./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float21.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_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/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 fcc9cdbda1dfb552072e950db05ca157e6d0c3fd ...................................................................................................................................................................... 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_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21.i -s /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/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 fcc9cdbda1dfb552072e950db05ca157e6d0c3fd .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:55:27,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:55:27,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:55:28,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:55:28,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:55:28,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:55:28,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:55:28,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:55:28,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:55:28,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:55:28,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:55:28,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:55:28,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:55:28,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:55:28,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:55:28,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:55:28,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:55:28,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:55:28,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:55:28,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:55:28,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:55:28,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:55:28,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:55:28,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:55:28,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:55:28,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:55:28,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:55:28,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:55:28,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:55:28,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:55:28,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:55:28,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:55:28,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:55:28,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:55:28,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:55:28,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:55:28,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:55:28,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:55:28,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:55:28,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:55:28,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:55:28,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:55:28,183 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:55:28,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:55:28,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:55:28,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:55:28,186 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:55:28,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:55:28,186 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:55:28,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:55:28,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:55:28,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:55:28,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:55:28,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:55:28,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:55:28,189 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:55:28,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:55:28,189 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:55:28,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:55:28,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:55:28,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:55:28,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:55:28,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:55:28,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:55:28,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:55:28,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:55:28,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:55:28,192 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:55:28,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:55:28,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:55:28,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:55:28,193 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_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2020-11-30 00:55:28,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:55:28,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:55:28,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:55:28,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:55:28,508 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:55:28,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-11-30 00:55:28,574 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/data/55fcd173d/28bb693da3bf4ad6a84659b3644f8373/FLAG45c16950b [2020-11-30 00:55:29,154 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:55:29,155 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-11-30 00:55:29,191 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/data/55fcd173d/28bb693da3bf4ad6a84659b3644f8373/FLAG45c16950b [2020-11-30 00:55:29,445 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/data/55fcd173d/28bb693da3bf4ad6a84659b3644f8373 [2020-11-30 00:55:29,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:55:29,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:55:29,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:29,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:55:29,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:55:29,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:29" (1/1) ... [2020-11-30 00:55:29,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139c0510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:29, skipping insertion in model container [2020-11-30 00:55:29,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:29" (1/1) ... [2020-11-30 00:55:29,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:55:29,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:55:30,134 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:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1569) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1045) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1423) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-30 00:55:30,140 INFO L168 Benchmark]: Toolchain (without parser) took 689.59 ms. Allocated memory is still 100.7 MB. Free memory was 68.9 MB in the beginning and 76.5 MB in the end (delta: -7.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:30,141 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 75.5 MB. Free memory is still 37.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:55:30,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.46 ms. Allocated memory is still 100.7 MB. Free memory was 68.7 MB in the beginning and 76.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:30,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 75.5 MB. Free memory is still 37.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 684.46 ms. Allocated memory is still 100.7 MB. Free memory was 68.7 MB in the beginning and 76.