./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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/floats-cbmc-regression/float1_true-unreach-call_true-termination.i -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 d83baf1cdb4ca03660244dae388672dd75d02b3f ....................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/floats-cbmc-regression/float1_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 d83baf1cdb4ca03660244dae388672dd75d02b3f ............................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 02:41:27,515 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:41:27,517 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:41:27,535 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:41:27,535 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:41:27,538 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:41:27,539 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:41:27,542 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:41:27,545 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:41:27,546 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:41:27,549 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:41:27,549 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:41:27,551 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:41:27,552 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:41:27,555 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:41:27,556 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:41:27,557 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:41:27,566 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:41:27,570 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:41:27,572 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:41:27,573 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:41:27,574 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:41:27,576 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:41:27,577 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:41:27,577 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:41:27,578 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:41:27,579 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:41:27,579 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:41:27,580 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:41:27,581 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:41:27,581 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:41:27,582 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:41:27,582 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:41:27,583 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:41:27,583 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:41:27,584 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:41:27,584 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:41:27,601 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:41:27,602 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:41:27,603 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:41:27,603 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:41:27,604 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:41:27,605 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:41:27,605 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:41:27,605 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:41:27,605 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:41:27,605 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:41:27,605 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:41:27,606 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:41:27,606 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:41:27,606 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:41:27,606 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:41:27,606 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:41:27,606 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:41:27,608 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:41:27,608 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:41:27,608 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:41:27,608 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:41:27,609 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:41:27,609 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:41:27,609 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:41:27,609 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:41:27,609 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:41:27,609 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:41:27,610 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:41:27,610 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 -> d83baf1cdb4ca03660244dae388672dd75d02b3f [2018-12-31 02:41:27,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:41:27,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:41:27,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:41:27,687 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:41:27,687 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:41:27,688 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-12-31 02:41:27,762 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24e750d6d/d218338459cc4cc3b6ea7321fa108a0d/FLAG7396acec5 [2018-12-31 02:41:28,252 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:41:28,253 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-12-31 02:41:28,258 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24e750d6d/d218338459cc4cc3b6ea7321fa108a0d/FLAG7396acec5 [2018-12-31 02:41:28,603 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24e750d6d/d218338459cc4cc3b6ea7321fa108a0d [2018-12-31 02:41:28,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:41:28,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:41:28,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:41:28,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:41:28,621 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:41:28,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:41:28" (1/1) ... [2018-12-31 02:41:28,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2743ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:28, skipping insertion in model container [2018-12-31 02:41:28,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:41:28" (1/1) ... [2018-12-31 02:41:28,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:41:28,657 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:41:28,863 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:41:28,869 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:41:28,888 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:41:28,905 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:41:28,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:28 WrapperNode [2018-12-31 02:41:28,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:41:28,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:41:28,907 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:41:28,907 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:41:28,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:28" (1/1) ... [2018-12-31 02:41:28,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:28" (1/1) ... [2018-12-31 02:41:28,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:41:28,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:41:28,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:41:28,951 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:41:28,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:28" (1/1) ... [2018-12-31 02:41:28,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:28" (1/1) ... [2018-12-31 02:41:28,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:28" (1/1) ... [2018-12-31 02:41:28,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:28" (1/1) ... [2018-12-31 02:41:28,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:28" (1/1) ... [2018-12-31 02:41:28,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:28" (1/1) ... [2018-12-31 02:41:28,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:28" (1/1) ... [2018-12-31 02:41:28,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:41:28,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:41:28,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:41:28,984 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:41:28,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:28" (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 [2018-12-31 02:41:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:41:29,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:41:29,361 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:41:29,362 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 02:41:29,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:41:29 BoogieIcfgContainer [2018-12-31 02:41:29,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:41:29,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:41:29,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:41:29,367 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:41:29,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:41:28" (1/3) ... [2018-12-31 02:41:29,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e37338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:41:29, skipping insertion in model container [2018-12-31 02:41:29,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:28" (2/3) ... [2018-12-31 02:41:29,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e37338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:41:29, skipping insertion in model container [2018-12-31 02:41:29,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:41:29" (3/3) ... [2018-12-31 02:41:29,371 INFO L112 eAbstractionObserver]: Analyzing ICFG float1_true-unreach-call_true-termination.i [2018-12-31 02:41:29,382 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:41:29,391 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-12-31 02:41:29,407 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-12-31 