./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 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_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/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_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/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_a966b942-4a76-4811-9058-556d41a2d6fa/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 f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:24:41,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:24:41,970 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:24:41,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:24:41,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:24:41,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:24:41,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:24:41,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:24:41,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:24:41,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:24:41,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:24:42,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:24:42,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:24:42,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:24:42,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:24:42,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:24:42,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:24:42,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:24:42,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:24:42,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:24:42,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:24:42,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:24:42,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:24:42,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:24:42,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:24:42,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:24:42,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:24:42,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:24:42,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:24:42,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:24:42,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:24:42,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:24:42,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:24:42,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:24:42,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:24:42,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:24:42,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:24:42,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:24:42,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:24:42,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:24:42,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:24:42,045 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-23 02:24:42,092 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:24:42,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:24:42,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:24:42,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:24:42,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:24:42,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:24:42,098 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:24:42,098 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-23 02:24:42,099 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-23 02:24:42,099 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-23 02:24:42,100 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-23 02:24:42,100 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-23 02:24:42,101 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-23 02:24:42,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:24:42,101 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:24:42,101 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:24:42,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:24:42,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:24:42,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:24:42,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-23 02:24:42,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-23 02:24:42,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-23 02:24:42,103 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:24:42,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:24:42,104 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-23 02:24:42,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:24:42,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-23 02:24:42,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:24:42,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:24:42,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:24:42,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:24:42,107 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-23 02:24:42,108 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_a966b942-4a76-4811-9058-556d41a2d6fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2022-11-23 02:24:42,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:24:42,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:24:42,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:24:42,413 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:24:42,414 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:24:42,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2022-11-23 02:24:45,544 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:24:45,801 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:24:45,802 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2022-11-23 02:24:45,816 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/data/ba8a3369d/cee81daa12564495956545133e38b308/FLAG5c40e1454 [2022-11-23 02:24:45,834 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/data/ba8a3369d/cee81daa12564495956545133e38b308 [2022-11-23 02:24:45,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:24:45,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:24:45,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:24:45,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:24:45,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:24:45,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:24:45" (1/1) ... [2022-11-23 02:24:45,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8cdd49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:45, skipping insertion in model container [2022-11-23 02:24:45,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:24:45" (1/1) ... [2022-11-23 02:24:45,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:24:45,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:24:46,079 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_a966b942-4a76-4811-9058-556d41a2d6fa/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2022-11-23 02:24:46,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:24:46,138 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:24:46,152 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_a966b942-4a76-4811-9058-556d41a2d6fa/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2022-11-23 02:24:46,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:24:46,199 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:24:46,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:46 WrapperNode [2022-11-23 02:24:46,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:24:46,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:24:46,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:24:46,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:24:46,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:46" (1/1) ... [2022-11-23 02:24:46,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:46" (1/1) ... [2022-11-23 02:24:46,281 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 10, calls inlined = 8, statements flattened = 402 [2022-11-23 02:24:46,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:24:46,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:24:46,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:24:46,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:24:46,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:46" (1/1) ... [2022-11-23 02:24:46,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:46" (1/1) ... [2022-11-23 02:24:46,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:46" (1/1) ... [2022-11-23 02:24:46,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:46" (1/1) ... [2022-11-23 02:24:46,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:46" (1/1) ... [2022-11-23 02:24:46,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:46" (1/1) ... [2022-11-23 02:24:46,316 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:46" (1/1) ... [2022-11-23 02:24:46,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:46" (1/1) ... [2022-11-23 02:24:46,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:24:46,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:24:46,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:24:46,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:24:46,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:46" (1/1) ... [2022-11-23 02:24:46,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:46,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:46,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:46,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-23 02:24:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:24:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:24:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:24:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:24:46,507 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:24:46,510 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:24:47,140 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:24:47,163 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:24:47,163 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-23 02:24:47,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:24:47 BoogieIcfgContainer [2022-11-23 02:24:47,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:24:47,167 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-23 02:24:47,167 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-23 02:24:47,171 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-23 02:24:47,171 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:24:47,172 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:24:45" (1/3) ... [2022-11-23 02:24:47,173 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68866f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:24:47, skipping insertion in model container [2022-11-23 02:24:47,173 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:24:47,173 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:24:46" (2/3) ... [2022-11-23 02:24:47,173 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68866f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:24:47, skipping insertion in model container [2022-11-23 02:24:47,174 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:24:47,174 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:24:47" (3/3) ... [2022-11-23 02:24:47,175 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2022-11-23 02:24:47,253 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-23 02:24:47,253 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-23 02:24:47,253 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-23 02:24:47,253 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-23 02:24:47,253 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-23 02:24:47,253 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-23 02:24:47,254 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-23 02:24:47,254 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-23 02:24:47,260 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 02:24:47,284 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-23 02:24:47,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:24:47,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:24:47,291 