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: 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 [2020-11-30 00:55:32,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:55:32,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:55:32,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:55:32,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:55:32,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:55:32,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:55:32,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:55:32,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:55:32,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:55:32,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:55:32,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:55:32,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:55:32,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:55:32,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:55:32,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:55:32,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:55:32,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:55:32,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:55:32,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:55:32,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:55:32,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:55:32,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:55:32,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:55:32,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:55:32,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:55:32,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:55:32,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:55:32,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:55:32,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:55:32,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:55:32,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:55:32,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:55:32,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:55:32,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:55:32,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:55:32,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:55:32,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:55:32,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:55:32,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:55:32,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:55:32,479 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:55:32,529 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:55:32,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:55:32,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:55:32,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:55:32,533 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:55:32,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:55:32,533 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:55:32,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:55:32,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:55:32,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:55:32,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:55:32,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:55:32,535 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:55:32,536 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:55:32,536 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:55:32,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:55:32,536 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:55:32,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:55:32,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:55:32,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:55:32,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:55:32,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:55:32,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:55:32,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:55:32,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:55:32,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:55:32,538 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:55:32,538 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:55:32,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:55:32,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:55:32,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:55:32,539 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_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc9cdbda1dfb552072e950db05ca157e6d0c3fd [2020-11-30 00:55:32,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:55:32,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:55:32,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:55:32,930 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:55:32,931 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:55:32,932 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-11-30 00:55:33,012 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/data/1132ecab0/d09ee7a4095a48cbb78b7ba5d608d231/FLAG700af70da [2020-11-30 00:55:33,628 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:55:33,629 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/sv-benchmarks/c/floats-cbmc-regression/float21.i [2020-11-30 00:55:33,649 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/data/1132ecab0/d09ee7a4095a48cbb78b7ba5d608d231/FLAG700af70da [2020-11-30 00:55:33,894 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/data/1132ecab0/d09ee7a4095a48cbb78b7ba5d608d231 [2020-11-30 00:55:33,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:55:33,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:55:33,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:33,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:55:33,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:55:33,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:33" (1/1) ... [2020-11-30 00:55:33,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4568c7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:33, skipping insertion in model container [2020-11-30 00:55:33,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:33" (1/1) ... [2020-11-30 00:55:33,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:55:33,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:55:34,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:34,608 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:55:34,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:35,019 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:55:35,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:35 WrapperNode [2020-11-30 00:55:35,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:35,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:35,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:55:35,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:55:35,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:35" (1/1) ... [2020-11-30 00:55:35,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:35" (1/1) ... [2020-11-30 00:55:35,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:35,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:55:35,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:55:35,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:55:35,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:35" (1/1) ... [2020-11-30 00:55:35,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:35" (1/1) ... [2020-11-30 00:55:35,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:35" (1/1) ... [2020-11-30 00:55:35,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:35" (1/1) ... [2020-11-30 00:55:35,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:35" (1/1) ... [2020-11-30 00:55:35,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:35" (1/1) ... [2020-11-30 00:55:35,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:35" (1/1) ... [2020-11-30 00:55:35,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:55:35,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:55:35,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:55:35,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:55:35,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:55:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:55:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:55:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:55:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:55:40,371 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:55:40,371 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-11-30 