./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:22:03,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:22:03,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:22:03,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:22:03,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:22:03,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:22:03,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:22:03,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:22:03,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:22:03,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:22:03,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:22:03,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:22:03,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:22:03,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:22:03,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:22:03,911 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:22:03,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:22:03,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:22:03,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:22:03,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:22:03,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:22:03,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:22:03,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:22:03,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:22:03,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:22:03,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:22:03,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:22:03,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:22:03,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:22:03,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:22:03,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:22:03,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:22:03,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:22:03,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:22:03,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:22:03,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:22:03,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:22:03,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:22:03,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:22:03,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:22:03,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:22:03,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 20:22:03,967 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:22:03,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:22:03,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:22:03,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:22:03,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:22:03,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:22:03,970 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:22:03,970 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:22:03,971 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:22:03,971 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:22:03,971 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:22:03,971 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:22:03,972 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:22:03,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:22:03,972 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:22:03,973 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:22:03,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:22:03,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:22:03,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:22:03,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:22:03,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:22:03,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:22:03,974 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:22:03,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:22:03,975 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:22:03,975 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:22:03,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:22:03,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:22:03,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:22:03,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:22:03,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:22:03,978 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:22:03,978 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2022-11-18 20:22:04,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:22:04,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:22:04,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:22:04,257 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:22:04,258 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:22:04,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2022-11-18 20:22:04,340 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/data/4f7dbe53b/57339637ed924f8c9ebb269eb971f7a2/FLAG0b71b061c [2022-11-18 20:22:04,851 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:22:04,858 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2022-11-18 20:22:04,865 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/data/4f7dbe53b/57339637ed924f8c9ebb269eb971f7a2/FLAG0b71b061c [2022-11-18 20:22:05,175 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/data/4f7dbe53b/57339637ed924f8c9ebb269eb971f7a2 [2022-11-18 20:22:05,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:22:05,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:22:05,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:22:05,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:22:05,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:22:05,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:22:05" (1/1) ... [2022-11-18 20:22:05,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c54a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05, skipping insertion in model container [2022-11-18 20:22:05,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:22:05" (1/1) ... [2022-11-18 20:22:05,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:22:05,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:22:05,439 WARN L234 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_50ba179c-7660-45e7-8ca1-008e37375455/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2022-11-18 20:22:05,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:22:05,506 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:22:05,528 WARN L234 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_50ba179c-7660-45e7-8ca1-008e37375455/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2022-11-18 20:22:05,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:22:05,608 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:22:05,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05 WrapperNode [2022-11-18 20:22:05,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:22:05,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:22:05,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:22:05,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:22:05,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05" (1/1) ... [2022-11-18 20:22:05,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05" (1/1) ... [2022-11-18 20:22:05,705 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 10, calls inlined = 8, statements flattened = 374 [2022-11-18 20:22:05,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:22:05,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:22:05,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:22:05,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:22:05,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05" (1/1) ... [2022-11-18 20:22:05,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05" (1/1) ... [2022-11-18 20:22:05,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05" (1/1) ... [2022-11-18 20:22:05,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05" (1/1) ... [2022-11-18 20:22:05,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05" (1/1) ... [2022-11-18 20:22:05,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05" (1/1) ... [2022-11-18 20:22:05,760 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05" (1/1) ... [2022-11-18 20:22:05,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05" (1/1) ... [2022-11-18 20:22:05,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:22:05,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:22:05,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:22:05,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:22:05,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05" (1/1) ... [2022-11-18 20:22:05,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:05,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:05,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:05,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:22:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:22:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:22:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:22:05,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:22:05,971 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:22:05,973 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:22:06,575 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:22:06,582 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:22:06,582 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-18 20:22:06,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:22:06 BoogieIcfgContainer [2022-11-18 20:22:06,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:22:06,586 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:22:06,586 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:22:06,590 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:22:06,591 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:22:06,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:22:05" (1/3) ... [2022-11-18 20:22:06,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60458162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:22:06, skipping insertion in model container [2022-11-18 20:22:06,592 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:22:06,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:05" (2/3) ... [2022-11-18 20:22:06,593 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60458162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:22:06, skipping insertion in model container [2022-11-18 20:22:06,593 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:22:06,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:22:06" (3/3) ... [2022-11-18 20:22:06,595 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2022-11-18 20:22:06,672 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:22:06,672 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:22:06,673 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:22:06,673 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:22:06,673 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:22:06,673 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:22:06,673 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:22:06,674 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:22:06,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.7864077669902914) internal successors, (184), 103 states have internal predecessors, (184), 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) [2022-11-18 20:22:06,711 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-18 20:22:06,711 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:22:06,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:22:06,717 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 20:22:06,718 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:22:06,718 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:22:06,719 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.7864077669902914) internal successors, (184), 103 states have internal predecessors, (184), 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) [2022-11-18 20:22:06,724 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-18 20:22:06,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:22:06,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:22:06,725 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 20:22:06,725 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:22:06,733 INFO L748 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 29#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 65#L29true assume !(0 == base2flt_~m#1 % 4294967296); 87#L35true assume !