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-23 02:24:47,291 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:24:47,292 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-23 02:24:47,292 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 02:24:47,298 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-23 02:24:47,298 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:24:47,298 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:24:47,299 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-23 02:24:47,299 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:24:47,306 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_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~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_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#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 02:24:47,307 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 02:24:47,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:47,313 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2022-11-23 02:24:47,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:47,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126103438] [2022-11-23 02:24:47,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:47,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:47,643 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 02:24:47,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:24:47,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126103438] [2022-11-23 02:24:47,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126103438] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:24:47,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:24:47,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:24:47,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106861113] [2022-11-23 02:24:47,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:24:47,653 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:24:47,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:47,654 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2022-11-23 02:24:47,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:47,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730948613] [2022-11-23 02:24:47,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:47,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:47,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:24:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:47,690 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:24:47,745 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:47,746 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:47,747 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:47,747 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:47,747 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:24:47,747 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:47,747 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:47,748 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:47,748 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2022-11-23 02:24:47,748 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:47,748 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:47,765 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 02:24:47,796 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 02:24:47,965 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:47,966 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:24:47,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:47,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:47,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:47,978 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:24:47,979 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:47,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-23 02:24:48,021 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:24:48,021 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 02:24:48,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:48,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:48,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:48,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:48,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:24:48,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:48,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-23 02:24:48,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:48,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:48,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:48,076 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:48,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:24:48,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:48,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-23 02:24:48,135 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:24:48,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:48,144 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:48,144 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:48,144 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:48,145 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:48,145 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:24:48,145 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:48,145 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:48,145 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:48,145 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2022-11-23 02:24:48,145 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:48,146 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:48,147 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 02:24:48,158 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:24:48,268 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:48,272 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:24:48,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:48,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:48,280 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:48,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-23 02:24:48,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:24:48,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:24:48,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:24:48,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:24:48,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:24:48,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:24:48,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:24:48,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-23 02:24:48,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:24:48,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:48,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:48,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:48,329 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:48,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-23 02:24:48,339 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 02:24:48,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:24:48,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:24:48,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:24:48,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:24:48,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:24:48,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:24:48,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:24:48,363 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:24:48,367 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:24:48,368 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:24:48,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:48,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:48,390 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:48,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-23 02:24:48,395 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:24:48,395 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:24:48,395 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:24:48,396 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 02:24:48,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:48,405 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:24:48,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:48,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:24:48,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:48,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:24:48,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:48,504 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 02:24:48,566 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 02:24:48,572 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 02:24:48,685 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 02:24:48,691 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 02:24:48,696 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 02:24:48,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2022-11-23 02:24:48,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 371 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-23 02:24:48,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:48,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 371 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-23 02:24:48,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:48,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 371 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-23 02:24:48,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:48,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 328 states and 560 transitions. [2022-11-23 02:24:48,723 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2022-11-23 02:24:48,730 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 328 states to 109 states and 174 transitions. [2022-11-23 02:24:48,731 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2022-11-23 02:24:48,732 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2022-11-23 02:24:48,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 174 transitions. [2022-11-23 02:24:48,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:24:48,733 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 174 transitions. [2022-11-23 02:24:48,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 174 transitions. [2022-11-23 02:24:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 93. [2022-11-23 02:24:48,764 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 02:24:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 153 transitions. [2022-11-23 02:24:48,766 INFO L240 hiAutomatonCegarLoop]: Abstraction has 93 states and 153 transitions. [2022-11-23 02:24:48,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:24:48,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:24:48,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:24:48,769 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 02:24:48,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:24:48,844 INFO L93 Difference]: Finished difference Result 45 states and 66 transitions. [2022-11-23 02:24:48,844 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 66 transitions. [2022-11-23 02:24:48,845 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-23 02:24:48,846 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 66 transitions. [2022-11-23 02:24:48,846 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2022-11-23 02:24:48,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2022-11-23 02:24:48,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 66 transitions. [2022-11-23 02:24:48,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:24:48,847 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-23 02:24:48,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 66 transitions. [2022-11-23 02:24:48,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-23 02:24:48,849 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 02:24:48,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2022-11-23 02:24:48,850 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-23 