./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.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_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/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 43afe140f1d8923ae3cc82938867c285a58a3757 ............................................................................................................................................................................. 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_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/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 43afe140f1d8923ae3cc82938867c285a58a3757 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:17:01,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:17:01,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:17:01,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:17:01,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:17:01,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:17:01,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:17:01,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:17:01,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:17:01,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:17:01,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:17:01,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:17:01,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:17:01,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:17:01,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:17:01,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:17:01,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:17:01,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:17:01,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:17:01,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:17:01,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:17:01,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:17:01,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:17:01,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:17:01,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:17:01,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:17:01,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:17:01,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:17:01,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:17:01,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:17:01,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:17:01,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:17:01,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:17:01,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:17:01,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:17:01,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:17:01,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:17:01,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:17:01,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:17:01,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:17:01,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:17:01,811 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:17:01,851 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:17:01,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:17:01,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:17:01,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:17:01,857 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:17:01,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:17:01,857 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:17:01,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:17:01,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:17:01,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:17:01,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:17:01,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:17:01,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:17:01,860 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:17:01,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:17:01,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:17:01,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:17:01,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:17:01,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:17:01,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:17:01,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:17:01,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:17:01,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:17:01,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:17:01,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:17:01,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:17:01,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:17:01,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:17:01,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:17:01,863 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_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43afe140f1d8923ae3cc82938867c285a58a3757 [2020-11-29 23:17:02,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:17:02,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:17:02,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:17:02,193 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:17:02,194 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:17:02,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2020-11-29 23:17:02,299 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/data/2ce2dd45f/e58fe40d4cf048e7ab2222606fb3afc4/FLAG9b703bdc4 [2020-11-29 23:17:03,057 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:17:03,065 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2020-11-29 23:17:03,086 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/data/2ce2dd45f/e58fe40d4cf048e7ab2222606fb3afc4/FLAG9b703bdc4 [2020-11-29 23:17:03,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/data/2ce2dd45f/e58fe40d4cf048e7ab2222606fb3afc4 [2020-11-29 23:17:03,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:17:03,311 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:17:03,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:17:03,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:17:03,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:17:03,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:17:03" (1/1) ... [2020-11-29 23:17:03,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71fe8c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:03, skipping insertion in model container [2020-11-29 23:17:03,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:17:03" (1/1) ... [2020-11-29 23:17:03,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:17:03,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:17:04,000 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: fpclassify 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:705) 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: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:706) 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:705) 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.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1408) 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:1352) 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: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) [2020-11-29 23:17:04,006 INFO L168 Benchmark]: Toolchain (without parser) took 693.93 ms. Allocated memory is still 102.8 MB. Free memory was 69.5 MB in the beginning and 79.0 MB in the end (delta: -9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:17:04,007 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 71.3 MB. Free memory was 33.1 MB in the beginning and 33.1 MB in the end (delta: 33.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:17:04,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.09 ms. Allocated memory is still 102.8 MB. Free memory was 69.3 MB in the beginning and 79.0 MB in the end (delta: -9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:17:04,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 71.3 MB. Free memory was 33.1 MB in the beginning and 33.1 MB in the end (delta: 33.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 689.09 ms. Allocated memory is still 102.8 MB. Free memory was 69.3 MB in the beginning and 79.0 MB in the end (delta: -9.7 MB). Peak memory consumption was 10.5 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: 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: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 [2020-11-29 23:17:06,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:17:06,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:17:06,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:17:06,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:17:06,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:17:06,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:17:06,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:17:06,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:17:06,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:17:06,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:17:06,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:17:06,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:17:06,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:17:06,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:17:06,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:17:06,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:17:06,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:17:06,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:17:06,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:17:06,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:17:06,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:17:06,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:17:06,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:17:06,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:17:06,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:17:06,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:17:06,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:17:06,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:17:06,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:17:06,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:17:06,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:17:06,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:17:06,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:17:06,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:17:06,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:17:06,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:17:06,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:17:06,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:17:06,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:17:06,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:17:06,557 