(base2flt_~m#1 % 4294967296 < 16777216); 43#L57-2true [2022-11-18 20:22:06,734 INFO L750 eck$LassoCheckResult]: Loop: 43#L57-2true assume !false; 28#L58true assume base2flt_~m#1 % 4294967296 >= 33554432; 77#L59true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 43#L57-2true [2022-11-18 20:22:06,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:06,740 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2022-11-18 20:22:06,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:06,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291160797] [2022-11-18 20:22:06,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:06,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:07,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:07,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:07,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291160797] [2022-11-18 20:22:07,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291160797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:07,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:07,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:22:07,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985084453] [2022-11-18 20:22:07,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:07,023 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:22:07,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:07,040 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2022-11-18 20:22:07,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:07,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611264695] [2022-11-18 20:22:07,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:07,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:07,052 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:22:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:07,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:22:07,181 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:07,182 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:07,182 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:07,182 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:07,182 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:22:07,182 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:07,183 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:07,183 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:07,183 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2022-11-18 20:22:07,183 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:07,183 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:07,221 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:07,265 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:07,434 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:07,435 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:22:07,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:07,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:07,443 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:07,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:22:07,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:07,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 20:22:07,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:07,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:07,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:07,487 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:07,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:22:07,496 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:07,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 20:22:07,532 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:22:07,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:07,541 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:07,541 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:07,541 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:07,542 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:07,542 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:22:07,542 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:07,542 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:07,542 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:07,542 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2022-11-18 20:22:07,542 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:07,542 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:07,544 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:07,557 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:07,681 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:07,687 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:22:07,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:07,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:07,696 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:07,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:22:07,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:22:07,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:22:07,723 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:22:07,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:22:07,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:22:07,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:22:07,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:22:07,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:22:07,739 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:22:07,747 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:22:07,748 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:22:07,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:07,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:07,755 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:07,757 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:22:07,758 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:22:07,758 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:22:07,759 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-18 20:22:07,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:22:07,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:07,774 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:22:07,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:07,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:22:07,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:07,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:22:07,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:07,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:07,930 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-18 20:22:07,936 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 104 states, 103 states have (on average 1.7864077669902914) internal successors, (184), 103 states have internal predecessors, (184), 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-18 20:22:08,069 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 104 states, 103 states have (on average 1.7864077669902914) internal successors, (184), 103 states have internal predecessors, (184), 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). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) Result 309 states and 542 transitions. Complement of second has 6 states. [2022-11-18 20:22:08,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 20:22:08,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-18 20:22:08,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2022-11-18 20:22:08,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-18 20:22:08,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:08,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-18 20:22:08,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:08,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-18 20:22:08,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:08,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 309 states and 542 transitions. [2022-11-18 20:22:08,088 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2022-11-18 20:22:08,093 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 309 states to 103 states and 168 transitions. [2022-11-18 20:22:08,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 99 [2022-11-18 20:22:08,095 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 100 [2022-11-18 20:22:08,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 168 transitions. [2022-11-18 20:22:08,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:22:08,096 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 168 transitions. [2022-11-18 20:22:08,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 168 transitions. [2022-11-18 20:22:08,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 88. [2022-11-18 20:22:08,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 88 states have (on average 1.6818181818181819) internal successors, (148), 87 states have internal predecessors, (148), 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) [2022-11-18 20:22:08,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 148 transitions. [2022-11-18 20:22:08,129 INFO L240 hiAutomatonCegarLoop]: Abstraction has 88 states and 148 transitions. [2022-11-18 20:22:08,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:08,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:22:08,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:22:08,134 INFO L87 Difference]: Start difference. First operand 88 states and 148 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-18 20:22:08,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:08,244 INFO L93 Difference]: Finished difference Result 51 states and 72 transitions. [2022-11-18 20:22:08,244 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 72 transitions. [2022-11-18 20:22:08,246 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-18 20:22:08,249 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 72 transitions. [2022-11-18 20:22:08,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2022-11-18 20:22:08,249 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51 [2022-11-18 20:22:08,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 72 transitions. [2022-11-18 20:22:08,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:22:08,250 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 72 transitions. [2022-11-18 20:22:08,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 72 transitions. [2022-11-18 20:22:08,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2022-11-18 20:22:08,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 44 states have internal predecessors, (66), 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) [2022-11-18 20:22:08,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2022-11-18 20:22:08,259 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-18 20:22:08,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:22:08,261 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-18 20:22:08,261 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:22:08,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 66 transitions. [2022-11-18 20:22:08,265 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-18 20:22:08,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:22:08,266 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:22:08,266 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:08,266 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:22:08,266 INFO L748 eck$LassoCheckResult]: Stem: 633#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 603#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 604#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 636#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 608#L80 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 609#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 610#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 611#L57-5 [2022-11-18 20:22:08,267 INFO L750 eck$LassoCheckResult]: Loop: 611#L57-5 assume !false; 613#L58-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 614#L59-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 611#L57-5 [2022-11-18 20:22:08,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:08,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1807305057, now seen corresponding path program 1 times [2022-11-18 20:22:08,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:08,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131062569] [2022-11-18 20:22:08,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:08,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:08,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:08,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:08,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131062569] [2022-11-18 20:22:08,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131062569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:08,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:08,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:22:08,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250393979] [2022-11-18 20:22:08,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:08,418 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:22:08,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:08,419 INFO L85 PathProgramCache]: Analyzing trace with hash 159017, now seen corresponding path program 1 times [2022-11-18 20:22:08,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:08,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844054934] [2022-11-18 20:22:08,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:08,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:08,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:22:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:08,441 