02:24:48,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:24:48,851 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-23 02:24:48,851 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-23 02:24:48,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 66 transitions. [2022-11-23 02:24:48,852 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-23 02:24:48,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:24:48,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:24:48,853 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:24:48,853 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:24:48,853 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_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~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_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#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 02:24:48,854 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 02:24:48,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:48,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1807335815, now seen corresponding path program 1 times [2022-11-23 02:24:48,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:48,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001845744] [2022-11-23 02:24:48,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:48,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:48,866 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:24:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:48,878 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:24:48,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:48,879 INFO L85 PathProgramCache]: Analyzing trace with hash 134251, now seen corresponding path program 1 times [2022-11-23 02:24:48,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:48,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366529287] [2022-11-23 02:24:48,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:48,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:48,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:24:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:48,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:24:48,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:48,890 INFO L85 PathProgramCache]: Analyzing trace with hash 631346469, now seen corresponding path program 1 times [2022-11-23 02:24:48,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:48,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344169645] [2022-11-23 02:24:48,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:48,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:48,903 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:24:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:48,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:24:48,948 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:48,948 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:48,949 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:48,949 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:48,949 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:24:48,949 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:48,949 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:48,949 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:48,949 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2022-11-23 02:24:48,949 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:48,949 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:48,952 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 02:24:48,959 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 02:24:49,031 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:49,031 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:24:49,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:49,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:49,033 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:49,040 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:24:49,040 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:49,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-23 02:24:49,076 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:24:49,076 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 02:24:49,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:49,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:49,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:49,087 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:49,095 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:24:49,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:49,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-23 02:24:49,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:49,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:49,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:49,133 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:49,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-23 02:24:49,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:24:49,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:49,168 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:24:49,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:49,177 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:49,177 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:49,177 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:49,177 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:49,177 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:24:49,178 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:49,178 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:49,178 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:49,178 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2022-11-23 02:24:49,178 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:49,178 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:49,179 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 02:24:49,188 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 02:24:49,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:49,316 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:49,316 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:24:49,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:49,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:49,318 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:49,327 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 02:24:49,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:24:49,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:24:49,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:24:49,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:24:49,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:24:49,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:24:49,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:24:49,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-23 02:24:49,362 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:24:49,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:49,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:49,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:49,389 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:49,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-23 02:24:49,396 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 02:24:49,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:24:49,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:24:49,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:24:49,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:24:49,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:24:49,408 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:24:49,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:24:49,420 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:24:49,423 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:24:49,423 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:24:49,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:49,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:49,427 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:49,435 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:24:49,435 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:24:49,436 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:24:49,436 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 02:24:49,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-23 02:24:49,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:49,441 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:24:49,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:49,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:24:49,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:49,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:24:49,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:49,560 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 02:24:49,562 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 02:24:49,562 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 02:24:49,606 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 02:24:49,607 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 02:24:49,609 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 02:24:49,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2022-11-23 02:24:49,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-23 02:24:49,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:49,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-23 02:24:49,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:49,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-23 02:24:49,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:49,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 131 transitions. [2022-11-23 02:24:49,616 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2022-11-23 02:24:49,620 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 81 states and 118 transitions. [2022-11-23 02:24:49,621 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2022-11-23 02:24:49,622 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 78 [2022-11-23 02:24:49,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 118 transitions. [2022-11-23 02:24:49,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:24:49,625 INFO L218 hiAutomatonCegarLoop]: Abstraction has 81 states and 118 transitions. [2022-11-23 02:24:49,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 118 transitions. [2022-11-23 02:24:49,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 48. [2022-11-23 02:24:49,633 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 02:24:49,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2022-11-23 02:24:49,634 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 70 transitions. [2022-11-23 02:24:49,634 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 70 transitions. [2022-11-23 02:24:49,634 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-23 02:24:49,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 70 transitions. [2022-11-23 02:24:49,635 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-23 02:24:49,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:24:49,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:24:49,636 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:24:49,636 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:24:49,636 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_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~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_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#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 02:24:49,636 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 02:24:49,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:49,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1807335841, now seen corresponding path program 1 times [2022-11-23 02:24:49,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:49,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416631417] [2022-11-23 02:24:49,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:49,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:49,709 