00:55:40,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:40 BoogieIcfgContainer [2020-11-30 00:55:40,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:55:40,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:55:40,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:55:40,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:55:40,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:55:33" (1/3) ... [2020-11-30 00:55:40,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a336f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:55:40, skipping insertion in model container [2020-11-30 00:55:40,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:35" (2/3) ... [2020-11-30 00:55:40,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a336f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:55:40, skipping insertion in model container [2020-11-30 00:55:40,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:40" (3/3) ... [2020-11-30 00:55:40,381 INFO L111 eAbstractionObserver]: Analyzing ICFG float21.i [2020-11-30 00:55:40,392 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:55:40,396 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2020-11-30 00:55:40,408 INFO L253 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2020-11-30 00:55:40,432 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:55:40,432 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:55:40,432 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:55:40,433 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:55:40,433 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:55:40,433 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:55:40,433 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:55:40,433 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:55:40,449 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-11-30 00:55:40,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:55:40,453 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:40,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 00:55:40,455 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:55:40,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:40,460 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2020-11-30 00:55:40,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:55:40,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22748388] [2020-11-30 00:55:40,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 00:55:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:40,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:55:40,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:55:40,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:40,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:55:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:40,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22748388] [2020-11-30 00:55:40,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:40,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 00:55:40,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723028139] [2020-11-30 00:55:40,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:55:40,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:55:40,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:55:40,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:55:40,677 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 4 states. [2020-11-30 00:55:44,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:44,217 INFO L93 Difference]: Finished difference Result 132 states and 185 transitions. [2020-11-30 00:55:44,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:55:44,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-30 00:55:44,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:55:44,247 INFO L225 Difference]: With dead ends: 132 [2020-11-30 00:55:44,247 INFO L226 Difference]: Without dead ends: 54 [2020-11-30 00:55:44,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:55:44,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-30 00:55:44,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-30 00:55:44,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-30 00:55:44,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 53 transitions. [2020-11-30 00:55:44,279 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 53 transitions. Word has length 5 [2020-11-30 00:55:44,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:55:44,279 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 53 transitions. [2020-11-30 00:55:44,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:55:44,279 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 53 transitions. [2020-11-30 00:55:44,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:55:44,280 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:44,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:44,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:55:44,485 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:55:44,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:44,486 INFO L82 PathProgramCache]: Analyzing trace with hash 442954858, now seen corresponding path program 1 times [2020-11-30 00:55:44,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:55:44,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816360982] [2020-11-30 00:55:44,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/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 [2020-11-30 00:55:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:44,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:55:44,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:55:44,995 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 17 [2020-11-30 00:55:45,009 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:55:45,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:45,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:55:45,132 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 00:55:45,133 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:45,136 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 00:55:45,136 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:45,139 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 00:55:45,139 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:45,142 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 00:55:45,142 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:45,144 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 00:55:45,145 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:45,147 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 00:55:45,147 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:45,149 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-30 00:55:45,149 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:45,151 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-30 00:55:45,151 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:45,154 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 00:55:45,154 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:45,156 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-30 00:55:45,157 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:45,159 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-30 00:55:45,159 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:45,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:45,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816360982] [2020-11-30 00:55:45,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:45,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 00:55:45,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980195561] [2020-11-30 00:55:45,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 00:55:45,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:55:45,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 00:55:45,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:55:45,242 INFO L87 Difference]: Start difference. First operand 54 states and 53 transitions. Second operand 8 states. [2020-11-30 00:55:51,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:51,250 INFO L93 Difference]: Finished difference Result 54 states and 53 transitions. [2020-11-30 00:55:51,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:55:51,268 