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:22:08,471 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:08,472 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:08,472 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:08,472 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:08,472 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:22:08,472 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:08,472 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:08,473 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:08,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2022-11-18 20:22:08,473 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:08,473 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:08,474 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:08,481 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:08,583 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:08,583 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:22:08,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:08,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:08,590 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:08,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 20:22:08,612 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:22:08,612 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:08,636 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:22:08,636 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:22:08,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:08,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:08,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:08,658 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:08,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:22:08,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:08,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-18 20:22:08,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 20:22:08,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-11-18 20:22:08,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:08,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:08,725 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:08,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 20:22:08,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:22:08,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:08,771 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:22:08,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-11-18 20:22:08,780 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:08,780 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:08,780 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:08,780 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:08,780 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:22:08,780 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:08,780 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:08,781 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:08,781 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2022-11-18 20:22:08,781 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:08,781 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:08,782 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:08,791 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:08,908 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:08,908 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:22:08,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:08,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:08,912 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:08,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:22:08,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:22:08,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:22:08,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:22:08,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:22:08,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:22:08,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 20:22:08,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:22:08,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:22:08,956 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:22:08,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:08,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:08,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:08,969 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:08,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:22:08,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:22:08,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:22:08,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:22:08,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:22:08,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:22:08,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:22:08,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:22:08,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 20:22:09,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:22:09,010 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:22:09,010 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:22:09,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:09,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:09,011 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:09,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 20:22:09,019 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:22:09,019 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:22:09,020 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:22:09,020 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-18 20:22:09,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-11-18 20:22:09,026 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:22:09,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:09,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:22:09,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:09,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:22:09,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:09,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:09,080 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-18 20:22:09,080 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 66 transitions. cyclomatic complexity: 27 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-18 20:22:09,103 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 66 transitions. cyclomatic complexity: 27. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) Result 88 states and 130 transitions. Complement of second has 5 states. [2022-11-18 20:22:09,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 20:22:09,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-18 20:22:09,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2022-11-18 20:22:09,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-18 20:22:09,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:09,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-18 20:22:09,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:09,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-18 20:22:09,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:09,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 130 transitions. [2022-11-18 20:22:09,107 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2022-11-18 20:22:09,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 80 states and 117 transitions. [2022-11-18 20:22:09,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2022-11-18 20:22:09,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2022-11-18 20:22:09,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 117 transitions. [2022-11-18 20:22:09,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:22:09,108 INFO L218 hiAutomatonCegarLoop]: Abstraction has 80 states and 117 transitions. [2022-11-18 20:22:09,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 117 transitions. [2022-11-18 20:22:09,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 48. [2022-11-18 20:22:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 47 states have internal predecessors, (70), 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) [2022-11-18 20:22:09,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2022-11-18 20:22:09,111 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 70 transitions. [2022-11-18 20:22:09,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:09,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:22:09,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:22:09,112 INFO L87 Difference]: Start difference. First operand 48 states and 70 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-18 20:22:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:09,170 INFO L93 Difference]: Finished difference Result 46 states and 64 transitions. [2022-11-18 20:22:09,170 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 64 transitions. [2022-11-18 20:22:09,171 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-18 20:22:09,171 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 64 transitions. [2022-11-18 20:22:09,172 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2022-11-18 20:22:09,172 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2022-11-18 20:22:09,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 64 transitions. [2022-11-18 20:22:09,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:22:09,172 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 64 transitions. [2022-11-18 20:22:09,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 64 transitions. [2022-11-18 20:22:09,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2022-11-18 20:22:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 41 states have internal predecessors, (59), 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) [2022-11-18 20:22:09,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 59 transitions. [2022-11-18 20:22:09,174 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-11-18 20:22:09,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:22:09,176 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-11-18 20:22:09,176 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 20:22:09,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 59 transitions. [2022-11-18 20:22:09,176 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-18 20:22:09,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:22:09,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:22:09,177 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:09,177 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:22:09,177 INFO L748 eck$LassoCheckResult]: Stem: 906#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 878#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 879#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 908#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 883#L80 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 884#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 885#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 886#L47-3 [2022-11-18 20:22:09,177 INFO L750 eck$LassoCheckResult]: Loop: 886#L47-3 assume !false; 905#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 897#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 886#L47-3 [2022-11-18 20:22:09,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:09,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1807305031, now seen corresponding path program 1 times [2022-11-18 20:22:09,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:09,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992072918] [2022-11-18 20:22:09,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:09,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:09,186 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:22:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:09,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:22:09,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:09,196 INFO L85 PathProgramCache]: Analyzing trace with hash 133258, now seen corresponding path program 1 times [2022-11-18 20:22:09,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:09,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417977099] [2022-11-18 20:22:09,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:09,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:09,200 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:22:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:09,204 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:22:09,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:09,204 INFO L85 PathProgramCache]: Analyzing trace with hash -285740668, now seen corresponding path program 1 times [2022-11-18 20:22:09,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:09,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221299376] [2022-11-18 20:22:09,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:09,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:09,213 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:22:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:09,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:22:09,252 