./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.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/float-no-simp4_true-unreach-call.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 356e353e7bb6e96bd959fe4862b56669bada9c19 .............................................................................................................................................................. 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/float-no-simp4_true-unreach-call.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 356e353e7bb6e96bd959fe4862b56669bada9c19 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:40:19,424 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:40:19,427 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:40:19,444 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:40:19,444 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:40:19,445 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:40:19,447 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:40:19,449 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:40:19,451 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:40:19,452 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:40:19,453 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:40:19,453 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:40:19,454 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:40:19,455 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:40:19,457 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:40:19,458 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:40:19,459 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:40:19,461 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:40:19,463 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:40:19,465 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:40:19,466 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:40:19,468 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:40:19,471 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:40:19,471 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:40:19,471 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:40:19,472 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:40:19,473 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:40:19,475 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:40:19,476 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:40:19,477 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:40:19,477 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:40:19,478 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:40:19,478 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:40:19,479 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:40:19,480 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:40:19,481 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:40:19,481 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:40:19,510 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:40:19,512 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:40:19,513 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:40:19,513 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:40:19,514 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:40:19,518 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:40:19,518 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:40:19,519 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:40:19,519 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:40:19,519 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:40:19,519 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:40:19,519 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:40:19,520 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:40:19,520 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:40:19,520 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:40:19,520 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:40:19,520 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:40:19,521 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:40:19,523 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:40:19,523 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:40:19,523 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:40:19,523 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:40:19,523 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:40:19,523 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:40:19,525 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:40:19,525 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:40:19,525 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:40:19,525 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:40:19,525 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 -> 356e353e7bb6e96bd959fe4862b56669bada9c19 [2018-12-31 02:40:19,591 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:40:19,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:40:19,620 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:40:19,622 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:40:19,624 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:40:19,626 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2018-12-31 02:40:19,691 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a0800994/bb312a0e891b4d3f84dd9836072bdaf3/FLAGdf4bafab2 [2018-12-31 02:40:20,407 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:40:20,407 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2018-12-31 02:40:20,427 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a0800994/bb312a0e891b4d3f84dd9836072bdaf3/FLAGdf4bafab2 [2018-12-31 02:40:20,531 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a0800994/bb312a0e891b4d3f84dd9836072bdaf3 [2018-12-31 02:40:20,536 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:40:20,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:40:20,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:20,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:40:20,544 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:40:20,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:20" (1/1) ... [2018-12-31 02:40:20,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db23026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:20, skipping insertion in model container [2018-12-31 02:40:20,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:20" (1/1) ... [2018-12-31 02:40:20,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:40:20,621 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:40:21,057 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:845) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1678) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:999) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:666) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.dispatchDecaySwitchToRValueFunctionArgument(ExpressionResultTransformer.java:114) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleVerifierAssume(StandardFunctionHandler.java:1650) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1272) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:964) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1343) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3447) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-12-31 02:40:21,067 INFO L168 Benchmark]: Toolchain (without parser) took 529.55 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:21,069 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:21,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 526.11 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:21,073 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 526.11 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:845) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-2e94e6a [2018-12-31 02:40:23,331 