./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 e04fb08f 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_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/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_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 11:42:34,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:42:34,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:42:34,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:42:34,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:42:34,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:42:34,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:42:34,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:42:34,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:42:34,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:42:34,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:42:34,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:42:34,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:42:34,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:42:34,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:42:34,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:42:34,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:42:34,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:42:34,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:42:34,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:42:34,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:42:34,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:42:34,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:42:34,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:42:34,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:42:34,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:42:34,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:42:34,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:42:34,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:42:34,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:42:34,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:42:34,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:42:34,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:42:34,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:42:34,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:42:34,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:42:34,312 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:42:34,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:42:34,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:42:34,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:42:34,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:42:34,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 11:42:34,342 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:42:34,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:42:34,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:42:34,343 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:42:34,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:42:34,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:42:34,345 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:42:34,345 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:42:34,345 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:42:34,345 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:42:34,346 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:42:34,346 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:42:34,346 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:42:34,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:42:34,347 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:42:34,347 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:42:34,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:42:34,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:42:34,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:42:34,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:42:34,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:42:34,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:42:34,349 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:42:34,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:42:34,349 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:42:34,350 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:42:34,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:42:34,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:42:34,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:42:34,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:42:34,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:42:34,352 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:42:34,352 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_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2022-11-16 11:42:34,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:42:34,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:42:34,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:42:34,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:42:34,625 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:42:34,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2022-11-16 11:42:34,687 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/data/b0da3011b/9720fbe149094783bf321b9c9322d663/FLAG041b7baf1 [2022-11-16 11:42:35,127 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:42:35,128 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2022-11-16 11:42:35,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/data/b0da3011b/9720fbe149094783bf321b9c9322d663/FLAG041b7baf1 [2022-11-16 11:42:35,519 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/data/b0da3011b/9720fbe149094783bf321b9c9322d663 [2022-11-16 11:42:35,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:42:35,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:42:35,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:42:35,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:42:35,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:42:35,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:42:35" (1/1) ... [2022-11-16 11:42:35,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6f0034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35, skipping insertion in model container [2022-11-16 11:42:35,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:42:35" (1/1) ... [2022-11-16 11:42:35,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:42:35,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:42:35,762 WARN L229 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_bd7f3a42-0157-47fe-8617-1aaa89b3e156/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2022-11-16 11:42:35,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:42:35,826 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:42:35,838 WARN L229 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_bd7f3a42-0157-47fe-8617-1aaa89b3e156/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2022-11-16 11:42:35,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:42:35,882 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:42:35,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35 WrapperNode [2022-11-16 11:42:35,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:42:35,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:42:35,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:42:35,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:42:35,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35" (1/1) ... [2022-11-16 11:42:35,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35" (1/1) ... [2022-11-16 11:42:35,939 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 10, calls inlined = 8, statements flattened = 374 [2022-11-16 11:42:35,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:42:35,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:42:35,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:42:35,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:42:35,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35" (1/1) ... [2022-11-16 11:42:35,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35" (1/1) ... [2022-11-16 11:42:35,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35" (1/1) ... [2022-11-16 11:42:35,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35" (1/1) ... [2022-11-16 11:42:35,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35" (1/1) ... [2022-11-16 11:42:35,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35" (1/1) ... [2022-11-16 11:42:35,974 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35" (1/1) ... [2022-11-16 11:42:35,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35" (1/1) ... [2022-11-16 11:42:35,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:42:35,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:42:35,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:42:35,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:42:35,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35" (1/1) ... [2022-11-16 11:42:35,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:36,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:36,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:36,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:42:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:42:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:42:36,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:42:36,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:42:36,140 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:42:36,142 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:42:36,751 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:42:36,759 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:42:36,760 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-16 11:42:36,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:42:36 BoogieIcfgContainer [2022-11-16 11:42:36,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:42:36,772 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:42:36,773 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:42:36,778 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:42:36,778 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:42:36,779 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:42:35" (1/3) ... [2022-11-16 11:42:36,780 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bfbe9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:42:36, skipping insertion in model container [2022-11-16 11:42:36,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:42:36,781 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:35" (2/3) ... [2022-11-16 11:42:36,781 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bfbe9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:42:36, skipping insertion in model container [2022-11-16 11:42:36,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:42:36,782 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:42:36" (3/3) ... [2022-11-16 11:42:36,784 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2022-11-16 11:42:36,844 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:42:36,845 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:42:36,845 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:42:36,845 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:42:36,845 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:42:36,845 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:42:36,845 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:42:36,845 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:42:36,850 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) [2022-11-16 11:42:36,872 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-16 11:42:36,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:42:36,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:42:36,878 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 