./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float19.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float19.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb866a5cacd669e678f08014c34cb9831bc85cc9 ........................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float19.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb866a5cacd669e678f08014c34cb9831bc85cc9 ................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:55:57,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:55:57,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:55:57,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:55:57,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:55:57,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:55:57,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:55:57,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:55:57,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:55:57,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:55:57,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:55:57,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:55:57,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:55:57,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:55:57,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:55:57,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:55:57,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:55:57,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:55:57,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:55:57,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:55:57,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:55:57,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:55:57,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:55:57,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:55:57,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:55:57,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:55:57,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:55:57,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:55:57,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:55:57,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:55:57,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:55:57,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:55:57,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:55:57,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:55:57,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:55:57,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:55:57,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:55:57,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:55:57,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:55:57,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:55:57,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:55:57,596 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:55:57,643 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:55:57,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:55:57,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:55:57,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:55:57,647 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:55:57,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:55:57,648 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:55:57,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:55:57,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:55:57,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:55:57,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:55:57,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:55:57,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:55:57,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:55:57,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:55:57,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:55:57,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:55:57,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:55:57,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:55:57,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:55:57,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:55:57,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:55:57,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:55:57,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:55:57,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:55:57,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:55:57,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:55:57,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:55:57,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:55:57,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb866a5cacd669e678f08014c34cb9831bc85cc9 [2020-11-30 00:55:58,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:55:58,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:55:58,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:55:58,092 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:55:58,093 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:55:58,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float19.i [2020-11-30 00:55:58,205 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/data/305474b3c/a080e056ddce4b8ca1a4f0b6385ffbfd/FLAG1e5f7eaa0 [2020-11-30 00:55:58,953 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:55:58,954 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/sv-benchmarks/c/floats-cbmc-regression/float19.i [2020-11-30 00:55:58,982 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/data/305474b3c/a080e056ddce4b8ca1a4f0b6385ffbfd/FLAG1e5f7eaa0 [2020-11-30 00:55:59,204 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/data/305474b3c/a080e056ddce4b8ca1a4f0b6385ffbfd [2020-11-30 00:55:59,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:55:59,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:55:59,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:59,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:55:59,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:55:59,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:59" (1/1) ... [2020-11-30 00:55:59,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@113f21e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:59, skipping insertion in model container [2020-11-30 00:55:59,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:59" (1/1) ... [2020-11-30 00:55:59,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:55:59,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:56:00,093 FATAL L? ?]: 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: isinf at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1690) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) 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:1080) 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:2342) 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:2342) 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:2342) 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:1569) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) 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.visit(CHandler.java:1577) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1423) 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:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) 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:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-30 00:56:00,108 INFO L168 Benchmark]: Toolchain (without parser) took 896.42 ms. Allocated memory is still 88.1 MB. Free memory was 54.2 MB in the beginning and 64.6 MB in the end (delta: -10.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:00,111 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 88.1 MB. Free memory was 61.6 MB in the beginning and 61.6 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:56:00,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 893.10 ms. Allocated memory is still 88.1 MB. Free memory was 54.0 MB in the beginning and 64.6 MB in the end (delta: -10.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:00,117 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 88.1 MB. Free memory was 61.6 MB in the beginning and 61.6 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 893.10 ms. Allocated memory is still 88.1 MB. Free memory was 54.0 MB in the beginning and 64.6 MB in the end (delta: -10.