./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-div1_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-div1_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/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 bab8a0d04d8f61bea19634c32fd38a52b6fbece9 ...................................................................................................................................................................................... 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_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-div1_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/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 bab8a0d04d8f61bea19634c32fd38a52b6fbece9 ................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:17:23,100 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:17:23,101 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:17:23,108 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:17:23,108 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:17:23,109 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:17:23,110 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:17:23,111 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:17:23,112 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:17:23,112 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:17:23,113 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:17:23,113 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:17:23,114 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:17:23,114 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:17:23,115 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:17:23,116 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:17:23,116 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:17:23,117 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:17:23,118 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:17:23,119 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:17:23,120 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:17:23,121 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:17:23,122 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:17:23,122 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:17:23,122 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:17:23,123 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:17:23,124 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:17:23,124 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:17:23,125 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:17:23,125 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:17:23,126 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:17:23,126 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:17:23,126 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:17:23,126 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:17:23,127 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:17:23,127 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:17:23,128 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 09:17:23,136 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:17:23,136 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:17:23,137 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:17:23,137 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 09:17:23,137 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 09:17:23,137 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 09:17:23,137 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 09:17:23,137 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 09:17:23,138 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 09:17:23,138 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 09:17:23,138 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 09:17:23,138 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 09:17:23,138 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 09:17:23,138 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:17:23,139 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:17:23,139 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:17:23,139 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:17:23,139 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:17:23,139 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:17:23,139 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:17:23,139 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:17:23,140 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:17:23,140 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:17:23,140 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:17:23,140 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:17:23,140 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:17:23,140 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:17:23,140 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:17:23,140 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:17:23,141 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:17:23,141 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:17:23,141 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:17:23,141 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:17:23,141 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 09:17:23,141 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:17:23,141 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:17:23,141 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 09:17:23,142 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_1cc327cb-a0ce-45d9-b602-367807721a7b/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 -> bab8a0d04d8f61bea19634c32fd38a52b6fbece9 [2018-11-18 09:17:23,163 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:17:23,172 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:17:23,175 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:17:23,176 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:17:23,176 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:17:23,177 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-div1_true-unreach-call.i [2018-11-18 09:17:23,221 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/data/5b2c3e40b/33abfc082ba645d5a87f8f591e4c0662/FLAGc4ed2a67c [2018-11-18 09:17:23,581 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:17:23,581 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/sv-benchmarks/c/floats-cbmc-regression/float-div1_true-unreach-call.i [2018-11-18 09:17:23,590 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/data/5b2c3e40b/33abfc082ba645d5a87f8f591e4c0662/FLAGc4ed2a67c [2018-11-18 09:17:23,601 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/data/5b2c3e40b/33abfc082ba645d5a87f8f591e4c0662 [2018-11-18 09:17:23,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:17:23,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:17:23,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:17:23,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:17:23,608 