./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e7fbc69 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_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS --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 f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c --- 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-4e7fbc6 [2022-11-23 02:11:53,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:11:53,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:11:53,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:11:53,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:11:53,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:11:53,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:11:53,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:11:53,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:11:53,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:11:53,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:11:53,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:11:53,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:11:53,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:11:53,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:11:53,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:11:53,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:11:53,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:11:53,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:11:53,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:11:53,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:11:53,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:11:53,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:11:53,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:11:53,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:11:53,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:11:53,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:11:53,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:11:53,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:11:53,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:11:53,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:11:53,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:11:53,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:11:53,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:11:53,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:11:53,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:11:53,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:11:53,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:11:53,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:11:53,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:11:53,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:11:53,269 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-23 02:11:53,290 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:11:53,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:11:53,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:11:53,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:11:53,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:11:53,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:11:53,307 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:11:53,307 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-23 02:11:53,308 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-23 02:11:53,308 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-23 02:11:53,309 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-23 02:11:53,309 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-23 02:11:53,309 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-23 02:11:53,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:11:53,310 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:11:53,310 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:11:53,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:11:53,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:11:53,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:11:53,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-23 02:11:53,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-23 02:11:53,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-23 02:11:53,312 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:11:53,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:11:53,312 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-23 02:11:53,313 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:11:53,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-23 02:11:53,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:11:53,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:11:53,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:11:53,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:11:53,315 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-23 02:11:53,316 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_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c [2022-11-23 02:11:53,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:11:53,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:11:53,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:11:53,632 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:11:53,633 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:11:53,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2022-11-23 02:11:56,645 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:11:56,902 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:11:56,903 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2022-11-23 02:11:56,916 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/data/02fb6f3af/246307b6383f40c8bb1c8a547cd002d3/FLAG6af34983d [2022-11-23 02:11:56,936 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/data/02fb6f3af/246307b6383f40c8bb1c8a547cd002d3 [2022-11-23 02:11:56,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:11:56,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:11:56,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:11:56,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:11:56,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:11:56,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:11:56" (1/1) ... [2022-11-23 02:11:56,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d7424d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:56, skipping insertion in model container [2022-11-23 02:11:56,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:11:56" (1/1) ... [2022-11-23 02:11:56,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:11:57,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:11:57,186 WARN L237 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_5f0955ea-ca56-4269-9bca-49bfadcedf0d/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[728,741] [2022-11-23 02:11:57,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:11:57,251 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:11:57,262 WARN L237 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_5f0955ea-ca56-4269-9bca-49bfadcedf0d/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[728,741] [2022-11-23 02:11:57,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:11:57,308 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:11:57,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:57 WrapperNode [2022-11-23 02:11:57,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:11:57,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:11:57,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:11:57,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:11:57,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:57" (1/1) ... [2022-11-23 02:11:57,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:57" (1/1) ... [2022-11-23 02:11:57,358 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 10, calls inlined = 8, statements flattened = 402 [2022-11-23 02:11:57,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:11:57,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:11:57,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:11:57,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:11:57,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:57" (1/1) ... [2022-11-23 02:11:57,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:57" (1/1) ... [2022-11-23 02:11:57,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:57" (1/1) ... [2022-11-23 02:11:57,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:57" (1/1) ... [2022-11-23 02:11:57,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:57" (1/1) ... [2022-11-23 02:11:57,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:57" (1/1) ... [2022-11-23 02:11:57,421 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:57" (1/1) ... [2022-11-23 02:11:57,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:57" (1/1) ... [2022-11-23 02:11:57,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:11:57,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:11:57,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:11:57,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:11:57,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:57" (1/1) ... [2022-11-23 02:11:57,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:11:57,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:11:57,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:11:57,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-23 02:11:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:11:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:11:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:11:57,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:11:57,640 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:11:57,643 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:11:58,339 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:11:58,346 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:11:58,346 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-23 02:11:58,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:58 BoogieIcfgContainer [2022-11-23 02:11:58,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:11:58,351 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-23 02:11:58,353 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-23 02:11:58,368 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-23 02:11:58,369 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:11:58,369 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:11:56" (1/3) ... [2022-11-23 02:11:58,371 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6319377f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:11:58, skipping insertion in model container [2022-11-23 02:11:58,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:11:58,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:57" (2/3) ... [2022-11-23 02:11:58,371 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6319377f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:11:58, skipping insertion in model container [2022-11-23 02:11:58,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:11:58,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:58" (3/3) ... [2022-11-23 02:11:58,373 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2022-11-23 02:11:58,441 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-23 02:11:58,441 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-23 02:11:58,441 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-23 02:11:58,441 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-23 02:11:58,441 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-23 02:11:58,441 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-23 02:11:58,441 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-23 02:11:58,442 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-23 02:11:58,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.7431192660550459) internal successors, (190), 109 states have internal predecessors, (190), 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) [2022-11-23 02:11:58,471 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-23 02:11:58,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:11:58,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:11:58,477 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-23 02:11:58,477 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:11:58,478 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-23 02:11:58,478 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.7431192660550459) internal successors, (190), 109 states have internal predecessors, (190), 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) [2022-11-23 02:11:58,485 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-23 02:11:58,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:11:58,486 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:11:58,486 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-23 02:11:58,486 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:11:58,494 INFO L748 eck$LassoCheckResult]: Stem: 93#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); 33#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#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_~sa~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~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 70#L29true assume !(0 == base2flt_~m#1 % 4294967296); 92#L35true assume !