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2020-11-30 00:55:51,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:55:51,269 INFO L225 Difference]: With dead ends: 54 [2020-11-30 00:55:51,269 INFO L226 Difference]: Without dead ends: 45 [2020-11-30 00:55:51,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:55:51,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-11-30 00:55:51,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-30 00:55:51,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 00:55:51,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 44 transitions. [2020-11-30 00:55:51,276 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 44 transitions. Word has length 8 [2020-11-30 00:55:51,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:55:51,276 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 44 transitions. [2020-11-30 00:55:51,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 00:55:51,276 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 44 transitions. [2020-11-30 00:55:51,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:55:51,277 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:51,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:51,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:55:51,478 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:55:51,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:51,479 INFO L82 PathProgramCache]: Analyzing trace with hash 847036503, now seen corresponding path program 1 times [2020-11-30 00:55:51,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:55:51,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37356257] [2020-11-30 00:55:51,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/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 [2020-11-30 00:55:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:51,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:55:51,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:55:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:51,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:55:51,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:51,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37356257] [2020-11-30 00:55:51,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:51,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 00:55:51,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733413940] [2020-11-30 00:55:51,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:55:51,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:55:51,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:55:51,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:55:51,611 INFO L87 Difference]: Start difference. First operand 45 states and 44 transitions. Second operand 4 states. [2020-11-30 00:55:56,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:56,048 INFO L93 Difference]: Finished difference Result 45 states and 44 transitions. [2020-11-30 00:55:56,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:55:56,056 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-30 00:55:56,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:55:56,057 INFO L225 Difference]: With dead ends: 45 [2020-11-30 00:55:56,057 INFO L226 Difference]: Without dead ends: 39 [2020-11-30 00:55:56,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:55:56,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-30 00:55:56,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-30 00:55:56,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-30 00:55:56,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 38 transitions. [2020-11-30 00:55:56,062 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 38 transitions. Word has length 9 [2020-11-30 00:55:56,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:55:56,062 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 38 transitions. [2020-11-30 00:55:56,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:55:56,063 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 38 transitions. [2020-11-30 00:55:56,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:55:56,063 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:55:56,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:56,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 00:55:56,264 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:55:56,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:56,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1454326907, now seen corresponding path program 1 times [2020-11-30 00:55:56,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:55:56,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649836579] [2020-11-30 00:55:56,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/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 [2020-11-30 00:55:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:56,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:55:56,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:55:56,812 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 17 [2020-11-30 00:55:56,816 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:55:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:56,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:55:57,817 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-30 00:55:59,656 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 11 [2020-11-30 00:55:59,663 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:59,678 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:59,681 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:59,684 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:59,688 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:59,690 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:59,693 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:59,694 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:59,697 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:59,698 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:59,708 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 00:55:59,708 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 00:55:59,709 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 00:55:59,710 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 00:55:59,711 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-30 00:56:02,354 WARN L193 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 14 [2020-11-30 00:56:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:02,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649836579] [2020-11-30 00:56:02,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:02,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 00:56:02,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958789349] [2020-11-30 00:56:02,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 00:56:02,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:56:02,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 00:56:02,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:56:02,412 INFO L87 Difference]: Start difference. First operand 39 states and 38 transitions. Second operand 8 states. [2020-11-30 00:56:06,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:06,933 INFO L93 Difference]: Finished difference Result 39 states and 38 transitions. [2020-11-30 00:56:06,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:56:06,941 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-11-30 00:56:06,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:06,941 INFO L225 Difference]: With dead ends: 39 [2020-11-30 00:56:06,942 INFO L226 Difference]: Without dead ends: 36 [2020-11-30 00:56:06,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:56:06,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-30 00:56:06,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-30 00:56:06,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-30 00:56:06,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 35 transitions. [2020-11-30 00:56:06,946 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 35 transitions. Word has length 12 [2020-11-30 00:56:06,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:06,947 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 35 transitions. [2020-11-30 