./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0874.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0874.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0982eedb9d6e93530fad43cd68d66909a89a476f3c25408c32fb45fa977665ac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:26:45,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:26:45,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:26:45,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:26:45,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:26:45,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:26:45,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:26:45,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:26:45,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:26:45,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:26:45,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:26:45,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:26:45,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:26:45,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:26:45,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:26:45,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:26:45,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:26:45,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:26:45,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:26:45,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:26:45,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:26:45,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:26:45,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:26:45,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:26:45,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:26:45,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:26:45,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:26:45,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:26:45,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:26:45,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:26:45,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:26:45,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:26:45,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:26:45,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:26:45,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:26:45,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:26:45,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:26:45,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:26:45,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:26:45,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:26:45,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:26:46,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:26:46,056 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:26:46,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:26:46,057 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:26:46,057 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:26:46,062 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:26:46,062 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:26:46,062 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:26:46,063 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:26:46,063 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:26:46,063 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:26:46,064 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:26:46,064 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:26:46,065 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:26:46,065 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:26:46,065 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:26:46,065 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:26:46,066 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:26:46,066 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:26:46,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:26:46,067 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:26:46,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:26:46,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:26:46,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:26:46,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:26:46,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:26:46,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:26:46,070 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:26:46,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:26:46,071 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:26:46,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:26:46,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:26:46,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:26:46,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:26:46,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:26:46,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:26:46,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:26:46,073 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:26:46,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:26:46,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:26:46,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:26:46,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:26:46,074 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0982eedb9d6e93530fad43cd68d66909a89a476f3c25408c32fb45fa977665ac [2021-11-23 02:26:46,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:26:46,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:26:46,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:26:46,457 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:26:46,458 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:26:46,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/float_req_bl_0874.c [2021-11-23 02:26:46,561 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/data/10950415d/4c846516f0774558b97630314aeee6a4/FLAGed5f5dc27 [2021-11-23 02:26:47,141 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:26:47,141 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/sv-benchmarks/c/float-newlib/float_req_bl_0874.c [2021-11-23 02:26:47,156 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/data/10950415d/4c846516f0774558b97630314aeee6a4/FLAGed5f5dc27 [2021-11-23 02:26:47,432 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/data/10950415d/4c846516f0774558b97630314aeee6a4 [2021-11-23 02:26:47,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:26:47,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:26:47,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:26:47,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:26:47,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:26:47,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:26:47" (1/1) ... [2021-11-23 02:26:47,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eab3c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:47, skipping insertion in model container [2021-11-23 02:26:47,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:26:47" (1/1) ... [2021-11-23 02:26:47,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:26:47,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:26:47,765 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$50(StandardFunctionHandler.java:415) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1434) 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.FunctionHandler.handleReturnStatement(FunctionHandler.java:539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2021) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1633) 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:1069) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1610) 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:1069) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1456) 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:3268) 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.CHandler.visit(CHandler.java:595) 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) [2021-11-23 02:26:47,770 INFO L158 Benchmark]: Toolchain (without parser) took 333.20ms. Allocated memory is still 88.1MB. Free memory was 62.5MB in the beginning and 62.6MB in the end (delta: -163.5kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 02:26:47,770 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:26:47,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.89ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 62.6MB in the end (delta: -353.4kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 02:26:47,772 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.89ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 62.6MB in the end (delta: -353.4kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0874.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0982eedb9d6e93530fad43cd68d66909a89a476f3c25408c32fb45fa977665ac --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:26:50,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:26:50,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:26:50,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:26:50,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:26:50,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:26:50,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:26:50,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:26:50,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:26:50,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:26:50,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:26:50,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:26:50,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:26:50,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:26:50,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:26:50,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:26:50,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:26:50,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:26:50,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:26:50,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:26:50,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:26:50,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:26:50,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:26:50,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:26:50,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:26:50,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:26:50,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:26:50,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:26:50,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:26:50,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:26:50,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:26:50,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:26:50,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:26:50,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:26:50,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:26:50,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:26:50,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:26:50,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:26:50,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:26:50,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:26:50,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:26:50,355 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 02:26:50,407 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:26:50,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:26:50,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:26:50,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:26:50,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:26:50,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:26:50,410 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:26:50,410 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:26:50,410 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:26:50,411 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:26:50,412 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:26:50,412 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:26:50,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:26:50,415 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:26:50,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:26:50,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:26:50,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:26:50,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:26:50,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:26:50,416 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 02:26:50,416 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 02:26:50,417 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 02:26:50,417 