02:41:29,442 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:41:29,443 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:41:29,443 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:41:29,443 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:41:29,444 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:41:29,444 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:41:29,444 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:41:29,445 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:41:29,445 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:41:29,466 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2018-12-31 02:41:29,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:41:29,476 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:41:29,477 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:41:29,482 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:41:29,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:41:29,492 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:41:29,494 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 02:41:29,495 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 02:41:29,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:41:29,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:41:29,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:41:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:41:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:41:29,593 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:41:29,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:41:29 BoogieIcfgContainer [2018-12-31 02:41:29,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:41:29,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:41:29,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:41:29,614 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:41:29,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:41:29" (3/4) ... [2018-12-31 02:41:29,620 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 02:41:29,620 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:41:29,621 INFO L168 Benchmark]: Toolchain (without parser) took 1010.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -157.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:41:29,625 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-31 02:41:29,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.65 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:29,630 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.32 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:41:29,635 INFO L168 Benchmark]: Boogie Preprocessor took 32.17 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:41:29,636 INFO L168 Benchmark]: RCFGBuilder took 379.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -181.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:29,638 INFO L168 Benchmark]: TraceAbstraction took 248.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:29,640 INFO L168 Benchmark]: Witness Printer took 6.96 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. [2018-12-31 02:41:29,646 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 292.65 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 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 43.32 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.17 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 379.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -181.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 248.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.96 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: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 8, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of to_real at line 6. Possible FailurePath: [L3] double x; [L4] int y; [L6] x=2 [L7] x-=0.6 [L8] y=x [L10] COND TRUE !(y==1) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 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, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-2e94e6a [2018-12-31 02:41:32,074 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:41:32,076 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:41:32,089 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:41:32,090 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:41:32,091 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:41:32,093 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:41:32,095 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:41:32,097 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:41:32,098 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:41:32,099 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:41:32,100 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:41:32,101 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:41:32,102 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:41:32,104 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:41:32,105 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:41:32,106 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:41:32,108 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:41:32,110 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:41:32,112 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:41:32,114 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:41:32,117 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:41:32,121 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:41:32,125 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:41:32,125 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:41:32,126 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:41:32,127 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:41:32,128 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:41:32,129 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:41:32,130 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:41:32,130 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:41:32,130 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:41:32,131 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:41:32,131 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:41:32,132 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:41:32,132 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:41:32,133 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:41:32,148 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:41:32,149 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:41:32,150 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:41:32,150 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:41:32,150 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:41:32,151 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:41:32,151 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:41:32,151 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:41:32,151 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:41:32,151 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:41:32,152 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:41:32,152 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:41:32,152 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:41:32,152 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:41:32,152 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:41:32,152 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:41:32,153 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:41:32,153 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:41:32,153 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:41:32,153 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:41:32,153 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:41:32,154 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:41:32,154 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:41:32,154 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:41:32,154 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:41:32,154 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:41:32,154 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:41:32,155 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:41:32,155 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:41:32,155 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:41:32,155 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 -> d83baf1cdb4ca03660244dae388672dd75d02b3f [2018-12-31 02:41:32,202 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:41:32,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:41:32,229 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:41:32,230 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:41:32,231 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:41:32,232 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-12-31 02:41:32,305 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8432e23/67c5e44402ee40ccb249dfced9cde9db/FLAGf48174d5f [2018-12-31 02:41:32,762 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:41:32,763 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-12-31 02:41:32,773 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8432e23/67c5e44402ee40ccb249dfced9cde9db/FLAGf48174d5f [2018-12-31 02:41:33,127 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe8432e23/67c5e44402ee40ccb249dfced9cde9db [2018-12-31 02:41:33,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:41:33,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:41:33,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:41:33,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:41:33,138 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:41:33,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:41:33" (1/1) ... [2018-12-31 02:41:33,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@685d68d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:33, skipping insertion in model container [2018-12-31 02:41:33,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:41:33" (1/1) ... [2018-12-31 02:41:33,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:41:33,168 