00:56:06,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 00:56:06,947 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions. [2020-11-30 00:56:06,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:56:06,948 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:06,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:07,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 00:56:07,154 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:07,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:07,155 INFO L82 PathProgramCache]: Analyzing trace with hash 2134798987, now seen corresponding path program 1 times [2020-11-30 00:56:07,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:56:07,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449118845] [2020-11-30 00:56:07,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-30 00:56:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:07,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:56:07,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:07,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:07,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:56:07,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:07,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449118845] [2020-11-30 00:56:07,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:07,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 00:56:07,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444499016] [2020-11-30 00:56:07,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:56:07,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:56:07,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:07,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:07,250 INFO L87 Difference]: Start difference. First operand 36 states and 35 transitions. Second operand 4 states. [2020-11-30 00:56:10,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:10,459 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2020-11-30 00:56:10,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:10,466 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-30 00:56:10,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:10,467 INFO L225 Difference]: With dead ends: 36 [2020-11-30 00:56:10,467 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 00:56:10,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:10,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 00:56:10,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 00:56:10,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 00:56:10,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 29 transitions. [2020-11-30 00:56:10,471 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 29 transitions. Word has length 13 [2020-11-30 00:56:10,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:10,472 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 29 transitions. [2020-11-30 00:56:10,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:56:10,472 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 29 transitions. [2020-11-30 00:56:10,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:56:10,472 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:10,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:10,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-30 00:56:10,680 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:10,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:10,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1441729926, now seen corresponding path program 1 times [2020-11-30 00:56:10,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:56:10,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547940515] [2020-11-30 00:56:10,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-30 00:56:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:10,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:56:10,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:10,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:10,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:56:11,219 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2020-11-30 00:56:11,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:11,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547940515] [2020-11-30 00:56:11,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:11,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 00:56:11,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582577692] [2020-11-30 00:56:11,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:56:11,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:56:11,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:11,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:11,229 INFO L87 Difference]: Start difference. First operand 30 states and 29 transitions. Second operand 4 states. [2020-11-30 00:56:14,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:14,016 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2020-11-30 00:56:14,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:14,027 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-30 00:56:14,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:14,027 INFO L225 Difference]: With dead ends: 30 [2020-11-30 00:56:14,028 INFO L226 Difference]: Without dead ends: 27 [2020-11-30 00:56:14,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:14,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-30 00:56:14,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-30 00:56:14,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-30 00:56:14,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2020-11-30 00:56:14,031 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 15 [2020-11-30 00:56:14,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:14,031 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2020-11-30 00:56:14,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:56:14,031 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2020-11-30 00:56:14,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:56:14,031 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:14,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:14,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-30 00:56:14,235 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:14,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:14,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1743616871, now seen corresponding path program 1 times [2020-11-30 00:56:14,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:56:14,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848915832] [2020-11-30 00:56:14,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-30 00:56:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:14,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:56:14,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:14,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:14,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:56:14,747 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2020-11-30 00:56:14,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:14,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848915832] [2020-11-30 00:56:14,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:14,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 00:56:14,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016912552] [2020-11-30 00:56:14,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:56:14,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:56:14,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:14,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:14,755 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 4 states. [2020-11-30 00:56:18,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:18,373 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-11-30 00:56:18,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:56:18,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-30 00:56:18,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:18,381 INFO L225 Difference]: With dead ends: 27 [2020-11-30 00:56:18,382 INFO L226 Difference]: Without dead ends: 24 [2020-11-30 00:56:18,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:18,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-30 