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:26:50,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:26:50,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:26:50,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:26:50,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:26:50,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:26:50,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:26:50,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:26:50,419 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:26:50,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:26:50,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:26:50,420 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 02:26:50,421 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 02:26:50,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:26:50,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:26:50,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:26:50,422 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_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0982eedb9d6e93530fad43cd68d66909a89a476f3c25408c32fb45fa977665ac [2021-11-23 02:26:50,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:26:50,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:26:50,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:26:50,962 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:26:50,963 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:26:50,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/float_req_bl_0874.c [2021-11-23 02:26:51,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/data/3b9d62a94/eda984a4610b459d900b716bfd32ab70/FLAG721d11994 [2021-11-23 02:26:51,740 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:26:51,740 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/sv-benchmarks/c/float-newlib/float_req_bl_0874.c [2021-11-23 02:26:51,774 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/data/3b9d62a94/eda984a4610b459d900b716bfd32ab70/FLAG721d11994 [2021-11-23 02:26:52,027 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/data/3b9d62a94/eda984a4610b459d900b716bfd32ab70 [2021-11-23 02:26:52,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:26:52,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:26:52,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:26:52,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:26:52,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:26:52,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:26:52" (1/1) ... [2021-11-23 02:26:52,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@665486d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:52, skipping insertion in model container [2021-11-23 02:26:52,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:26:52" (1/1) ... [2021-11-23 02:26:52,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:26:52,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:26:52,469 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/sv-benchmarks/c/float-newlib/float_req_bl_0874.c[14102,14115] [2021-11-23 02:26:52,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:26:52,491 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:26:52,631 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/sv-benchmarks/c/float-newlib/float_req_bl_0874.c[14102,14115] [2021-11-23 02:26:52,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:26:52,654 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:26:52,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:52 WrapperNode [2021-11-23 02:26:52,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:26:52,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:26:52,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:26:52,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:26:52,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:52" (1/1) ... [2021-11-23 02:26:52,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:52" (1/1) ... [2021-11-23 02:26:52,773 INFO L137 Inliner]: procedures = 26, calls = 193, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 735 [2021-11-23 02:26:52,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:26:52,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:26:52,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:26:52,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:26:52,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:52" (1/1) ... [2021-11-23 02:26:52,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:52" (1/1) ... [2021-11-23 02:26:52,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:52" (1/1) ... [2021-11-23 02:26:52,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:52" (1/1) ... [2021-11-23 02:26:52,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:52" (1/1) ... [2021-11-23 02:26:52,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:52" (1/1) ... [2021-11-23 02:26:52,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:52" (1/1) ... [2021-11-23 02:26:52,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:26:52,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:26:52,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:26:52,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:26:52,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:52" (1/1) ... [2021-11-23 02:26:52,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:26:52,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:26:52,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:26:52,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:26:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:26:52,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 02:26:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:26:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-23 02:26:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-23 02:26:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-23 02:26:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 02:26:52,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-23 02:26:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2021-11-23 02:26:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2021-11-23 02:26:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-23 02:26:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:26:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:26:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 02:26:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:26:53,157 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:26:53,159 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:27:18,803 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:27:18,817 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:27:18,825 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-23 02:27:18,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:27:18 BoogieIcfgContainer [2021-11-23 02:27:18,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:27:18,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:27:18,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:27:18,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:27:18,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:26:52" (1/3) ... [2021-11-23 02:27:18,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f95f2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:27:18, skipping insertion in model container [2021-11-23 02:27:18,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:26:52" (2/3) ... [2021-11-23 02:27:18,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f95f2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:27:18, skipping insertion in model container [2021-11-23 02:27:18,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:27:18" (3/3) ... [2021-11-23 02:27:18,875 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0874.c [2021-11-23 02:27:18,882 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:27:18,882 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:27:18,959 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:27:18,971 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:27:18,972 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:27:19,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 199 states, 190 states have (on average 1.7157894736842105) internal successors, (326), 191 states have internal predecessors, (326), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-23 02:27:19,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 02:27:19,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:27:19,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:27:19,029 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:27:19,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:27:19,039 INFO L85 PathProgramCache]: Analyzing trace with hash -2090504015, now seen corresponding path program 1 times [2021-11-23 02:27:19,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:27:19,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225191376] [2021-11-23 02:27:19,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:27:19,059 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:27:19,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:27:19,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:27:19,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 02:27:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:27:20,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 02:27:20,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:27:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:27:20,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:27:20,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:27:20,554 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:27:20,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225191376] [2021-11-23 02:27:20,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1225191376] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:27:20,556 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:27:20,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 02:27:20,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488768128] [2021-11-23 02:27:20,559 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:27:20,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:27:20,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:27:20,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:27:20,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:27:20,608 INFO L87 Difference]: Start difference. First operand has 199 states, 190 states have (on average 1.7157894736842105) internal successors, (326), 191 states have internal predecessors, (326), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:27:20,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:27:20,669 INFO L93 Difference]: Finished difference Result 395 states and 673 transitions. [2021-11-23 02:27:20,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:27:20,671 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-11-23 02:27:20,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:27:20,683 INFO L225 Difference]: With dead ends: 395 [2021-11-23 02:27:20,683 INFO L226 Difference]: Without dead ends: 195 [2021-11-23 02:27:20,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:27:20,692 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:27:20,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:27:20,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-23 02:27:20,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-23 02:27:20,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 187 states have (on average 1.3262032085561497) internal successors, (248), 187 states have internal predecessors, (248), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-23 02:27:20,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 258 transitions. [2021-11-23 02:27:20,756 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 258 transitions. Word has length 20 [2021-11-23 02:27:20,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:27:20,757 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 258 transitions. [2021-11-23 02:27:20,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:27:20,757 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 258 transitions. [2021-11-23 02:27:20,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 02:27:20,759 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:27:20,759 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:27:20,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:27:20,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:27:20,985 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:27:20,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:27:20,986 INFO L85 PathProgramCache]: Analyzing trace with hash -85606773, now seen corresponding path program 1 times [2021-11-23 02:27:20,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:27:20,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128578425] [2021-11-23 02:27:20,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:27:20,987 