./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-industry-pattern/mod3_true-unreach-call.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/loop-industry-pattern/mod3_true-unreach-call.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f5d9ac754231ae2d56ad4837ed9503039449ffeb ........................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:23:04,565 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:23:04,567 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:23:04,580 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:23:04,580 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:23:04,581 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:23:04,583 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:23:04,585 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:23:04,587 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:23:04,588 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:23:04,589 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:23:04,589 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:23:04,590 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:23:04,592 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:23:04,593 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:23:04,594 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:23:04,595 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:23:04,598 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:23:04,600 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:23:04,602 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:23:04,603 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:23:04,605 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:23:04,608 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:23:04,609 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:23:04,609 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:23:04,610 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:23:04,612 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:23:04,613 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:23:04,614 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:23:04,615 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:23:04,616 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:23:04,617 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:23:04,617 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:23:04,617 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:23:04,618 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:23:04,620 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:23:04,620 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:23:04,636 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:23:04,637 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:23:04,637 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:23:04,638 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:23:04,639 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:23:04,639 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:23:04,639 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:23:04,639 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:23:04,639 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:23:04,640 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:23:04,640 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:23:04,640 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:23:04,640 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:23:04,640 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:23:04,640 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:23:04,642 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:23:04,642 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:23:04,642 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:23:04,642 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:23:04,643 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:23:04,643 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:23:04,643 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:23:04,643 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:23:04,643 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:23:04,644 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:23:04,645 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:23:04,645 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:23:04,645 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:23:04,645 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:23:04,645 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:23:04,646 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 ! call(__VERIFIER_error())) ) 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 -> f5d9ac754231ae2d56ad4837ed9503039449ffeb [2018-11-28 18:23:04,704 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:23:04,723 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:23:04,731 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:23:04,732 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:23:04,733 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:23:04,734 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-industry-pattern/mod3_true-unreach-call.c.v+sep-reducer.c [2018-11-28 18:23:04,801 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4922ae74/223a5351844c48e2af56b6b860e00716/FLAG2fd887908 [2018-11-28 18:23:05,289 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:23:05,291 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-industry-pattern/mod3_true-unreach-call.c.v+sep-reducer.c [2018-11-28 18:23:05,297 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4922ae74/223a5351844c48e2af56b6b860e00716/FLAG2fd887908 [2018-11-28 18:23:05,644 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4922ae74/223a5351844c48e2af56b6b860e00716 [2018-11-28 18:23:05,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:23:05,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:23:05,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:23:05,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:23:05,655 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:23:05,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:23:05" (1/1) ... [2018-11-28 18:23:05,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b1289c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:23:05, skipping insertion in model container [2018-11-28 18:23:05,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:23:05" (1/1) ... [2018-11-28 18:23:05,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:23:05,702 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:23:05,959 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:23:05,967 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:23:06,011 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:23:06,028 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:23:06,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:23:06 WrapperNode [2018-11-28 18:23:06,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:23:06,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:23:06,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:23:06,030 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:23:06,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:23:06" (1/1) ... [2018-11-28 18:23:06,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:23:06" (1/1) ... [2018-11-28 18:23:06,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:23:06,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:23:06,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:23:06,057 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:23:06,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:23:06" (1/1) ... [2018-11-28 18:23:06,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:23:06" (1/1) ... [2018-11-28 18:23:06,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:23:06" (1/1) ... [2018-11-28 18:23:06,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:23:06" (1/1) ... [2018-11-28 18:23:06,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:23:06" (1/1) ... [2018-11-28 18:23:06,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:23:06" (1/1) ... [2018-11-28 18:23:06,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:23:06" (1/1) ... [2018-11-28 18:23:06,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:23:06,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:23:06,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:23:06,091 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:23:06,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:23:06" (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 18:23:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:23:06,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:23:06,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:23:06,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:23:06,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:23:06,232 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:23:06,721 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:23:06,721 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 18:23:06,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:23:06 BoogieIcfgContainer [2018-11-28 18:23:06,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:23:06,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:23:06,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:23:06,727 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:23:06,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:23:05" (1/3) ... [2018-11-28 18:23:06,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67422fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:23:06, skipping insertion in model container [2018-11-28 18:23:06,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:23:06" (2/3) ... [2018-11-28 18:23:06,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67422fb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:23:06, skipping insertion in model container [2018-11-28 18:23:06,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:23:06" (3/3) ... [2018-11-28 18:23:06,732 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3_true-unreach-call.c.v+sep-reducer.c [2018-11-28 18:23:06,743 