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:56:03,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:56:03,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:56:03,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:56:03,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:56:03,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:56:03,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:56:03,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:56:03,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:56:03,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:56:03,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:56:03,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:56:03,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:56:03,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:56:03,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:56:03,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:56:03,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:56:03,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:56:03,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:56:03,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:56:03,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:56:03,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:56:03,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:56:03,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:56:03,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:56:03,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:56:03,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:56:03,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:56:03,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:56:03,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:56:03,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:56:03,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:56:03,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:56:03,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:56:03,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:56:03,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:56:03,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:56:03,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:56:03,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:56:03,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:56:03,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:56:03,290 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:56:03,341 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:56:03,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:56:03,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:56:03,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:56:03,347 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:56:03,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:56:03,348 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:56:03,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:56:03,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:56:03,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:56:03,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:56:03,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:56:03,352 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:56:03,352 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:56:03,353 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:56:03,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:56:03,354 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:56:03,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:56:03,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:56:03,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:56:03,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:56:03,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:56:03,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:56:03,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:56:03,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:56:03,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:56:03,358 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:56:03,358 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:56:03,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:56:03,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:56:03,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:56:03,359 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb866a5cacd669e678f08014c34cb9831bc85cc9 [2020-11-30 00:56:03,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:56:03,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:56:03,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:56:03,950 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:56:03,951 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:56:03,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float19.i [2020-11-30 00:56:04,045 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/data/4092000c9/edcf457907ff4b67ac100e5abae78b65/FLAGb374fe20c [2020-11-30 00:56:04,861 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:56:04,862 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/sv-benchmarks/c/floats-cbmc-regression/float19.i [2020-11-30 00:56:04,891 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/data/4092000c9/edcf457907ff4b67ac100e5abae78b65/FLAGb374fe20c [2020-11-30 00:56:05,113 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/data/4092000c9/edcf457907ff4b67ac100e5abae78b65 [2020-11-30 00:56:05,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:56:05,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:56:05,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:56:05,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:56:05,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:56:05,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:56:05" (1/1) ... [2020-11-30 00:56:05,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac72651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:05, skipping insertion in model container [2020-11-30 00:56:05,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:56:05" (1/1) ... [2020-11-30 00:56:05,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:56:05,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:56:06,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:56:06,157 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:56:06,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:56:06,663 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:56:06,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:06 WrapperNode [2020-11-30 00:56:06,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:56:06,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:56:06,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:56:06,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:56:06,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:06" (1/1) ... [2020-11-30 00:56:06,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:06" (1/1) ... [2020-11-30 00:56:06,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:56:06,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:56:06,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:56:06,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:56:06,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:06" (1/1) ... [2020-11-30 00:56:06,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:06" (1/1) ... [2020-11-30 00:56:06,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:06" (1/1) ... [2020-11-30 00:56:06,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:06" (1/1) ... [2020-11-30 00:56:06,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:06" (1/1) ... [2020-11-30 00:56:06,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:06" (1/1) ... [2020-11-30 00:56:06,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:06" (1/1) ... [2020-11-30 00:56:06,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:56:06,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:56:06,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:56:06,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:56:06,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/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 [2020-11-30 00:56:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:56:06,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:56:06,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:56:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:56:07,473 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:56:07,473 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-30 00:56:07,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:56:07 BoogieIcfgContainer [2020-11-30 00:56:07,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:56:07,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:56:07,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:56:07,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:56:07,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:56:05" (1/3) ... [2020-11-30 00:56:07,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e251ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:56:07, skipping insertion in model container [2020-11-30 00:56:07,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:06" (2/3) ... [2020-11-30 00:56:07,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e251ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:56:07, skipping