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 02:24:49,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:24:49,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416631417] [2022-11-23 02:24:49,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416631417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:24:49,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:24:49,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:24:49,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87316290] [2022-11-23 02:24:49,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:24:49,711 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:24:49,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:49,712 INFO L85 PathProgramCache]: Analyzing trace with hash 160010, now seen corresponding path program 1 times [2022-11-23 02:24:49,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:49,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904990793] [2022-11-23 02:24:49,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:49,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:49,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:24:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:49,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:24:49,754 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:49,755 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:49,755 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:49,755 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:49,755 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:24:49,755 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:49,755 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:49,755 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:49,756 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2022-11-23 02:24:49,756 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:49,756 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:49,757 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 02:24:49,764 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 02:24:49,874 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:49,874 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:24:49,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:49,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:49,876 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:49,885 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:24:49,885 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:49,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-23 02:24:49,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:49,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:49,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:49,917 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:49,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:24:49,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:49,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-23 02:24:49,966 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:24:49,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:49,974 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:49,974 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:49,974 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:49,974 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:49,974 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:24:49,974 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:49,974 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:49,975 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:49,975 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2022-11-23 02:24:49,975 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:49,975 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:49,976 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 02:24:49,983 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 02:24:50,080 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:50,080 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:24:50,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:50,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:50,082 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:50,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-23 02:24:50,095 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 02:24:50,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:24:50,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:24:50,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:24:50,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:24:50,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:24:50,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:24:50,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:24:50,130 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:24:50,133 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:24:50,133 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:24:50,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:50,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:50,139 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:50,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-23 02:24:50,141 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:24:50,141 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:24:50,141 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:24:50,141 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 02:24:50,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:50,146 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:24:50,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:50,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:24:50,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:50,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:24:50,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:50,213 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 02:24:50,214 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 02:24:50,217 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 02:24:50,245 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 02:24:50,246 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 02:24:50,248 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 02:24:50,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2022-11-23 02:24:50,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-23 02:24:50,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:50,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-23 02:24:50,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:50,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-23 02:24:50,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:50,250 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 134 transitions. [2022-11-23 02:24:50,251 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-23 02:24:50,253 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 83 states and 121 transitions. [2022-11-23 02:24:50,253 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2022-11-23 02:24:50,254 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2022-11-23 02:24:50,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 121 transitions. [2022-11-23 02:24:50,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:24:50,255 INFO L218 hiAutomatonCegarLoop]: Abstraction has 83 states and 121 transitions. [2022-11-23 02:24:50,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 121 transitions. [2022-11-23 02:24:50,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 51. [2022-11-23 02:24:50,264 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 02:24:50,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2022-11-23 02:24:50,266 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 74 transitions. [2022-11-23 02:24:50,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:24:50,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:24:50,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:24:50,267 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 02:24:50,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:24:50,331 INFO L93 Difference]: Finished difference Result 49 states and 67 transitions. [2022-11-23 02:24:50,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 67 transitions. [2022-11-23 02:24:50,334 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-23 02:24:50,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 67 transitions. [2022-11-23 02:24:50,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2022-11-23 02:24:50,336 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2022-11-23 02:24:50,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2022-11-23 02:24:50,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:24:50,336 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2022-11-23 02:24:50,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2022-11-23 02:24:50,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2022-11-23 02:24:50,348 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 02:24:50,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2022-11-23 02:24:50,349 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2022-11-23 02:24:50,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:24:50,352 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 63 transitions. [2022-11-23 02:24:50,353 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-23 02:24:50,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 63 transitions. [2022-11-23 02:24:50,354 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-23 02:24:50,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:24:50,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:24:50,356 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:24:50,357 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:24:50,357 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_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~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_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#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 02:24:50,357 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 02:24:50,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:50,358 INFO L85 PathProgramCache]: Analyzing trace with hash 780922602, now seen corresponding path program 1 times [2022-11-23 02:24:50,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:50,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915127944] [2022-11-23 02:24:50,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:50,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:50,444 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 02:24:50,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:24:50,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915127944] [2022-11-23 02:24:50,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915127944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:24:50,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:24:50,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:24:50,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727966928] [2022-11-23 02:24:50,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:24:50,446 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:24:50,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:50,446 INFO L85 PathProgramCache]: Analyzing trace with hash 245408, now seen corresponding path program 1 times [2022-11-23 02:24:50,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:50,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959863432] [2022-11-23 02:24:50,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:50,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:50,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:24:50,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:50,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:24:50,490 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:50,491 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:50,491 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:50,491 