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:23:06,752 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:23:06,772 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:23:06,805 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:23:06,806 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:23:06,806 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:23:06,807 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:23:06,807 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:23:06,808 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:23:06,808 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:23:06,808 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:23:06,808 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:23:06,828 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-28 18:23:06,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 18:23:06,835 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:23:06,836 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:23:06,838 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:23:06,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:23:06,844 INFO L82 PathProgramCache]: Analyzing trace with hash 453243256, now seen corresponding path program 1 times [2018-11-28 18:23:06,847 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:23:06,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:23:06,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:23:06,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:23:06,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:23:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:23:07,367 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 17 [2018-11-28 18:23:07,399 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 18:23:07,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:23:07,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 18:23:07,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 18:23:07,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 18:23:07,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 18:23:07,423 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2018-11-28 18:23:09,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:23:09,038 INFO L93 Difference]: Finished difference Result 52 states and 70 transitions. [2018-11-28 18:23:09,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 18:23:09,040 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-28 18:23:09,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:23:09,048 INFO L225 Difference]: With dead ends: 52 [2018-11-28 18:23:09,049 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:23:09,055 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 18:23:09,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:23:09,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:23:09,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:23:09,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:23:09,086 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-28 18:23:09,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:23:09,087 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:23:09,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 18:23:09,087 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:23:09,087 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:23:09,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:23:09,183 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:23:09,183 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:23:09,183 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:23:09,183 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:23:09,183 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:23:09,183 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:23:09,184 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:23:09,184 INFO L448 ceAbstractionStarter]: For program point L93(lines 93 102) no Hoare annotation was computed. [2018-11-28 18:23:09,184 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 145) no Hoare annotation was computed. [2018-11-28 18:23:09,184 INFO L444 ceAbstractionStarter]: At program point L40(lines 22 139) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* (- 4294967296) .cse0))) (let ((.cse1 (div (+ main_~main__x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~main__x~0 .cse2 (* (- 3) .cse1)) 4294967296))))))) [2018-11-28 18:23:09,185 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 80) no Hoare annotation was computed. [2018-11-28 18:23:09,185 INFO L448 ceAbstractionStarter]: For program point L86(lines 86 108) no Hoare annotation was computed. [2018-11-28 18:23:09,185 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 144) no Hoare annotation was computed. [2018-11-28 18:23:09,185 INFO L448 ceAbstractionStarter]: For program point L115(lines 115 137) no Hoare annotation was computed. [2018-11-28 18:23:09,185 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2018-11-28 18:23:09,185 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 82) no Hoare annotation was computed. [2018-11-28 18:23:09,185 INFO L451 ceAbstractionStarter]: At program point L136(lines 14 145) the Hoare annotation is: true [2018-11-28 18:23:09,186 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 138) no Hoare annotation was computed. [2018-11-28 18:23:09,186 INFO L448 ceAbstractionStarter]: For program point L95(line 95) no Hoare annotation was computed. [2018-11-28 18:23:09,186 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 81) no Hoare annotation was computed. [2018-11-28 18:23:09,186 INFO L444 ceAbstractionStarter]: At program point L50(lines 22 139) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* (- 4294967296) .cse0))) (let ((.cse1 (div (+ main_~main__x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~main__x~0 .cse2 (* (- 3) .cse1)) 4294967296))))))) [2018-11-28 18:23:09,186 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 145) no Hoare annotation was computed. [2018-11-28 18:23:09,186 INFO L451 ceAbstractionStarter]: At program point L133(lines 33 138) the Hoare annotation is: true [2018-11-28 18:23:09,187 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 145) the Hoare annotation is: true [2018-11-28 18:23:09,187 INFO L444 ceAbstractionStarter]: At program point L59(lines 34 110) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* (- 4294967296) .cse0))) (let ((.cse1 (div (+ main_~main__x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~main__x~0 .cse2 (* (- 3) .cse1)) 4294967296))))))) [2018-11-28 18:23:09,187 INFO L451 ceAbstractionStarter]: At program point L121(lines 33 138) the Hoare annotation is: true [2018-11-28 18:23:09,187 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 139) no Hoare annotation was computed. [2018-11-28 18:23:09,187 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 109) no Hoare annotation was computed. [2018-11-28 18:23:09,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:23:09 BoogieIcfgContainer [2018-11-28 18:23:09,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:23:09,207 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:23:09,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:23:09,214 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:23:09,214 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:23:06" (3/4) ... [2018-11-28 18:23:09,218 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:23:09,226 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:23:09,227 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:23:09,235 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-28 18:23:09,235 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 18:23:09,317 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:23:09,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:23:09,319 INFO L168 Benchmark]: Toolchain (without parser) took 3670.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -105.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:23:09,320 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:23:09,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.74 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:23:09,321 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.19 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:23:09,321 INFO L168 Benchmark]: Boogie Preprocessor took 33.88 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:23:09,322 INFO L168 Benchmark]: RCFGBuilder took 630.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:23:09,323 INFO L168 Benchmark]: TraceAbstraction took 2483.51 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:23:09,323 INFO L168 Benchmark]: Witness Printer took 110.43 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:23:09,327 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 377.74 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 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 27.19 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.88 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 630.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2483.51 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * Witness Printer took 110.43 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x + -4294967296 * (main__x / 4294967296)) / 3) + 4294967296 * ((main__x + -4294967296 * (main__x / 4294967296) + -3 * ((main__x + -4294967296 * (main__x / 4294967296)) / 3)) / 4294967296) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x + -4294967296 * (main__x / 4294967296)) / 3) + 4294967296 * ((main__x + -4294967296 * (main__x / 4294967296) + -3 * ((main__x + -4294967296 * (main__x / 4294967296)) / 3)) / 4294967296) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x + -4294967296 * (main__x / 4294967296)) / 3) + 4294967296 * ((main__x + -4294967296 * (main__x / 4294967296) + -3 * ((main__x + -4294967296 * (main__x / 4294967296)) / 3)) / 4294967296) - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 28 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 10 SDslu, 44 SDs, 0 SdLazy, 17 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 130 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 2464 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 correct! Received shutdown request...