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:40:23,333 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:40:23,346 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:40:23,348 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:40:23,349 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:40:23,351 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:40:23,352 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:40:23,355 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:40:23,358 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:40:23,360 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:40:23,360 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:40:23,362 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:40:23,364 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:40:23,367 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:40:23,368 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:40:23,369 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:40:23,372 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:40:23,374 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:40:23,376 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:40:23,377 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:40:23,379 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:40:23,382 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:40:23,382 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:40:23,382 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:40:23,383 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:40:23,385 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:40:23,386 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:40:23,386 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:40:23,388 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:40:23,388 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:40:23,389 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:40:23,389 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:40:23,389 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:40:23,390 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:40:23,392 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:40:23,392 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:40:23,408 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:40:23,409 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:40:23,410 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:40:23,410 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:40:23,410 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:40:23,410 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:40:23,411 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:40:23,412 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:40:23,412 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:40:23,412 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:40:23,412 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:40:23,412 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:40:23,412 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:40:23,413 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:40:23,413 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:40:23,414 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:40:23,414 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:40:23,414 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:40:23,414 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:40:23,414 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:40:23,414 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:40:23,415 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:40:23,415 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:40:23,415 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:40:23,415 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:40:23,415 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:40:23,416 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:40:23,417 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:40:23,417 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:40:23,418 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:40:23,418 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 -> 356e353e7bb6e96bd959fe4862b56669bada9c19 [2018-12-31 02:40:23,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:40:23,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:40:23,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:40:23,478 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:40:23,478 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:40:23,479 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2018-12-31 02:40:23,552 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4cfd2321/69a61ca108dc4374bccdee2940c0c530/FLAGfa7c7555e [2018-12-31 02:40:24,211 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:40:24,212 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2018-12-31 02:40:24,234 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4cfd2321/69a61ca108dc4374bccdee2940c0c530/FLAGfa7c7555e [2018-12-31 02:40:24,388 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4cfd2321/69a61ca108dc4374bccdee2940c0c530 [2018-12-31 02:40:24,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:40:24,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:40:24,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:24,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:40:24,401 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:40:24,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:24" (1/1) ... [2018-12-31 02:40:24,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56337292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:24, skipping insertion in model container [2018-12-31 02:40:24,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:24" (1/1) ... [2018-12-31 02:40:24,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:40:24,479 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:40:25,146 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:40:25,153 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:40:25,218 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:40:25,625 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:40:25,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:25 WrapperNode [2018-12-31 02:40:25,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:25,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:40:25,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:40:25,628 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:40:25,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:25" (1/1) ... [2018-12-31 02:40:25,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:25" (1/1) ... [2018-12-31 02:40:25,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:40:25,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:40:25,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:40:25,838 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:40:25,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:25" (1/1) ... [2018-12-31 02:40:25,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:25" (1/1) ... [2018-12-31 02:40:25,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:25" (1/1) ... [2018-12-31 02:40:25,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:25" (1/1) ... [2018-12-31 02:40:25,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:25" (1/1) ... [2018-12-31 02:40:25,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:25" (1/1) ... [2018-12-31 02:40:25,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:25" (1/1) ... [2018-12-31 02:40:25,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:40:25,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:40:25,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:40:25,896 