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:50,491 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:24:50,491 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:50,491 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:50,491 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:50,491 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2022-11-23 02:24:50,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:50,492 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:50,493 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 02:24:50,500 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 02:24:50,598 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:50,599 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:24:50,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:50,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:50,600 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:50,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:24:50,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:50,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-23 02:24:50,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:50,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:50,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:50,647 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:50,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:24:50,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:50,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-23 02:24:50,688 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:24:50,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:50,697 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:50,697 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:50,697 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:50,697 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:50,697 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:24:50,697 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:50,697 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:50,697 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:50,697 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2022-11-23 02:24:50,698 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:50,698 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:50,698 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 02:24:50,705 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 02:24:50,799 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:50,800 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:24:50,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:50,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:50,801 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:50,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-23 02:24:50,816 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 02:24:50,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:24:50,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:24:50,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:24:50,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:24:50,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:24:50,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:24:50,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:24:50,840 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:24:50,845 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:24:50,845 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:24:50,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:50,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:50,849 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:50,850 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:24:50,850 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:24:50,851 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:24:50,851 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 02:24:50,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-23 02:24:50,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:50,861 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:24:50,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:50,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:24:50,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:50,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:24:50,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:50,921 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 02:24:50,922 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 02:24:50,922 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 02:24:50,939 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 02:24:50,940 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 02:24:50,940 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 02:24:50,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2022-11-23 02:24:50,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-23 02:24:50,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:50,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-23 02:24:50,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:50,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 6 letters. [2022-11-23 02:24:50,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:50,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 101 transitions. [2022-11-23 02:24:50,942 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-23 02:24:50,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 64 states and 88 transitions. [2022-11-23 02:24:50,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-11-23 02:24:50,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2022-11-23 02:24:50,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 88 transitions. [2022-11-23 02:24:50,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:24:50,944 INFO L218 hiAutomatonCegarLoop]: Abstraction has 64 states and 88 transitions. [2022-11-23 02:24:50,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 88 transitions. [2022-11-23 02:24:50,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 48. [2022-11-23 02:24:50,945 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 02:24:50,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2022-11-23 02:24:50,945 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 67 transitions. [2022-11-23 02:24:50,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:24:50,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:24:50,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:24:50,946 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 02:24:50,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:24:50,978 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2022-11-23 02:24:50,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 68 transitions. [2022-11-23 02:24:50,979 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-23 02:24:50,979 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 49 states and 67 transitions. [2022-11-23 02:24:50,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-23 02:24:50,980 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-11-23 02:24:50,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2022-11-23 02:24:50,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:24:50,980 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2022-11-23 02:24:50,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2022-11-23 02:24:50,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2022-11-23 02:24:50,999 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 02:24:50,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2022-11-23 02:24:50,999 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 66 transitions. [2022-11-23 02:24:51,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:24:51,000 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 66 transitions. [2022-11-23 02:24:51,000 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-23 02:24:51,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 66 transitions. [2022-11-23 02:24:51,001 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-23 02:24:51,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:24:51,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:24:51,002 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:24:51,002 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:24:51,002 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_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~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_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#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 02:24:51,003 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 02:24:51,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:51,003 INFO L85 PathProgramCache]: Analyzing trace with hash 136451054, now seen corresponding path program 1 times [2022-11-23 02:24:51,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:51,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653772154] [2022-11-23 02:24:51,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:51,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:51,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:51,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:51,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:51,093 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 02:24:51,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:24:51,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653772154] [2022-11-23 02:24:51,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653772154] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:24:51,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774642594] [2022-11-23 02:24:51,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:51,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:24:51,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:51,096 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:24:51,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-23 02:24:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:51,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:24:51,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:51,188 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 02:24:51,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:24:51,223 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 02:24:51,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774642594] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:24:51,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 02:24:51,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-23 02:24:51,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261141125] [2022-11-23 02:24:51,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 02:24:51,225 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:24:51,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:51,225 INFO L85 PathProgramCache]: Analyzing trace with hash 219649, now seen corresponding path program 1 times [2022-11-23 02:24:51,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:51,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666544032] [2022-11-23 02:24:51,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:51,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:51,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:24:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:51,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:24:51,263 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:51,263 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:51,263 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:51,264 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:51,264 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:24:51,264 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:51,264 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:51,264 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:51,264 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2022-11-23 02:24:51,264 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:51,264 