./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan --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 Taipan --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=/tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan --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 Taipan --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 0.1.23-635dfa2 [2018-12-02 11:59:33,280 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 11:59:33,281 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 11:59:33,287 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 11:59:33,287 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 11:59:33,288 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 11:59:33,289 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 11:59:33,290 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 11:59:33,291 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 11:59:33,291 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 11:59:33,291 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 11:59:33,292 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 11:59:33,292 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 11:59:33,293 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 11:59:33,293 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 11:59:33,293 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 11:59:33,294 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 11:59:33,295 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 11:59:33,296 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 11:59:33,297 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 11:59:33,297 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 11:59:33,298 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 11:59:33,299 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 11:59:33,299 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 11:59:33,299 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 11:59:33,300 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 11:59:33,300 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 11:59:33,301 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 11:59:33,301 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 11:59:33,302 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 11:59:33,302 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 11:59:33,302 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 11:59:33,302 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 11:59:33,303 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 11:59:33,303 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 11:59:33,304 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 11:59:33,304 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 11:59:33,311 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 11:59:33,311 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 11:59:33,312 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 11:59:33,312 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 11:59:33,312 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 11:59:33,312 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 11:59:33,312 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 11:59:33,312 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 11:59:33,312 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 11:59:33,313 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 11:59:33,313 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 11:59:33,313 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 11:59:33,313 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 11:59:33,313 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 11:59:33,313 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 11:59:33,313 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 11:59:33,313 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 11:59:33,314 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 11:59:33,314 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 11:59:33,314 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 11:59:33,314 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 11:59:33,314 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 11:59:33,314 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 11:59:33,314 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 11:59:33,314 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 11:59:33,314 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 11:59:33,314 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 11:59:33,314 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 11:59:33,315 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 11:59:33,315 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 11:59:33,315 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 11:59:33,315 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 11:59:33,315 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 11:59:33,315 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 11:59:33,315 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 11:59:33,315 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 11:59:33,315 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan 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 -> Taipan 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 [2018-12-02 11:59:33,333 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 11:59:33,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 11:59:33,342 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 11:59:33,343 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 11:59:33,343 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 11:59:33,344 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2018-12-02 11:59:33,377 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/data/578f3c456/d6ecf407ab7c4483bea9d92e5c6b2e26/FLAG3073d73dd [2018-12-02 11:59:33,856 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 11:59:33,857 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2018-12-02 11:59:33,865 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/data/578f3c456/d6ecf407ab7c4483bea9d92e5c6b2e26/FLAG3073d73dd [2018-12-02 11:59:33,873 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/data/578f3c456/d6ecf407ab7c4483bea9d92e5c6b2e26 [2018-12-02 11:59:33,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 11:59:33,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 11:59:33,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 11:59:33,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 11:59:33,879 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 11:59:33,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:59:33" (1/1) ... [2018-12-02 11:59:33,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3354cf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:33, skipping insertion in model container [2018-12-02 11:59:33,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:59:33" (1/1) ... [2018-12-02 11:59:33,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 11:59:33,917 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 11:59:34,156 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:1668) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:208) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1320) 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:998) 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:2291) 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:665) 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:2291) 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:1640) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:208) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1320) 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:1271) 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:963) 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:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1342) 