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:40:25,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:40:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:40:25,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:40:26,471 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:40:26,472 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 02:40:26,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:26 BoogieIcfgContainer [2018-12-31 02:40:26,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:40:26,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:40:26,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:40:26,477 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:40:26,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:40:24" (1/3) ... [2018-12-31 02:40:26,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b36bcc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:40:26, skipping insertion in model container [2018-12-31 02:40:26,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:25" (2/3) ... [2018-12-31 02:40:26,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b36bcc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:40:26, skipping insertion in model container [2018-12-31 02:40:26,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:26" (3/3) ... [2018-12-31 02:40:26,481 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp4_true-unreach-call.i [2018-12-31 02:40:26,492 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:40:26,501 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-12-31 02:40:26,520 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-12-31 02:40:26,555 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:40:26,556 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:40:26,556 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:40:26,556 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:40:26,557 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:40:26,557 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:40:26,557 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:40:26,557 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:40:26,557 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:40:26,574 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-12-31 02:40:26,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:40:26,581 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:40:26,582 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:40:26,585 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:40:26,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:40:26,591 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:40:26,597 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:40:26,597 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) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 02:40:26,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:40:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:40:26,654 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:40:26,889 WARN L181 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 2 [2018-12-31 02:40:26,913 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 02:40:26,913 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:40:26,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:40:26,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 02:40:26,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 02:40:26,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 02:40:26,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:40:26,949 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 3 states. [2018-12-31 02:40:26,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:40:26,993 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2018-12-31 02:40:26,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 02:40:26,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-31 02:40:26,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:40:27,007 INFO L225 Difference]: With dead ends: 74 [2018-12-31 02:40:27,007 INFO L226 Difference]: Without dead ends: 32 [2018-12-31 02:40:27,011 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:40:27,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-31 02:40:27,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-12-31 02:40:27,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-31 02:40:27,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2018-12-31 02:40:27,047 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 3 [2018-12-31 02:40:27,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:40:27,047 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2018-12-31 02:40:27,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 02:40:27,047 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2018-12-31 02:40:27,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-31 02:40:27,048 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:40:27,048 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-31 02:40:27,048 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:40:27,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:40:27,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1420102837, now seen corresponding path program 1 times [2018-12-31 02:40:27,051 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:40:27,051 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-31 02:40:27,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:40:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:40:27,100 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:40:27,171 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 02:40:27,172 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:40:27,185 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:40:27,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 02:40:27,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 02:40:27,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 02:40:27,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:40:27,188 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 3 states. [2018-12-31 02:40:27,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:40:27,215 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2018-12-31 02:40:27,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 02:40:27,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-31 02:40:27,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:40:27,218 INFO L225 Difference]: With dead ends: 32 [2018-12-31 02:40:27,218 INFO L226 Difference]: Without dead ends: 28 [2018-12-31 02:40:27,219 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 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 02:40:27,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-12-31 02:40:27,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-12-31 02:40:27,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-31 02:40:27,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-12-31 02:40:27,224 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 7 [2018-12-31 02:40:27,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:40:27,224 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-12-31 02:40:27,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 02:40:27,224 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-12-31 02:40:27,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-31 02:40:27,226 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:40:27,226 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 02:40:27,226 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:40:27,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:40:27,227 INFO L82 PathProgramCache]: Analyzing trace with hash -851686886, now seen corresponding path program 1 times [2018-12-31 02:40:27,228 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:40:27,228 