11:42:36,878 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:42:36,878 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:42:36,879 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) [2022-11-16 11:42:36,886 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-16 11:42:36,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:42:36,886 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:42:36,887 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 11:42:36,887 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:42:36,895 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 [2022-11-16 11:42:36,896 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 [2022-11-16 11:42:36,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:36,907 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2022-11-16 11:42:36,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:36,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327502636] [2022-11-16 11:42:36,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:36,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:37,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:37,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327502636] [2022-11-16 11:42:37,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327502636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:42:37,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:42:37,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:42:37,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661517026] [2022-11-16 11:42:37,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:42:37,251 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:42:37,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:37,255 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2022-11-16 11:42:37,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:37,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58227891] [2022-11-16 11:42:37,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:37,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:37,281 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:42:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:37,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:42:37,444 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:37,445 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:37,445 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:37,445 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:37,445 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:42:37,446 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:37,446 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:37,446 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:37,446 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2022-11-16 11:42:37,446 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:37,447 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:37,467 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:37,488 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:37,620 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:37,621 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:42:37,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:37,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:37,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:37,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:42:37,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:37,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 11:42:37,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:37,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:37,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:37,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:37,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:42:37,692 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:37,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 11:42:37,728 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:42:37,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:37,738 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:37,738 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:37,738 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:37,738 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:37,739 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:42:37,739 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:37,739 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:37,739 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:37,739 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2022-11-16 11:42:37,739 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:37,739 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:37,740 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:37,748 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:37,860 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:37,865 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:42:37,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:37,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:37,867 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:37,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:42:37,877 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 [2022-11-16 11:42:37,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:42:37,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:42:37,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:42:37,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:42:37,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:42:37,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:42:37,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:42:37,923 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:42:37,930 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:42:37,930 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:42:37,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:37,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:37,935 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:37,937 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:42:37,937 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:42:37,938 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:42:37,938 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-16 11:42:37,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:42:37,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:37,950 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:42:37,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:37,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:42:37,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:38,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:42:38,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:38,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:38,085 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 [2022-11-16 11:42:38,087 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) [2022-11-16 11:42:38,177 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. [2022-11-16 11:42:38,179 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 [2022-11-16 11:42:38,184 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) [2022-11-16 11:42:38,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2022-11-16 11:42:38,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-16 11:42:38,187 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:38,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-16 11:42:38,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:38,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-16 11:42:38,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:38,189 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 309 states and 542 transitions. [2022-11-16 11:42:38,199 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2022-11-16 11:42:38,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 309 states to 103 states and 168 transitions. [2022-11-16 11:42:38,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 99 [2022-11-16 11:42:38,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 100 [2022-11-16 11:42:38,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 168 transitions. [2022-11-16 11:42:38,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:42:38,212 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 168 transitions. [2022-11-16 11:42:38,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 168 transitions. [2022-11-16 11:42:38,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 88. [2022-11-16 11:42:38,253 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) [2022-11-16 11:42:38,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 148 transitions. [2022-11-16 11:42:38,256 INFO L240 hiAutomatonCegarLoop]: Abstraction has 88 states and 148 transitions. [2022-11-16 11:42:38,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:38,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:42:38,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:42:38,262 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) [2022-11-16 11:42:38,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:38,376 INFO L93 Difference]: Finished difference Result 51 states and 72 transitions. [2022-11-16 11:42:38,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 72 transitions. [2022-11-16 11:42:38,378 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-16 11:42:38,381 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 72 transitions. [2022-11-16 11:42:38,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2022-11-16 11:42:38,382 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51 [2022-11-16 11:42:38,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 72 transitions. [2022-11-16 11:42:38,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:42:38,382 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 72 transitions. [2022-11-16 11:42:38,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 72 transitions. [2022-11-16 11:42:38,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2022-11-16 11:42:38,392 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) [2022-11-16 11:42:38,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2022-11-16 11:42:38,395 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-16 11:42:38,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:42:38,397 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-16 11:42:38,397 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:42:38,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 66 transitions. [2022-11-16 11:42:38,402 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-16 11:42:38,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:42:38,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:42:38,402 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:42:38,402 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:42:38,403 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 [2022-11-16 11:42:38,403 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 [2022-11-16 11:42:38,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:38,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1807305057, now seen corresponding path program 1 times [2022-11-16 11:42:38,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:38,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899287563] [2022-11-16 11:42:38,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:38,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:38,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:38,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:38,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899287563] [2022-11-16 11:42:38,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899287563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:42:38,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:42:38,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:42:38,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129594921] [2022-11-16 