(base2flt_~m#1 % 4294967296 < 16777216); 48#L57-2true [2022-11-23 02:11:58,494 INFO L750 eck$LassoCheckResult]: Loop: 48#L57-2true assume !false; 32#L58true assume base2flt_~m#1 % 4294967296 >= 33554432; 80#L59true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 48#L57-2true [2022-11-23 02:11:58,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:11:58,500 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2022-11-23 02:11:58,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:11:58,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200794330] [2022-11-23 02:11:58,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:11:58,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:11:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:11:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:11:58,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:11:58,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200794330] [2022-11-23 02:11:58,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200794330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:11:58,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:11:58,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:11:58,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963813536] [2022-11-23 02:11:58,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:11:58,826 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:11:58,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:11:58,829 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2022-11-23 02:11:58,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:11:58,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022694781] [2022-11-23 02:11:58,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:11:58,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:11:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:11:58,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:11:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:11:58,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:11:58,948 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:11:58,949 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:11:58,949 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:11:58,949 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:11:58,977 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:11:58,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:11:58,978 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:11:58,978 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:11:58,978 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2022-11-23 02:11:58,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:11:58,978 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:11:58,997 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:11:59,019 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:11:59,199 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:11:59,200 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:11:59,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:11:59,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:11:59,206 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:11:59,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:11:59,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:11:59,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-23 02:11:59,260 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:11:59,260 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: [] [2022-11-23 02:11:59,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-23 02:11:59,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:11:59,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:11:59,272 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:11:59,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:11:59,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:11:59,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-23 02:11:59,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-23 02:11:59,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:11:59,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:11:59,318 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:11:59,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:11:59,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:11:59,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-23 02:11:59,371 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:11:59,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-23 02:11:59,381 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:11:59,381 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:11:59,381 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:11:59,381 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:11:59,381 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:11:59,382 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:11:59,382 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:11:59,382 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:11:59,382 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2022-11-23 02:11:59,382 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:11:59,382 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:11:59,383 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:11:59,395 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:11:59,527 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:11:59,531 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:11:59,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:11:59,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:11:59,539 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:11:59,553 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 [2022-11-23 02:11:59,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-23 02:11:59,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:11:59,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:11:59,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:11:59,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:11:59,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:11:59,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:11:59,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:11:59,591 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:11:59,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-23 02:11:59,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:11:59,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:11:59,602 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:11:59,610 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 [2022-11-23 02:11:59,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:11:59,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:11:59,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:11:59,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:11:59,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:11:59,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-23 02:11:59,625 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:11:59,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:11:59,636 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:11:59,639 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:11:59,640 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:11:59,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:11:59,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:11:59,670 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:11:59,672 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:11:59,672 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:11:59,672 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:11:59,673 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-23 02:11:59,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-23 02:11:59,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-11-23 02:11:59,684 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:11:59,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:11:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:11:59,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:11:59,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:11:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:11:59,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:11:59,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:11:59,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:11:59,807 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 [2022-11-23 02:11:59,812 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 110 states, 109 states have (on average 1.7431192660550459) internal successors, (190), 109 states have internal predecessors, (190), 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) [2022-11-23 02:11:59,954 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 110 states, 109 states have (on average 1.7431192660550459) internal successors, (190), 109 states have internal predecessors, (190), 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 328 states and 560 transitions. Complement of second has 6 states. [2022-11-23 02:11:59,958 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 [2022-11-23 02:11:59,965 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) [2022-11-23 02:11:59,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2022-11-23 02:11:59,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 371 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-23 02:11:59,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:11:59,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 371 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-23 02:11:59,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:11:59,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 371 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-23 02:11:59,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:11:59,972 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 328 states and 560 transitions. [2022-11-23 02:11:59,994 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2022-11-23 02:12:00,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 328 states to 109 states and 174 transitions. [2022-11-23 02:12:00,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2022-11-23 02:12:00,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2022-11-23 02:12:00,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 174 transitions. [2022-11-23 02:12:00,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:12:00,004 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 174 transitions. [2022-11-23 02:12:00,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 174 transitions. [2022-11-23 02:12:00,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 93. [2022-11-23 02:12:00,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.6451612903225807) internal successors, (153), 92 states have internal predecessors, (153), 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) [2022-11-23 02:12:00,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 153 transitions. [2022-11-23 02:12:00,032 INFO L240 hiAutomatonCegarLoop]: Abstraction has 93 states and 153 transitions. [2022-11-23 02:12:00,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:12:00,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:12:00,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:12:00,036 INFO L87 Difference]: Start difference. First operand 93 states and 153 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) [2022-11-23 02:12:00,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:12:00,116 INFO L93 Difference]: Finished difference Result 45 states and 66 transitions. [2022-11-23 02:12:00,116 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 66 transitions. [2022-11-23 02:12:00,117 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-23 02:12:00,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 66 transitions. [2022-11-23 02:12:00,118 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2022-11-23 02:12:00,118 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2022-11-23 02:12:00,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 66 transitions. [2022-11-23 02:12:00,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:12:00,119 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-23 02:12:00,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 66 transitions. [2022-11-23 02:12:00,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-23 02:12:00,121 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) [2022-11-23 02:12:00,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2022-11-23 02:12:00,122 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-23 02:12:00,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:12:00,123 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-23 02:12:00,124 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-23 02:12:00,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 66 transitions. [2022-11-23 02:12:00,124 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-23 02:12:00,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:12:00,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:12:00,125 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:12:00,125 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:12:00,126 INFO L748 eck$LassoCheckResult]: Stem: 660#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); 627#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#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_~sa~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~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 628#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 662#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 632#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 633#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 637#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 638#L47-3 [2022-11-23 02:12:00,126 INFO L750 eck$LassoCheckResult]: Loop: 638#L47-3 assume !false; 659#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 654#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 638#L47-3 [2022-11-23 02:12:00,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:00,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1807335815, now seen corresponding path program 1 times [2022-11-23 02:12:00,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:00,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750764747] [2022-11-23 02:12:00,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:00,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:00,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:12:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:00,147 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:12:00,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:00,148 INFO L85 PathProgramCache]: Analyzing trace with hash 134251, now seen corresponding path program 1 times [2022-11-23 02:12:00,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:00,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104454033] [2022-11-23 02:12:00,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:00,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:00,153 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:12:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:00,156 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:12:00,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:00,157 INFO L85 PathProgramCache]: Analyzing trace with hash 631346469, now seen corresponding path program 1 times [2022-11-23 02:12:00,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:00,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461839574] [2022-11-23 02:12:00,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:00,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:00,169 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:12:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:00,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:12:00,208 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:12:00,208 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:12:00,208 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:12:00,208 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:12:00,209 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:12:00,209 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:00,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:12:00,209 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:12:00,209 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2022-11-23 02:12:00,209 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:12:00,209 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:12:00,210 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:00,217 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:00,289 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:12:00,289 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:12:00,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:00,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:00,291 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:00,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:12:00,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:00,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-23 02:12:00,331 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:12:00,331 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: [] [2022-11-23 02:12:00,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:00,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:00,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:00,337 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:00,352 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:12:00,352 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:00,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-23 02:12:00,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:00,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:00,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:00,384 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:00,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:12:00,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:00,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-23 02:12:00,431 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:12:00,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:00,440 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:12:00,440 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:12:00,440 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:12:00,440 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:12:00,441 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:12:00,441 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:00,441 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:12:00,441 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:12:00,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2022-11-23 02:12:00,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:12:00,441 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:12:00,442 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:00,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:00,528 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:12:00,528 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:12:00,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:00,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:00,529 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:00,540 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 [2022-11-23 02:12:00,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:12:00,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:12:00,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:12:00,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:12:00,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:12:00,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:12:00,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:12:00,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-23 02:12:00,564 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:12:00,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:00,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:00,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:00,569 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:00,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-23 02:12:00,573 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 [2022-11-23 02:12:00,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:12:00,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:12:00,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:12:00,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:12:00,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:12:00,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:12:00,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:12:00,597 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:12:00,600 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:12:00,600 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:12:00,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:00,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:00,606 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:00,612 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:12:00,612 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:12:00,612 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:12:00,612 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-23 02:12:00,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-23 02:12:00,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:00,617 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:12:00,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:00,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:12:00,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:00,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:12:00,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:00,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:00,728 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 [2022-11-23 02:12:00,728 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 66 transitions. cyclomatic complexity: 27 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) [2022-11-23 02:12:00,764 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 66 transitions. cyclomatic complexity: 27. 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 89 states and 131 transitions. Complement of second has 5 states. [2022-11-23 02:12:00,764 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 [2022-11-23 02:12:00,766 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) [2022-11-23 02:12:00,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2022-11-23 02:12:00,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-23 02:12:00,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:00,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-23 02:12:00,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:00,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-23 02:12:00,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:00,768 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 131 transitions. [2022-11-23 02:12:00,769 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2022-11-23 02:12:00,775 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 81 states and 118 transitions. [2022-11-23 02:12:00,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2022-11-23 02:12:00,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 78 [2022-11-23 02:12:00,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 118 transitions. [2022-11-23 02:12:00,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:12:00,779 INFO L218 hiAutomatonCegarLoop]: Abstraction has 81 states and 118 transitions. [2022-11-23 02:12:00,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 118 transitions. [2022-11-23 02:12:00,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 48. [2022-11-23 02:12:00,790 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) [2022-11-23 02:12:00,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2022-11-23 02:12:00,791 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 70 transitions. [2022-11-23 02:12:00,791 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 70 transitions. [2022-11-23 02:12:00,791 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-23 02:12:00,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 70 transitions. [2022-11-23 02:12:00,792 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-23 02:12:00,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:12:00,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:12:00,792 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:12:00,793 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:12:00,793 INFO L748 eck$LassoCheckResult]: Stem: 845#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); 811#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#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_~sa~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~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 812#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 849#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 816#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 817#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 821#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 823#L57-5 [2022-11-23 02:12:00,793 INFO L750 eck$LassoCheckResult]: Loop: 823#L57-5 assume !false; 824#L58-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 825#L59-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 823#L57-5 [2022-11-23 02:12:00,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:00,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1807335841, now seen corresponding path program 1 times [2022-11-23 02:12:00,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:00,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242040251] [2022-11-23 02:12:00,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:00,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:00,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:00,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:00,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:00,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:12:00,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242040251] [2022-11-23 02:12:00,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242040251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:12:00,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:12:00,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:12:00,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764462120] [2022-11-23 02:12:00,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:12:00,986 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:12:00,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:00,987 INFO L85 PathProgramCache]: Analyzing trace with hash 160010, now seen corresponding path program 1 times [2022-11-23 02:12:00,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:00,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975068493] [2022-11-23 02:12:00,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:00,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:01,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:12:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:01,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:12:01,056 