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:3446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2241) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:539) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-12-02 11:59:34,158 INFO L168 Benchmark]: Toolchain (without parser) took 282.30 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 11:59:34,159 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 11:59:34,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.74 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 11:59:34,160 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 280.74 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.3 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 0.1.23-635dfa2 [2018-12-02 11:59:35,238 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 11:59:35,239 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 11:59:35,245 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 11:59:35,246 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 11:59:35,246 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 11:59:35,247 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 11:59:35,248 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 11:59:35,249 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 11:59:35,249 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 11:59:35,250 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 11:59:35,250 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 11:59:35,251 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 11:59:35,252 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 11:59:35,252 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 11:59:35,253 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 11:59:35,253 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 11:59:35,254 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 11:59:35,256 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 11:59:35,256 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 11:59:35,257 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 11:59:35,257 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 11:59:35,258 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 11:59:35,258 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 11:59:35,259 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 11:59:35,259 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 11:59:35,259 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 11:59:35,260 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 11:59:35,260 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 11:59:35,261 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 11:59:35,261 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 11:59:35,262 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 11:59:35,262 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 11:59:35,262 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 11:59:35,263 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 11:59:35,263 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 11:59:35,263 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-02 11:59:35,273 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 11:59:35,273 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 11:59:35,274 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 11:59:35,274 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 11:59:35,274 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 11:59:35,275 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 11:59:35,275 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 11:59:35,275 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 11:59:35,275 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 11:59:35,275 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 11:59:35,276 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 11:59:35,276 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 11:59:35,276 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 11:59:35,276 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 11:59:35,276 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 11:59:35,277 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 11:59:35,277 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 11:59:35,277 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 11:59:35,277 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 11:59:35,277 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 11:59:35,277 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 11:59:35,277 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 11:59:35,278 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 11:59:35,278 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 11:59:35,278 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 11:59:35,278 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 11:59:35,278 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 11:59:35,278 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 11:59:35,279 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 11:59:35,279 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 11:59:35,279 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 11:59:35,279 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 11:59:35,279 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 11:59:35,279 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 11:59:35,279 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 11:59:35,280 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan 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 -> Taipan 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 [2018-12-02 11:59:35,303 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 11:59:35,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 11:59:35,312 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 11:59:35,313 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 11:59:35,313 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 11:59:35,313 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2018-12-02 11:59:35,347 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/data/dfae5dcb4/03c80cea817947f29ee570c0759de5b3/FLAG0c7c0a9b0 [2018-12-02 11:59:35,712 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 11:59:35,713 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4_true-unreach-call.i [2018-12-02 11:59:35,720 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/data/dfae5dcb4/03c80cea817947f29ee570c0759de5b3/FLAG0c7c0a9b0 [2018-12-02 11:59:36,087 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/data/dfae5dcb4/03c80cea817947f29ee570c0759de5b3 [2018-12-02 11:59:36,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 11:59:36,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 11:59:36,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 11:59:36,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 11:59:36,097 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 11:59:36,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:59:36" (1/1) ... [2018-12-02 11:59:36,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbd5eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:36, skipping insertion in model container [2018-12-02 11:59:36,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:59:36" (1/1) ... [2018-12-02 11:59:36,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 11:59:36,126 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 11:59:36,384 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 11:59:36,387 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 11:59:36,415 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 11:59:36,558 INFO L195 MainTranslator]: Completed translation [2018-12-02 11:59:36,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:36 WrapperNode [2018-12-02 11:59:36,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 11:59:36,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 11:59:36,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 11:59:36,559 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 11:59:36,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:36" (1/1) ... [2018-12-02 