11:42:38,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:42:38,538 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:42:38,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:38,538 INFO L85 PathProgramCache]: Analyzing trace with hash 159017, now seen corresponding path program 1 times [2022-11-16 11:42:38,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:38,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58757311] [2022-11-16 11:42:38,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:38,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:38,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:42:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:38,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:42:38,587 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:38,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:38,588 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:38,588 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:38,588 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:42:38,588 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:38,588 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:38,588 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:38,588 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2022-11-16 11:42:38,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:38,588 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:38,591 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:38,600 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:38,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:38,738 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:38,738 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:42:38,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:38,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:38,743 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:38,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:42:38,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:38,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 11:42:38,777 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:42:38,777 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: [] [2022-11-16 11:42:38,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:38,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:38,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:38,791 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:38,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:42:38,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:38,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 11:42:38,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:38,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:38,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:38,836 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:38,850 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:42:38,850 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:38,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 11:42:38,882 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:42:38,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:38,891 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:38,891 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:38,892 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:38,892 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:38,892 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:42:38,892 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:38,892 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:38,892 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:38,892 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2022-11-16 11:42:38,892 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:38,893 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:38,894 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:38,912 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:39,041 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:39,042 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:42:39,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:39,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:39,043 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:39,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 11:42:39,057 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 [2022-11-16 11:42:39,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:42:39,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:42:39,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:42:39,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:42:39,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:42:39,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:42:39,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:42:39,083 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:42:39,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:39,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:39,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:39,091 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:39,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 11:42:39,100 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 [2022-11-16 11:42:39,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:42:39,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:42:39,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:42:39,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:42:39,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:42:39,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:42:39,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:42:39,124 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:42:39,127 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:42:39,127 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:42:39,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:39,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:39,129 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:39,133 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:42:39,133 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:42:39,133 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:42:39,133 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-16 11:42:39,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 11:42:39,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:39,144 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:42:39,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:39,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:42:39,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:39,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:42:39,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:39,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:39,209 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 [2022-11-16 11:42:39,210 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) [2022-11-16 11:42:39,260 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. [2022-11-16 11:42:39,260 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 [2022-11-16 11:42:39,263 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) [2022-11-16 11:42:39,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2022-11-16 11:42:39,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-16 11:42:39,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:39,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-16 11:42:39,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:39,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-16 11:42:39,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:39,266 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 130 transitions. [2022-11-16 11:42:39,269 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2022-11-16 11:42:39,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 80 states and 117 transitions. [2022-11-16 11:42:39,273 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2022-11-16 11:42:39,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2022-11-16 11:42:39,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 117 transitions. [2022-11-16 11:42:39,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:42:39,274 INFO L218 hiAutomatonCegarLoop]: Abstraction has 80 states and 117 transitions. [2022-11-16 11:42:39,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 117 transitions. [2022-11-16 11:42:39,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 48. [2022-11-16 11:42:39,283 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) [2022-11-16 11:42:39,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2022-11-16 11:42:39,284 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 70 transitions. [2022-11-16 11:42:39,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:39,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:42:39,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:42:39,286 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) [2022-11-16 11:42:39,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:39,353 INFO L93 Difference]: Finished difference Result 46 states and 64 transitions. [2022-11-16 11:42:39,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 64 transitions. [2022-11-16 11:42:39,355 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-16 11:42:39,357 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 64 transitions. [2022-11-16 11:42:39,357 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2022-11-16 11:42:39,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2022-11-16 11:42:39,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 64 transitions. [2022-11-16 11:42:39,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:42:39,360 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 64 transitions. [2022-11-16 11:42:39,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 64 transitions. [2022-11-16 11:42:39,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2022-11-16 11:42:39,371 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) [2022-11-16 11:42:39,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 59 transitions. [2022-11-16 11:42:39,371 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-11-16 11:42:39,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:42:39,372 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-11-16 11:42:39,373 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 11:42:39,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 59 transitions. [2022-11-16 11:42:39,373 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-16 11:42:39,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:42:39,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:42:39,374 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:42:39,374 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:42:39,374 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 [2022-11-16 11:42:39,375 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 [2022-11-16 11:42:39,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:39,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1807305031, now seen corresponding path program 1 times [2022-11-16 11:42:39,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:39,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853346806] [2022-11-16 11:42:39,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:39,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:39,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:42:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:39,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:42:39,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:39,394 INFO L85 PathProgramCache]: Analyzing trace with hash 133258, now seen corresponding path program 