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-12-31 02:40:27,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-31 02:40:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:40:27,275 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:40:27,345 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 02:40:27,345 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:40:27,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:40:27,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 02:40:27,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 02:40:27,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 02:40:27,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:40:27,364 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 3 states. [2018-12-31 02:40:27,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:40:27,464 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-12-31 02:40:27,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 02:40:27,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-31 02:40:27,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:40:27,472 INFO L225 Difference]: With dead ends: 28 [2018-12-31 02:40:27,473 INFO L226 Difference]: Without dead ends: 22 [2018-12-31 02:40:27,473 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 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 02:40:27,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-12-31 02:40:27,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-12-31 02:40:27,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-12-31 02:40:27,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-12-31 02:40:27,479 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 10 [2018-12-31 02:40:27,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:40:27,479 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-12-31 02:40:27,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 02:40:27,480 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-12-31 02:40:27,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-31 02:40:27,480 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:40:27,480 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 02:40:27,483 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:40:27,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:40:27,485 INFO L82 PathProgramCache]: Analyzing trace with hash -352118076, now seen corresponding path program 1 times [2018-12-31 02:40:27,485 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:40:27,487 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-31 02:40:27,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:40:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:40:27,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:40:27,621 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 02:40:27,621 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:40:27,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:40:27,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 02:40:27,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 02:40:27,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 02:40:27,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:40:27,637 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 3 states. [2018-12-31 02:40:27,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:40:27,685 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-12-31 02:40:27,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 02:40:27,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-12-31 02:40:27,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:40:27,687 INFO L225 Difference]: With dead ends: 22 [2018-12-31 02:40:27,687 INFO L226 Difference]: Without dead ends: 18 [2018-12-31 02:40:27,687 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 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 02:40:27,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-31 02:40:27,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-31 02:40:27,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-31 02:40:27,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2018-12-31 02:40:27,691 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 14 [2018-12-31 02:40:27,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:40:27,692 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2018-12-31 02:40:27,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 02:40:27,692 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2018-12-31 02:40:27,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-31 02:40:27,693 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:40:27,693 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 02:40:27,693 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:40:27,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:40:27,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1635358997, now seen corresponding path program 1 times [2018-12-31 02:40:27,697 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:40:27,697 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-31 02:40:27,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:40:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:40:27,743 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:40:27,818 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 02:40:27,819 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:40:27,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:40:27,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 02:40:27,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 02:40:27,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 02:40:27,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:40:27,836 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 3 states. [2018-12-31 02:40:27,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:40:27,852 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-31 02:40:27,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 02:40:27,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-12-31 02:40:27,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:40:27,853 INFO L225 Difference]: With dead ends: 18 [2018-12-31 02:40:27,853 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 02:40:27,854 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 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 02:40:27,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 02:40:27,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 02:40:27,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 02:40:27,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 02:40:27,855 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-12-31 02:40:27,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:40:27,855 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 02:40:27,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 02:40:27,855 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 02:40:27,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 02:40:27,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 02:40:27,866 INFO L448 ceAbstractionStarter]: For program point L960(line 960) no Hoare annotation was computed. [2018-12-31 02:40:27,866 INFO L448 ceAbstractionStarter]: For program point L960-2(lines 954 991) no Hoare annotation was computed. [2018-12-31 02:40:27,866 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 976) no Hoare annotation was computed. [2018-12-31 02:40:27,866 INFO L448 ceAbstractionStarter]: For program point L961(line 961) no Hoare annotation was computed. [2018-12-31 02:40:27,866 INFO L448 ceAbstractionStarter]: For program point L961-2(line 961) no Hoare annotation was computed. [2018-12-31 02:40:27,867 INFO L448 ceAbstractionStarter]: For program point L990(line 990) no Hoare annotation was computed. [2018-12-31 