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 23:17:06,599 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:17:06,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:17:06,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:17:06,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:17:06,601 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:17:06,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:17:06,602 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:17:06,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:17:06,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:17:06,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:17:06,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:17:06,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:17:06,603 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 23:17:06,603 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 23:17:06,603 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:17:06,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:17:06,603 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:17:06,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:17:06,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:17:06,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:17:06,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:17:06,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:17:06,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:17:06,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:17:06,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:17:06,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:17:06,608 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 23:17:06,608 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 23:17:06,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:17:06,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:17:06,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 23:17:06,610 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_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43afe140f1d8923ae3cc82938867c285a58a3757 [2020-11-29 23:17:07,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:17:07,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:17:07,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:17:07,043 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:17:07,044 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:17:07,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2020-11-29 23:17:07,130 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/data/0e7956c70/efb503ddedc04144afd3c0d67ae4113a/FLAG68780ab3f [2020-11-29 23:17:07,948 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:17:07,949 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2020-11-29 23:17:07,973 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/data/0e7956c70/efb503ddedc04144afd3c0d67ae4113a/FLAG68780ab3f [2020-11-29 23:17:08,118 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/data/0e7956c70/efb503ddedc04144afd3c0d67ae4113a [2020-11-29 23:17:08,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:17:08,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:17:08,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:17:08,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:17:08,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:17:08,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:17:08" (1/1) ... [2020-11-29 23:17:08,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@786ee24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:08, skipping insertion in model container [2020-11-29 23:17:08,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:17:08" (1/1) ... [2020-11-29 23:17:08,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:17:08,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:17:08,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:17:08,949 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:17:08,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:17:09,405 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:17:09,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:09 WrapperNode [2020-11-29 23:17:09,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:17:09,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:17:09,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:17:09,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:17:09,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:09" (1/1) ... [2020-11-29 23:17:09,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:09" (1/1) ... [2020-11-29 23:17:09,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:17:09,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:17:09,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:17:09,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:17:09,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:09" (1/1) ... [2020-11-29 23:17:09,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:09" (1/1) ... [2020-11-29 23:17:09,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:09" (1/1) ... [2020-11-29 23:17:09,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:09" (1/1) ... [2020-11-29 23:17:09,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:09" (1/1) ... [2020-11-29 23:17:09,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:09" (1/1) ... [2020-11-29 23:17:09,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:09" (1/1) ... [2020-11-29 23:17:09,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:17:09,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:17:09,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:17:09,506 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:17:09,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/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 [2020-11-29 23:17:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 23:17:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:17:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:17:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:17:12,322 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:17:12,322 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 23:17:12,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:17:12 BoogieIcfgContainer [2020-11-29 23:17:12,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:17:12,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:17:12,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:17:12,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:17:12,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:17:08" (1/3) ... [2020-11-29 23:17:12,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec0c6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:17:12, skipping insertion in model container [2020-11-29 23:17:12,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:17:09" (2/3) ... [2020-11-29 23:17:12,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec0c6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:17:12, skipping insertion in model container [2020-11-29 23:17:12,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:17:12" (3/3) ... [2020-11-29 23:17:12,333 INFO L111 eAbstractionObserver]: Analyzing ICFG float-div1.i [2020-11-29 23:17:12,345 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:17:12,350 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 23:17:12,363 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 23:17:12,389 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:17:12,390 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:17:12,390 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:17:12,390 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:17:12,390 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:17:12,391 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:17:12,391 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:17:12,391 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:17:12,404 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-29 23:17:12,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 23:17:12,409 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:17:12,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:17:12,411 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:17:12,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:17:12,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-11-29 23:17:12,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:17:12,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156249914] [2020-11-29 23:17:12,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/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 [2020-11-29 23:17:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:17:12,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 23:17:12,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:17:12,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:17:12,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:17:12,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:17:12,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156249914] [2020-11-29 23:17:12,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:17:12,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 23:17:12,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659770823] [2020-11-29 23:17:12,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:17:12,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:17:13,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:17:13,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:17:13,004 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-11-29 23:17:13,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:17:13,033 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2020-11-29 23:17:13,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:17:13,034 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-29 23:17:13,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:17:13,054 INFO L225 Difference]: With dead ends: 46 [2020-11-29 23:17:13,064 INFO L226 Difference]: Without dead ends: 19 [2020-11-29 23:17:13,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:17:13,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-29 23:17:13,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-29 23:17:13,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-29 23:17:13,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-11-29 23:17:13,106 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 7 [2020-11-29 23:17:13,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:17:13,106 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-11-29 23:17:13,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:17:13,107 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-11-29 23:17:13,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 23:17:13,108 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:17:13,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:17:13,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 23:17:13,322 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:17:13,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:17:13,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-11-29 23:17:13,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:17:13,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474112045] [2020-11-29 23:17:13,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/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 [2020-11-29 23:17:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:17:14,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 23:17:14,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:17:14,710 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 28 [2020-11-29 23:17:14,737 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:17:14,743 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:17:16,943 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_inductiveStepHunt_~startState (_ FloatingPoint 8 24))) (and (fp.isNormal ULTIMATE.start_inductiveStepHunt_~startState) (= (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode .cse0 ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) c_ULTIMATE.start_inductiveStepHunt_~oneAfter~0) (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)) ULTIMATE.start_inductiveStepHunt_~startState))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2020-11-29 23:17:23,286 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_inductiveStepHunt_~startState (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.gt (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse0 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven ULTIMATE.start_inductiveStepHunt_~startState (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse1)) (fp.lt .cse1 ULTIMATE.start_inductiveStepHunt_~startState) (fp.isNormal ULTIMATE.start_inductiveStepHunt_~startState)))) is different from false [2020-11-29 23:17:25,365 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_inductiveStepHunt_~startState (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.gt (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse0 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven ULTIMATE.start_inductiveStepHunt_~startState (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse1)) (fp.lt .cse1 ULTIMATE.start_inductiveStepHunt_~startState) (fp.isNormal ULTIMATE.start_inductiveStepHunt_~startState)))) is different from true [2020-11-29 23:17:29,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:17:29,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:17:31,810 WARN L838 $PredicateComparison]: unable to prove that (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from false [2020-11-29 23:17:35,853 WARN L838 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) is different from false [2020-11-29 23:17:38,012 WARN L860 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) is different from true [2020-11-29 23:17:38,055 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,055 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,061 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,061 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,066 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,067 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,071 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,072 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,076 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,076 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,079 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,080 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,083 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,083 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,086 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,087 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,089 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,090 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,092 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,093 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,095 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-29 23:17:38,096 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,098 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,099 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,101 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-29 23:17:38,101 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,112 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,112 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,114 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,115 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,120 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,121 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,124 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,126 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,131 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,136 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,138 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,141 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,143 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,145 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,147 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-29 23:17:38,149 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,156 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,157 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,159 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-29 23:17:38,164 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,167 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,168 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,171 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,173 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,178 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,178 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,187 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,189 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,192 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,195 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,197 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,198 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,200 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,201 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,203 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-29 23:17:38,203 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:17:38,205 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-11-29 23:17:38,209 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-11-29 23:17:38,210 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-11-29 23:17:38,212 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-11-29 23:17:38,213 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-11-29 23:17:38,217 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-11-29 23:17:38,222 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-11-29 23:17:38,223 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-11-29 23:17:38,224 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-11-29 23:17:38,226 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-11-29 23:17:40,446 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse0 