1 times [2022-11-16 11:42:39,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:39,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465437387] [2022-11-16 11:42:39,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:39,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:39,398 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:42:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:39,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:42:39,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:39,402 INFO L85 PathProgramCache]: Analyzing trace with hash -285740668, now seen corresponding path program 1 times [2022-11-16 11:42:39,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:39,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378483985] [2022-11-16 11:42:39,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:39,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:39,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:42:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:39,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:42:39,450 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:39,450 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:39,450 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:39,451 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:39,451 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:42:39,451 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:39,451 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:39,451 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:39,451 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2022-11-16 11:42:39,451 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:39,452 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:39,452 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:39,459 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:39,534 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:39,534 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:42:39,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:39,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:39,540 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:39,565 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:42:39,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:39,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 11:42:39,600 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:42:39,600 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: [] [2022-11-16 11:42:39,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:39,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:39,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:39,609 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:39,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-16 11:42:39,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:42:39,616 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:39,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:39,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:39,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:39,634 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:39,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:42:39,637 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:39,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-16 11:42:39,683 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:42:39,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-11-16 11:42:39,692 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:39,692 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:39,692 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:39,692 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:39,692 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:42:39,692 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:39,692 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:39,692 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:39,692 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2022-11-16 11:42:39,692 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:39,693 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:39,694 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:39,702 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:39,785 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:39,785 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:42:39,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:39,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:39,791 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:39,800 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 [2022-11-16 11:42:39,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:42:39,812 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:42:39,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:42:39,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:42:39,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:42:39,816 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:42:39,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:42:39,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-16 11:42:39,827 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:42:39,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:39,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:39,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:39,836 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:39,848 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 [2022-11-16 11:42:39,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:42:39,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:42:39,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:42:39,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:42:39,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:42:39,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:42:39,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:42:39,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-16 11:42:39,879 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:42:39,881 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:42:39,882 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:42:39,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:39,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:39,886 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:39,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-16 11:42:39,889 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:42:39,889 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:42:39,889 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:42:39,889 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-16 11:42:39,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-11-16 11:42:39,896 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:42:39,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:39,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:42:39,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:39,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:42:39,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:40,004 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 [2022-11-16 11:42:40,005 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) [2022-11-16 11:42:40,029 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. [2022-11-16 11:42:40,029 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 [2022-11-16 11:42:40,032 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) [2022-11-16 11:42:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-11-16 11:42:40,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-16 11:42:40,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:40,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-16 11:42:40,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:40,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-16 11:42:40,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:40,034 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 77 transitions. [2022-11-16 11:42:40,035 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-16 11:42:40,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 46 states and 64 transitions. [2022-11-16 11:42:40,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2022-11-16 11:42:40,036 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-16 11:42:40,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 64 transitions. [2022-11-16 11:42:40,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:42:40,036 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 64 transitions. [2022-11-16 11:42:40,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 64 transitions. [2022-11-16 11:42:40,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2022-11-16 11:42:40,048 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) [2022-11-16 11:42:40,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2022-11-16 11:42:40,048 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2022-11-16 11:42:40,048 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 63 transitions. [2022-11-16 11:42:40,049 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 11:42:40,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 63 transitions. [2022-11-16 11:42:40,049 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-16 11:42:40,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:42:40,049 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:42:40,050 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:42:40,050 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:42:40,051 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 [2022-11-16 11:42:40,051 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 [2022-11-16 11:42:40,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:40,051 INFO L85 PathProgramCache]: Analyzing trace with hash 124962288, now seen corresponding path program 1 times [2022-11-16 11:42:40,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:40,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513801111] [2022-11-16 11:42:40,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:40,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:40,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:40,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:40,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513801111] [2022-11-16 11:42:40,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513801111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:42:40,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:42:40,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:42:40,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117273007] [2022-11-16 11:42:40,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:42:40,142 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:42:40,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:40,142 INFO L85 PathProgramCache]: Analyzing trace with hash 217663, now seen corresponding path program 1 times [2022-11-16 11:42:40,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:40,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487091982] [2022-11-16 11:42:40,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:40,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:40,149 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:42:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:40,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:42:40,184 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:40,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:40,184 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:40,184 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:40,184 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:42:40,185 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:40,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:40,185 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:40,185 