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:09,252 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:09,252 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:09,253 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:09,253 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:22:09,253 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:09,253 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:09,253 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:09,253 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2022-11-18 20:22:09,253 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:09,253 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:09,254 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:09,261 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:09,337 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:09,337 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:22:09,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:09,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:09,338 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:09,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:22:09,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:09,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 20:22:09,392 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:22:09,392 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:22:09,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:09,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:09,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:09,408 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:09,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:22:09,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:09,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 20:22:09,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:09,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:09,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:09,454 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:09,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:22:09,465 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:09,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 20:22:09,515 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:22:09,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:09,523 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:09,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:09,524 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:09,524 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:09,524 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:22:09,524 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:09,524 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:09,524 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:09,524 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2022-11-18 20:22:09,524 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:09,524 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:09,525 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:09,533 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:09,609 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:09,609 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:22:09,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:09,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:09,612 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:09,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 20:22:09,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:22:09,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:22:09,636 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:22:09,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:22:09,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:22:09,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:22:09,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:22:09,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:22:09,648 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:22:09,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:09,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:09,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:09,661 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:09,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:22:09,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 20:22:09,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:22:09,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:22:09,681 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:22:09,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:22:09,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:22:09,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:22:09,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:22:09,692 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:22:09,695 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:22:09,695 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:22:09,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:09,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:09,698 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:09,704 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:22:09,705 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:22:09,705 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:22:09,705 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-18 20:22:09,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 20:22:09,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-11-18 20:22:09,715 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:22:09,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:09,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:22:09,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:09,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:22:09,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:09,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:09,812 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:22:09,812 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 59 transitions. cyclomatic complexity: 22 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-18 20:22:09,831 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 59 transitions. cyclomatic complexity: 22. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) Result 54 states and 77 transitions. Complement of second has 5 states. [2022-11-18 20:22:09,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 20:22:09,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-11-18 20:22:09,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-11-18 20:22:09,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-18 20:22:09,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:09,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-18 20:22:09,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:09,834 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-18 20:22:09,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:09,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 77 transitions. [2022-11-18 20:22:09,835 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-18 20:22:09,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 46 states and 64 transitions. [2022-11-18 20:22:09,836 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2022-11-18 20:22:09,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-18 20:22:09,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 64 transitions. [2022-11-18 20:22:09,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:09,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:22:09,856 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 64 transitions. [2022-11-18 20:22:09,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 64 transitions. [2022-11-18 20:22:09,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2022-11-18 20:22:09,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4) internal successors, (63), 44 states have internal predecessors, (63), 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) [2022-11-18 20:22:09,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2022-11-18 20:22:09,860 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2022-11-18 20:22:09,867 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 63 transitions. [2022-11-18 20:22:09,867 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 20:22:09,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 63 transitions. [2022-11-18 20:22:09,868 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-18 20:22:09,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:22:09,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:22:09,869 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:09,869 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:22:09,869 INFO L748 eck$LassoCheckResult]: Stem: 1055#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 1024#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1025#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1057#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1029#L80 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1030#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1031#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1032#L47-3 assume !false; 1053#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1044#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1045#L80-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1051#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1046#L35-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1047#L47-5 [2022-11-18 20:22:09,870 INFO L750 eck$LassoCheckResult]: Loop: 1047#L47-5 assume !false; 1052#L38-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1059#L47-4 assume base2flt_~m#1 % 4294967296 < 16777216; 1047#L47-5 [2022-11-18 20:22:09,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:09,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:09,875 INFO L85 PathProgramCache]: Analyzing trace with hash 124962288, now seen corresponding path program 1 times [2022-11-18 20:22:09,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:09,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078499321] [2022-11-18 20:22:09,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:09,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:09,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:09,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078499321] [2022-11-18 20:22:09,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078499321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:09,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:09,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:22:09,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601250655] [2022-11-18 20:22:09,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:09,933 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:22:09,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:09,933 INFO L85 PathProgramCache]: Analyzing trace with hash 217663, now seen corresponding path program 1 times [2022-11-18 20:22:09,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:09,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143930602] [2022-11-18 20:22:09,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:09,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:09,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:22:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:09,942 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:22:09,972 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:09,972 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:09,972 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:09,972 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:09,973 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:22:09,973 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:09,973 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:09,973 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:09,973 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2022-11-18 20:22:09,973 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:09,974 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:09,975 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:09,981 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:10,056 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:10,056 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:22:10,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:10,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:10,060 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:10,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:22:10,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:10,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 20:22:10,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:10,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:10,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:10,105 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:10,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 