11:59:36,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:36" (1/1) ... [2018-12-02 11:59:36,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 11:59:36,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 11:59:36,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 11:59:36,618 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 11:59:36,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:36" (1/1) ... [2018-12-02 11:59:36,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:36" (1/1) ... [2018-12-02 11:59:36,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:36" (1/1) ... [2018-12-02 11:59:36,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:36" (1/1) ... [2018-12-02 11:59:36,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:36" (1/1) ... [2018-12-02 11:59:36,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:36" (1/1) ... [2018-12-02 11:59:36,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:36" (1/1) ... [2018-12-02 11:59:36,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 11:59:36,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 11:59:36,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 11:59:36,637 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 11:59:36,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/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 [2018-12-02 11:59:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 11:59:36,672 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 11:59:36,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 11:59:36,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 11:59:36,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 11:59:36,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 11:59:36,818 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 11:59:36,819 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 11:59:36,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:59:36 BoogieIcfgContainer [2018-12-02 11:59:36,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 11:59:36,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 11:59:36,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 11:59:36,822 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 11:59:36,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:59:36" (1/3) ... [2018-12-02 11:59:36,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4787e404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:59:36, skipping insertion in model container [2018-12-02 11:59:36,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:59:36" (2/3) ... [2018-12-02 11:59:36,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4787e404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:59:36, skipping insertion in model container [2018-12-02 11:59:36,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:59:36" (3/3) ... [2018-12-02 11:59:36,824 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp4_true-unreach-call.i [2018-12-02 11:59:36,832 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 11:59:36,836 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2018-12-02 11:59:36,845 INFO L257 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2018-12-02 11:59:36,861 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 11:59:36,861 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 11:59:36,861 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 11:59:36,861 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 11:59:36,861 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 11:59:36,862 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 11:59:36,862 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 11:59:36,862 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 11:59:36,862 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 11:59:36,872 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-12-02 11:59:36,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 11:59:36,875 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 11:59:36,875 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 11:59:36,876 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 11:59:36,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 11:59:36,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1381730395, now seen corresponding path program 1 times [2018-12-02 11:59:36,883 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 11:59:36,883 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/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 [2018-12-02 11:59:36,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 11:59:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:59:36,911 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 11:59:37,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:59:37,003 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 11:59:37,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 11:59:37,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 11:59:37,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 11:59:37,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 11:59:37,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:59:37,028 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2018-12-02 11:59:37,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 11:59:37,051 INFO L93 Difference]: Finished difference Result 80 states and 99 transitions. [2018-12-02 11:59:37,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 11:59:37,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-02 11:59:37,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 11:59:37,061 INFO L225 Difference]: With dead ends: 80 [2018-12-02 11:59:37,061 INFO L226 Difference]: Without dead ends: 36 [2018-12-02 11:59:37,064 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 [2018-12-02 11:59:37,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-02 11:59:37,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-12-02 11:59:37,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-02 11:59:37,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 35 transitions. [2018-12-02 11:59:37,089 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 35 transitions. Word has length 7 [2018-12-02 11:59:37,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 11:59:37,089 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 35 transitions. [2018-12-02 11:59:37,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 11:59:37,089 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions. [2018-12-02 11:59:37,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-02 11:59:37,089 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 11:59:37,089 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 11:59:37,090 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 11:59:37,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 11:59:37,090 INFO L82 PathProgramCache]: Analyzing trace with hash -652134129, now seen corresponding path program 1 times [2018-12-02 11:59:37,090 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 11:59:37,090 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/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 [2018-12-02 11:59:37,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 11:59:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:59:37,107 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 11:59:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:59:37,122 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 11:59:37,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 11:59:37,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 11:59:37,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 11:59:37,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 11:59:37,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:59:37,131 INFO L87 Difference]: Start difference. First operand 36 states and 35 transitions. Second operand 3 states. [2018-12-02 11:59:37,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 11:59:37,139 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2018-12-02 