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2022-11-16 11:42:40,185 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:40,185 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:40,186 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:40,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:40,263 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:40,263 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:42:40,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:40,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:40,264 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:40,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:42:40,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:40,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-16 11:42:40,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:40,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:40,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:40,313 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:40,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:42:40,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:40,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-16 11:42:40,355 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:42:40,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:40,364 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:40,364 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:40,364 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:40,365 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:40,365 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:42:40,365 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:40,365 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:40,365 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:40,365 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2022-11-16 11:42:40,365 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:40,365 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:40,366 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:40,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:40,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:40,417 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:40,491 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:40,492 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:42:40,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:40,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:40,493 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:40,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-16 11:42:40,498 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 [2022-11-16 11:42:40,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:42:40,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:42:40,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:42:40,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:42:40,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:42:40,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:42:40,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:42:40,531 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:42:40,536 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:42:40,536 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:42:40,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:40,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:40,537 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:40,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-16 11:42:40,543 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:42:40,544 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:42:40,544 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:42:40,545 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-16 11:42:40,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-11-16 11:42:40,552 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:42:40,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:40,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:42:40,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:40,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:42:40,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:40,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:40,655 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 [2022-11-16 11:42:40,656 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) [2022-11-16 11:42:40,686 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. [2022-11-16 11:42:40,686 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 [2022-11-16 11:42:40,687 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) [2022-11-16 11:42:40,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2022-11-16 11:42:40,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 68 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-16 11:42:40,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:40,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 68 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-16 11:42:40,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:40,688 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 68 transitions. Stem has 13 letters. Loop has 6 letters. [2022-11-16 11:42:40,689 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:40,689 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 102 transitions. [2022-11-16 11:42:40,690 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-16 11:42:40,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 65 states and 89 transitions. [2022-11-16 11:42:40,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-11-16 11:42:40,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-11-16 11:42:40,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 89 transitions. [2022-11-16 11:42:40,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:42:40,691 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 89 transitions. [2022-11-16 11:42:40,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 89 transitions. [2022-11-16 11:42:40,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 48. [2022-11-16 11:42:40,693 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) [2022-11-16 11:42:40,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2022-11-16 11:42:40,693 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 67 transitions. [2022-11-16 11:42:40,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:40,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:42:40,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:42:40,695 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) [2022-11-16 11:42:40,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:40,729 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2022-11-16 11:42:40,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 68 transitions. [2022-11-16 11:42:40,730 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-16 11:42:40,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 49 states and 67 transitions. [2022-11-16 11:42:40,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-16 11:42:40,731 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-11-16 11:42:40,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2022-11-16 11:42:40,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:42:40,731 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2022-11-16 11:42:40,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2022-11-16 11:42:40,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2022-11-16 11:42:40,732 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) [2022-11-16 11:42:40,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2022-11-16 11:42:40,733 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 66 transitions. [2022-11-16 11:42:40,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:42:40,735 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 66 transitions. [2022-11-16 11:42:40,735 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-16 11:42:40,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 66 transitions. [2022-11-16 11:42:40,736 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-16 11:42:40,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:42:40,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:42:40,737 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:42:40,737 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:42:40,737 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 [2022-11-16 11:42:40,737 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 [2022-11-16 11:42:40,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:40,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1441762439, now seen corresponding path program 1 times [2022-11-16 11:42:40,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:40,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161490743] [2022-11-16 11:42:40,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:40,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:40,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:40,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:40,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161490743] [2022-11-16 11:42:40,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161490743] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:42:40,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843923433] [2022-11-16 11:42:40,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:40,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:42:40,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:40,828 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:42:40,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-16 11:42:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:40,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:42:40,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:40,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:42:40,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:40,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843923433] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:42:40,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:42:40,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-16 11:42:40,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563960665] [2022-11-16 11:42:40,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:42:40,955 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:42:40,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:40,955 INFO L85 PathProgramCache]: Analyzing trace with hash 243422, now seen corresponding path program 1 times [2022-11-16 11:42:40,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:40,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050452848] [2022-11-16 11:42:40,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:40,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:40,964 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:42:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:40,969 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:42:41,003 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:41,003 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:41,004 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:41,004 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:41,004 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:42:41,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:41,004 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:41,004 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:41,004 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2022-11-16 11:42:41,004 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:41,004 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:41,005 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:41,011 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:41,099 