20:22:10,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:22:10,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:10,147 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:22:10,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:10,155 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:10,156 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:10,156 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:10,156 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:10,156 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:22:10,156 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:10,156 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:10,156 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:10,156 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2022-11-18 20:22:10,157 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:10,157 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:10,158 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:10,164 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:10,239 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:10,239 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:22:10,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:10,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:10,241 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:10,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:22:10,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:22:10,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:22:10,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:22:10,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:22:10,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:22:10,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:22:10,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:22:10,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 20:22:10,283 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:22:10,288 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:22:10,288 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:22:10,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:10,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:10,292 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:10,296 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:22:10,296 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:22:10,297 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:22:10,297 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-18 20:22:10,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 20:22:10,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:10,303 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:22:10,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:10,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:22:10,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:10,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:22:10,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:10,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:10,388 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:22:10,388 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 63 transitions. cyclomatic complexity: 23 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-18 20:22:10,409 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 63 transitions. cyclomatic complexity: 23. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) Result 73 states and 102 transitions. Complement of second has 5 states. [2022-11-18 20:22:10,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 20:22:10,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-18 20:22:10,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2022-11-18 20:22:10,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 68 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-18 20:22:10,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:10,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 68 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-18 20:22:10,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:10,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 68 transitions. Stem has 13 letters. Loop has 6 letters. [2022-11-18 20:22:10,413 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:10,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 102 transitions. [2022-11-18 20:22:10,414 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-18 20:22:10,414 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 65 states and 89 transitions. [2022-11-18 20:22:10,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-11-18 20:22:10,415 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-11-18 20:22:10,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 89 transitions. [2022-11-18 20:22:10,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:22:10,416 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 89 transitions. [2022-11-18 20:22:10,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 89 transitions. [2022-11-18 20:22:10,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 48. [2022-11-18 20:22:10,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 47 states have internal predecessors, (67), 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) [2022-11-18 20:22:10,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2022-11-18 20:22:10,419 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 67 transitions. [2022-11-18 20:22:10,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:10,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:22:10,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:22:10,420 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-18 20:22:10,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:10,453 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2022-11-18 20:22:10,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 68 transitions. [2022-11-18 20:22:10,454 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-18 20:22:10,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 49 states and 67 transitions. [2022-11-18 20:22:10,455 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-18 20:22:10,455 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-11-18 20:22:10,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2022-11-18 20:22:10,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:22:10,456 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2022-11-18 20:22:10,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2022-11-18 20:22:10,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2022-11-18 20:22:10,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.375) internal successors, (66), 47 states have internal predecessors, (66), 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) [2022-11-18 20:22:10,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2022-11-18 20:22:10,458 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 66 transitions. [2022-11-18 20:22:10,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:22:10,460 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 66 transitions. [2022-11-18 20:22:10,460 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 20:22:10,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 66 transitions. [2022-11-18 20:22:10,461 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-18 20:22:10,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:22:10,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:22:10,462 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:10,462 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:22:10,462 INFO L748 eck$LassoCheckResult]: Stem: 1339#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 1307#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1308#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1343#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1312#L80 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1313#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1314#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1315#L47-3 assume !false; 1341#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1324#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1325#L47-3 assume !false; 1340#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1327#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1328#L80-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1334#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1329#L35-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1331#L57-8 [2022-11-18 20:22:10,463 INFO L750 eck$LassoCheckResult]: Loop: 1331#L57-8 assume !false; 1321#L58-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 1322#L59-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 1331#L57-8 [2022-11-18 20:22:10,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:10,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1441762439, now seen corresponding path program 1 times [2022-11-18 20:22:10,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:10,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851630952] [2022-11-18 20:22:10,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:10,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:10,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:10,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:10,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851630952] [2022-11-18 20:22:10,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851630952] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:22:10,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010489671] [2022-11-18 20:22:10,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:10,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:10,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:10,548 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:22:10,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-18 20:22:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:10,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:22:10,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:10,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:10,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:22:10,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:10,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010489671] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:22:10,674 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:22:10,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-18 20:22:10,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632232172] [2022-11-18 20:22:10,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:22:10,675 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:22:10,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:10,676 INFO L85 PathProgramCache]: Analyzing trace with hash 243422, now seen corresponding path program 1 times [2022-11-18 20:22:10,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:10,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047103288] [2022-11-18 20:22:10,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:10,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:10,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:22:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:10,689 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:22:10,722 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:10,722 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:10,722 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:10,722 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:10,723 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:22:10,723 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:10,723 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:10,723 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:10,723 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2022-11-18 20:22:10,723 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:10,723 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:10,724 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:10,731 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:10,828 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:10,828 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:22:10,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:10,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:10,829 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:10,833 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:22:10,833 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:10,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 20:22:10,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:10,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:10,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:10,869 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:10,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:22:10,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:10,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 20:22:10,912 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:22:10,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:10,920 