00:56:18,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-11-30 00:56:18,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-30 00:56:18,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2020-11-30 00:56:18,385 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 16 [2020-11-30 00:56:18,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:18,385 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2020-11-30 00:56:18,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:56:18,386 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2020-11-30 00:56:18,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 00:56:18,386 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:56:18,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:18,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-30 00:56:18,587 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:56:18,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:18,588 INFO L82 PathProgramCache]: Analyzing trace with hash -420200872, now seen corresponding path program 1 times [2020-11-30 00:56:18,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:56:18,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418980359] [2020-11-30 00:56:18,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-30 00:56:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:18,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:56:18,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:18,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:18,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:56:26,650 WARN L193 SmtUtils]: Spent 2.38 s on a formula simplification that was a NOOP. DAG size: 9 [2020-11-30 00:56:26,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:26,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418980359] [2020-11-30 00:56:26,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:26,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 00:56:26,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962834919] [2020-11-30 00:56:26,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:56:26,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:56:26,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:56:26,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:56:26,671 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 5 states. [2020-11-30 00:56:29,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:29,234 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-11-30 00:56:29,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:56:29,243 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-11-30 00:56:29,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:56:29,244 INFO L225 Difference]: With dead ends: 24 [2020-11-30 00:56:29,244 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:56:29,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:56:29,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:56:29,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:56:29,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:56:29,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:56:29,245 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-11-30 00:56:29,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:56:29,245 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:56:29,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:56:29,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:56:29,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:56:29,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-30 00:56:29,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:56:29,499 INFO L274 CegarLoopResult]: For program point L2-1(line 391) no Hoare annotation was computed. [2020-11-30 00:56:29,499 INFO L274 CegarLoopResult]: For program point L2-2(line 402) no Hoare annotation was computed. [2020-11-30 00:56:29,499 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,499 INFO L274 CegarLoopResult]: For program point L399-1(line 399) no Hoare annotation was computed. [2020-11-30 00:56:29,499 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,499 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 00:56:29,500 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-30 00:56:29,500 INFO L274 CegarLoopResult]: For program point L3-4(line 3) no Hoare annotation was computed. [2020-11-30 00:56:29,500 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:56:29,500 INFO L274 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-11-30 00:56:29,500 INFO L274 CegarLoopResult]: For program point L384-2(line 384) no Hoare annotation was computed. [2020-11-30 00:56:29,500 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,500 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,500 INFO L274 CegarLoopResult]: For program point L402-1(line 402) no Hoare annotation was computed. [2020-11-30 00:56:29,501 INFO L270 CegarLoopResult]: At program point L403(lines 378 404) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~largestSubnormalFloat~0 ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)))) [2020-11-30 00:56:29,501 INFO L274 CegarLoopResult]: For program point L387-1(lines 379 404) no Hoare annotation was computed. [2020-11-30 00:56:29,501 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,501 INFO L274 CegarLoopResult]: For program point L388-1(line 388) no Hoare annotation was computed. [2020-11-30 00:56:29,501 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:56:29,501 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,501 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,501 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,502 INFO L274 CegarLoopResult]: For program point L391-1(lines 379 404) no Hoare annotation was computed. [2020-11-30 00:56:29,502 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,502 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:56:29,502 INFO L274 CegarLoopResult]: For program point L392-1(lines 379 404) no Hoare annotation was computed. [2020-11-30 00:56:29,502 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,502 INFO L274 CegarLoopResult]: For program point L393-1(lines 379 404) no Hoare annotation was computed. [2020-11-30 00:56:29,502 INFO L274 CegarLoopResult]: For program point L394-1(lines 379 404) no Hoare annotation was computed. [2020-11-30 00:56:29,502 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,502 INFO L274 CegarLoopResult]: For program point L395-1(lines 379 404) no Hoare annotation was computed. [2020-11-30 00:56:29,503 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:56:29,503 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,503 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,503 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,503 INFO L274 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,503 INFO L274 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,503 INFO L274 CegarLoopResult]: For program point L396-1(lines 379 404) no Hoare annotation was computed. [2020-11-30 00:56:29,503 INFO L274 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,503 INFO L274 CegarLoopResult]: For program point L16-7(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,504 INFO L274 CegarLoopResult]: For program point L16-8(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,504 INFO L274 CegarLoopResult]: For program point L16-10(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,504 INFO L274 CegarLoopResult]: For program point L16-11(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,504 INFO L274 CegarLoopResult]: For program point L16-12(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,504 INFO L274 CegarLoopResult]: For program point L16-14(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,504 INFO L274 CegarLoopResult]: For program point L16-15(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,504 INFO L274 CegarLoopResult]: For program point L16-16(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,504 INFO L274 CegarLoopResult]: For program point L16-18(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,504 INFO L274 CegarLoopResult]: For program point L16-19(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,505 INFO L274 CegarLoopResult]: For program point L16-20(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,505 INFO L274 