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:41,100 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:42:41,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:41,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:41,101 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:41,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:42:41,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:41,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-16 11:42:41,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:41,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:41,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:41,135 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:41,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-16 11:42:41,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:42:41,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:41,171 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:42:41,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:41,179 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:41,179 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:41,180 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:41,180 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:41,180 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:42:41,180 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:41,180 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:41,180 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:41,180 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2022-11-16 11:42:41,180 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:41,180 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:41,181 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:41,187 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:41,280 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:41,280 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:42:41,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:41,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:41,281 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:41,288 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 [2022-11-16 11:42:41,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:42:41,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:42:41,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:42:41,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:42:41,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:42:41,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:42:41,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:42:41,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-16 11:42:41,331 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:42:41,333 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:42:41,333 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:42:41,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:41,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:41,337 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:41,343 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:42:41,343 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:42:41,343 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:42:41,344 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-16 11:42:41,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-16 11:42:41,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:41,355 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:42:41,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:41,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:42:41,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:41,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:42:41,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:41,420 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 [2022-11-16 11:42:41,420 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) [2022-11-16 11:42:41,438 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. [2022-11-16 11:42:41,439 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 [2022-11-16 11:42:41,439 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) [2022-11-16 11:42:41,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2022-11-16 11:42:41,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-16 11:42:41,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:41,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 19 letters. Loop has 3 letters. [2022-11-16 11:42:41,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:41,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 16 letters. Loop has 6 letters. [2022-11-16 11:42:41,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:41,440 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 104 transitions. [2022-11-16 11:42:41,441 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-16 11:42:41,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 67 states and 91 transitions. [2022-11-16 11:42:41,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-11-16 11:42:41,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2022-11-16 11:42:41,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 91 transitions. [2022-11-16 11:42:41,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:42:41,442 INFO L218 hiAutomatonCegarLoop]: Abstraction has 67 states and 91 transitions. [2022-11-16 11:42:41,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 91 transitions. [2022-11-16 11:42:41,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 51. [2022-11-16 11:42:41,444 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) [2022-11-16 11:42:41,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-11-16 11:42:41,444 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-11-16 11:42:41,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:41,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:42:41,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:42:41,445 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) [2022-11-16 11:42:41,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:41,530 INFO L93 Difference]: Finished difference Result 93 states and 124 transitions. [2022-11-16 11:42:41,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 124 transitions. [2022-11-16 11:42:41,531 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-16 11:42:41,532 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 87 states and 118 transitions. [2022-11-16 11:42:41,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2022-11-16 11:42:41,532 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2022-11-16 11:42:41,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 118 transitions. [2022-11-16 11:42:41,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:42:41,532 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 118 transitions. [2022-11-16 11:42:41,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 118 transitions. [2022-11-16 11:42:41,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 63. [2022-11-16 11:42:41,534 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) [2022-11-16 11:42:41,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2022-11-16 11:42:41,534 INFO L240 hiAutomatonCegarLoop]: Abstraction has 63 states and 88 transitions. [2022-11-16 11:42:41,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:42:41,535 INFO L428 stractBuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2022-11-16 11:42:41,535 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-16 11:42:41,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 88 transitions. [2022-11-16 11:42:41,536 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-16 11:42:41,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:42:41,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:42:41,537 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] [2022-11-16 11:42:41,537 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:42:41,537 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 [2022-11-16 11:42:41,537 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 [2022-11-16 11:42:41,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:41,538 INFO L85 PathProgramCache]: Analyzing trace with hash -277950123, now seen corresponding path program 1 times [2022-11-16 11:42:41,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:41,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310317308] [2022-11-16 11:42:41,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:41,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:41,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:41,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:41,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310317308] [2022-11-16 11:42:41,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310317308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:42:41,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:42:41,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:42:41,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460467547] [2022-11-16 11:42:41,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:42:41,672 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:42:41,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:41,673 INFO L85 PathProgramCache]: Analyzing trace with hash 327827, now seen corresponding path program 1 times [2022-11-16 11:42:41,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:41,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052469341] [2022-11-16 11:42:41,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:41,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:41,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:42:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:41,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:42:41,721 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:41,722 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:41,722 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:41,722 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:41,722 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:42:41,722 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:41,722 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:41,722 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:41,723 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2022-11-16 11:42:41,723 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:41,723 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:41,724 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:41,750 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:41,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:41,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:41,857 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:41,857 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:42:41,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:41,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:41,858 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:41,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:42:41,869 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:41,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-16 11:42:41,889 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:42:41,889 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: [] [2022-11-16 11:42:41,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-11-16 11:42:41,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:41,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:41,893 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:41,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-16 11:42:41,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:42:41,897 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:41,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-11-16 11:42:41,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:41,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:41,912 