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:10,920 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:10,920 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:10,920 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:10,921 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:22:10,921 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:10,921 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:10,921 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:10,921 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2022-11-18 20:22:10,921 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:10,921 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:10,922 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:10,928 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:11,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:11,036 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:11,036 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:22:11,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:11,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:11,040 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:11,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:22:11,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:22:11,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:22:11,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:22:11,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:22:11,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:22:11,059 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:22:11,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:22:11,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-18 20:22:11,073 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:22:11,076 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:22:11,076 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:22:11,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:11,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:11,078 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:11,085 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:22:11,085 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:22:11,085 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:22:11,085 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-18 20:22:11,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-18 20:22:11,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:11,097 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:22:11,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:11,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:22:11,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:11,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:22:11,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:11,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:11,168 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-18 20:22:11,168 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 66 transitions. cyclomatic complexity: 23 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-18 20:22:11,186 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 66 transitions. cyclomatic complexity: 23. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) Result 75 states and 104 transitions. Complement of second has 5 states. [2022-11-18 20:22:11,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 20:22:11,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-18 20:22:11,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2022-11-18 20:22:11,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-18 20:22:11,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:11,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 19 letters. Loop has 3 letters. [2022-11-18 20:22:11,189 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:11,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 16 letters. Loop has 6 letters. [2022-11-18 20:22:11,189 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:11,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 104 transitions. [2022-11-18 20:22:11,190 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-18 20:22:11,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 67 states and 91 transitions. [2022-11-18 20:22:11,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-11-18 20:22:11,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2022-11-18 20:22:11,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 91 transitions. [2022-11-18 20:22:11,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:22:11,192 INFO L218 hiAutomatonCegarLoop]: Abstraction has 67 states and 91 transitions. [2022-11-18 20:22:11,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 91 transitions. [2022-11-18 20:22:11,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 51. [2022-11-18 20:22:11,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 50 states have internal predecessors, (70), 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) [2022-11-18 20:22:11,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-11-18 20:22:11,195 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-11-18 20:22:11,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:11,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:22:11,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:22:11,196 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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) [2022-11-18 20:22:11,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:11,262 INFO L93 Difference]: Finished difference Result 93 states and 124 transitions. [2022-11-18 20:22:11,263 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 124 transitions. [2022-11-18 20:22:11,264 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-18 20:22:11,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 87 states and 118 transitions. [2022-11-18 20:22:11,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2022-11-18 20:22:11,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2022-11-18 20:22:11,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 118 transitions. [2022-11-18 20:22:11,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:22:11,266 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 118 transitions. [2022-11-18 20:22:11,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 118 transitions. [2022-11-18 20:22:11,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 63. [2022-11-18 20:22:11,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 62 states have internal predecessors, (88), 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) [2022-11-18 20:22:11,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2022-11-18 20:22:11,269 INFO L240 hiAutomatonCegarLoop]: Abstraction has 63 states and 88 transitions. [2022-11-18 20:22:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:22:11,270 INFO L428 stractBuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2022-11-18 20:22:11,270 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 20:22:11,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 88 transitions. [2022-11-18 20:22:11,271 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-18 20:22:11,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:22:11,271 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:22:11,272 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:11,272 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:22:11,272 INFO L748 eck$LassoCheckResult]: Stem: 1779#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 1743#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1744#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1781#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1748#L80 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1749#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1750#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1751#L47-3 assume !false; 1786#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1764#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1754#L73-1 assume 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216);base2flt_~m#1 := 0; 1755#L76-7 assume 0 == base2flt_~m#1 || base2flt_~m#1 == 16777216 * (128 + base2flt_~e#1);base2flt_~res~0#1 := 16777216 * (128 + base2flt_~e#1); 1770#L77-7 base2flt_~__retres4~0#1 := base2flt_~res~0#1; 1762#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1763#L80-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1771#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1735#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 1736#L80-2 main_#t~ret10#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1780#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 1745#L35-3 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1746#L57-11 [2022-11-18 20:22:11,272 INFO L750 eck$LassoCheckResult]: Loop: 1746#L57-11 assume !false; 1752#L58-3 assume base2flt_~m#1 % 4294967296 >= 33554432; 1753#L59-3 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 1746#L57-11 [2022-11-18 20:22:11,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:11,273 INFO L85 PathProgramCache]: Analyzing trace with hash -277950123, now seen corresponding path program 1 times [2022-11-18 20:22:11,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:11,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456886533] [2022-11-18 20:22:11,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:11,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:11,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:11,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:11,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456886533] [2022-11-18 20:22:11,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456886533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:11,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:11,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:22:11,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401121537] [2022-11-18 20:22:11,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:11,374 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:22:11,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:11,375 INFO L85 PathProgramCache]: Analyzing trace with hash 327827, now seen corresponding path program 1 times [2022-11-18 20:22:11,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:11,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447722788] [2022-11-18 20:22:11,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:11,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:11,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:22:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:11,390 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:22:11,420 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:11,420 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:11,421 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:11,421 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:11,421 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:22:11,421 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:11,421 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:11,421 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:11,421 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2022-11-18 20:22:11,422 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:11,422 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:11,422 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:11,430 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:11,536 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:11,537 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:22:11,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:11,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:11,538 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:11,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:22:11,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:11,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-18 20:22:11,567 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:22:11,568 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:22:11,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:11,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:11,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:11,577 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:11,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:22:11,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:11,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-18 20:22:11,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:11,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:11,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:11,600 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:11,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-18 20:22:11,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:22:11,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:11,637 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:22:11,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:11,646 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:11,646 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:11,647 