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse1) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse1 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)))) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse2 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse3) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse3 v_ULTIMATE.start_inductiveStepHunt_~startState_4)))))) is different from false [2020-11-29 23:17:42,675 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse0 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse1) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse1 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)))) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse2 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse3) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse3 v_ULTIMATE.start_inductiveStepHunt_~startState_4)))))) is different from true [2020-11-29 23:17:42,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:17:42,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474112045] [2020-11-29 23:17:42,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:17:42,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2020-11-29 23:17:42,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424134495] [2020-11-29 23:17:42,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 23:17:42,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:17:42,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 23:17:42,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=8, NotChecked=60, Total=110 [2020-11-29 23:17:42,685 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 11 states. [2020-11-29 23:17:44,814 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse0 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse1) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse1 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)))) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse2 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse3) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse3 v_ULTIMATE.start_inductiveStepHunt_~startState_4)))))) is different from false [2020-11-29 23:17:47,015 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse0 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse1) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse1 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)))) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse2 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse3) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse3 v_ULTIMATE.start_inductiveStepHunt_~startState_4)))))) is different from true [2020-11-29 23:17:49,929 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) (.cse0 (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond))) (and (or .cse0 (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse1)) (= ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)) c_ULTIMATE.start_inductiveStepHunt_~target~0) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse2 (fp.isNormal c_ULTIMATE.start_inductiveStepHunt_~startState))) (or (and .cse2 (or (and .cse0 (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) c_ULTIMATE.start_inductiveStepHunt_~startState))) (and (= (_ bv1 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (fp.lt .cse1 c_ULTIMATE.start_inductiveStepHunt_~startState)))) (and (not .cse2) .cse0))))) is different from true [2020-11-29 23:17:52,056 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (and (= ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)) c_ULTIMATE.start_inductiveStepHunt_~target~0) (= c_currentRoundingMode roundNearestTiesToEven) (fp.isNormal c_ULTIMATE.start_inductiveStepHunt_~startState) (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse0) (fp.lt .cse0 c_ULTIMATE.start_inductiveStepHunt_~startState))) is different from false [2020-11-29 23:17:54,163 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (and (= ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)) c_ULTIMATE.start_inductiveStepHunt_~target~0) (= c_currentRoundingMode roundNearestTiesToEven) (fp.isNormal c_ULTIMATE.start_inductiveStepHunt_~startState) (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse0) (fp.lt .cse0 c_ULTIMATE.start_inductiveStepHunt_~startState))) is different from true [2020-11-29 23:17:56,261 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_inductiveStepHunt_~startState (_ FloatingPoint 8 24))) (and (fp.isNormal ULTIMATE.start_inductiveStepHunt_~startState) (= (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode .cse0 ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) c_ULTIMATE.start_inductiveStepHunt_~oneAfter~0) (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)) ULTIMATE.start_inductiveStepHunt_~startState))) (= c_currentRoundingMode roundNearestTiesToEven) (fp.gt c_ULTIMATE.start_inductiveStepHunt_~oneAfter~0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) is different from false [2020-11-29 23:17:56,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:17:56,649 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-11-29 23:17:56,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:17:56,651 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2020-11-29 23:17:56,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:17:56,652 INFO L225 Difference]: With dead ends: 19 [2020-11-29 23:17:56,652 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 23:17:56,653 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 33.2s TimeCoverageRelationStatistics Valid=29, Invalid=23, Unknown=14, NotChecked=144, Total=210 [2020-11-29 23:17:56,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 23:17:56,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 23:17:56,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 23:17:56,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-29 23:17:56,656 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2020-11-29 23:17:56,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:17:56,656 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-29 23:17:56,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 23:17:56,656 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-29 23:17:56,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 23:17:56,657 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:17:56,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:17:56,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 23:17:56,871 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:17:56,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:17:56,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1843628997, now seen corresponding path program 1 times [2020-11-29 23:17:56,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:17:56,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661476840] [2020-11-29 23:17:56,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 23:17:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:17:57,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:17:57,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:17:57,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:17:57,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:17:57,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:17:57,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661476840] [2020-11-29 23:17:57,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:17:57,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-29 23:17:57,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429796953] [2020-11-29 23:17:57,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:17:57,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:17:57,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:17:57,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:17:57,535 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 4 states. [2020-11-29 23:17:59,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:17:59,726 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-11-29 23:17:59,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:17:59,727 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-29 23:17:59,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:17:59,727 INFO L225 Difference]: With dead ends: 16 [2020-11-29 23:17:59,727 INFO L226 Difference]: Without dead ends: 13 [2020-11-29 23:17:59,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:17:59,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-29 23:17:59,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-29 23:17:59,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-29 23:17:59,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2020-11-29 23:17:59,730 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2020-11-29 23:17:59,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:17:59,730 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2020-11-29 23:17:59,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:17:59,730 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2020-11-29 23:17:59,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:17:59,731 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:17:59,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:17:59,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 23:17:59,943 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:17:59,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:17:59,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1317586258, now seen corresponding path program 1 times [2020-11-29 23:17:59,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:17:59,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113284745] [2020-11-29 23:17:59,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 23:18:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:18:00,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 