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:51,265 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:24:51,272 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 02:24:51,340 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:51,340 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:24:51,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:51,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:51,342 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:51,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:24:51,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:51,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-23 02:24:51,391 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:24:51,392 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 02:24:51,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:51,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:51,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:51,401 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:51,405 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:24:51,405 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:51,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-23 02:24:51,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:51,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:51,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:51,444 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:51,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:24:51,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:51,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-23 02:24:51,482 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:24:51,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:51,491 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:51,491 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:51,491 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:51,491 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:51,491 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:24:51,491 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:51,491 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:51,491 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:51,491 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2022-11-23 02:24:51,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:51,492 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:51,492 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 02:24:51,499 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 02:24:51,566 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:51,566 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:24:51,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:51,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:51,568 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:51,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-23 02:24:51,573 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 02:24:51,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:24:51,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:24:51,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:24:51,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:24:51,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:24:51,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:24:51,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:24:51,598 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:24:51,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:51,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:51,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:51,611 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:51,614 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 02:24:51,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-23 02:24:51,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:24:51,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:24:51,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:24:51,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:24:51,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:24:51,630 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:24:51,630 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:24:51,639 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:24:51,642 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:24:51,642 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:24:51,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:51,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:51,643 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:51,647 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:24:51,648 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:24:51,648 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:24:51,648 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 02:24:51,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-23 02:24:51,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:51,652 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:24:51,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:51,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:24:51,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:51,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:24:51,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:51,734 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 02:24:51,734 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 02:24:51,735 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 02:24:51,752 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 02:24:51,753 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 02:24:51,753 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 02:24:51,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2022-11-23 02:24:51,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-23 02:24:51,754 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:51,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 19 letters. Loop has 3 letters. [2022-11-23 02:24:51,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:51,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 6 letters. [2022-11-23 02:24:51,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:51,755 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 105 transitions. [2022-11-23 02:24:51,756 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-23 02:24:51,757 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 68 states and 92 transitions. [2022-11-23 02:24:51,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-11-23 02:24:51,757 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-11-23 02:24:51,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 92 transitions. [2022-11-23 02:24:51,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:24:51,758 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 92 transitions. [2022-11-23 02:24:51,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 92 transitions. [2022-11-23 02:24:51,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 51. [2022-11-23 02:24:51,759 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 02:24:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-11-23 02:24:51,760 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-11-23 02:24:51,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:24:51,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:24:51,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:24:51,761 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 02:24:51,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:24:51,830 INFO L93 Difference]: Finished difference Result 93 states and 124 transitions. [2022-11-23 02:24:51,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 124 transitions. [2022-11-23 02:24:51,831 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-23 02:24:51,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 87 states and 118 transitions. [2022-11-23 02:24:51,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2022-11-23 02:24:51,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2022-11-23 02:24:51,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 118 transitions. [2022-11-23 02:24:51,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:24:51,833 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 118 transitions. [2022-11-23 02:24:51,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 118 transitions. [2022-11-23 02:24:51,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 64. [2022-11-23 02:24:51,834 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 02:24:51,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 89 transitions. [2022-11-23 02:24:51,835 INFO L240 hiAutomatonCegarLoop]: Abstraction has 64 states and 89 transitions. [2022-11-23 02:24:51,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 02:24:51,836 INFO L428 stractBuchiCegarLoop]: Abstraction has 64 states and 89 transitions. [2022-11-23 02:24:51,836 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-23 02:24:51,836 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 64 states and 89 transitions. [2022-11-23 02:24:51,837 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-23 02:24:51,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:24:51,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:24:51,837 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 02:24:51,838 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:24:51,838 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_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~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_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#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 02:24:51,838 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 02:24:51,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:51,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1276938091, now seen corresponding path program 1 times [2022-11-23 02:24:51,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:51,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978770416] [2022-11-23 02:24:51,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:51,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:51,933 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 02:24:51,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:24:51,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978770416] [2022-11-23 02:24:51,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978770416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:24:51,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:24:51,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:24:51,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177117152] [2022-11-23 02:24:51,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:24:51,934 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:24:51,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:51,935 INFO L85 PathProgramCache]: Analyzing trace with hash 330806, now seen corresponding path program 1 times [2022-11-23 02:24:51,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:51,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432042003] [2022-11-23 02:24:51,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:51,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:51,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:24:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:51,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:24:51,972 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:51,972 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:51,972 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:51,972 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:51,972 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:24:51,972 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:51,973 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:51,973 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:51,973 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2022-11-23 02:24:51,973 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:51,973 