11:59:37,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 11:59:37,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-12-02 11:59:37,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 11:59:37,140 INFO L225 Difference]: With dead ends: 36 [2018-12-02 11:59:37,140 INFO L226 Difference]: Without dead ends: 32 [2018-12-02 11:59:37,141 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:59:37,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-02 11:59:37,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-12-02 11:59:37,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-02 11:59:37,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2018-12-02 11:59:37,144 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 11 [2018-12-02 11:59:37,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 11:59:37,144 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2018-12-02 11:59:37,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 11:59:37,144 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2018-12-02 11:59:37,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-02 11:59:37,145 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 11:59:37,145 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 11:59:37,145 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 11:59:37,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 11:59:37,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1586689671, now seen corresponding path program 1 times [2018-12-02 11:59:37,145 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 11:59:37,146 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-02 11:59:37,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 11:59:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:59:37,166 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 11:59:37,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:59:37,176 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 11:59:37,187 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 11:59:37,187 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 11:59:37,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 11:59:37,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 11:59:37,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:59:37,187 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 3 states. [2018-12-02 11:59:37,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 11:59:37,194 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2018-12-02 11:59:37,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 11:59:37,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-12-02 11:59:37,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 11:59:37,196 INFO L225 Difference]: With dead ends: 32 [2018-12-02 11:59:37,196 INFO L226 Difference]: Without dead ends: 26 [2018-12-02 11:59:37,196 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 [2018-12-02 11:59:37,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-02 11:59:37,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-12-02 11:59:37,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-02 11:59:37,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2018-12-02 11:59:37,198 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 14 [2018-12-02 11:59:37,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 11:59:37,199 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2018-12-02 11:59:37,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 11:59:37,199 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2018-12-02 11:59:37,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 11:59:37,199 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 11:59:37,199 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 11:59:37,200 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 11:59:37,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 11:59:37,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1342669981, now seen corresponding path program 1 times [2018-12-02 11:59:37,200 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 11:59:37,201 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/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 [2018-12-02 11:59:37,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 11:59:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:59:37,224 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 11:59:37,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:59:37,234 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 11:59:37,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 11:59:37,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 11:59:37,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 11:59:37,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 11:59:37,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:59:37,242 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 3 states. [2018-12-02 11:59:37,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 11:59:37,247 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2018-12-02 11:59:37,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 11:59:37,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-12-02 11:59:37,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 11:59:37,248 INFO L225 Difference]: With dead ends: 26 [2018-12-02 11:59:37,248 INFO L226 Difference]: Without dead ends: 22 [2018-12-02 11:59:37,248 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:59:37,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-12-02 11:59:37,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-12-02 11:59:37,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-12-02 11:59:37,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-12-02 11:59:37,249 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 18 [2018-12-02 11:59:37,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 11:59:37,249 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-12-02 11:59:37,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 11:59:37,250 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-12-02 11:59:37,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 11:59:37,250 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 11:59:37,250 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 11:59:37,250 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 11:59:37,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 11:59:37,250 INFO L82 PathProgramCache]: Analyzing trace with hash -446867057, now seen corresponding path program 1 times [2018-12-02 11:59:37,251 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 11:59:37,251 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/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 [2018-12-02 11:59:37,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 11:59:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 11:59:37,273 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 11:59:37,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 11:59:37,292 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 11:59:37,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 11:59:37,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 11:59:37,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 11:59:37,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 11:59:37,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:59:37,299 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 3 states. [2018-12-02 11:59:37,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 11:59:37,300 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-12-02 11:59:37,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 11:59:37,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-12-02 11:59:37,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 11:59:37,301 INFO L225 Difference]: With dead ends: 22 [2018-12-02 11:59:37,301 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 11:59:37,301 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 11:59:37,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 