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:11,647 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:11,647 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:22:11,647 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:11,647 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:11,647 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:11,647 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2022-11-18 20:22:11,647 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:11,647 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:11,648 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:11,656 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:11,759 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:11,759 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:22:11,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:11,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:11,762 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:11,772 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:22:11,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-18 20:22:11,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:22:11,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:22:11,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:22:11,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:22:11,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:22:11,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:22:11,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:22:11,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:22:11,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:11,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:11,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:11,825 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:11,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:22:11,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-18 20:22:11,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:22:11,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:22:11,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:22:11,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:22:11,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:22:11,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:22:11,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:22:11,856 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:22:11,859 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:22:11,859 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:22:11,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:11,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:11,863 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:11,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-18 20:22:11,866 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:22:11,866 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:22:11,866 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:22:11,866 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-18 20:22:11,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:11,876 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:22:11,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:11,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:22:11,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:11,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:22:11,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:11,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:11,954 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-18 20:22:11,954 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states and 88 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-18 20:22:11,960 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 63 states and 88 transitions. cyclomatic complexity: 30. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) Result 66 states and 92 transitions. Complement of second has 4 states. [2022-11-18 20:22:11,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 20:22:11,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-18 20:22:11,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2022-11-18 20:22:11,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 20 letters. Loop has 3 letters. [2022-11-18 20:22:11,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:11,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 23 letters. Loop has 3 letters. [2022-11-18 20:22:11,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:11,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 20 letters. Loop has 6 letters. [2022-11-18 20:22:11,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:11,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 92 transitions. [2022-11-18 20:22:11,963 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:22:11,964 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 60 states and 84 transitions. [2022-11-18 20:22:11,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2022-11-18 20:22:11,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-18 20:22:11,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 84 transitions. [2022-11-18 20:22:11,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:22:11,965 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 84 transitions. [2022-11-18 20:22:11,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 84 transitions. [2022-11-18 20:22:11,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-18 20:22:11,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.4) internal successors, (84), 59 states have internal predecessors, (84), 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) [2022-11-18 20:22:11,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 84 transitions. [2022-11-18 20:22:11,967 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 84 transitions. [2022-11-18 20:22:11,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:11,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:22:11,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:22:11,968 INFO L87 Difference]: Start difference. First operand 60 states and 84 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2022-11-18 20:22:12,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:12,061 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2022-11-18 20:22:12,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 89 transitions. [2022-11-18 20:22:12,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:22:12,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 89 transitions. [2022-11-18 20:22:12,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2022-11-18 20:22:12,063 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2022-11-18 20:22:12,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 89 transitions. [2022-11-18 20:22:12,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 20:22:12,063 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 89 transitions. [2022-11-18 20:22:12,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 89 transitions. [2022-11-18 20:22:12,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2022-11-18 20:22:12,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 59 states have internal predecessors, (83), 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) [2022-11-18 20:22:12,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2022-11-18 20:22:12,066 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 83 transitions. [2022-11-18 20:22:12,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:22:12,067 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 83 transitions. [2022-11-18 20:22:12,067 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-18 20:22:12,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 83 transitions. [2022-11-18 20:22:12,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 20:22:12,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:22:12,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:22:12,069 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:12,069 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 20:22:12,069 INFO L748 eck$LassoCheckResult]: Stem: 2115#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 2085#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2086#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2119#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 2089#L80 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2090#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 2091#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 2092#L47-3 assume !false; 2117#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2101#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 2102#L47-3 assume !false; 2124#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2133#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2130#L73-1 assume 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216);base2flt_~m#1 := 0; 2094#L76-7 assume 0 == base2flt_~m#1 || base2flt_~m#1 == 16777216 * (128 + base2flt_~e#1);base2flt_~res~0#1 := 16777216 * (128 + base2flt_~e#1); 2109#L77-7 base2flt_~__retres4~0#1 := base2flt_~res~0#1; 2103#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 2104#L80-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2110#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2079#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 2080#L80-2 main_#t~ret10#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret10#1;havoc main_#t~ret10#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2118#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 2087#L35-3 assume base2flt_~m#1 % 4294967296 < 16777216; 2088#L47-7 [2022-11-18 20:22:12,069 INFO L750 eck$LassoCheckResult]: Loop: 2088#L47-7 assume !false; 2081#L38-3 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2082#L47-6 assume base2flt_~m#1 % 4294967296 < 16777216; 2088#L47-7 [2022-11-18 20:22:12,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:12,070 INFO L85 PathProgramCache]: Analyzing trace with hash 2132423710, now seen corresponding path program 1 times [2022-11-18 20:22:12,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:12,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464798633] [2022-11-18 20:22:12,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:12,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:12,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:12,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:22:12,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464798633] [2022-11-18 20:22:12,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464798633] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:22:12,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015685114] [2022-11-18 20:22:12,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:12,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:22:12,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:12,166 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:22:12,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-11-18 20:22:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:12,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:12,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:22:12,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:12,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:12,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:12,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:22:12,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:12,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015685114] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:22:12,387 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:22:12,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-18 20:22:12,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286790974] [2022-11-18 20:22:12,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:22:12,389 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 20:22:12,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:12,389 INFO L85 PathProgramCache]: Analyzing trace with hash 302068, now seen corresponding path program 1 times [2022-11-18 20:22:12,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:22:12,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693005186] [2022-11-18 20:22:12,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:12,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:22:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:12,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:22:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:22:12,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:22:12,427 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:12,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:12,428 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:12,428 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:12,428 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:22:12,428 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:12,428 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:12,428 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:12,429 