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:17:23,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:17:23" (1/1) ... [2018-11-18 09:17:23,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dd3797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:23, skipping insertion in model container [2018-11-18 09:17:23,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:17:23" (1/1) ... [2018-11-18 09:17:23,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:17:23,651 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:17:23,928 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:838) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1298) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1302) 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:994) 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:2129) 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:661) 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:2129) 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:662) 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:661) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.dispatchDecaySwitchToRValueFunctionArgument(ExpressionResultTransformer.java:113) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleVerifierAssume(StandardFunctionHandler.java:1270) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:206) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1302) 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:1253) 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:959) 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:1324) 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:3277) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2079) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:535) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 09:17:23,931 INFO L168 Benchmark]: Toolchain (without parser) took 327.12 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 943.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:17:23,932 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:17:23,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.22 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 943.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:17:23,934 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 325.22 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 943.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 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:838) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 09:17:25,116 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:17:25,117 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:17:25,126 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:17:25,126 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:17:25,126 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:17:25,127 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:17:25,128 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:17:25,129 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:17:25,130 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:17:25,130 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:17:25,131 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:17:25,131 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:17:25,132 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:17:25,133 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:17:25,133 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:17:25,134 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:17:25,135 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:17:25,136 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:17:25,137 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:17:25,137 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:17:25,138 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:17:25,140 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:17:25,140 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:17:25,140 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:17:25,141 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:17:25,141 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:17:25,142 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:17:25,142 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:17:25,143 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:17:25,143 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:17:25,144 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:17:25,144 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:17:25,144 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:17:25,144 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:17:25,145 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:17:25,145 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 09:17:25,155 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:17:25,155 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:17:25,156 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:17:25,156 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 09:17:25,156 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 09:17:25,156 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 09:17:25,156 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 09:17:25,156 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 09:17:25,156 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 09:17:25,157 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 09:17:25,157 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:17:25,157 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:17:25,157 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:17:25,157 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:17:25,158 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:17:25,158 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:17:25,158 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:17:25,158 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 09:17:25,158 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 09:17:25,158 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:17:25,158 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:17:25,158 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:17:25,159 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:17:25,159 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:17:25,159 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:17:25,159 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:17:25,159 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:17:25,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:17:25,159 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:17:25,160 