11:59:37,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 11:59:37,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 11:59:37,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 11:59:37,301 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-12-02 11:59:37,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 11:59:37,302 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 11:59:37,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 11:59:37,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 11:59:37,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 11:59:37,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 11:59:37,328 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-02 11:59:37,328 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 11:59:37,329 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point L960(line 960) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point L960-2(lines 954 991) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 953 991) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point L961(line 961) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point L961-2(line 961) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point L990(line 990) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point L990-1(line 990) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point L990-3(lines 953 991) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 959) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 984) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point L974(line 974) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point L974-1(line 974) no Hoare annotation was computed. [2018-12-02 11:59:37,329 INFO L448 ceAbstractionStarter]: For program point L974-3(lines 954 991) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 983) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 960) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 990) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point L983(line 983) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 967) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point L983-1(line 983) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point L983-3(lines 954 991) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 968) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 976) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point L975(line 975) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point L975-2(lines 954 991) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point L967(line 967) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point L967-1(line 967) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point L967-3(lines 954 991) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 974) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point L959(line 959) no Hoare annotation was computed. [2018-12-02 11:59:37,330 INFO L448 ceAbstractionStarter]: For program point L959-1(line 959) no Hoare annotation was computed. [2018-12-02 11:59:37,331 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 953 991) the Hoare annotation is: true [2018-12-02 11:59:37,331 INFO L448 ceAbstractionStarter]: For program point L959-3(lines 954 991) no Hoare annotation was computed. [2018-12-02 11:59:37,331 INFO L448 ceAbstractionStarter]: For program point L984(line 984) no Hoare annotation was computed. [2018-12-02 11:59:37,331 INFO L448 ceAbstractionStarter]: For program point L984-2(line 984) no Hoare annotation was computed. [2018-12-02 11:59:37,331 INFO L448 ceAbstractionStarter]: For program point L976(line 976) no Hoare annotation was computed. [2018-12-02 11:59:37,331 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 961) no Hoare annotation was computed. [2018-12-02 11:59:37,331 INFO L448 ceAbstractionStarter]: For program point L976-2(line 976) no Hoare annotation was computed. [2018-12-02 11:59:37,331 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 975) no Hoare annotation was computed. [2018-12-02 11:59:37,331 INFO L448 ceAbstractionStarter]: For program point L968(line 968) no Hoare annotation was computed. [2018-12-02 11:59:37,331 INFO L448 ceAbstractionStarter]: For program point L968-2(line 968) no Hoare annotation was computed. [2018-12-02 11:59:37,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:59:37 BoogieIcfgContainer [2018-12-02 11:59:37,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 11:59:37,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 11:59:37,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 11:59:37,333 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 11:59:37,333 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:59:36" (3/4) ... [2018-12-02 11:59:37,335 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 11:59:37,340 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 11:59:37,340 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 11:59:37,342 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 11:59:37,343 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 11:59:37,343 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 11:59:37,374 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0eb966dc-9e2d-49f1-ac50-63ce5ddd74f6/bin-2019/utaipan/witness.graphml [2018-12-02 11:59:37,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 11:59:37,375 INFO L168 Benchmark]: Toolchain (without parser) took 1283.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 938.0 MB in the beginning and 1.0 GB in the end (delta: -92.2 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2018-12-02 11:59:37,375 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 11:59:37,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.09 ms. Allocated memory is still 1.0 GB. Free memory was 938.0 MB in the beginning and 825.3 MB in the end (delta: 112.7 MB). Peak memory consumption was 112.7 MB. Max. memory is 11.5 GB. [2018-12-02 11:59:37,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 825.3 MB in the beginning and 1.1 GB in the end (delta: -311.8 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-12-02 11:59:37,376 INFO L168 Benchmark]: Boogie Preprocessor took 18.45 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. [2018-12-02 11:59:37,376 INFO L168 Benchmark]: RCFGBuilder took 182.83 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: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2018-12-02 11:59:37,376 INFO L168 Benchmark]: TraceAbstraction took 513.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 11.5 GB. [2018-12-02 11:59:37,376 INFO L168 Benchmark]: Witness Printer took 41.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 11.5 GB. [2018-12-02 11:59:37,378 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 466.09 ms. Allocated memory is still 1.0 GB. Free memory was 938.0 MB in the beginning and 825.3 MB in the end (delta: 112.7 MB). Peak memory consumption was 112.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 825.3 MB in the beginning and 1.1 GB in the end (delta: -311.8 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.45 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. * RCFGBuilder took 182.83 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: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 513.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 11.5 GB. * Witness Printer took 41.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 960]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 961]: 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: 967]: 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: 959]: 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: 984]: 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: 974]: 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 3 procedures, 46 locations, 11 error locations. SAFE Result, 0.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 125 SDtfs, 72 SDslu, 58 SDs, 0 SdLazy, 10 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 1245 SizeOfPredicates, 5 NumberOfNonLiveVariables, 131 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...