02:40:27,867 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 02:40:27,867 INFO L448 ceAbstractionStarter]: For program point L990-1(line 990) no Hoare annotation was computed. [2018-12-31 02:40:27,867 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 02:40:27,867 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 983) no Hoare annotation was computed. [2018-12-31 02:40:27,867 INFO L448 ceAbstractionStarter]: For program point L953(lines 953 991) no Hoare annotation was computed. [2018-12-31 02:40:27,867 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 975) no Hoare annotation was computed. [2018-12-31 02:40:27,868 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 984) no Hoare annotation was computed. [2018-12-31 02:40:27,868 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 960) no Hoare annotation was computed. [2018-12-31 02:40:27,868 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 968) no Hoare annotation was computed. [2018-12-31 02:40:27,868 INFO L448 ceAbstractionStarter]: For program point L974(line 974) no Hoare annotation was computed. [2018-12-31 02:40:27,868 INFO L448 ceAbstractionStarter]: For program point L974-1(line 974) no Hoare annotation was computed. [2018-12-31 02:40:27,868 INFO L448 ceAbstractionStarter]: For program point L974-3(lines 954 991) no Hoare annotation was computed. [2018-12-31 02:40:27,868 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 02:40:27,868 INFO L448 ceAbstractionStarter]: For program point L983(line 983) no Hoare annotation was computed. [2018-12-31 02:40:27,868 INFO L448 ceAbstractionStarter]: For program point L983-1(line 983) no Hoare annotation was computed. [2018-12-31 02:40:27,869 INFO L448 ceAbstractionStarter]: For program point L983-3(lines 954 991) no Hoare annotation was computed. [2018-12-31 02:40:27,869 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 974) no Hoare annotation was computed. [2018-12-31 02:40:27,869 INFO L448 ceAbstractionStarter]: For program point L975(line 975) no Hoare annotation was computed. [2018-12-31 02:40:27,869 INFO L448 ceAbstractionStarter]: For program point L975-2(lines 954 991) no Hoare annotation was computed. [2018-12-31 02:40:27,869 INFO L448 ceAbstractionStarter]: For program point L967(line 967) no Hoare annotation was computed. [2018-12-31 02:40:27,869 INFO L448 ceAbstractionStarter]: For program point L967-1(line 967) no Hoare annotation was computed. [2018-12-31 02:40:27,869 INFO L448 ceAbstractionStarter]: For program point L967-3(lines 954 991) no Hoare annotation was computed. [2018-12-31 02:40:27,869 INFO L448 ceAbstractionStarter]: For program point L959(line 959) no Hoare annotation was computed. [2018-12-31 02:40:27,869 INFO L448 ceAbstractionStarter]: For program point L959-1(line 959) no Hoare annotation was computed. [2018-12-31 02:40:27,870 INFO L448 ceAbstractionStarter]: For program point L959-3(lines 954 991) no Hoare annotation was computed. [2018-12-31 02:40:27,870 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 961) no Hoare annotation was computed. [2018-12-31 02:40:27,870 INFO L448 ceAbstractionStarter]: For program point L984(line 984) no Hoare annotation was computed. [2018-12-31 02:40:27,870 INFO L448 ceAbstractionStarter]: For program point L984-2(line 984) no Hoare annotation was computed. [2018-12-31 02:40:27,870 INFO L448 ceAbstractionStarter]: For program point L976(line 976) no Hoare annotation was computed. [2018-12-31 02:40:27,870 INFO L448 ceAbstractionStarter]: For program point L976-2(line 976) no Hoare annotation was computed. [2018-12-31 02:40:27,870 INFO L448 ceAbstractionStarter]: For program point L968(line 968) no Hoare annotation was computed. [2018-12-31 02:40:27,870 INFO L448 ceAbstractionStarter]: For program point L968-2(line 968) no Hoare annotation was computed. [2018-12-31 02:40:27,871 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 990) no Hoare annotation was computed. [2018-12-31 02:40:27,871 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 959) no Hoare annotation was computed. [2018-12-31 02:40:27,871 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 967) no Hoare annotation was computed. [2018-12-31 02:40:27,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:40:27 BoogieIcfgContainer [2018-12-31 02:40:27,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:40:27,875 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:40:27,875 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:40:27,875 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:40:27,876 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:26" (3/4) ... [2018-12-31 02:40:27,886 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 02:40:27,901 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-31 02:40:27,901 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 02:40:27,985 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:40:27,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:40:27,991 INFO L168 Benchmark]: Toolchain (without parser) took 3597.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 942.0 MB in the beginning and 1.0 GB in the end (delta: -71.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:27,993 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:27,995 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1230.41 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 826.5 MB in the end (delta: 115.4 MB). Peak memory consumption was 115.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:28,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 209.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 826.5 MB in the beginning and 1.1 GB in the end (delta: -285.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:28,003 INFO L168 Benchmark]: Boogie Preprocessor took 57.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:28,003 INFO L168 Benchmark]: RCFGBuilder took 577.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:28,004 INFO L168 Benchmark]: TraceAbstraction took 1401.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:28,004 INFO L168 Benchmark]: Witness Printer took 114.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:28,012 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1230.41 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 826.5 MB in the end (delta: 115.4 MB). Peak memory consumption was 115.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 209.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 826.5 MB in the beginning and 1.1 GB in the end (delta: -285.8 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.26 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 577.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1401.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 11.5 GB. * Witness Printer took 114.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 961]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 968]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 976]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 974]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 960]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 975]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 984]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 959]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 967]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 983]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 990]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 11 error locations. SAFE Result, 1.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 104 SDtfs, 73 SDslu, 32 SDs, 0 SdLazy, 14 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 5 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 737 SizeOfPredicates, 5 NumberOfNonLiveVariables, 91 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...