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:17:25,160 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:17:25,160 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 09:17:25,160 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:17:25,160 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 09:17:25,160 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 09:17:25,160 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_1cc327cb-a0ce-45d9-b602-367807721a7b/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 -> bab8a0d04d8f61bea19634c32fd38a52b6fbece9 [2018-11-18 09:17:25,189 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:17:25,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:17:25,200 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:17:25,201 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:17:25,202 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:17:25,202 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-div1_true-unreach-call.i [2018-11-18 09:17:25,248 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/data/0e2934eba/47a497ded4d04473a8976655f459ceb2/FLAGe86f034c3 [2018-11-18 09:17:25,691 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:17:25,692 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/sv-benchmarks/c/floats-cbmc-regression/float-div1_true-unreach-call.i [2018-11-18 09:17:25,699 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/data/0e2934eba/47a497ded4d04473a8976655f459ceb2/FLAGe86f034c3 [2018-11-18 09:17:25,706 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/data/0e2934eba/47a497ded4d04473a8976655f459ceb2 [2018-11-18 09:17:25,708 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:17:25,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:17:25,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:17:25,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:17:25,713 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:17:25,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:17:25" (1/1) ... [2018-11-18 09:17:25,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7962ae87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:25, skipping insertion in model container [2018-11-18 09:17:25,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:17:25" (1/1) ... [2018-11-18 09:17:25,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:17:25,755 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:17:26,147 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:17:26,151 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:17:26,182 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:17:26,382 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:17:26,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:26 WrapperNode [2018-11-18 09:17:26,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:17:26,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:17:26,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:17:26,384 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:17:26,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:26" (1/1) ... [2018-11-18 09:17:26,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:26" (1/1) ... [2018-11-18 09:17:26,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:17:26,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:17:26,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:17:26,457 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:17:26,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:26" (1/1) ... [2018-11-18 09:17:26,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:26" (1/1) ... [2018-11-18 09:17:26,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:26" (1/1) ... [2018-11-18 09:17:26,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:26" (1/1) ... [2018-11-18 09:17:26,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:26" (1/1) ... [2018-11-18 09:17:26,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:26" (1/1) ... [2018-11-18 09:17:26,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:26" (1/1) ... [2018-11-18 09:17:26,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:17:26,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:17:26,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:17:26,474 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:17:26,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/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 [2018-11-18 09:17:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure inductiveStepHunt [2018-11-18 09:17:26,512 INFO L138 BoogieDeclarations]: Found implementation of procedure inductiveStepHunt [2018-11-18 09:17:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure simplifiedInductiveStepHunt [2018-11-18 09:17:26,513 INFO L138 BoogieDeclarations]: Found implementation of procedure simplifiedInductiveStepHunt [2018-11-18 09:17:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:17:26,513 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:17:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:17:26,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:17:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:17:26,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:17:29,000 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:17:29,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:17:29 BoogieIcfgContainer [2018-11-18 09:17:29,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:17:29,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:17:29,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:17:29,003 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:17:29,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:17:25" (1/3) ... [2018-11-18 09:17:29,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b9b4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:17:29, skipping insertion in model container [2018-11-18 09:17:29,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:17:26" (2/3) ... [2018-11-18 09:17:29,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b9b4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:17:29, skipping insertion in model container [2018-11-18 09:17:29,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:17:29" (3/3) ... [2018-11-18 09:17:29,005 INFO L112 eAbstractionObserver]: Analyzing ICFG float-div1_true-unreach-call.i [2018-11-18 09:17:29,011 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:17:29,015 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-18 09:17:29,028 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-18 09:17:29,046 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:17:29,046 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:17:29,046 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:17:29,046 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:17:29,046 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:17:29,047 