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:27:20,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:27:20,989 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:27:21,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 02:27:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:27:22,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:27:22,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:27:23,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:27:23,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:27:24,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:27:24,155 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:27:24,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128578425] [2021-11-23 02:27:24,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128578425] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:27:24,156 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:27:24,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-23 02:27:24,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672195033] [2021-11-23 02:27:24,156 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:27:24,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 02:27:24,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:27:24,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 02:27:24,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:27:24,160 INFO L87 Difference]: Start difference. First operand 195 states and 258 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:27:26,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:28,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:30,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:32,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:27:32,385 INFO L93 Difference]: Finished difference Result 585 states and 763 transitions. [2021-11-23 02:27:32,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 02:27:32,386 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2021-11-23 02:27:32,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:27:32,394 INFO L225 Difference]: With dead ends: 585 [2021-11-23 02:27:32,395 INFO L226 Difference]: Without dead ends: 577 [2021-11-23 02:27:32,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:27:32,398 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 527 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 87 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:27:32,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [535 Valid, 2725 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 46 Invalid, 2 Unknown, 87 Unchecked, 8.0s Time] [2021-11-23 02:27:32,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2021-11-23 02:27:32,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 195. [2021-11-23 02:27:32,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 187 states have (on average 1.320855614973262) internal successors, (247), 187 states have internal predecessors, (247), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-23 02:27:32,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 257 transitions. [2021-11-23 02:27:32,433 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 257 transitions. Word has length 25 [2021-11-23 02:27:32,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:27:32,433 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 257 transitions. [2021-11-23 02:27:32,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:27:32,434 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 257 transitions. [2021-11-23 02:27:32,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 02:27:32,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:27:32,435 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:27:32,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:27:32,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:27:32,650 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:27:32,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:27:32,650 INFO L85 PathProgramCache]: Analyzing trace with hash 727300614, now seen corresponding path program 1 times [2021-11-23 02:27:32,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:27:32,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1172153486] [2021-11-23 02:27:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:27:32,652 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:27:32,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:27:32,654 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:27:32,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 02:27:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:27:33,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 02:27:33,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:27:34,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:27:34,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:27:35,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:27:35,740 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:27:35,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1172153486] [2021-11-23 02:27:35,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1172153486] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:27:35,741 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:27:35,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-23 02:27:35,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629928615] [2021-11-23 02:27:35,742 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:27:35,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 02:27:35,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:27:35,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 02:27:35,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-23 02:27:35,744 INFO L87 Difference]: Start difference. First operand 195 states and 257 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:27:39,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:42,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:46,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:27:48,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:27:48,255 INFO L93 Difference]: Finished difference Result 507 states and 659 transitions. [2021-11-23 02:27:48,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 02:27:48,256 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2021-11-23 02:27:48,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:27:48,259 INFO L225 Difference]: With dead ends: 507 [2021-11-23 02:27:48,260 INFO L226 Difference]: Without dead ends: 499 [2021-11-23 02:27:48,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-11-23 02:27:48,262 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 482 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 3704 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 222 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:27:48,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [487 Valid, 3704 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 135 Invalid, 2 Unknown, 222 Unchecked, 11.9s Time] [2021-11-23 02:27:48,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2021-11-23 02:27:48,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 195. [2021-11-23 02:27:48,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 187 states have (on average 1.3155080213903743) internal successors, (246), 187 states have internal predecessors, (246), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-23 02:27:48,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 256 transitions. [2021-11-23 02:27:48,298 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 256 transitions. Word has length 27 [2021-11-23 02:27:48,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:27:48,298 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 256 transitions. [2021-11-23 02:27:48,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:27:48,299 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 256 transitions. [2021-11-23 02:27:48,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 02:27:48,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:27:48,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:27:48,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:27:48,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:27:48,507 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:27:48,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:27:48,507 INFO L85 PathProgramCache]: Analyzing trace with hash -82046012, now seen corresponding path program 1 times [2021-11-23 02:27:48,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:27:48,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050802804] [2021-11-23 02:27:48,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:27:48,508 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:27:48,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:27:48,514 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:27:48,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 02:27:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:27:49,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 02:27:49,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:27:49,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-23 02:27:50,022 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-23 02:27:50,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 51 [2021-11-23 02:27:51,928 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:27:51,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 66 [2021-11-23 02:27:52,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 51 [2021-11-23 02:27:54,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:27:54,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:28:12,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:12,979 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:28:12,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050802804] [2021-11-23 02:28:12,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050802804] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:12,980 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:12,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-11-23 02:28:12,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642398311] [2021-11-23 02:28:12,981 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:12,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-23 02:28:12,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:28:12,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-23 02:28:12,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-11-23 02:28:12,983 INFO L87 Difference]: Start difference. First operand 195 states and 256 transitions. Second operand has 22 states, 20 states have (on average 2.05) internal successors, (41), 20 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:28:16,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:16,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:16,575 INFO L93 Difference]: Finished difference Result 203 states and 263 transitions. [2021-11-23 02:28:16,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 02:28:16,577 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 2.05) internal successors, (41), 20 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2021-11-23 02:28:16,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:16,578 INFO L225 Difference]: With dead ends: 203 [2021-11-23 02:28:16,579 INFO L226 Difference]: Without dead ends: 194 [2021-11-23 02:28:16,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-11-23 02:28:16,580 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 3 mSDsluCounter, 3145 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 360 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:16,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 3388 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 1 Unknown, 360 Unchecked, 3.4s Time] [2021-11-23 02:28:16,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-23 02:28:16,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2021-11-23 02:28:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 186 states have (on average 1.3118279569892473) internal successors, (244), 186 states have internal predecessors, (244), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-23 02:28:16,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 254 transitions. [2021-11-23 02:28:16,592 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 254 transitions. Word has length 27 [2021-11-23 02:28:16,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:16,592 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 254 transitions. [2021-11-23 02:28:16,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 2.05) internal successors, (41), 20 states have internal predecessors, (41), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:28:16,593 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 254 