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:51,974 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 02:24:51,981 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:24:52,068 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:52,068 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:24:52,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:52,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:52,070 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:52,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:24:52,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:52,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-23 02:24:52,115 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:24:52,115 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 02:24:52,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:52,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:52,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:52,125 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:52,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:24:52,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:52,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-23 02:24:52,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:52,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:52,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:52,160 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:52,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:24:52,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:52,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-23 02:24:52,207 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:24:52,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:52,216 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:52,216 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:52,216 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:52,216 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:52,216 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:24:52,217 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:52,217 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:52,217 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:52,217 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2022-11-23 02:24:52,217 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:52,217 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:52,218 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 02:24:52,226 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 02:24:52,316 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:52,316 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:24:52,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:52,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:52,318 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:52,324 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 02:24:52,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:24:52,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:24:52,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:24:52,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:24:52,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:24:52,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:24:52,338 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:24:52,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-23 02:24:52,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:24:52,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:52,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:52,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:52,363 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:52,366 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 02:24:52,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:24:52,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:24:52,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:24:52,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:24:52,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:24:52,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-23 02:24:52,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:24:52,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:24:52,402 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:24:52,405 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:24:52,405 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:24:52,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:52,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:52,406 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:52,411 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:24:52,411 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:24:52,411 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:24:52,411 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 02:24:52,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-23 02:24:52,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:52,420 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:24:52,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:52,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:24:52,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:52,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:24:52,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:52,498 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 02:24:52,499 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 02:24:52,499 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 02:24:52,504 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 02:24:52,505 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 02:24:52,505 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 02:24:52,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2022-11-23 02:24:52,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 21 letters. Loop has 3 letters. [2022-11-23 02:24:52,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:52,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 24 letters. Loop has 3 letters. [2022-11-23 02:24:52,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:52,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 21 letters. Loop has 6 letters. [2022-11-23 02:24:52,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:52,507 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 93 transitions. [2022-11-23 02:24:52,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-23 02:24:52,508 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 61 states and 85 transitions. [2022-11-23 02:24:52,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2022-11-23 02:24:52,509 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2022-11-23 02:24:52,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 85 transitions. [2022-11-23 02:24:52,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:24:52,509 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 85 transitions. [2022-11-23 02:24:52,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 85 transitions. [2022-11-23 02:24:52,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-23 02:24:52,511 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 02:24:52,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 85 transitions. [2022-11-23 02:24:52,511 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 85 transitions. [2022-11-23 02:24:52,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:24:52,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:24:52,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:24:52,512 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 02:24:52,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:24:52,576 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2022-11-23 02:24:52,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 84 transitions. [2022-11-23 02:24:52,577 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-23 02:24:52,577 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 61 states and 84 transitions. [2022-11-23 02:24:52,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2022-11-23 02:24:52,578 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2022-11-23 02:24:52,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 84 transitions. [2022-11-23 02:24:52,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:24:52,578 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 84 transitions. [2022-11-23 02:24:52,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 84 transitions. [2022-11-23 02:24:52,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-23 02:24:52,580 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 02:24:52,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2022-11-23 02:24:52,580 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 84 transitions. [2022-11-23 02:24:52,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:24:52,581 INFO L428 stractBuchiCegarLoop]: Abstraction has 61 states and 84 transitions. [2022-11-23 02:24:52,581 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-23 02:24:52,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 84 transitions. [2022-11-23 02:24:52,582 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-23 02:24:52,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:24:52,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:24:52,583 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 02:24:52,583 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-23 02:24:52,584 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_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~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_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#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 02:24:52,584 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 02:24:52,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:52,584 INFO L85 PathProgramCache]: Analyzing trace with hash -611737703, now seen corresponding path program 1 times [2022-11-23 02:24:52,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:52,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815159528] [2022-11-23 02:24:52,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:52,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:52,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:52,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:52,716 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 02:24:52,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:24:52,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815159528] [2022-11-23 02:24:52,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815159528] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:24:52,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905259108] [2022-11-23 02:24:52,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:52,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:24:52,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:52,718 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:24:52,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-11-23 02:24:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:52,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 02:24:52,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:52,863 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 02:24:52,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:24:52,913 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 02:24:52,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905259108] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:24:52,913 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 02:24:52,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-23 02:24:52,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871795576] [2022-11-23 02:24:52,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 02:24:52,914 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:24:52,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:52,914 INFO L85 PathProgramCache]: Analyzing trace with hash 305047, now seen corresponding path