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:12:01,056 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:12:01,057 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:12:01,057 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:12:01,057 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:12:01,057 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:01,057 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:12:01,057 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:12:01,058 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2022-11-23 02:12:01,058 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:12:01,058 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:12:01,059 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:01,066 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:01,166 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:12:01,166 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:12:01,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:01,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:01,171 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:01,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:12:01,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:01,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-23 02:12:01,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:01,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:01,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:01,211 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:01,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:12:01,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:01,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-23 02:12:01,253 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:12:01,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:01,263 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:12:01,264 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:12:01,264 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:12:01,264 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:12:01,264 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:12:01,264 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:01,264 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:12:01,264 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:12:01,265 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2022-11-23 02:12:01,265 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:12:01,265 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:12:01,266 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:01,273 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:01,375 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:12:01,375 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:12:01,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:01,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:01,379 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:01,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-23 02:12:01,385 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 [2022-11-23 02:12:01,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:12:01,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:12:01,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:12:01,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:12:01,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:12:01,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:12:01,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:12:01,419 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:12:01,421 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:12:01,421 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:12:01,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:01,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:01,423 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:01,431 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:12:01,431 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:12:01,431 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:12:01,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-23 02:12:01,431 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-23 02:12:01,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:01,440 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:12:01,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:01,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:12:01,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:01,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:12:01,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:01,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:01,502 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 [2022-11-23 02:12:01,503 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 70 transitions. cyclomatic complexity: 28 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) [2022-11-23 02:12:01,529 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 70 transitions. cyclomatic complexity: 28. 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 91 states and 134 transitions. Complement of second has 5 states. [2022-11-23 02:12:01,529 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 [2022-11-23 02:12:01,532 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) [2022-11-23 02:12:01,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2022-11-23 02:12:01,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-23 02:12:01,532 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:01,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-23 02:12:01,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:01,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-23 02:12:01,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:01,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 134 transitions. [2022-11-23 02:12:01,535 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-23 02:12:01,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 83 states and 121 transitions. [2022-11-23 02:12:01,537 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2022-11-23 02:12:01,538 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2022-11-23 02:12:01,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 121 transitions. [2022-11-23 02:12:01,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:12:01,539 INFO L218 hiAutomatonCegarLoop]: Abstraction has 83 states and 121 transitions. [2022-11-23 02:12:01,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 121 transitions. [2022-11-23 02:12:01,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 51. [2022-11-23 02:12:01,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.4509803921568627) internal successors, (74), 50 states have internal predecessors, (74), 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) [2022-11-23 02:12:01,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2022-11-23 02:12:01,547 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 74 transitions. [2022-11-23 02:12:01,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:12:01,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:12:01,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:12:01,548 INFO L87 Difference]: Start difference. First operand 51 states and 74 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) [2022-11-23 02:12:01,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:12:01,621 INFO L93 Difference]: Finished difference Result 49 states and 67 transitions. [2022-11-23 02:12:01,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 67 transitions. [2022-11-23 02:12:01,622 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-23 02:12:01,622 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 67 transitions. [2022-11-23 02:12:01,622 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2022-11-23 02:12:01,623 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2022-11-23 02:12:01,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2022-11-23 02:12:01,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:12:01,623 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2022-11-23 02:12:01,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2022-11-23 02:12:01,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2022-11-23 02:12:01,631 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) [2022-11-23 02:12:01,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2022-11-23 02:12:01,631 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2022-11-23 02:12:01,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:12:01,635 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 63 transitions. [2022-11-23 02:12:01,635 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-23 02:12:01,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 63 transitions. [2022-11-23 02:12:01,636 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-23 02:12:01,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:12:01,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:12:01,637 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:12:01,637 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:12:01,638 INFO L748 eck$LassoCheckResult]: Stem: 1129#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); 1098#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#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_~sa~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~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1099#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1133#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1103#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1104#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1108#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1109#L47-3 assume !false; 1130#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1097#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1118#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret23#1;havoc main_#t~ret23#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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1127#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1122#L35-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1123#L57-8 [2022-11-23 02:12:01,638 INFO L750 eck$LassoCheckResult]: Loop: 1123#L57-8 assume !false; 1115#L58-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 1116#L59-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 1123#L57-8 [2022-11-23 02:12:01,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:01,638 INFO L85 PathProgramCache]: Analyzing trace with hash 780922602, now seen corresponding path program 1 times [2022-11-23 02:12:01,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:01,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059233005] [2022-11-23 02:12:01,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:01,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:01,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:01,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:12:01,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059233005] [2022-11-23 02:12:01,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059233005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:12:01,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:12:01,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:12:01,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95188632] [2022-11-23 02:12:01,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:12:01,723 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:12:01,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:01,724 INFO L85 PathProgramCache]: Analyzing trace with hash 245408, now seen corresponding path program 1 times [2022-11-23 02:12:01,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:01,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642988228] [2022-11-23 02:12:01,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:01,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:01,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:12:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:01,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:12:01,782 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:12:01,782 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:12:01,782 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:12:01,782 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:12:01,782 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:12:01,782 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:01,783 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:12:01,783 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:12:01,783 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2022-11-23 02:12:01,783 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:12:01,783 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:12:01,784 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:01,792 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:01,891 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:12:01,891 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:12:01,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:01,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:01,893 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:01,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:12:01,904 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:01,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-23 02:12:01,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:01,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:01,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:01,944 