insertion in model container [2020-11-30 00:56:07,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:56:07" (3/3) ... [2020-11-30 00:56:07,496 INFO L111 eAbstractionObserver]: Analyzing ICFG float19.i [2020-11-30 00:56:07,514 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:56:07,543 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:56:07,565 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:56:07,605 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:56:07,606 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:56:07,613 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:56:07,613 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:56:07,613 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:56:07,613 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:56:07,614 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:56:07,615 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:56:07,628 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-11-30 00:56:07,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:56:07,634 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:07,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:56:07,636 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:07,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:07,643 INFO L82 PathProgramCache]: Analyzing trace with hash 889507783, now seen corresponding path program 1 times [2020-11-30 00:56:07,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:56:07,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1721964886] [2020-11-30 00:56:07,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/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 [2020-11-30 00:56:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:07,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:56:07,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:08,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:56:08,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:08,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1721964886] [2020-11-30 00:56:08,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:08,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 00:56:08,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657731549] [2020-11-30 00:56:08,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:56:08,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:56:08,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:08,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:08,486 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 4 states. [2020-11-30 00:56:08,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:08,669 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-11-30 00:56:08,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:08,675 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-11-30 00:56:08,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:08,681 INFO L225 Difference]: With dead ends: 20 [2020-11-30 00:56:08,681 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:56:08,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:08,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:56:08,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:56:08,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:56:08,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:56:08,715 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-11-30 00:56:08,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:08,715 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:56:08,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:56:08,716 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:56:08,716 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:56:08,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:56:08,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:56:08,977 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:56:08,978 INFO L274 CegarLoopResult]: For program point L967(lines 967 969) no Hoare annotation was computed. [2020-11-30 00:56:08,978 INFO L274 CegarLoopResult]: For program point L965(lines 965 970) no Hoare annotation was computed. [2020-11-30 00:56:08,978 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:56:08,978 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:56:08,978 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:56:08,979 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-30 00:56:08,979 INFO L277 CegarLoopResult]: At program point L982(lines 974 983) the Hoare annotation is: true [2020-11-30 00:56:08,979 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 00:56:08,979 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-30 00:56:08,979 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-11-30 00:56:08,979 INFO L274 CegarLoopResult]: For program point L968(line 968) no Hoare annotation was computed. [2020-11-30 00:56:08,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:56:08 BoogieIcfgContainer [2020-11-30 00:56:08,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:56:08,989 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:56:08,989 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:56:08,989 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:56:08,990 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:56:07" (3/4) ... [2020-11-30 00:56:08,994 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:56:09,007 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:56:09,007 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:56:09,007 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:56:09,007 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:56:09,051 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0e4c9843-beff-4ca7-ae65-a3f69a821f3f/bin/uautomizer/witness.graphml [2020-11-30 00:56:09,051 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:56:09,054 INFO L168 Benchmark]: Toolchain (without parser) took 3931.51 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 32.3 MB in the beginning and 35.0 MB in the end (delta: -2.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:09,055 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 36.3 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:56:09,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1539.35 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 32.1 MB in the beginning and 49.3 MB in the end (delta: -17.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:09,057 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.91 ms. Allocated memory is still 75.5 MB. Free memory was 49.3 MB in the beginning and 46.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:09,057 INFO L168 Benchmark]: Boogie Preprocessor took 59.22 ms. Allocated memory is still 75.5 MB. Free memory was 46.7 MB in the beginning and 45.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:56:09,058 INFO L168 Benchmark]: RCFGBuilder took 642.23 ms. Allocated memory is still 75.5 MB. Free memory was 45.6 MB in the beginning and 33.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:09,059 INFO L168 Benchmark]: TraceAbstraction took 1498.93 ms. Allocated memory is still 75.5 MB. Free memory was 33.6 MB in the beginning and 37.6 MB in the end (delta: -4.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:56:09,060 INFO L168 Benchmark]: Witness Printer took 62.64 ms. Allocated memory is still 75.5 MB. Free memory was 37.6 MB in the beginning and 35.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:09,064 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 36.3 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1539.35 ms. Allocated memory was 54.5 MB in the beginning and 75.5 MB in the end (delta: 21.0 MB). Free memory was 32.1 MB in the beginning and 49.3 MB in the end (delta: -17.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.91 ms. Allocated memory is still 75.5 MB. Free memory was 49.3 MB in the beginning and 46.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.22 ms. Allocated memory is still 75.5 MB. Free memory was 46.7 MB in the beginning and 45.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 642.23 ms. Allocated memory is still 75.5 MB. Free memory was 45.6 MB in the beginning and 33.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1498.93 ms. Allocated memory is still 75.5 MB. Free memory was 33.6 MB in the beginning and 37.6 MB in the end (delta: -4.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 62.64 ms. Allocated memory is still 75.5 MB. Free memory was 37.6 MB in the beginning and 35.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 974]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 4 SDslu, 8 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 3 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 1 QuantifiedInterpolants, 90 SizeOfPredicates, 4 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...