program 1 times [2022-11-23 02:24:52,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:24:52,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224917020] [2022-11-23 02:24:52,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:24:52,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:24:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:52,918 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:24:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:24:52,920 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:24:52,948 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:52,948 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:52,948 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:52,948 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:52,949 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:24:52,949 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:52,949 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:52,949 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:52,949 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration7_Loop [2022-11-23 02:24:52,949 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:52,949 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:52,950 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 02:24:52,955 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 02:24:53,023 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:53,023 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:24:53,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:53,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:53,025 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:53,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:24:53,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:53,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-23 02:24:53,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:53,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:53,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:53,059 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:53,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:24:53,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:24:53,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-23 02:24:53,100 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:24:53,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:53,109 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:24:53,109 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:24:53,109 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:24:53,109 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:24:53,109 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:24:53,109 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:53,109 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:24:53,109 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:24:53,109 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration7_Loop [2022-11-23 02:24:53,109 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:24:53,109 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:24:53,110 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 02:24:53,116 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 02:24:53,183 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:24:53,183 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:24:53,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:53,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:53,187 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:53,192 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 02:24:53,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-23 02:24:53,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:24:53,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:24:53,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:24:53,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:24:53,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:24:53,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:24:53,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:24:53,222 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:24:53,226 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:24:53,226 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:24:53,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:24:53,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:24:53,228 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:24:53,236 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:24:53,236 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:24:53,237 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:24:53,237 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 02:24:53,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-23 02:24:53,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:53,248 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:24:53,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:24:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:53,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 02:24:53,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:24:53,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:24:53,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:24:53,354 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 02:24:53,354 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 02:24:53,355 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 02:24:53,361 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 02:24:53,361 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 02:24:53,363 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 02:24:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2022-11-23 02:24:53,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 56 transitions. Stem has 24 letters. Loop has 3 letters. [2022-11-23 02:24:53,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:53,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 56 transitions. Stem has 27 letters. Loop has 3 letters. [2022-11-23 02:24:53,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:53,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 56 transitions. Stem has 24 letters. Loop has 6 letters. [2022-11-23 02:24:53,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:24:53,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 88 transitions. [2022-11-23 02:24:53,366 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 02:24:53,366 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 0 states and 0 transitions. [2022-11-23 02:24:53,366 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-23 02:24:53,366 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-23 02:24:53,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-23 02:24:53,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:24:53,367 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:24:53,367 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:24:53,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:24:53,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 02:24:53,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-23 02:24:53,368 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 02:24:53,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:24:53,368 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-23 02:24:53,369 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-23 02:24:53,369 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 02:24:53,369 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 02:24:53,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-23 02:24:53,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-23 02:24:53,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-23 02:24:53,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:24:53,369 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:24:53,370 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:24:53,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:24:53,371 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:24:53,371 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-23 02:24:53,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-23 02:24:53,371 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 02:24:53,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-23 02:24:53,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:24:53 BoogieIcfgContainer [2022-11-23 02:24:53,381 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-23 02:24:53,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:24:53,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:24:53,382 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:24:53,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:24:47" (3/4) ... [2022-11-23 02:24:53,386 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 02:24:53,386 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:24:53,386 INFO L158 Benchmark]: Toolchain (without parser) took 7548.04ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 136.4MB in the beginning and 114.5MB in the end (delta: 21.9MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2022-11-23 02:24:53,387 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 127.9MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:24:53,387 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.19ms. Allocated memory is still 165.7MB. Free memory was 136.2MB in the beginning and 124.5MB in the end (delta: 11.7MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-11-23 02:24:53,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.01ms. Allocated memory is still 165.7MB. Free memory was 124.5MB in the beginning and 121.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:24:53,388 INFO L158 Benchmark]: Boogie Preprocessor took 40.55ms. Allocated memory is still 165.7MB. Free memory was 121.0MB in the beginning and 118.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:24:53,388 INFO L158 Benchmark]: RCFGBuilder took 842.55ms. Allocated memory is still 165.7MB. Free memory was 118.9MB in the beginning and 90.9MB in the end (delta: 28.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-23 02:24:53,388 INFO L158 Benchmark]: BuchiAutomizer took 6214.85ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 90.9MB in the beginning and 114.5MB in the end (delta: -23.5MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-11-23 02:24:53,388 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 199.2MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:24:53,390 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 127.9MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.19ms. Allocated memory is still 165.7MB. Free memory was 136.2MB in the beginning and 124.5MB in the end (delta: 11.7MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.01ms. Allocated memory is still 165.7MB. Free memory was 124.5MB in the beginning and 121.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.55ms. Allocated memory is still 165.7MB. Free memory was 121.0MB in the beginning and 118.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 842.55ms. Allocated memory is still 165.7MB. Free memory was 118.9MB in the beginning and 90.9MB in the end (delta: 28.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 6214.85ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 90.9MB in the beginning and 114.5MB in the end (delta: -23.5MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 199.2MB. Free memory is still 114.5MB. 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 6.1s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 4.6s. 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, 0.3s 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: 36ms 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 02:24:53,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-23 02:24:53,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2022-11-23 02:24:53,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-11-23 02:24:54,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a966b942-4a76-4811-9058-556d41a2d6fa/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