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:17:29,047 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:17:29,047 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:17:29,047 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:17:29,057 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-11-18 09:17:29,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 09:17:29,061 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:17:29,061 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:17:29,062 INFO L423 AbstractCegarLoop]: === Iteration 1 === [inductiveStepHuntErr0ASSERT_VIOLATIONERROR_FUNCTION, simplifiedInductiveStepHuntErr0ASSERT_VIOLATIONERROR_FUNCTION, simplifiedInductiveStepHuntErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:17:29,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:17:29,065 INFO L82 PathProgramCache]: Analyzing trace with hash 2143238314, now seen corresponding path program 1 times [2018-11-18 09:17:29,068 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 09:17:29,068 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/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 [2018-11-18 09:17:29,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:17:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:17:29,523 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:17:31,770 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_4 (_ FloatingPoint 8 24))) (and (= (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse0 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_4 (fp.div roundNearestTiesToEven .cse0 v_prenex_4)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) c_inductiveStepHunt_~oneAfter~0) (fp.lt ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) v_prenex_4) (not (fp.isNaN v_prenex_4)) (fp.isNormal v_prenex_4) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_4) (not (fp.isInfinite v_prenex_4)))) (exists ((v_prenex_5 (_ FloatingPoint 8 24))) (and (not (fp.isInfinite v_prenex_5)) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_5) (fp.isNormal v_prenex_5) (= (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse1 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_5 (fp.div roundNearestTiesToEven .cse1 v_prenex_5)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) c_inductiveStepHunt_~oneAfter~0) (not (fp.isSubnormal v_prenex_5)) (fp.lt ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) v_prenex_5) (not (fp.isNaN v_prenex_5)))) (exists ((v_prenex_3 (_ FloatingPoint 8 24))) (and (not (fp.isInfinite v_prenex_3)) (not (fp.isNaN v_prenex_3)) (= c_inductiveStepHunt_~oneAfter~0 (let ((.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse2 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_3 (fp.div roundNearestTiesToEven .cse2 v_prenex_3)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32)))))) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_3) (fp.lt ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) v_prenex_3) (fp.isNormal v_prenex_3))) (exists ((v_prenex_2 (_ FloatingPoint 8 24))) (and (fp.lt ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) v_prenex_2) (not (fp.isNaN v_prenex_2)) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_2) (fp.isSubnormal v_prenex_2) (not (fp.isInfinite v_prenex_2)) (= (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse3 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_2 (fp.div roundNearestTiesToEven .cse3 v_prenex_2)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) c_inductiveStepHunt_~oneAfter~0) (fp.isNormal v_prenex_2)))) is different from false [2018-11-18 09:17:33,852 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_4 (_ FloatingPoint 8 24))) (and (= (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse0 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_4 (fp.div roundNearestTiesToEven .cse0 v_prenex_4)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) c_inductiveStepHunt_~oneAfter~0) (fp.lt ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) v_prenex_4) (not (fp.isNaN v_prenex_4)) (fp.isNormal v_prenex_4) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_4) (not (fp.isInfinite v_prenex_4)))) (exists ((v_prenex_5 (_ FloatingPoint 8 24))) (and (not (fp.isInfinite v_prenex_5)) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_5) (fp.isNormal v_prenex_5) (= (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse1 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_5 (fp.div roundNearestTiesToEven .cse1 v_prenex_5)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) c_inductiveStepHunt_~oneAfter~0) (not (fp.isSubnormal v_prenex_5)) (fp.lt ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) v_prenex_5) (not (fp.isNaN v_prenex_5)))) (exists ((v_prenex_3 (_ FloatingPoint 8 24))) (and (not (fp.isInfinite v_prenex_3)) (not (fp.isNaN v_prenex_3)) (= c_inductiveStepHunt_~oneAfter~0 (let ((.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse2 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_3 (fp.div roundNearestTiesToEven .cse2 v_prenex_3)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32)))))) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_3) (fp.lt ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) v_prenex_3) (fp.isNormal v_prenex_3))) (exists ((v_prenex_2 (_ FloatingPoint 8 24))) (and (fp.lt ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)) v_prenex_2) (not (fp.isNaN v_prenex_2)) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_2) (fp.isSubnormal v_prenex_2) (not (fp.isInfinite v_prenex_2)) (= (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse3 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_2 (fp.div roundNearestTiesToEven .cse3 v_prenex_2)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) c_inductiveStepHunt_~oneAfter~0) (fp.isNormal v_prenex_2)))) is different from true [2018-11-18 09:17:50,752 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_4 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (fp.lt .cse0 v_prenex_4) (not (fp.isNaN v_prenex_4)) (fp.isNormal v_prenex_4) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_4) (not (fp.isInfinite v_prenex_4)) (not (fp.gt (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse1 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_4 (fp.div roundNearestTiesToEven .cse1 v_prenex_4)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse0))))) (exists ((v_prenex_5 (_ FloatingPoint 8 24))) (let ((.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.isInfinite v_prenex_5)) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_5) (fp.isNormal v_prenex_5) (not (fp.isSubnormal v_prenex_5)) (fp.lt .cse2 v_prenex_5) (not (fp.gt (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse3 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_5 (fp.div roundNearestTiesToEven .cse3 v_prenex_5)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse2)) (not (fp.isNaN v_prenex_5))))) (exists ((v_prenex_3 (_ FloatingPoint 8 24))) (let ((.