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:01,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-23 02:12:01,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:12:01,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:01,995 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:12:02,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:02,001 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:12:02,001 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:12:02,001 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:12:02,002 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:12:02,002 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:12:02,002 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:02,002 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:12:02,002 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:12:02,002 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2022-11-23 02:12:02,002 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:12:02,002 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:12:02,003 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:02,012 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:02,104 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:12:02,104 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:12:02,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:02,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:02,106 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:02,125 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 [2022-11-23 02:12:02,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:12:02,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:12:02,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:12:02,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:12:02,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:12:02,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:12:02,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:12:02,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-23 02:12:02,155 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:12:02,165 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:12:02,165 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:12:02,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:02,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:02,167 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:02,180 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:12:02,180 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:12:02,180 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:12:02,180 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-23 02:12:02,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-23 02:12:02,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:02,189 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:12:02,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:02,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:12:02,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:02,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:12:02,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:02,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:02,264 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 [2022-11-23 02:12:02,264 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 63 transitions. cyclomatic complexity: 23 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2022-11-23 02:12:02,282 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 63 transitions. cyclomatic complexity: 23. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 72 states and 101 transitions. Complement of second has 5 states. [2022-11-23 02:12:02,282 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 [2022-11-23 02:12:02,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2022-11-23 02:12:02,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2022-11-23 02:12:02,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-23 02:12:02,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:02,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-23 02:12:02,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:02,286 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 6 letters. [2022-11-23 02:12:02,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:02,287 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 101 transitions. [2022-11-23 02:12:02,288 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-23 02:12:02,289 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 64 states and 88 transitions. [2022-11-23 02:12:02,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-11-23 02:12:02,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2022-11-23 02:12:02,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 88 transitions. [2022-11-23 02:12:02,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:12:02,289 INFO L218 hiAutomatonCegarLoop]: Abstraction has 64 states and 88 transitions. [2022-11-23 02:12:02,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 88 transitions. [2022-11-23 02:12:02,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 48. [2022-11-23 02:12:02,293 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) [2022-11-23 02:12:02,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2022-11-23 02:12:02,294 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 67 transitions. [2022-11-23 02:12:02,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:12:02,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:12:02,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:12:02,295 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) [2022-11-23 02:12:02,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:12:02,323 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2022-11-23 02:12:02,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 68 transitions. [2022-11-23 02:12:02,324 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-23 02:12:02,324 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 49 states and 67 transitions. [2022-11-23 02:12:02,325 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-23 02:12:02,325 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-11-23 02:12:02,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2022-11-23 02:12:02,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:12:02,325 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2022-11-23 02:12:02,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2022-11-23 02:12:02,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2022-11-23 02:12:02,332 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) [2022-11-23 02:12:02,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2022-11-23 02:12:02,332 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 66 transitions. [2022-11-23 02:12:02,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:12:02,335 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 66 transitions. [2022-11-23 02:12:02,335 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-23 02:12:02,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 66 transitions. [2022-11-23 02:12:02,335 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-23 02:12:02,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:12:02,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:12:02,337 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:12:02,337 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:12:02,337 INFO L748 eck$LassoCheckResult]: Stem: 1412#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); 1379#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#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_~sa~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~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1380#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1416#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1384#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1385#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1389#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1390#L47-3 assume !false; 1414#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1401#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1403#L47-3 assume !false; 1413#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1378#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1404#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret23#1;havoc main_#t~ret23#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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1410#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1405#L35-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1407#L47-5 [2022-11-23 02:12:02,338 INFO L750 eck$LassoCheckResult]: Loop: 1407#L47-5 assume !false; 1411#L38-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1418#L47-4 assume base2flt_~m#1 % 4294967296 < 16777216; 1407#L47-5 [2022-11-23 02:12:02,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:02,338 INFO L85 PathProgramCache]: Analyzing trace with hash 136451054, now seen corresponding path program 1 times [2022-11-23 02:12:02,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:02,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7040481] [2022-11-23 02:12:02,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:02,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:02,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:02,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:12:02,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7040481] [2022-11-23 02:12:02,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7040481] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:12:02,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142834152] [2022-11-23 02:12:02,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:02,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:12:02,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:02,436 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:12:02,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-23 02:12:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:02,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:12:02,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:02,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:02,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:12:02,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:02,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142834152] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:12:02,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 02:12:02,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-23 02:12:02,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994950516] [2022-11-23 02:12:02,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 02:12:02,543 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:12:02,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:02,543 INFO L85 PathProgramCache]: Analyzing trace with hash 219649, now seen corresponding path program 1 times [2022-11-23 02:12:02,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:02,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887913311] [2022-11-23 02:12:02,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:02,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:02,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:12:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:02,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:12:02,574 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:12:02,574 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:12:02,574 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:12:02,574 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:12:02,574 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:12:02,574 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:02,574 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:12:02,575 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:12:02,575 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2022-11-23 02:12:02,575 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:12:02,575 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:12:02,576 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:02,582 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:02,654 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:12:02,654 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:12:02,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:02,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:02,659 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:02,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:12:02,667 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:02,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-23 02:12:02,704 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:12:02,704 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: [] [2022-11-23 02:12:02,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:02,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:02,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:02,714 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:02,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:12:02,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:02,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-23 02:12:02,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:02,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:02,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:02,762 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:02,766 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:12:02,766 