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:41,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-16 11:42:41,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:42:41,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:41,951 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:42:41,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:41,960 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:41,960 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:41,960 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:41,960 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:41,960 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:42:41,960 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:41,960 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:41,960 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:41,960 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2022-11-16 11:42:41,960 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:41,961 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:41,961 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:41,970 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:42,060 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:42,061 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:42:42,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:42,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:42,062 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:42,071 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 [2022-11-16 11:42:42,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-16 11:42:42,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:42:42,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:42:42,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:42:42,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:42:42,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:42:42,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:42:42,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:42:42,112 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:42:42,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:42,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:42,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:42,122 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:42,131 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 [2022-11-16 11:42:42,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:42:42,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:42:42,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:42:42,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:42:42,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:42:42,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:42:42,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:42:42,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-16 11:42:42,159 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:42:42,164 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:42:42,164 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:42:42,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:42,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:42,166 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:42,174 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:42:42,174 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:42:42,174 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:42:42,174 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-16 11:42:42,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-16 11:42:42,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:42,181 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:42:42,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:42,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:42:42,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:42,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:42:42,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:42,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:42,256 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 [2022-11-16 11:42:42,257 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) [2022-11-16 11:42:42,262 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. [2022-11-16 11:42:42,263 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 [2022-11-16 11:42:42,263 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) [2022-11-16 11:42:42,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2022-11-16 11:42:42,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 20 letters. Loop has 3 letters. [2022-11-16 11:42:42,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:42,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 23 letters. Loop has 3 letters. [2022-11-16 11:42:42,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:42,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 20 letters. Loop has 6 letters. [2022-11-16 11:42:42,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:42,264 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 92 transitions. [2022-11-16 11:42:42,265 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:42:42,265 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 60 states and 84 transitions. [2022-11-16 11:42:42,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2022-11-16 11:42:42,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-16 11:42:42,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 84 transitions. [2022-11-16 11:42:42,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:42:42,266 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 84 transitions. [2022-11-16 11:42:42,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 84 transitions. [2022-11-16 11:42:42,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-16 11:42:42,267 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) [2022-11-16 11:42:42,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 84 transitions. [2022-11-16 11:42:42,268 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 84 transitions. [2022-11-16 11:42:42,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:42,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:42:42,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:42:42,269 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) [2022-11-16 11:42:42,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:42,359 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2022-11-16 11:42:42,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 89 transitions. [2022-11-16 11:42:42,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:42:42,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 89 transitions. [2022-11-16 11:42:42,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2022-11-16 11:42:42,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2022-11-16 11:42:42,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 89 transitions. [2022-11-16 11:42:42,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:42:42,360 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 89 transitions. [2022-11-16 11:42:42,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 89 transitions. [2022-11-16 11:42:42,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2022-11-16 11:42:42,362 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) [2022-11-16 11:42:42,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2022-11-16 11:42:42,362 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 83 transitions. [2022-11-16 11:42:42,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:42:42,363 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 83 transitions. [2022-11-16 11:42:42,363 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-16 11:42:42,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 83 transitions. [2022-11-16 11:42:42,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:42:42,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:42:42,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:42:42,364 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] [2022-11-16 11:42:42,364 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:42:42,365 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 [2022-11-16 11:42:42,365 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 [2022-11-16 11:42:42,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:42,365 INFO L85 PathProgramCache]: Analyzing trace with hash 2132423710, now seen corresponding path program 1 times [2022-11-16 11:42:42,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:42,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906295189] [2022-11-16 11:42:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:42,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:42,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:42,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:42:42,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906295189] [2022-11-16 11:42:42,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906295189] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:42:42,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141323947] [2022-11-16 11:42:42,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:42,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:42:42,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:42,489 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:42:42,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-11-16 11:42:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:42,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 11:42:42,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:42,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:42:42,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:42,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141323947] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:42:42,695 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:42:42,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-16 11:42:42,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265093128] [2022-11-16 11:42:42,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:42:42,696 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:42:42,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:42,696 INFO L85 PathProgramCache]: Analyzing trace with hash 302068, now seen corresponding path program 1 times [2022-11-16 11:42:42,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:42:42,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129335028] [2022-11-16 11:42:42,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:42:42,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:42:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:42,701 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:42:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:42:42,704 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:42:42,731 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:42,731 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:42,731 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:42,731 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:42,731 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:42:42,731 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:42,731 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:42,732 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:42,732 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration7_Loop [2022-11-16 11:42:42,732 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:42,732 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:42,733 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:42,739 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:42,808 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:42,809 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:42:42,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:42,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:42,810 