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration7_Loop [2022-11-18 20:22:12,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:12,429 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:12,430 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:12,436 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:12,506 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:12,506 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:22:12,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:12,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:12,507 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:12,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:22:12,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:12,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-18 20:22:12,552 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:22:12,552 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 20:22:12,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:12,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:12,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:12,562 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:12,568 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:22:12,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:12,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-18 20:22:12,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:12,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:12,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:12,606 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:12,612 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:22:12,612 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:22:12,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-18 20:22:12,644 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:22:12,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:12,650 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:22:12,650 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:22:12,650 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:22:12,650 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:22:12,651 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:22:12,651 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:12,651 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:22:12,651 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:22:12,651 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration7_Loop [2022-11-18 20:22:12,651 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:22:12,651 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:22:12,652 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:12,658 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:22:12,725 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:22:12,725 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:22:12,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:12,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:12,728 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:12,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:22:12,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:22:12,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:22:12,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:22:12,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:22:12,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:22:12,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:22:12,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:22:12,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-18 20:22:12,762 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:22:12,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:12,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:12,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:12,772 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:12,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-18 20:22:12,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:22:12,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:22:12,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:22:12,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:22:12,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:22:12,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:22:12,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:22:12,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:22:12,802 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:22:12,816 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 20:22:12,816 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:22:12,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:22:12,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:22:12,818 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:22:12,822 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:22:12,822 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:22:12,822 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:22:12,822 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-18 20:22:12,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-18 20:22:12,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:12,831 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:22:12,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:12,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:22:12,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:12,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:22:12,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:22:12,925 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 20:22:12,925 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 83 transitions. cyclomatic complexity: 27 Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-11-18 20:22:12,932 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 83 transitions. cyclomatic complexity: 27. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) Result 64 states and 87 transitions. Complement of second has 4 states. [2022-11-18 20:22:12,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 20:22:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-11-18 20:22:12,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-11-18 20:22:12,935 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 23 letters. Loop has 3 letters. [2022-11-18 20:22:12,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:12,935 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 26 letters. Loop has 3 letters. [2022-11-18 20:22:12,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:12,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 23 letters. Loop has 6 letters. [2022-11-18 20:22:12,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:22:12,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 87 transitions. [2022-11-18 20:22:12,938 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:22:12,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 0 states and 0 transitions. [2022-11-18 20:22:12,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 20:22:12,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 20:22:12,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 20:22:12,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:22:12,938 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:22:12,939 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:22:12,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:22:12,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:22:12,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:22:12,940 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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) [2022-11-18 20:22:12,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:12,940 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-18 20:22:12,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-18 20:22:12,940 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:22:12,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:22:12,941 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 20:22:12,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 20:22:12,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 20:22:12,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:22:12,941 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:22:12,941 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:22:12,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:22:12,942 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:22:12,943 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-18 20:22:12,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:22:12,943 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:22:12,943 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 20:22:12,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:22:12 BoogieIcfgContainer [2022-11-18 20:22:12,952 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 20:22:12,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:22:12,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:22:12,953 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:22:12,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:22:06" (3/4) ... [2022-11-18 20:22:12,956 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:22:12,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:22:12,957 INFO L158 Benchmark]: Toolchain (without parser) took 7776.75ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 87.6MB in the beginning and 77.6MB in the end (delta: 10.0MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2022-11-18 20:22:12,958 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 54.6MB in the beginning and 54.5MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:22:12,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.07ms. Allocated memory is still 121.6MB. Free memory was 87.4MB in the beginning and 95.5MB in the end (delta: -8.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:22:12,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.65ms. Allocated memory is still 121.6MB. Free memory was 95.5MB in the beginning and 92.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:22:12,961 INFO L158 Benchmark]: Boogie Preprocessor took 70.77ms. Allocated memory is still 121.6MB. Free memory was 92.8MB in the beginning and 90.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:22:12,961 INFO L158 Benchmark]: RCFGBuilder took 807.58ms. Allocated memory is still 121.6MB. Free memory was 90.7MB in the beginning and 64.0MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-18 20:22:12,962 INFO L158 Benchmark]: BuchiAutomizer took 6365.93ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 63.4MB in the beginning and 78.6MB in the end (delta: -15.2MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2022-11-18 20:22:12,962 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 146.8MB. Free memory was 78.6MB in the beginning and 77.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:22:12,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 54.6MB in the beginning and 54.5MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.07ms. Allocated memory is still 121.6MB. Free memory was 87.4MB in the beginning and 95.5MB in the end (delta: -8.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.65ms. Allocated memory is still 121.6MB. Free memory was 95.5MB in the beginning and 92.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.77ms. Allocated memory is still 121.6MB. Free memory was 92.8MB in the beginning and 90.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 807.58ms. Allocated memory is still 121.6MB. Free memory was 90.7MB in the beginning and 64.0MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 6365.93ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 63.4MB in the beginning and 78.6MB in the end (delta: -15.2MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 146.8MB. Free memory was 78.6MB in the beginning and 77.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (6 trivial, 7 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.2s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 4.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 122 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [7, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 596 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 589 mSDsluCounter, 988 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 222 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 306 IncrementalHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 766 mSDtfsCounter, 306 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp56 ukn100 mio100 lsp100 div561 bol100 ite100 ukn100 eq132 hnf96 smp42 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 66ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-18 20:22:12,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:13,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:13,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-11-18 20:22:13,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50ba179c-7660-45e7-8ca1-008e37375455/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (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