)=2147483647] [L10] COND FALSE !(x <= 0) VAL [\old(x)=2147483647, x=2147483647] [L12] COND FALSE !(x%2 == 0) VAL [\old(x)=2147483647, x=2147483647] [L15] ++x VAL [\old(x)=2147483647, x=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 38 locations, 8 error locations. UNSAFE Result, 1.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 44 SDslu, 87 SDs, 0 SdLazy, 68 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 279 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...