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:41:33,391 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:41:33,404 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:41:33,425 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:41:33,445 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:41:33,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:33 WrapperNode [2018-12-31 02:41:33,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:41:33,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:41:33,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:41:33,447 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:41:33,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:33" (1/1) ... [2018-12-31 02:41:33,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:33" (1/1) ... [2018-12-31 02:41:33,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:41:33,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:41:33,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:41:33,495 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:41:33,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:33" (1/1) ... [2018-12-31 02:41:33,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:33" (1/1) ... [2018-12-31 02:41:33,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:33" (1/1) ... [2018-12-31 02:41:33,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:33" (1/1) ... [2018-12-31 02:41:33,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:33" (1/1) ... [2018-12-31 02:41:33,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:33" (1/1) ... [2018-12-31 02:41:33,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:33" (1/1) ... [2018-12-31 02:41:33,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:41:33,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:41:33,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:41:33,536 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:41:33,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:33" (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 [2018-12-31 02:41:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:41:33,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:41:33,856 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:41:33,856 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 02:41:33,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:41:33 BoogieIcfgContainer [2018-12-31 02:41:33,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:41:33,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:41:33,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:41:33,862 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:41:33,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:41:33" (1/3) ... [2018-12-31 02:41:33,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c562a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:41:33, skipping insertion in model container [2018-12-31 02:41:33,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:33" (2/3) ... [2018-12-31 02:41:33,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c562a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:41:33, skipping insertion in model container [2018-12-31 02:41:33,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:41:33" (3/3) ... [2018-12-31 02:41:33,865 INFO L112 eAbstractionObserver]: Analyzing ICFG float1_true-unreach-call_true-termination.i [2018-12-31 02:41:33,876 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:41:33,884 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-12-31 02:41:33,900 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-12-31 02:41:33,931 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:41:33,932 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:41:33,932 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:41:33,932 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:41:33,933 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:41:33,933 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:41:33,933 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:41:33,933 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:41:33,933 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:41:33,949 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2018-12-31 02:41:33,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:41:33,957 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:41:33,958 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:41:33,961 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:41:33,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:41:33,968 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:41:33,973 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:41:33,974 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-12-31 02:41:33,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 02:41:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:41:34,033 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:41:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 02:41:34,122 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:41:34,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:41:34,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 02:41:34,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 02:41:34,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 02:41:34,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:41:34,202 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2018-12-31 02:41:34,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:41:34,247 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-12-31 02:41:34,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 02:41:34,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-31 02:41:34,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:41:34,256 INFO L225 Difference]: With dead ends: 16 [2018-12-31 02:41:34,257 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 02:41:34,260 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:41:34,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 02:41:34,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 02:41:34,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 02:41:34,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 02:41:34,288 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2018-12-31 02:41:34,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:41:34,288 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 02:41:34,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 02:41:34,289 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 02:41:34,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 02:41:34,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 02:41:34,299 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 02:41:34,299 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 02:41:34,299 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 02:41:34,299 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-12-31 02:41:34,300 INFO L448 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-12-31 02:41:34,300 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-12-31 02:41:34,300 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-12-31 02:41:34,300 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-12-31 02:41:34,300 INFO L448 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2018-12-31 02:41:34,301 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2018-12-31 02:41:34,301 INFO L448 ceAbstractionStarter]: For program point L2(lines 2 18) no Hoare annotation was computed. [2018-12-31 02:41:34,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:41:34 BoogieIcfgContainer [2018-12-31 02:41:34,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:41:34,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:41:34,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:41:34,307 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:41:34,307 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:41:33" (3/4) ... [2018-12-31 02:41:34,312 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 02:41:34,325 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-31 02:41:34,325 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 02:41:34,372 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:41:34,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:41:34,373 INFO L168 Benchmark]: Toolchain (without parser) took 1242.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -126.6 MB). Peak memory consumption was 6.0 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:34,376 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-31 02:41:34,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.34 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:34,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.29 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:41:34,378 INFO L168 Benchmark]: Boogie Preprocessor took 40.23 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:41:34,378 INFO L168 Benchmark]: RCFGBuilder took 321.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:34,380 INFO L168 Benchmark]: TraceAbstraction took 447.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:34,381 INFO L168 Benchmark]: Witness Printer took 66.11 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. [2018-12-31 02:41:34,386 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 312.34 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 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 47.29 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.23 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 321.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 447.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Witness Printer took 66.11 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: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 2 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 2 NumberOfNonLiveVariables, 6 ConjunctsInSsa, 3 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...