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:42,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:42:42,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:42,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-16 11:42:42,852 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:42:42,852 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: [] [2022-11-16 11:42:42,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:42,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:42,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:42,860 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:42,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:42:42,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:42,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-16 11:42:42,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:42,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:42,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:42,890 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:42,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:42:42,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:42:42,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-16 11:42:42,928 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:42:42,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:42,931 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:42:42,931 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:42:42,931 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:42:42,931 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:42:42,931 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:42:42,931 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:42,932 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:42:42,932 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:42:42,932 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration7_Loop [2022-11-16 11:42:42,932 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:42:42,932 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:42:42,932 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:42,939 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:42:43,006 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:42:43,007 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:42:43,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:43,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:43,008 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:43,016 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 [2022-11-16 11:42:43,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:42:43,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:42:43,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:42:43,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:42:43,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:42:43,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:42:43,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:42:43,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-16 11:42:43,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:42:43,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:43,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:43,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:43,048 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:43,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-16 11:42:43,053 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 [2022-11-16 11:42:43,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:42:43,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:42:43,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:42:43,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:42:43,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:42:43,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:42:43,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:42:43,068 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:42:43,070 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:42:43,070 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:42:43,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:42:43,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:42:43,073 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:42:43,074 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:42:43,074 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:42:43,074 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:42:43,074 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-16 11:42:43,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-16 11:42:43,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:43,084 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:42:43,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:42:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:43,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:42:43,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:42:43,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:42:43,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:42:43,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:42:43,197 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 [2022-11-16 11:42:43,197 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) [2022-11-16 11:42:43,202 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. [2022-11-16 11:42:43,203 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 [2022-11-16 11:42:43,203 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) [2022-11-16 11:42:43,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-11-16 11:42:43,204 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 23 letters. Loop has 3 letters. [2022-11-16 11:42:43,204 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:43,204 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 26 letters. Loop has 3 letters. [2022-11-16 11:42:43,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:43,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 23 letters. Loop has 6 letters. [2022-11-16 11:42:43,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:42:43,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 87 transitions. [2022-11-16 11:42:43,206 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:42:43,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 0 states and 0 transitions. [2022-11-16 11:42:43,206 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:42:43,206 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:42:43,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:42:43,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:42:43,223 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:42:43,223 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:42:43,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:42:43,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:42:43,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:42:43,224 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) [2022-11-16 11:42:43,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:42:43,224 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-16 11:42:43,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-16 11:42:43,224 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:42:43,224 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:42:43,224 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:42:43,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:42:43,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:42:43,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:42:43,224 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:42:43,224 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:42:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:42:43,225 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:42:43,225 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-16 11:42:43,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:42:43,225 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:42:43,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 11:42:43,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:42:43 BoogieIcfgContainer [2022-11-16 11:42:43,236 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:42:43,236 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:42:43,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:42:43,237 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:42:43,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:42:36" (3/4) ... [2022-11-16 11:42:43,240 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:42:43,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:42:43,241 INFO L158 Benchmark]: Toolchain (without parser) took 7719.47ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 87.8MB in the beginning and 126.1MB in the end (delta: -38.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:42:43,242 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:42:43,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.21ms. Allocated memory is still 127.9MB. Free memory was 87.6MB in the beginning and 100.9MB in the end (delta: -13.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:42:43,242 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.37ms. Allocated memory is still 127.9MB. Free memory was 100.9MB in the beginning and 98.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:42:43,243 INFO L158 Benchmark]: Boogie Preprocessor took 39.76ms. Allocated memory is still 127.9MB. Free memory was 98.3MB in the beginning and 96.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:42:43,243 INFO L158 Benchmark]: RCFGBuilder took 790.07ms. Allocated memory is still 127.9MB. Free memory was 96.1MB in the beginning and 68.9MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 11:42:43,244 INFO L158 Benchmark]: BuchiAutomizer took 6464.11ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 68.9MB in the beginning and 126.1MB in the end (delta: -57.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:42:43,244 INFO L158 Benchmark]: Witness Printer took 4.41ms. Allocated memory is still 157.3MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:42:43,246 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2022-11-16 11:42:43,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.21ms. Allocated memory is still 127.9MB. Free memory was 87.6MB in the beginning and 100.9MB in the end (delta: -13.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.37ms. Allocated memory is still 127.9MB. Free memory was 100.9MB in the beginning and 98.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.76ms. Allocated memory is still 127.9MB. Free memory was 98.3MB in the beginning and 96.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 790.07ms. Allocated memory is still 127.9MB. Free memory was 96.1MB in the beginning and 68.9MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 6464.11ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 68.9MB in the beginning and 126.1MB in the end (delta: -57.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.41ms. Allocated memory is still 157.3MB. Free memory is still 126.1MB. 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 6.4s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 4.8s. Construction of modules took 0.3s. Büchi inclusion checks took 1.0s. 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: 72ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating [2022-11-16 11:42:43,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 RESULT: Ultimate proved your program to be correct! [2022-11-16 11:42:43,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-11-16 11:42:43,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-11-16 11:42:43,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd7f3a42-0157-47fe-8617-1aaa89b3e156/bin/uautomizer-tPACEb0tL8/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