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.isInfinite v_prenex_3)) (not (fp.isNaN v_prenex_3)) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_3) (fp.lt .cse4 v_prenex_3) (fp.isNormal v_prenex_3) (not (fp.gt (let ((.cse5 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse5 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_3 (fp.div roundNearestTiesToEven .cse5 v_prenex_3)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse4)))))) is different from false [2018-11-18 09:17:52,820 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_4 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (fp.lt .cse0 v_prenex_4) (not (fp.isNaN v_prenex_4)) (fp.isNormal v_prenex_4) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_4) (not (fp.isInfinite v_prenex_4)) (not (fp.gt (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse1 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_4 (fp.div roundNearestTiesToEven .cse1 v_prenex_4)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse0))))) (exists ((v_prenex_5 (_ FloatingPoint 8 24))) (let ((.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.isInfinite v_prenex_5)) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_5) (fp.isNormal v_prenex_5) (not (fp.isSubnormal v_prenex_5)) (fp.lt .cse2 v_prenex_5) (not (fp.gt (let ((.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse3 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_5 (fp.div roundNearestTiesToEven .cse3 v_prenex_5)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse2)) (not (fp.isNaN v_prenex_5))))) (exists ((v_prenex_3 (_ FloatingPoint 8 24))) (let ((.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.isInfinite v_prenex_3)) (not (fp.isNaN v_prenex_3)) (fp.leq ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) v_prenex_3) (fp.lt .cse4 v_prenex_3) (fp.isNormal v_prenex_3) (not (fp.gt (let ((.cse5 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse5 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven v_prenex_3 (fp.div roundNearestTiesToEven .cse5 v_prenex_3)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse4)))))) is different from true [2018-11-18 09:17:52,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:17:52,823 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:17:52,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:17:52,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:17:52,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:17:52,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:17:52,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-11-18 09:17:52,846 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 4 states. [2018-11-18 09:17:52,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:17:52,857 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2018-11-18 09:17:52,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:17:52,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-18 09:17:52,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:17:52,866 INFO L225 Difference]: With dead ends: 42 [2018-11-18 09:17:52,866 INFO L226 Difference]: Without dead ends: 16 [2018-11-18 09:17:52,868 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-11-18 09:17:52,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-18 09:17:52,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 09:17:52,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 09:17:52,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2018-11-18 09:17:52,893 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 9 [2018-11-18 09:17:52,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:17:52,894 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2018-11-18 09:17:52,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:17:52,894 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2018-11-18 09:17:52,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 09:17:52,894 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:17:52,894 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:17:52,895 INFO L423 AbstractCegarLoop]: === Iteration 2 === [inductiveStepHuntErr0ASSERT_VIOLATIONERROR_FUNCTION, simplifiedInductiveStepHuntErr0ASSERT_VIOLATIONERROR_FUNCTION, simplifiedInductiveStepHuntErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:17:52,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:17:52,895 INFO L82 PathProgramCache]: Analyzing trace with hash -462491116, now seen corresponding path program 1 times [2018-11-18 09:17:52,895 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 09:17:52,896 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/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 [2018-11-18 09:17:52,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:17:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:17:53,356 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:17:54,694 WARN L180 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 09:17:54,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:17:54,923 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 09:17:54,941 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:17:54,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:17:54,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:17:54,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:17:54,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:17:54,943 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 3 states. [2018-11-18 09:17:54,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:17:54,944 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-11-18 09:17:54,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:17:54,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 09:17:54,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:17:54,945 INFO L225 Difference]: With dead ends: 16 [2018-11-18 09:17:54,945 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 09:17:54,946 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:17:54,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 09:17:54,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 09:17:54,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 09:17:54,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 09:17:54,947 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-18 09:17:54,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:17:54,947 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:17:54,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:17:54,947 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 09:17:54,947 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:17:54,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 09:17:54,979 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 09:17:54,980 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:17:54,980 INFO L425 