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:02,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-23 02:12:02,803 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:12:02,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:02,807 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:12:02,808 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:12:02,808 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:12:02,808 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:12:02,808 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:12:02,808 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:02,808 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:12:02,808 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:12:02,808 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2022-11-23 02:12:02,808 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:12:02,808 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:12:02,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:02,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:02,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:02,851 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:02,916 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:12:02,916 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:12:02,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:02,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:02,918 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:02,926 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 [2022-11-23 02:12:02,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:12:02,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:12:02,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:12:02,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:12:02,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:12:02,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-23 02:12:02,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:12:02,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:12:02,956 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:12:02,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:02,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:02,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:02,966 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:02,975 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 [2022-11-23 02:12:02,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:12:02,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:12:02,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:12:02,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:12:02,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:12:02,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-23 02:12:02,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:12:02,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:12:02,999 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:12:03,002 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:12:03,002 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:12:03,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:03,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:03,003 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:03,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-23 02:12:03,007 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:12:03,007 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:12:03,007 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:12:03,008 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-23 02:12:03,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:03,016 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:12:03,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:03,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:12:03,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:03,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:12:03,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:03,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:03,113 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 [2022-11-23 02:12:03,114 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 66 transitions. cyclomatic complexity: 23 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2022-11-23 02:12:03,132 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 66 transitions. cyclomatic complexity: 23. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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 76 states and 105 transitions. Complement of second has 5 states. [2022-11-23 02:12:03,133 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 [2022-11-23 02:12:03,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2022-11-23 02:12:03,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2022-11-23 02:12:03,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-23 02:12:03,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:03,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 19 letters. Loop has 3 letters. [2022-11-23 02:12:03,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:03,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 6 letters. [2022-11-23 02:12:03,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:03,138 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 105 transitions. [2022-11-23 02:12:03,138 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-23 02:12:03,139 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 68 states and 92 transitions. [2022-11-23 02:12:03,139 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-11-23 02:12:03,139 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-11-23 02:12:03,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 92 transitions. [2022-11-23 02:12:03,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:12:03,140 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 92 transitions. [2022-11-23 02:12:03,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 92 transitions. [2022-11-23 02:12:03,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 51. [2022-11-23 02:12:03,145 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) [2022-11-23 02:12:03,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-11-23 02:12:03,145 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-11-23 02:12:03,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:12:03,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:12:03,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:12:03,146 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) [2022-11-23 02:12:03,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:12:03,232 INFO L93 Difference]: Finished difference Result 93 states and 124 transitions. [2022-11-23 02:12:03,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 124 transitions. [2022-11-23 02:12:03,233 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-23 02:12:03,233 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 87 states and 118 transitions. [2022-11-23 02:12:03,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2022-11-23 02:12:03,234 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2022-11-23 02:12:03,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 118 transitions. [2022-11-23 02:12:03,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:12:03,234 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 118 transitions. [2022-11-23 02:12:03,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 118 transitions. [2022-11-23 02:12:03,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 64. [2022-11-23 02:12:03,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 64 states have (on average 1.390625) internal successors, (89), 63 states have internal predecessors, (89), 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) [2022-11-23 02:12:03,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 89 transitions. [2022-11-23 02:12:03,236 INFO L240 hiAutomatonCegarLoop]: Abstraction has 64 states and 89 transitions. [2022-11-23 02:12:03,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 02:12:03,238 INFO L428 stractBuchiCegarLoop]: Abstraction has 64 states and 89 transitions. [2022-11-23 02:12:03,239 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-23 02:12:03,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 64 states and 89 transitions. [2022-11-23 02:12:03,239 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-23 02:12:03,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:12:03,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:12:03,240 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, 1] [2022-11-23 02:12:03,241 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:12:03,246 INFO L748 eck$LassoCheckResult]: Stem: 1852#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); 1817#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#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_~sa~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~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1818#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1857#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1822#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1823#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1827#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1828#L47-3 assume !false; 1854#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1855#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1831#L73-1 assume 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216);base2flt_#t~nondet4#1 := 0; 1832#L76-7 base2flt_~m#1 := base2flt_#t~nondet4#1;havoc base2flt_#t~nondet4#1; 1845#L77-5 assume 0 == base2flt_~m#1 || base2flt_~m#1 == 16777216 * (128 + base2flt_~e#1);base2flt_#t~nondet5#1 := 16777216 * (128 + base2flt_~e#1); 1815#L77-9 base2flt_~res~0#1 := base2flt_#t~nondet5#1;havoc base2flt_#t~nondet5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1; 1816#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1841#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret23#1;havoc main_#t~ret23#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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1847#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1809#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 1810#L80-2 main_#t~ret24#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret24#1;havoc main_#t~ret24#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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1856#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 1819#L35-3 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1820#L57-11 [2022-11-23 02:12:03,247 INFO L750 eck$LassoCheckResult]: Loop: 1820#L57-11 assume !false; 1829#L58-3 assume base2flt_~m#1 % 4294967296 >= 33554432; 1830#L59-3 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 1820#L57-11 [2022-11-23 02:12:03,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:03,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1276938091, now seen corresponding path program 1 times [2022-11-23 02:12:03,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:03,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889253692] [2022-11-23 02:12:03,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:03,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:03,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:03,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:12:03,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889253692] [2022-11-23 02:12:03,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889253692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:12:03,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:12:03,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:12:03,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510535901] [2022-11-23 02:12:03,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:12:03,389 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:12:03,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:03,390 INFO L85 PathProgramCache]: Analyzing trace with hash 330806, now seen corresponding path program 1 times [2022-11-23 02:12:03,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:03,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614929921] [2022-11-23 02:12:03,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:03,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:03,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:12:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:03,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:12:03,437 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:12:03,437 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:12:03,437 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:12:03,437 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:12:03,437 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:12:03,437 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:03,437 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:12:03,438 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:12:03,438 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2022-11-23 02:12:03,438 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:12:03,438 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:12:03,439 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:03,445 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:03,537 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:12:03,537 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:12:03,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:03,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:03,539 