transitions. [2021-11-23 02:28:16,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 02:28:16,594 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:16,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:16,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:28:16,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:28:16,817 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:16,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:16,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2001119024, now seen corresponding path program 1 times [2021-11-23 02:28:16,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:28:16,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517840225] [2021-11-23 02:28:16,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:16,819 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:28:16,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:28:16,820 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:28:16,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 02:28:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:17,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 02:28:17,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:28:17,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-23 02:28:18,113 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-23 02:28:18,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 51 [2021-11-23 02:28:19,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2021-11-23 02:28:21,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:21,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:28:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:27,178 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:28:27,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517840225] [2021-11-23 02:28:27,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517840225] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:27,178 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:27,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 20 [2021-11-23 02:28:27,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866169074] [2021-11-23 02:28:27,179 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:27,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-23 02:28:27,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:28:27,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-23 02:28:27,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2021-11-23 02:28:27,181 INFO L87 Difference]: Start difference. First operand 194 states and 254 transitions. Second operand has 20 states, 20 states have (on average 2.25) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:28:31,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:28:31,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:31,970 INFO L93 Difference]: Finished difference Result 325 states and 423 transitions. [2021-11-23 02:28:31,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 02:28:31,971 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2021-11-23 02:28:31,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:31,976 INFO L225 Difference]: With dead ends: 325 [2021-11-23 02:28:31,976 INFO L226 Difference]: Without dead ends: 317 [2021-11-23 02:28:31,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2021-11-23 02:28:31,978 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 284 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 2914 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 200 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:31,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 2914 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 1 Unknown, 200 Unchecked, 4.1s Time] [2021-11-23 02:28:31,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-11-23 02:28:32,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 196. [2021-11-23 02:28:32,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 188 states have (on average 1.3138297872340425) internal successors, (247), 188 states have internal predecessors, (247), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-23 02:28:32,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 257 transitions. [2021-11-23 02:28:32,018 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 257 transitions. Word has length 29 [2021-11-23 02:28:32,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:32,019 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 257 transitions. [2021-11-23 02:28:32,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 18 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:28:32,019 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 257 transitions. [2021-11-23 02:28:32,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 02:28:32,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:32,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:32,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 02:28:32,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:28:32,254 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:32,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:32,254 INFO L85 PathProgramCache]: Analyzing trace with hash -425950886, now seen corresponding path program 1 times [2021-11-23 02:28:32,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:28:32,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216676656] [2021-11-23 02:28:32,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:32,255 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:28:32,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:28:32,256 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:28:32,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 02:28:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:33,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:28:33,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:28:34,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:34,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:28:35,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:35,264 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:28:35,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216676656] [2021-11-23 02:28:35,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216676656] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:35,264 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:35,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-23 02:28:35,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875379425] [2021-11-23 02:28:35,265 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:35,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 02:28:35,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:28:35,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 02:28:35,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:28:35,266 INFO L87 Difference]: Start difference. First operand 196 states and 257 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:28:35,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:35,443 INFO L93 Difference]: Finished difference Result 219 states and 283 transitions. [2021-11-23 02:28:35,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:28:35,444 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2021-11-23 02:28:35,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:35,445 INFO L225 Difference]: With dead ends: 219 [2021-11-23 02:28:35,445 INFO L226 Difference]: Without dead ends: 38 [2021-11-23 02:28:35,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:28:35,448 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 20 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:35,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 164 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 19 Unchecked, 0.1s Time] [2021-11-23 02:28:35,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-23 02:28:35,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-11-23 02:28:35,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:28:35,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2021-11-23 02:28:35,453 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 30 [2021-11-23 02:28:35,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:35,453 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2021-11-23 02:28:35,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:28:35,454 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2021-11-23 02:28:35,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 02:28:35,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:35,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:35,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 02:28:35,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:28:35,682 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:35,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:35,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1680752917, now seen corresponding path program 1 times [2021-11-23 02:28:35,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:28:35,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522292157] [2021-11-23 02:28:35,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:35,683 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:28:35,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:28:35,684 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:28:35,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 02:28:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:36,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 02:28:36,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:28:36,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-23 02:28:37,027 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-23 02:28:37,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 51 [2021-11-23 02:28:38,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2021-11-23 02:28:41,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:41,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:28:46,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:46,549 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:28:46,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522292157] [2021-11-23 02:28:46,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522292157] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:46,550 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:46,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-23 02:28:46,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457541769] [2021-11-23 02:28:46,550 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:46,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-23 02:28:46,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:28:46,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-23 02:28:46,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-11-23 02:28:46,552 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:28:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:46,858 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2021-11-23 02:28:46,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 02:28:46,858 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2021-11-23 02:28:46,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:46,859 INFO L225 Difference]: With dead ends: 54 [2021-11-23 02:28:46,859 INFO L226 Difference]: Without dead ends: 46 [2021-11-23 02:28:46,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-11-23 02:28:46,861 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 16 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:46,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 357 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 34 Unchecked, 0.1s Time] [2021-11-23 02:28:46,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-23 02:28:46,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2021-11-23 02:28:46,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:28:46,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2021-11-23 02:28:46,865 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 30 [2021-11-23 02:28:46,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:46,866 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-11-23 02:28:46,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:28:46,866 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2021-11-23 02:28:46,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 02:28:46,867 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:46,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:46,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-23 02:28:47,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:28:47,074 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:47,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:47,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1447467385, now seen corresponding path program 1 times [2021-11-23 