ceAbstractionStarter]: For program point L370-1(line 370) no Hoare annotation was computed. [2018-11-18 09:17:54,980 INFO L425 ceAbstractionStarter]: For program point L370-3(lines 363 371) no Hoare annotation was computed. [2018-11-18 09:17:54,980 INFO L428 ceAbstractionStarter]: At program point inductiveStepHuntENTRY(lines 363 371) the Hoare annotation is: true [2018-11-18 09:17:54,980 INFO L425 ceAbstractionStarter]: For program point inductiveStepHuntErr0ASSERT_VIOLATIONERROR_FUNCTION(line 370) no Hoare annotation was computed. [2018-11-18 09:17:54,980 INFO L425 ceAbstractionStarter]: For program point inductiveStepHuntEXIT(lines 363 371) no Hoare annotation was computed. [2018-11-18 09:17:54,980 INFO L425 ceAbstractionStarter]: For program point L370(line 370) no Hoare annotation was computed. [2018-11-18 09:17:54,980 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:17:54,980 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 09:17:54,981 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:17:54,981 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:17:54,981 INFO L425 ceAbstractionStarter]: For program point L384(line 384) no Hoare annotation was computed. [2018-11-18 09:17:54,981 INFO L428 ceAbstractionStarter]: At program point L383(line 383) the Hoare annotation is: true [2018-11-18 09:17:54,981 INFO L428 ceAbstractionStarter]: At program point L383-1(line 383) the Hoare annotation is: true [2018-11-18 09:17:54,981 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 380 386) the Hoare annotation is: true [2018-11-18 09:17:54,981 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 380 386) no Hoare annotation was computed. [2018-11-18 09:17:54,981 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 380 386) no Hoare annotation was computed. [2018-11-18 09:17:54,981 INFO L425 ceAbstractionStarter]: For program point L378(line 378) no Hoare annotation was computed. [2018-11-18 09:17:54,981 INFO L425 ceAbstractionStarter]: For program point L377(line 377) no Hoare annotation was computed. [2018-11-18 09:17:54,982 INFO L425 ceAbstractionStarter]: For program point simplifiedInductiveStepHuntErr0ASSERT_VIOLATIONERROR_FUNCTION(line 377) no Hoare annotation was computed. [2018-11-18 09:17:54,982 INFO L425 ceAbstractionStarter]: For program point L377-1(line 377) no Hoare annotation was computed. [2018-11-18 09:17:54,982 INFO L425 ceAbstractionStarter]: For program point L378-2(lines 372 379) no Hoare annotation was computed. [2018-11-18 09:17:54,982 INFO L425 ceAbstractionStarter]: For program point L377-3(lines 373 379) no Hoare annotation was computed. [2018-11-18 09:17:54,982 INFO L425 ceAbstractionStarter]: For program point simplifiedInductiveStepHuntEXIT(lines 372 379) no Hoare annotation was computed. [2018-11-18 09:17:54,982 INFO L425 ceAbstractionStarter]: For program point simplifiedInductiveStepHuntErr1ASSERT_VIOLATIONERROR_FUNCTION(line 378) no Hoare annotation was computed. [2018-11-18 09:17:54,982 INFO L428 ceAbstractionStarter]: At program point simplifiedInductiveStepHuntENTRY(lines 372 379) the Hoare annotation is: true [2018-11-18 09:17:54,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:17:54 BoogieIcfgContainer [2018-11-18 09:17:54,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:17:54,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:17:54,984 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:17:54,984 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:17:54,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:17:29" (3/4) ... [2018-11-18 09:17:54,987 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:17:54,991 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 09:17:54,991 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure inductiveStepHunt [2018-11-18 09:17:54,991 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 09:17:54,991 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure simplifiedInductiveStepHunt [2018-11-18 09:17:54,994 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 09:17:54,994 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 09:17:54,994 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 09:17:55,019 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1cc327cb-a0ce-45d9-b602-367807721a7b/bin-2019/utaipan/witness.graphml [2018-11-18 09:17:55,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:17:55,019 INFO L168 Benchmark]: Toolchain (without parser) took 29310.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -112.7 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:17:55,020 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:17:55,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.41 ms. Allocated memory is still 1.0 GB. Free memory was 945.2 MB in the beginning and 837.8 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:17:55,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 837.8 MB in the beginning and 1.1 GB in the end (delta: -297.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:17:55,021 INFO L168 Benchmark]: Boogie Preprocessor took 16.79 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:17:55,021 INFO L168 Benchmark]: RCFGBuilder took 2527.14 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:17:55,021 INFO L168 Benchmark]: TraceAbstraction took 25982.77 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: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:17:55,022 INFO L168 Benchmark]: Witness Printer took 34.54 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: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:17:55,024 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 673.41 ms. Allocated memory is still 1.0 GB. Free memory was 945.2 MB in the beginning and 837.8 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 837.8 MB in the beginning and 1.1 GB in the end (delta: -297.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.79 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2527.14 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25982.77 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: 49.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 11.5 GB. * Witness Printer took 34.54 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: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 370]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 377]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 378]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 27 locations, 3 error locations. SAFE Result, 25.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 SDtfs, 0 SDslu, 11 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 10 NumberOfFragments, 8 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 24.9s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 4 QuantifiedInterpolants, 3224 SizeOfPredicates, 8 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...