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:03,543 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:12:03,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:03,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-23 02:12:03,567 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:12:03,567 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: [] [2022-11-23 02:12:03,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:03,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:03,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:03,576 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:03,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:12:03,580 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:03,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-23 02:12:03,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:03,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:03,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:03,612 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:03,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:12:03,616 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:03,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-23 02:12:03,648 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:12:03,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:03,653 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:12:03,653 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:12:03,654 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:12:03,654 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:12:03,654 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:12:03,654 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:03,654 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:12:03,654 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:12:03,654 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2022-11-23 02:12:03,654 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:12:03,654 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:12:03,655 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:03,663 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:03,753 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:12:03,753 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:12:03,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:03,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:03,755 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:03,760 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 [2022-11-23 02:12:03,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:12:03,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:12:03,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:12:03,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:12:03,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:12:03,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-23 02:12:03,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:12:03,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:12:03,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:12:03,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:03,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:03,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:03,813 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:03,816 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 [2022-11-23 02:12:03,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:12:03,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:12:03,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:12:03,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:12:03,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:12:03,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:12:03,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:12:03,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-23 02:12:03,851 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:12:03,853 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:12:03,853 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:12:03,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:03,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:03,855 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:03,858 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:12:03,858 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:12:03,858 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:12:03,859 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-23 02:12:03,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-23 02:12:03,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:03,868 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:12:03,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:03,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:12:03,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:03,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:12:03,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:03,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:03,943 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 [2022-11-23 02:12:03,943 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 64 states and 89 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-11-23 02:12:03,948 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 64 states and 89 transitions. cyclomatic complexity: 30. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 67 states and 93 transitions. Complement of second has 4 states. [2022-11-23 02:12:03,949 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 [2022-11-23 02:12:03,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-11-23 02:12:03,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2022-11-23 02:12:03,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 21 letters. Loop has 3 letters. [2022-11-23 02:12:03,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:03,952 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 24 letters. Loop has 3 letters. [2022-11-23 02:12:03,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:03,952 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 21 letters. Loop has 6 letters. [2022-11-23 02:12:03,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:03,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 93 transitions. [2022-11-23 02:12:03,954 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-23 02:12:03,954 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 61 states and 85 transitions. [2022-11-23 02:12:03,954 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2022-11-23 02:12:03,954 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2022-11-23 02:12:03,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 85 transitions. [2022-11-23 02:12:03,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:12:03,955 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 85 transitions. [2022-11-23 02:12:03,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 85 transitions. [2022-11-23 02:12:03,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-23 02:12:03,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 60 states have internal predecessors, (85), 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) [2022-11-23 02:12:03,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 85 transitions. [2022-11-23 02:12:03,957 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 85 transitions. [2022-11-23 02:12:03,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:12:03,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:12:03,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:12:03,958 INFO L87 Difference]: Start difference. First operand 61 states and 85 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-11-23 02:12:04,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:12:04,017 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2022-11-23 02:12:04,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 84 transitions. [2022-11-23 02:12:04,017 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-23 02:12:04,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 61 states and 84 transitions. [2022-11-23 02:12:04,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2022-11-23 02:12:04,018 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2022-11-23 02:12:04,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 84 transitions. [2022-11-23 02:12:04,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:12:04,019 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 84 transitions. [2022-11-23 02:12:04,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 84 transitions. [2022-11-23 02:12:04,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-23 02:12:04,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 60 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) [2022-11-23 02:12:04,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2022-11-23 02:12:04,021 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 84 transitions. [2022-11-23 02:12:04,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:12:04,022 INFO L428 stractBuchiCegarLoop]: Abstraction has 61 states and 84 transitions. [2022-11-23 02:12:04,022 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-23 02:12:04,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 84 transitions. [2022-11-23 02:12:04,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-23 02:12:04,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:12:04,023 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:12:04,024 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, 1] [2022-11-23 02:12:04,024 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:12:04,025 INFO L748 eck$LassoCheckResult]: Stem: 2192#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); 2160#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#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_~sa~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~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 2161#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2197#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 2164#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 2165#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 2169#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 2170#L47-3 assume !false; 2200#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2179#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 2180#L47-3 assume !false; 2194#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2195#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2204#L73-1 assume 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216);base2flt_#t~nondet4#1 := 0; 2203#L76-7 base2flt_~m#1 := base2flt_#t~nondet4#1;havoc base2flt_#t~nondet4#1; 2202#L77-5 assume 0 == base2flt_~m#1 || base2flt_~m#1 == 16777216 * (128 + base2flt_~e#1);base2flt_#t~nondet5#1 := 16777216 * (128 + base2flt_~e#1); 2158#L77-9 base2flt_~res~0#1 := base2flt_#t~nondet5#1;havoc base2flt_#t~nondet5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1; 2159#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 2181#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret23#1;havoc main_#t~ret23#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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 2187#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2152#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 2153#L80-2 main_#t~ret24#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret24#1;havoc main_#t~ret24#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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 2196#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 2162#L35-3 assume base2flt_~m#1 % 4294967296 < 16777216; 2163#L47-7 [2022-11-23 02:12:04,025 INFO L750 eck$LassoCheckResult]: Loop: 2163#L47-7 assume !false; 2156#L38-3 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2157#L47-6 assume base2flt_~m#1 % 4294967296 < 16777216; 2163#L47-7 [2022-11-23 02:12:04,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:04,025 INFO L85 PathProgramCache]: Analyzing trace with hash -611737703, now seen corresponding path program 1 times [2022-11-23 02:12:04,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:04,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017213062] [2022-11-23 02:12:04,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:04,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:04,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:04,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:12:04,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017213062] [2022-11-23 02:12:04,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017213062] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:12:04,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038619156] [2022-11-23 02:12:04,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:04,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:12:04,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:04,167 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:12:04,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-11-23 02:12:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:04,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 02:12:04,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:04,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:04,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:12:04,365 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:04,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038619156] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:12:04,365 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 