23:18:00,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:18:00,689 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:18:04,342 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification that was a NOOP. DAG size: 18 [2020-11-29 23:18:04,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:18:04,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:18:12,472 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 7 [2020-11-29 23:18:21,190 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification that was a NOOP. DAG size: 10 [2020-11-29 23:18:21,200 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 23:18:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:18:21,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113284745] [2020-11-29 23:18:21,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:18:21,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-29 23:18:21,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386161274] [2020-11-29 23:18:21,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 23:18:21,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:18:21,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:18:21,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=47, Unknown=2, NotChecked=0, Total=72 [2020-11-29 23:18:21,528 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 9 states. [2020-11-29 23:18:39,455 WARN L193 SmtUtils]: Spent 8.69 s on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2020-11-29 23:18:39,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:18:39,828 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-11-29 23:18:39,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:18:39,879 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-11-29 23:18:39,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:18:39,880 INFO L225 Difference]: With dead ends: 13 [2020-11-29 23:18:39,880 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:18:39,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=40, Invalid=68, Unknown=2, NotChecked=0, Total=110 [2020-11-29 23:18:39,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:18:39,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:18:39,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:18:39,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:18:39,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-29 23:18:39,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:18:39,881 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:18:39,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 23:18:39,882 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:18:39,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:18:40,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 23:18:40,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 23:18:40,127 INFO L274 CegarLoopResult]: For program point L2-1(lines 2 4) no Hoare annotation was computed. [2020-11-29 23:18:40,127 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-29 23:18:40,127 INFO L277 CegarLoopResult]: At program point L399(lines 394 400) the Hoare annotation is: true [2020-11-29 23:18:40,127 INFO L274 CegarLoopResult]: For program point L391(line 391) no Hoare annotation was computed. [2020-11-29 23:18:40,127 INFO L274 CegarLoopResult]: For program point L391-2(lines 387 393) no Hoare annotation was computed. [2020-11-29 23:18:40,127 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 23:18:40,128 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-29 23:18:40,128 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 23:18:40,128 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 23:18:40,128 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 23:18:40,128 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-29 23:18:40,128 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-11-29 23:18:40,128 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-11-29 23:18:40,128 INFO L274 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2020-11-29 23:18:40,128 INFO L274 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-11-29 23:18:40,128 INFO L274 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-11-29 23:18:40,128 INFO L274 CegarLoopResult]: For program point L16-7(line 16) no Hoare annotation was computed. [2020-11-29 23:18:40,129 INFO L274 CegarLoopResult]: For program point L16-8(line 16) no Hoare annotation was computed. [2020-11-29 23:18:40,129 INFO L274 CegarLoopResult]: For program point L16-10(line 16) no Hoare annotation was computed. [2020-11-29 23:18:40,129 INFO L274 CegarLoopResult]: For program point L16-11(line 16) no Hoare annotation was computed. [2020-11-29 23:18:40,129 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 23:18:40,129 INFO L274 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-11-29 23:18:40,129 INFO L274 CegarLoopResult]: For program point L377(lines 377 385) no Hoare annotation was computed. [2020-11-29 23:18:40,129 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-29 23:18:40,129 INFO L274 CegarLoopResult]: For program point L2(lines 2 4) no Hoare annotation was computed. [2020-11-29 23:18:40,129 INFO L274 CegarLoopResult]: For program point L386(lines 386 393) no Hoare annotation was computed. [2020-11-29 23:18:40,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:18:40 BoogieIcfgContainer [2020-11-29 23:18:40,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:18:40,139 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:18:40,139 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:18:40,140 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:18:40,140 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:17:12" (3/4) ... [2020-11-29 23:18:40,143 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:18:40,162 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-29 23:18:40,163 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 23:18:40,163 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:18:40,163 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:18:40,228 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9cdb0fc1-9d0f-46a9-8590-a24e2c148567/bin/uautomizer/witness.graphml [2020-11-29 23:18:40,233 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:18:40,234 INFO L168 Benchmark]: Toolchain (without parser) took 92110.85 ms. Allocated memory was 71.3 MB in the beginning and 98.6 MB in the end (delta: 27.3 MB). Free memory was 49.6 MB in the beginning and 72.1 MB in the end (delta: -22.5 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-11-29 23:18:40,235 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 71.3 MB. Free memory is still 52.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:18:40,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1281.98 ms. Allocated memory was 71.3 MB in the beginning and 98.6 MB in the end (delta: 27.3 MB). Free memory was 49.4 MB in the beginning and 77.0 MB in the end (delta: -27.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:18:40,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.28 ms. Allocated memory is still 98.6 MB. Free memory was 77.0 MB in the beginning and 74.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:18:40,236 INFO L168 Benchmark]: Boogie Preprocessor took 32.38 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 72.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:18:40,237 INFO L168 Benchmark]: RCFGBuilder took 2819.21 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 58.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:18:40,238 INFO L168 Benchmark]: TraceAbstraction took 87812.67 ms. Allocated memory is still 98.6 MB. Free memory was 57.4 MB in the beginning and 75.2 MB in the end (delta: -17.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:18:40,238 INFO L168 Benchmark]: Witness Printer took 93.62 ms. Allocated memory is still 98.6 MB. Free memory was 75.2 MB in the beginning and 72.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:18:40,243 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 71.3 MB. Free memory is still 52.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1281.98 ms. Allocated memory was 71.3 MB in the beginning and 98.6 MB in the end (delta: 27.3 MB). Free memory was 49.4 MB in the beginning and 77.0 MB in the end (delta: -27.6 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.28 ms. Allocated memory is still 98.6 MB. Free memory was 77.0 MB in the beginning and 74.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.38 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 72.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2819.21 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 58.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 87812.67 ms. Allocated memory is still 98.6 MB. Free memory was 57.4 MB in the beginning and 75.2 MB in the end (delta: -17.8 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. * Witness Printer took 93.62 ms. Allocated memory is still 98.6 MB. Free memory was 75.2 MB in the beginning and 72.1 MB in the end (delta: 3.1 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: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: 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 - InvariantResult [Line: 394]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 87.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 34.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 15 SDslu, 28 SDs, 0 SdLazy, 53 SolverSat, 0 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 10.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 63.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 49.6s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 6 QuantifiedInterpolants, 4906 SizeOfPredicates, 15 NumberOfNonLiveVariables, 137 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...