02:28:47,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:28:47,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1766751325] [2021-11-23 02:28:47,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:47,075 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:28:47,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:28:47,076 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:28:47,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 02:28:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:48,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 02:28:48,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:28:49,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:49,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:28:52,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:52,640 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:28:52,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1766751325] [2021-11-23 02:28:52,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1766751325] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:52,640 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:52,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-23 02:28:52,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872930527] [2021-11-23 02:28:52,641 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:52,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-23 02:28:52,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:28:52,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-23 02:28:52,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-11-23 02:28:52,643 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:28:52,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:52,842 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2021-11-23 02:28:52,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 02:28:52,842 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2021-11-23 02:28:52,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:52,843 INFO L225 Difference]: With dead ends: 54 [2021-11-23 02:28:52,843 INFO L226 Difference]: Without dead ends: 45 [2021-11-23 02:28:52,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-11-23 02:28:52,844 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 30 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:52,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 430 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 39 Unchecked, 0.0s Time] [2021-11-23 02:28:52,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-23 02:28:52,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 36. [2021-11-23 02:28:52,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 33 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:28:52,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2021-11-23 02:28:52,848 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 32 [2021-11-23 02:28:52,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:52,849 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2021-11-23 02:28:52,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:28:52,849 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2021-11-23 02:28:52,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 02:28:52,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:52,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:52,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-23 02:28:53,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:28:53,058 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:53,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:53,059 INFO L85 PathProgramCache]: Analyzing trace with hash -767409015, now seen corresponding path program 1 times [2021-11-23 02:28:53,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:28:53,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862161225] [2021-11-23 02:28:53,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:53,060 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:28:53,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:28:53,061 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:28:53,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 02:28:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:54,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:28:54,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:28:54,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:54,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:28:55,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:55,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:28:55,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862161225] [2021-11-23 02:28:55,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862161225] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:55,486 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:55,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 02:28:55,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890829381] [2021-11-23 02:28:55,486 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:55,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:28:55,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:28:55,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:28:55,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:28:55,488 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:28:55,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:55,491 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2021-11-23 02:28:55,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:28:55,491 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2021-11-23 02:28:55,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:55,492 INFO L225 Difference]: With dead ends: 44 [2021-11-23 02:28:55,493 INFO L226 Difference]: Without dead ends: 34 [2021-11-23 02:28:55,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:28:55,494 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 6 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:55,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 168 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2021-11-23 02:28:55,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-23 02:28:55,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-11-23 02:28:55,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 31 states have (on average 1.064516129032258) internal successors, (33), 31 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:28:55,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2021-11-23 02:28:55,498 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 32 [2021-11-23 02:28:55,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:55,499 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2021-11-23 02:28:55,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:28:55,499 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2021-11-23 02:28:55,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 02:28:55,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:55,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:55,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-23 02:28:55,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:28:55,710 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:55,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:55,710 INFO L85 PathProgramCache]: Analyzing trace with hash 902951312, now seen corresponding path program 1 times [2021-11-23 02:28:55,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:28:55,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138012601] [2021-11-23 02:28:55,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:55,711 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:28:55,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:28:55,711 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:28:55,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-23 02:28:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:56,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:28:56,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:28:57,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:57,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:28:58,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:28:58,051 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:28:58,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138012601] [2021-11-23 02:28:58,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138012601] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:28:58,051 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:28:58,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 02:28:58,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783144958] [2021-11-23 02:28:58,052 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:28:58,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:28:58,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:28:58,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:28:58,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:28:58,053 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:28:58,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:28:58,056 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2021-11-23 02:28:58,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:28:58,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2021-11-23 02:28:58,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:28:58,057 INFO L225 Difference]: With dead ends: 43 [2021-11-23 02:28:58,057 INFO L226 Difference]: Without dead ends: 34 [2021-11-23 02:28:58,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:28:58,058 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 4 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:28:58,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 107 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2021-11-23 02:28:58,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-23 02:28:58,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-11-23 02:28:58,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 31 states have (on average 1.032258064516129) internal successors, (32), 31 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-23 02:28:58,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2021-11-23 02:28:58,063 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 32 [2021-11-23 02:28:58,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:28:58,063 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2021-11-23 02:28:58,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:28:58,064 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2021-11-23 02:28:58,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 02:28:58,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:28:58,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:28:58,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-23 02:28:58,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:28:58,286 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:28:58,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:28:58,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1583009682, now seen corresponding path program 1 times [2021-11-23 02:28:58,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:28:58,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132414400] [2021-11-23 02:28:58,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:28:58,287 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:28:58,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:28:58,288 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:28:58,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-23 02:28:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:28:59,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 02:28:59,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:28:59,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-23 02:28:59,667 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-23 02:28:59,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 51 [2021-11-23 02:29:01,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2021-11-23 02:29:03,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:29:03,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:29:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:29:09,017 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:29:09,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132414400] [2021-11-23 02:29:09,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132414400] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:29:09,018 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:29:09,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-23 02:29:09,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980807298] [2021-11-23 02:29:09,018 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:29:09,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-23 