CegarLoopResult]: For program point L16-22(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,505 INFO L274 CegarLoopResult]: For program point L16-23(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,505 INFO L274 CegarLoopResult]: For program point L16-24(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,505 INFO L274 CegarLoopResult]: For program point L16-26(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,505 INFO L274 CegarLoopResult]: For program point L16-27(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,505 INFO L274 CegarLoopResult]: For program point L16-28(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,505 INFO L274 CegarLoopResult]: For program point L16-30(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,505 INFO L274 CegarLoopResult]: For program point L16-31(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,506 INFO L274 CegarLoopResult]: For program point L16-32(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,506 INFO L274 CegarLoopResult]: For program point L16-34(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,506 INFO L274 CegarLoopResult]: For program point L16-35(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,506 INFO L274 CegarLoopResult]: For program point L16-36(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,506 INFO L274 CegarLoopResult]: For program point L397-1(lines 379 404) no Hoare annotation was computed. [2020-11-30 00:56:29,506 INFO L274 CegarLoopResult]: For program point L16-38(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,506 INFO L274 CegarLoopResult]: For program point L16-39(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,506 INFO L274 CegarLoopResult]: For program point L16-40(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,506 INFO L274 CegarLoopResult]: For program point L16-42(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,506 INFO L274 CegarLoopResult]: For program point L16-43(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,507 INFO L274 CegarLoopResult]: For program point L16-44(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,507 INFO L274 CegarLoopResult]: For program point L16-46(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,507 INFO L274 CegarLoopResult]: For program point L16-47(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,507 INFO L274 CegarLoopResult]: For program point L16-48(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,507 INFO L274 CegarLoopResult]: For program point L16-50(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,507 INFO L274 CegarLoopResult]: For program point L16-51(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,507 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 00:56:29,507 INFO L274 CegarLoopResult]: For program point L398-1(lines 379 404) no Hoare annotation was computed. [2020-11-30 00:56:29,507 INFO L274 CegarLoopResult]: For program point L2(line 387) no Hoare annotation was computed. [2020-11-30 00:56:29,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:56:29,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:56:29,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:56:29 BoogieIcfgContainer [2020-11-30 00:56:29,523 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:56:29,523 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:56:29,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:56:29,524 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:56:29,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:40" (3/4) ... [2020-11-30 00:56:29,527 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:56:29,542 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-30 00:56:29,542 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:56:29,543 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:56:29,543 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:56:29,573 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) [2020-11-30 00:56:29,631 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_58ce3a9c-bedb-4a66-a81c-5d5a3652b9f4/bin/uautomizer/witness.graphml [2020-11-30 00:56:29,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:56:29,632 INFO L168 Benchmark]: Toolchain (without parser) took 55732.10 ms. Allocated memory was 50.3 MB in the beginning and 96.5 MB in the end (delta: 46.1 MB). Free memory was 25.1 MB in the beginning and 36.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:29,633 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 50.3 MB. Free memory was 31.8 MB in the beginning and 31.8 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:56:29,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1117.01 ms. Allocated memory was 50.3 MB in the beginning and 79.7 MB in the end (delta: 29.4 MB). Free memory was 24.9 MB in the beginning and 49.6 MB in the end (delta: -24.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:29,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.57 ms. Allocated memory is still 79.7 MB. Free memory was 49.6 MB in the beginning and 46.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:29,634 INFO L168 Benchmark]: Boogie Preprocessor took 30.93 ms. Allocated memory is still 79.7 MB. Free memory was 46.9 MB in the beginning and 45.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:29,634 INFO L168 Benchmark]: RCFGBuilder took 5261.86 ms. Allocated memory is still 79.7 MB. Free memory was 44.8 MB in the beginning and 50.8 MB in the end (delta: -5.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:29,635 INFO L168 Benchmark]: TraceAbstraction took 49148.51 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 50.2 MB in the beginning and 40.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:29,635 INFO L168 Benchmark]: Witness Printer took 107.62 ms. Allocated memory is still 96.5 MB. Free memory was 40.4 MB in the beginning and 36.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:56:29,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 50.3 MB. Free memory was 31.8 MB in the beginning and 31.8 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1117.01 ms. Allocated memory was 50.3 MB in the beginning and 79.7 MB in the end (delta: 29.4 MB). Free memory was 24.9 MB in the beginning and 49.6 MB in the end (delta: -24.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.57 ms. Allocated memory is still 79.7 MB. Free memory was 49.6 MB in the beginning and 46.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.93 ms. Allocated memory is still 79.7 MB. Free memory was 46.9 MB in the beginning and 45.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5261.86 ms. Allocated memory is still 79.7 MB. Free memory was 44.8 MB in the beginning and 50.8 MB in the end (delta: -5.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 49148.51 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 50.2 MB in the beginning and 40.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. * Witness Printer took 107.62 ms. Allocated memory is still 96.5 MB. Free memory was 40.4 MB in the beginning and 36.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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 - 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 - 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 - 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 - 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 13 specifications checked. All of them hold - InvariantResult [Line: 378]: Loop Invariant [2020-11-30 00:56:29,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:56:29,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 13 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 49.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 30.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 167 SDtfs, 305 SDslu, 105 SDs, 0 SdLazy, 196 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 151 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 15.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 6 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.7s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 178 ConstructedInterpolants, 27 QuantifiedInterpolants, 19233 SizeOfPredicates, 34 NumberOfNonLiveVariables, 273 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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...