02:12:04,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-23 02:12:04,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949194881] [2022-11-23 02:12:04,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 02:12:04,366 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:12:04,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:04,366 INFO L85 PathProgramCache]: Analyzing trace with hash 305047, now seen corresponding path program 1 times [2022-11-23 02:12:04,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:12:04,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707739021] [2022-11-23 02:12:04,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:12:04,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:12:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:04,370 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:12:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:12:04,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:12:04,399 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:12:04,399 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:12:04,400 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:12:04,400 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:12:04,400 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:12:04,400 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:04,400 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:12:04,400 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:12:04,400 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2022-11-23 02:12:04,400 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:12:04,400 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:12:04,401 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:04,407 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:04,482 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:12:04,482 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:12:04,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:04,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:04,490 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:04,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:12:04,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:04,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-23 02:12:04,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:04,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:04,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:04,547 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:04,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-11-23 02:12:04,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:04,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:12:04,564 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:12:04,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-23 02:12:04,596 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:12:04,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:04,605 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:12:04,606 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:12:04,606 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:12:04,606 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:12:04,606 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:12:04,606 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:04,606 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:12:04,606 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:12:04,606 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2022-11-23 02:12:04,606 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:12:04,606 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:12:04,607 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:04,613 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:12:04,675 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:12:04,675 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:12:04,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:04,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:04,676 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:04,684 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 [2022-11-23 02:12:04,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:12:04,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:12:04,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:12:04,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:12:04,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:12:04,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:12:04,698 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:12:04,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-23 02:12:04,717 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:12:04,719 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:12:04,720 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:12:04,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:12:04,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:12:04,721 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:12:04,728 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:12:04,728 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:12:04,728 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:12:04,728 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-23 02:12:04,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-23 02:12:04,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:04,733 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:12:04,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:12:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:04,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:12:04,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:12:04,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:12:04,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:12:04,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:12:04,822 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 [2022-11-23 02:12:04,823 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 61 states and 84 transitions. cyclomatic complexity: 27 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-11-23 02:12:04,827 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 61 states and 84 transitions. cyclomatic complexity: 27. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 65 states and 88 transitions. Complement of second has 4 states. [2022-11-23 02:12:04,828 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 [2022-11-23 02:12:04,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2022-11-23 02:12:04,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2022-11-23 02:12:04,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 56 transitions. Stem has 24 letters. Loop has 3 letters. [2022-11-23 02:12:04,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:04,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 56 transitions. Stem has 27 letters. Loop has 3 letters. [2022-11-23 02:12:04,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:04,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 56 transitions. Stem has 24 letters. Loop has 6 letters. [2022-11-23 02:12:04,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:12:04,829 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 88 transitions. [2022-11-23 02:12:04,830 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 02:12:04,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 0 states and 0 transitions. [2022-11-23 02:12:04,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-23 02:12:04,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-23 02:12:04,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-23 02:12:04,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:12:04,831 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:12:04,831 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:12:04,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:12:04,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 02:12:04,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-23 02:12:04,831 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 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) [2022-11-23 02:12:04,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:12:04,832 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-23 02:12:04,832 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-23 02:12:04,832 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 02:12:04,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 02:12:04,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-23 02:12:04,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-23 02:12:04,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-23 02:12:04,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:12:04,832 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:12:04,833 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:12:04,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:12:04,833 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:12:04,833 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-23 02:12:04,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-23 02:12:04,833 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 02:12:04,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-23 02:12:04,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:12:04 BoogieIcfgContainer [2022-11-23 02:12:04,841 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-23 02:12:04,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:12:04,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:12:04,843 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:12:04,843 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:58" (3/4) ... [2022-11-23 02:12:04,846 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 02:12:04,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:12:04,847 INFO L158 Benchmark]: Toolchain (without parser) took 7902.11ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 129.9MB in the beginning and 141.1MB in the end (delta: -11.2MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-11-23 02:12:04,847 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 163.6MB. Free memory was 131.0MB in the beginning and 130.9MB in the end (delta: 80.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:12:04,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.69ms. Allocated memory is still 163.6MB. Free memory was 129.9MB in the beginning and 116.5MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 02:12:04,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.17ms. Allocated memory is still 163.6MB. Free memory was 116.5MB in the beginning and 113.3MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:12:04,848 INFO L158 Benchmark]: Boogie Preprocessor took 83.08ms. Allocated memory is still 163.6MB. Free memory was 113.3MB in the beginning and 111.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:12:04,848 INFO L158 Benchmark]: RCFGBuilder took 907.10ms. Allocated memory is still 163.6MB. Free memory was 110.9MB in the beginning and 83.0MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-23 02:12:04,849 INFO L158 Benchmark]: BuchiAutomizer took 6489.64ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 82.6MB in the beginning and 141.1MB in the end (delta: -58.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:12:04,849 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 197.1MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:12:04,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 163.6MB. Free memory was 131.0MB in the beginning and 130.9MB in the end (delta: 80.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.69ms. Allocated memory is still 163.6MB. Free memory was 129.9MB in the beginning and 116.5MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.17ms. Allocated memory is still 163.6MB. Free memory was 116.5MB in the beginning and 113.3MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.08ms. Allocated memory is still 163.6MB. Free memory was 113.3MB in the beginning and 111.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 907.10ms. Allocated memory is still 163.6MB. Free memory was 110.9MB in the beginning and 83.0MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6489.64ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 82.6MB in the beginning and 141.1MB in the end (delta: -58.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 197.1MB. Free memory is still 141.1MB. 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 + 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. 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 4.9s. Construction of modules took 0.2s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 10. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 142 StatesRemovedByMinimization, 8 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, 651 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 644 mSDsluCounter, 1097 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 248 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 289 IncrementalHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 849 mSDtfsCounter, 289 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: unsat Degree: 0 Time: 54ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-23 02:12:04,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:05,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:05,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-23 02:12:05,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f0955ea-ca56-4269-9bca-49bfadcedf0d/bin/uautomizer-QkZJyEgLgS/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