02:29:09,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:29:09,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-23 02:29:09,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-11-23 02:29:09,020 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 16 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:29:09,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:29:09,067 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-11-23 02:29:09,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 02:29:09,068 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 16 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2021-11-23 02:29:09,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:29:09,069 INFO L225 Difference]: With dead ends: 34 [2021-11-23 02:29:09,069 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:29:09,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-11-23 02:29:09,070 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:29:09,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 141 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 26 Unchecked, 0.0s Time] [2021-11-23 02:29:09,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:29:09,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:29:09,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:29:09,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:29:09,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-11-23 02:29:09,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:29:09,072 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:29:09,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 16 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:29:09,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:29:09,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:29:09,074 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:29:09,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-23 02:29:09,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:29:09,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:29:10,324 INFO L858 garLoopResultBuilder]: For program point L259-2(lines 259 263) no Hoare annotation was computed. [2021-11-23 02:29:10,324 INFO L858 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 252 265) no Hoare annotation was computed. [2021-11-23 02:29:10,324 INFO L858 garLoopResultBuilder]: For program point L254-1(lines 254 258) no Hoare annotation was computed. [2021-11-23 02:29:10,324 INFO L854 garLoopResultBuilder]: At program point L254-2(lines 254 258) the Hoare annotation is: (= fabs_float_~x |fabs_float_#in~x|) [2021-11-23 02:29:10,325 INFO L858 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 252 265) no Hoare annotation was computed. [2021-11-23 02:29:10,325 INFO L861 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 252 265) the Hoare annotation is: true [2021-11-23 02:29:10,325 INFO L858 garLoopResultBuilder]: For program point L259(lines 259 263) no Hoare annotation was computed. [2021-11-23 02:29:10,325 INFO L858 garLoopResultBuilder]: For program point L259-1(lines 252 265) no Hoare annotation was computed. [2021-11-23 02:29:10,325 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 188) no Hoare annotation was computed. [2021-11-23 02:29:10,325 INFO L858 garLoopResultBuilder]: For program point copysign_floatEXIT(lines 177 195) no Hoare annotation was computed. [2021-11-23 02:29:10,325 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 177 195) no Hoare annotation was computed. [2021-11-23 02:29:10,325 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 193) no Hoare annotation was computed. [2021-11-23 02:29:10,325 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 177 195) no Hoare annotation was computed. [2021-11-23 02:29:10,326 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 189 193) no Hoare annotation was computed. [2021-11-23 02:29:10,326 INFO L861 garLoopResultBuilder]: At program point copysign_floatENTRY(lines 177 195) the Hoare annotation is: true [2021-11-23 02:29:10,326 INFO L858 garLoopResultBuilder]: For program point L179-1(lines 179 183) no Hoare annotation was computed. [2021-11-23 02:29:10,326 INFO L861 garLoopResultBuilder]: At program point L179-2(lines 179 183) the Hoare annotation is: true [2021-11-23 02:29:10,326 INFO L858 garLoopResultBuilder]: For program point copysign_floatFINAL(lines 177 195) no Hoare annotation was computed. [2021-11-23 02:29:10,326 INFO L854 garLoopResultBuilder]: At program point L597(lines 589 598) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_powf_~iy~2#1| (_ bv2139095040 32)) (= |ULTIMATE.start_isinf_float_#res#1| (_ bv1 32))) [2021-11-23 02:29:10,326 INFO L858 garLoopResultBuilder]: For program point L531(lines 531 533) no Hoare annotation was computed. [2021-11-23 02:29:10,326 INFO L858 garLoopResultBuilder]: For program point L531-2(lines 522 534) no Hoare annotation was computed. [2021-11-23 02:29:10,326 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 533) no Hoare annotation was computed. [2021-11-23 02:29:10,326 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 433 437) no Hoare annotation was computed. [2021-11-23 02:29:10,327 INFO L858 garLoopResultBuilder]: For program point L367(lines 367 368) no Hoare annotation was computed. [2021-11-23 02:29:10,327 INFO L854 garLoopResultBuilder]: At program point L433-2(lines 433 437) the Hoare annotation is: false [2021-11-23 02:29:10,327 INFO L858 garLoopResultBuilder]: For program point L170-1(lines 170 174) no Hoare annotation was computed. [2021-11-23 02:29:10,327 INFO L854 garLoopResultBuilder]: At program point L170-2(lines 170 174) the Hoare annotation is: false [2021-11-23 02:29:10,327 INFO L858 garLoopResultBuilder]: For program point L170-3(lines 170 174) no Hoare annotation was computed. [2021-11-23 02:29:10,327 INFO L858 garLoopResultBuilder]: For program point L501(lines 501 502) no Hoare annotation was computed. [2021-11-23 02:29:10,327 INFO L858 garLoopResultBuilder]: For program point L402(lines 402 410) no Hoare annotation was computed. [2021-11-23 02:29:10,327 INFO L858 garLoopResultBuilder]: For program point L402-1(lines 402 410) no Hoare annotation was computed. [2021-11-23 02:29:10,328 INFO L858 garLoopResultBuilder]: For program point L303-1(lines 303 307) no Hoare annotation was computed. [2021-11-23 02:29:10,328 INFO L854 garLoopResultBuilder]: At program point L303-2(lines 303 307) the Hoare annotation is: (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_fabs_float_~#sf_u~6.base_10| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (let ((.cse0 (select (select |#memory_int| |v_fabs_float_~#sf_u~6.base_10|) (_ bv0 32)))) (and (= .cse0 (bvand (_ bv2147483647 32) v_arrayElimCell_1)) (fp.lt (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) ((_ to_fp 8 24) currentRoundingMode (_ bv1 32))) (= |ULTIMATE.start___ieee754_powf_~x#1| (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1))) (= |ULTIMATE.start___ieee754_powf_~y#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))))) [2021-11-23 02:29:10,328 INFO L858 garLoopResultBuilder]: For program point L238(lines 238 243) no Hoare annotation was computed. [2021-11-23 02:29:10,328 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 205 209) no Hoare annotation was computed. [2021-11-23 02:29:10,328 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 140) no Hoare annotation was computed. [2021-11-23 02:29:10,329 INFO L854 garLoopResultBuilder]: At program point L205-2(lines 205 209) the Hoare annotation is: false [2021-11-23 02:29:10,329 INFO L858 garLoopResultBuilder]: For program point L205-3(lines 205 209) no Hoare annotation was computed. [2021-11-23 02:29:10,329 INFO L858 garLoopResultBuilder]: For program point L139-2(lines 139 140) no Hoare annotation was computed. [2021-11-23 02:29:10,329 INFO L858 garLoopResultBuilder]: For program point L503(lines 503 507) no Hoare annotation was computed. [2021-11-23 02:29:10,329 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 297 586) no Hoare annotation was computed. [2021-11-23 02:29:10,330 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 343) no Hoare annotation was computed. [2021-11-23 02:29:10,330 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 242) no Hoare annotation was computed. [2021-11-23 02:29:10,330 INFO L858 garLoopResultBuilder]: For program point L438(lines 438 442) no Hoare annotation was computed. [2021-11-23 02:29:10,330 INFO L858 garLoopResultBuilder]: For program point L438-1(lines 398 499) no Hoare annotation was computed. [2021-11-23 02:29:10,330 INFO L858 garLoopResultBuilder]: For program point L405-1(lines 405 409) no Hoare annotation was computed. [2021-11-23 02:29:10,330 INFO L854 garLoopResultBuilder]: At program point L405-2(lines 405 409) the Hoare annotation is: false [2021-11-23 02:29:10,330 INFO L854 garLoopResultBuilder]: At program point L240(line 240) the Hoare annotation is: false [2021-11-23 02:29:10,331 INFO L858 garLoopResultBuilder]: For program point L240-1(line 240) no Hoare annotation was computed. [2021-11-23 02:29:10,331 INFO L858 garLoopResultBuilder]: For program point L538(lines 538 550) no Hoare annotation was computed. [2021-11-23 02:29:10,331 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 571 575) no Hoare annotation was computed. [2021-11-23 02:29:10,331 INFO L854 garLoopResultBuilder]: At program point L571-2(lines 571 575) the Hoare annotation is: false [2021-11-23 02:29:10,331 INFO L858 garLoopResultBuilder]: For program point L538-2(lines 538 550) no Hoare annotation was computed. [2021-11-23 02:29:10,331 INFO L858 garLoopResultBuilder]: For program point L571-3(lines 571 575) no Hoare annotation was computed. [2021-11-23 02:29:10,331 INFO L858 garLoopResultBuilder]: For program point L472-1(lines 472 476) no Hoare annotation was computed. [2021-11-23 02:29:10,331 INFO L854 garLoopResultBuilder]: At program point L472-2(lines 472 476) the Hoare annotation is: false [2021-11-23 02:29:10,332 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 374) no Hoare annotation was computed. [2021-11-23 02:29:10,332 INFO L858 garLoopResultBuilder]: For program point L340(lines 340 343) no Hoare annotation was computed. [2021-11-23 02:29:10,332 INFO L854 garLoopResultBuilder]: At program point L175(lines 111 176) the Hoare annotation is: false [2021-11-23 02:29:10,332 INFO L858 garLoopResultBuilder]: For program point L341(line 341) no Hoare annotation was computed. [2021-11-23 02:29:10,332 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 312) no Hoare annotation was computed. [2021-11-23 02:29:10,332 INFO L858 garLoopResultBuilder]: For program point L308-1(lines 297 586) no Hoare annotation was computed. [2021-11-23 02:29:10,333 INFO L858 garLoopResultBuilder]: For program point L341-2(line 341) no Hoare annotation was computed. [2021-11-23 02:29:10,333 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 308 312) no Hoare annotation was computed. [2021-11-23 02:29:10,333 INFO L854 garLoopResultBuilder]: At program point L242(line 242) the Hoare annotation is: false [2021-11-23 02:29:10,333 INFO L858 garLoopResultBuilder]: For program point L242-1(line 242) no Hoare annotation was computed. [2021-11-23 02:29:10,333 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 499) no Hoare annotation was computed. [2021-11-23 02:29:10,333 INFO L858 garLoopResultBuilder]: For program point L375-2(lines 375 499) no Hoare annotation was computed. [2021-11-23 02:29:10,334 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 512) no Hoare annotation was computed. [2021-11-23 02:29:10,334 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 541 545) no Hoare annotation was computed. [2021-11-23 02:29:10,334 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 297 586) no Hoare annotation was computed. [2021-11-23 02:29:10,334 INFO L854 garLoopResultBuilder]: At program point L541-2(lines 541 545) the Hoare annotation is: false [2021-11-23 02:29:10,334 INFO L858 garLoopResultBuilder]: For program point L508-2(lines 508 512) no Hoare annotation was computed. [2021-11-23 02:29:10,334 INFO L858 garLoopResultBuilder]: For program point L541-3(lines 541 545) no Hoare annotation was computed. [2021-11-23 02:29:10,334 INFO L858 garLoopResultBuilder]: For program point L343(line 343) no Hoare annotation was computed. [2021-11-23 02:29:10,334 INFO L858 garLoopResultBuilder]: For program point L343-2(line 343) no Hoare annotation was computed. [2021-11-23 02:29:10,334 INFO L858 garLoopResultBuilder]: For program point L443(lines 443 447) no Hoare annotation was computed. [2021-11-23 02:29:10,335 INFO L858 garLoopResultBuilder]: For program point L443-1(lines 398 499) no Hoare annotation was computed. [2021-11-23 02:29:10,335 INFO L858 garLoopResultBuilder]: For program point L377(lines 377 378) no Hoare annotation was computed. [2021-11-23 02:29:10,335 INFO L858 garLoopResultBuilder]: For program point L443-2(lines 443 447) no Hoare annotation was computed. [2021-11-23 02:29:10,335 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 213) no Hoare annotation was computed. [2021-11-23 02:29:10,335 INFO L858 garLoopResultBuilder]: For program point L245-1(lines 245 249) no Hoare annotation was computed. [2021-11-23 02:29:10,335 INFO L854 garLoopResultBuilder]: At program point L245-2(lines 245 249) the Hoare annotation is: false [2021-11-23 02:29:10,335 INFO L858 garLoopResultBuilder]: For program point L245-3(lines 245 249) no Hoare annotation was computed. [2021-11-23 02:29:10,335 INFO L858 garLoopResultBuilder]: For program point L477(lines 477 481) no Hoare annotation was computed. [2021-11-23 02:29:10,336 INFO L858 garLoopResultBuilder]: For program point L477-1(lines 398 499) no Hoare annotation was computed. [2021-11-23 02:29:10,336 INFO L858 garLoopResultBuilder]: For program point L477-2(lines 477 481) no Hoare annotation was computed. [2021-11-23 02:29:10,336 INFO L858 garLoopResultBuilder]: For program point L378(line 378) no Hoare annotation was computed. [2021-11-23 02:29:10,336 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 350) no Hoare annotation was computed. [2021-11-23 02:29:10,336 INFO L858 garLoopResultBuilder]: For program point L378-2(line 378) no Hoare annotation was computed. [2021-11-23 02:29:10,336 INFO L854 garLoopResultBuilder]: At program point L147-2(lines 147 156) the Hoare annotation is: false [2021-11-23 02:29:10,337 INFO L858 garLoopResultBuilder]: For program point L147-3(lines 111 176) no Hoare annotation was computed. [2021-11-23 02:29:10,337 INFO L858 garLoopResultBuilder]: For program point L577(lines 577 584) no Hoare annotation was computed. [2021-11-23 02:29:10,337 INFO L858 garLoopResultBuilder]: For program point L379(lines 379 380) no Hoare annotation was computed. [2021-11-23 02:29:10,337 INFO L858 garLoopResultBuilder]: For program point L346(lines 346 349) no Hoare annotation was computed. [2021-11-23 02:29:10,337 INFO L858 garLoopResultBuilder]: For program point L214(lines 214 215) no Hoare annotation was computed. [2021-11-23 02:29:10,337 INFO L854 garLoopResultBuilder]: At program point L611(line 611) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_main_~y~0#1|)) [2021-11-23 02:29:10,337 INFO L858 garLoopResultBuilder]: For program point L611-1(lines 611 620) no Hoare annotation was computed. [2021-11-23 02:29:10,338 INFO L858 garLoopResultBuilder]: For program point L611-3(lines 611 620) no Hoare annotation was computed. [2021-11-23 02:29:10,338 INFO L858 garLoopResultBuilder]: For program point L380(line 380) no Hoare annotation was computed. [2021-11-23 02:29:10,338 INFO L858 garLoopResultBuilder]: For program point L380-2(line 380) no Hoare annotation was computed. [2021-11-23 02:29:10,338 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 153) no Hoare annotation was computed. [2021-11-23 02:29:10,338 INFO L858 garLoopResultBuilder]: For program point L116-1(lines 116 120) no Hoare annotation was computed. [2021-11-23 02:29:10,339 INFO L858 garLoopResultBuilder]: For program point L149-2(lines 149 153) no Hoare annotation was computed. [2021-11-23 02:29:10,339 INFO L854 garLoopResultBuilder]: At program point L116-2(lines 116 120) the Hoare annotation is: false [2021-11-23 02:29:10,339 INFO L858 garLoopResultBuilder]: For program point L116-3(lines 116 120) no Hoare annotation was computed. [2021-11-23 02:29:10,339 INFO L858 garLoopResultBuilder]: For program point L216(lines 216 226) no Hoare annotation was computed. [2021-11-23 02:29:10,339 INFO L858 garLoopResultBuilder]: For program point L216-2(lines 216 226) no Hoare annotation was computed. [2021-11-23 02:29:10,339 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 548) no Hoare annotation was computed. [2021-11-23 02:29:10,340 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 580 584) no Hoare annotation was computed. [2021-11-23 02:29:10,340 INFO L854 garLoopResultBuilder]: At program point L580-2(lines 580 584) the Hoare annotation is: false [2021-11-23 02:29:10,340 INFO L858 garLoopResultBuilder]: For program point L547-2(lines 547 548) no Hoare annotation was computed. [2021-11-23 02:29:10,340 INFO L858 garLoopResultBuilder]: For program point L580-3(lines 577 584) no Hoare annotation was computed. [2021-11-23 02:29:10,340 INFO L858 garLoopResultBuilder]: For program point L415(lines 415 423) no Hoare annotation was computed. [2021-11-23 02:29:10,340 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 317) no Hoare annotation was computed. [2021-11-23 02:29:10,341 INFO L854 garLoopResultBuilder]: At program point L250(lines 201 251) the Hoare annotation is: false [2021-11-23 02:29:10,341 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 02:29:10,341 INFO L858 garLoopResultBuilder]: For program point L218-1(lines 218 222) no Hoare annotation was computed. [2021-11-23 02:29:10,341 INFO L854 garLoopResultBuilder]: At program point L218-2(lines 218 222) the Hoare annotation is: false [2021-11-23 02:29:10,341 INFO L858 garLoopResultBuilder]: For program point L218-3(lines 218 222) no Hoare annotation was computed. [2021-11-23 02:29:10,342 INFO L858 garLoopResultBuilder]: For program point L516-1(lines 516 520) no Hoare annotation was computed. [2021-11-23 02:29:10,342 INFO L854 garLoopResultBuilder]: At program point L516-2(lines 516 520) the Hoare annotation is: false [2021-11-23 02:29:10,342 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-11-23 02:29:10,342 INFO L858 garLoopResultBuilder]: For program point L516-3(lines 516 520) no Hoare annotation was computed. [2021-11-23 02:29:10,342 INFO L858 garLoopResultBuilder]: For program point L351(lines 351 352) no Hoare annotation was computed. [2021-11-23 02:29:10,342 INFO L858 garLoopResultBuilder]: For program point L616(lines 616 619) no Hoare annotation was computed. [2021-11-23 02:29:10,343 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 324) no Hoare annotation was computed. [2021-11-23 02:29:10,343 INFO L858 garLoopResultBuilder]: For program point L617(line 617) no Hoare annotation was computed. [2021-11-23 02:29:10,343 INFO L858 garLoopResultBuilder]: For program point L353(lines 353 356) no Hoare annotation was computed. [2021-11-23 02:29:10,343 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 323) no Hoare annotation was computed. [2021-11-23 02:29:10,343 INFO L854 garLoopResultBuilder]: At program point L353-2(lines 353 356) the Hoare annotation is: false [2021-11-23 02:29:10,344 INFO L854 garLoopResultBuilder]: At program point L585(lines 297 586) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_powf_~iy~2#1| (_ bv2139095040 32)) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_powf_#res#1| (fp.neg (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))))) [2021-11-23 02:29:10,344 INFO L858 garLoopResultBuilder]: For program point L552-1(lines 552 556) no Hoare annotation was computed. [2021-11-23 02:29:10,344 INFO L854 garLoopResultBuilder]: At program point L552-2(lines 552 556) the Hoare annotation is: false [2021-11-23 02:29:10,344 INFO L858 garLoopResultBuilder]: For program point L354(lines 354 355) no Hoare annotation was computed. [2021-11-23 02:29:10,344 INFO L858 garLoopResultBuilder]: For program point L387-1(lines 387 391) no Hoare annotation was computed. [2021-11-23 02:29:10,344 INFO L854 garLoopResultBuilder]: At program point L387-2(lines 387 391) the Hoare annotation is: false [2021-11-23 02:29:10,345 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 124) no Hoare annotation was computed. [2021-11-23 02:29:10,345 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:29:10,345 INFO L858 garLoopResultBuilder]: For program point L488-1(lines 488 492) no Hoare annotation was computed. [2021-11-23 02:29:10,345 INFO L854 garLoopResultBuilder]: At program point L488-2(lines 488 492) the Hoare annotation is: false [2021-11-23 02:29:10,345 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 225) no Hoare annotation was computed. [2021-11-23 02:29:10,345 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 167) no Hoare annotation was computed. [2021-11-23 02:29:10,346 INFO L858 garLoopResultBuilder]: For program point L522(lines 522 534) no Hoare annotation was computed. [2021-11-23 02:29:10,346 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 127) no Hoare annotation was computed. [2021-11-23 02:29:10,346 INFO L861 garLoopResultBuilder]: At program point L622(lines 600 623) the Hoare annotation is: true [2021-11-23 02:29:10,346 INFO L858 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2021-11-23 02:29:10,346 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 428) no Hoare annotation was computed. [2021-11-23 02:29:10,346 INFO L858 garLoopResultBuilder]: For program point L424-1(lines 398 499) no Hoare annotation was computed. [2021-11-23 02:29:10,347 INFO L858 garLoopResultBuilder]: For program point L358(line 358) no Hoare annotation was computed. [2021-11-23 02:29:10,347 INFO L858 garLoopResultBuilder]: For program point L424-2(lines 424 428) no Hoare annotation was computed. [2021-11-23 02:29:10,347 INFO L858 garLoopResultBuilder]: For program point L160(lines 160 166) no Hoare annotation was computed. [2021-11-23 02:29:10,347 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 02:29:10,347 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 561) no Hoare annotation was computed. [2021-11-23 02:29:10,347 INFO L858 garLoopResultBuilder]: For program point L557-1(lines 297 586) no Hoare annotation was computed. [2021-11-23 02:29:10,348 INFO L858 garLoopResultBuilder]: For program point L557-2(lines 557 561) no Hoare annotation was computed. [2021-11-23 02:29:10,348 INFO L858 garLoopResultBuilder]: For program point L458-1(lines 458 462) no Hoare annotation was computed. [2021-11-23 02:29:10,348 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 396) no Hoare annotation was computed. [2021-11-23 02:29:10,348 INFO L854 garLoopResultBuilder]: At program point L458-2(lines 458 462) the Hoare annotation is: false [2021-11-23 02:29:10,348 INFO L858 garLoopResultBuilder]: For program point L392-1(lines 375 398) no Hoare annotation was computed. [2021-11-23 02:29:10,348 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 335) no Hoare annotation was computed. [2021-11-23 02:29:10,349 INFO L858 garLoopResultBuilder]: For program point L392-2(lines 392 396) no Hoare annotation was computed. [2021-11-23 02:29:10,349 INFO L858 garLoopResultBuilder]: For program point L326-1(lines 297 586) no Hoare annotation was computed. [2021-11-23 02:29:10,349 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 129) no Hoare annotation was computed. [2021-11-23 02:29:10,349 INFO L858 garLoopResultBuilder]: For program point L591-1(lines 591 595) no Hoare annotation was computed. [2021-11-23 02:29:10,349 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 527) no Hoare annotation was computed. [2021-11-23 02:29:10,349 INFO L854 garLoopResultBuilder]: At program point L591-2(lines 591 595) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_powf_~iy~2#1| (_ bv2139095040 32)) (exists ((currentRoundingMode RoundingMode)) (= (fp.neg (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) |ULTIMATE.start_isinf_float_~x#1|))) [2021-11-23 02:29:10,350 INFO L858 garLoopResultBuilder]: For program point L591-3(lines 591 595) no Hoare annotation was computed. [2021-11-23 02:29:10,350 INFO L858 garLoopResultBuilder]: For program point L360(lines 360 371) no Hoare annotation was computed. [2021-11-23 02:29:10,350 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 334) no Hoare annotation was computed. [2021-11-23 02:29:10,350 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 229) no Hoare annotation was computed. [2021-11-23 02:29:10,350 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 165) no Hoare annotation was computed. [2021-11-23 02:29:10,350 INFO L858 garLoopResultBuilder]: For program point L526(lines 526 527) no Hoare annotation was computed. [2021-11-23 02:29:10,351 INFO L858 garLoopResultBuilder]: For program point L493(lines 493 497) no Hoare annotation was computed. [2021-11-23 02:29:10,351 INFO L858 garLoopResultBuilder]: For program point L493-1(lines 398 499) no Hoare annotation was computed. [2021-11-23 02:29:10,351 INFO L858 garLoopResultBuilder]: For program point L493-2(lines 493 497) no Hoare annotation was computed. [2021-11-23 02:29:10,351 INFO L854 garLoopResultBuilder]: At program point L229(line 229) the Hoare annotation is: false [2021-11-23 02:29:10,351 INFO L858 garLoopResultBuilder]: For program point L229-1(line 229) no Hoare annotation was computed. [2021-11-23 02:29:10,351 INFO L858 garLoopResultBuilder]: For program point L362(lines 362 363) no Hoare annotation was computed. [2021-11-23 02:29:10,352 INFO L858 garLoopResultBuilder]: For program point L329(lines 329 334) no Hoare annotation was computed. [2021-11-23 02:29:10,352 INFO L858 garLoopResultBuilder]: For program point L362-2(lines 360 371) no Hoare annotation was computed. [2021-11-23 02:29:10,352 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 237) no Hoare annotation was computed. [2021-11-23 02:29:10,352 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 02:29:10,352 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 617) no Hoare annotation was computed. [2021-11-23 02:29:10,352 INFO L858 garLoopResultBuilder]: For program point L231-1(lines 231 235) no Hoare annotation was computed. [2021-11-23 02:29:10,353 INFO L854 garLoopResultBuilder]: At program point L231-2(lines 231 235) the Hoare annotation is: false [2021-11-23 02:29:10,353 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 136) no Hoare annotation was computed. [2021-11-23 02:29:10,353 INFO L858 garLoopResultBuilder]: For program point L231-3(lines 231 235) no Hoare annotation was computed. [2021-11-23 02:29:10,353 INFO L858 garLoopResultBuilder]: For program point L132-2(lines 132 136) no Hoare annotation was computed. [2021-11-23 02:29:10,353 INFO L858 garLoopResultBuilder]: For program point L529(lines 529 533) no Hoare annotation was computed. [2021-11-23 02:29:10,353 INFO L858 garLoopResultBuilder]: For program point L463(lines 463 467) no Hoare annotation was computed. [2021-11-23 02:29:10,354 INFO L858 garLoopResultBuilder]: For program point L463-1(lines 398 499) no Hoare annotation was computed. [2021-11-23 02:29:10,354 INFO L858 garLoopResultBuilder]: For program point L463-2(lines 463 467) no Hoare annotation was computed. [2021-11-23 02:29:10,354 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 369) no Hoare annotation was computed. [2021-11-23 02:29:10,354 INFO L858 garLoopResultBuilder]: For program point L133-2(lines 133 134) no Hoare annotation was computed. [2021-11-23 02:29:10,354 INFO L854 garLoopResultBuilder]: At program point L133-3(lines 133 134) the Hoare annotation is: false [2021-11-23 02:29:10,354 INFO L858 garLoopResultBuilder]: For program point L133-4(lines 133 134) no Hoare annotation was computed. [2021-11-23 02:29:10,355 INFO L858 garLoopResultBuilder]: For program point L365(lines 365 368) no Hoare annotation was computed. [2021-11-23 02:29:10,355 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 333) no Hoare annotation was computed. [2021-11-23 02:29:10,358 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:29:10,360 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:29:10,373 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,374 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,375 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,375 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,377 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,377 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,378 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,378 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,379 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,381 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,381 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,381 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,381 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,381 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,383 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,384 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,384 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,384 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,384 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,384 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,385 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,385 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,385 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,385 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,385 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:29:10 BoogieIcfgContainer [2021-11-23 02:29:10,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:29:10,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:29:10,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:29:10,388 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:29:10,389 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:27:18" (3/4) ... [2021-11-23 02:29:10,392 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:29:10,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2021-11-23 02:29:10,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_float [2021-11-23 02:29:10,412 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-23 02:29:10,413 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-23 02:29:10,413 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 02:29:10,414 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:29:10,438 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2021-11-23 02:29:10,438 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_arrayElimCell_1 : bv32, v_fabs_float_~#sf_u~6.base_10 : bv32, currentRoundingMode : FloatRoundingMode :: ((unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_10][0bv32] == ~bvand32(2147483647bv32, v_arrayElimCell_1) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_10][0bv32][31:31], unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_10][0bv32][30:23], unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_10][0bv32][22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 1bv32))) && x == ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0])) && y == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) [2021-11-23 02:29:10,498 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:29:10,498 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:29:10,499 INFO L158 Benchmark]: Toolchain (without parser) took 138468.24ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 48.2MB in the beginning and 23.2MB in the end (delta: 24.9MB). Peak memory consumption was 42.1MB. Max. memory is 16.1GB. [2021-11-23 02:29:10,499 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 52.4MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:29:10,500 INFO L158 Benchmark]: CACSL2BoogieTranslator took 620.43ms. Allocated memory is still 71.3MB. Free memory was 48.1MB in the beginning and 40.9MB in the end (delta: 7.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 02:29:10,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 117.55ms. Allocated memory is still 71.3MB. Free memory was 40.9MB in the beginning and 36.3MB in the end (delta: 4.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:29:10,500 INFO L158 Benchmark]: Boogie Preprocessor took 114.87ms. Allocated memory is still 71.3MB. Free memory was 36.3MB in the beginning and 50.1MB in the end (delta: -13.7MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2021-11-23 02:29:10,501 INFO L158 Benchmark]: RCFGBuilder took 25946.08ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 50.1MB in the beginning and 60.7MB in the end (delta: -10.7MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2021-11-23 02:29:10,501 INFO L158 Benchmark]: TraceAbstraction took 111546.99ms. Allocated memory is still 88.1MB. Free memory was 60.2MB in the beginning and 37.4MB in the end (delta: 22.8MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2021-11-23 02:29:10,502 INFO L158 Benchmark]: Witness Printer took 110.38ms. Allocated memory is still 88.1MB. Free memory was 37.4MB in the beginning and 23.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 02:29:10,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 52.4MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 620.43ms. Allocated memory is still 71.3MB. Free memory was 48.1MB in the beginning and 40.9MB in the end (delta: 7.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 117.55ms. Allocated memory is still 71.3MB. Free memory was 40.9MB in the beginning and 36.3MB in the end (delta: 4.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.87ms. Allocated memory is still 71.3MB. Free memory was 36.3MB in the beginning and 50.1MB in the end (delta: -13.7MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * RCFGBuilder took 25946.08ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 50.1MB in the beginning and 60.7MB in the end (delta: -10.7MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * TraceAbstraction took 111546.99ms. Allocated memory is still 88.1MB. Free memory was 60.2MB in the beginning and 37.4MB in the end (delta: 22.8MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Witness Printer took 110.38ms. Allocated memory is still 88.1MB. Free memory was 37.4MB in the beginning and 23.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * 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] - 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] - 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] - 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] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] - 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[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - 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] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] - 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[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - 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: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 617]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 111.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 30.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 1390 SdHoareTripleChecker+Valid, 27.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1377 mSDsluCounter, 14361 SdHoareTripleChecker+Invalid, 26.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 996 IncrementalHoareTripleChecker+Unchecked, 12380 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 275 IncrementalHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 1981 mSDtfsCounter, 275 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 621 GetRequests, 482 SyntacticMatches, 5 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 32.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=0, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 826 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 49 PreInvPairs, 55 NumberOfFragments, 131 HoareAnnotationTreeSize, 49 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 35 FomulaSimplificationsInter, 150 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 10.0s SatisfiabilityAnalysisTime, 66.6s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 610 ConstructedInterpolants, 223 QuantifiedInterpolants, 6821 SizeOfPredicates, 105 NumberOfNonLiveVariables, 1716 ConjunctsInSsa, 131 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 472]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 254]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant [2021-11-23 02:29:10,517 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,517 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,517 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: iy == 2139095040bv32 && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.neg~FLOAT(~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 458]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 580]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: iy == 2139095040bv32 && \result == 1bv32 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 591]: Loop Invariant [2021-11-23 02:29:10,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: iy == 2139095040bv32 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.neg~FLOAT(~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) == x) - InvariantResult [Line: 433]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 303]: Loop Invariant [2021-11-23 02:29:10,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_fabs_float_~#sf_u~6.base_10,QUANTIFIED] [2021-11-23 02:29:10,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-23 02:29:10,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 02:29:10,526 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists v_arrayElimCell_1 : bv32, v_fabs_float_~#sf_u~6.base_10 : bv32, currentRoundingMode : FloatRoundingMode :: ((unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_10][0bv32] == ~bvand32(2147483647bv32, v_arrayElimCell_1) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_10][0bv32][31:31], unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_10][0bv32][30:23], unknown-#memory_int-unknown[v_fabs_float_~#sf_u~6.base_10][0bv32][22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 1bv32))) && x == ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0])) && y == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 405]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 02:29:10,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_114c2ab0-9f44-4afb-945c-545616589493/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE