./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/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_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt --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 6029375071a37af887817933cb6d522f173528f0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:06:00,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:06:00,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:06:00,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:06:00,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:06:00,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:06:00,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:06:00,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:06:00,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:06:00,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:06:00,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:06:00,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:06:00,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:06:00,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:06:00,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:06:00,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:06:00,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:06:00,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:06:00,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:06:00,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:06:00,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:06:00,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:06:00,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:06:00,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:06:00,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:06:00,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:06:00,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:06:00,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:06:00,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:06:00,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:06:00,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:06:00,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:06:00,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:06:00,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:06:00,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:06:00,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:06:00,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:06:00,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:06:00,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:06:00,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:06:00,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:06:00,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:06:00,843 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:06:00,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:06:00,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:06:00,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:06:00,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:06:00,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:06:00,851 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:06:00,851 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:06:00,852 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:06:00,852 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:06:00,852 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:06:00,852 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:06:00,852 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:06:00,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:06:00,853 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:06:00,853 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:06:00,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:06:00,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:06:00,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:06:00,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:06:00,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:06:00,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:06:00,854 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:06:00,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:06:00,855 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:06:00,855 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:06:00,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:06:00,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:06:00,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:06:00,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:06:00,856 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:06:00,856 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:06:00,857 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:06:00,858 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_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6029375071a37af887817933cb6d522f173528f0 [2021-10-13 01:06:01,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:06:01,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:06:01,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:06:01,337 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:06:01,340 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:06:01,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2021-10-13 01:06:01,434 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/data/b7bb8e453/b481739856b34f15a305896464af1fa3/FLAG151cdddc5 [2021-10-13 01:06:02,030 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:06:02,033 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2021-10-13 01:06:02,049 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/data/b7bb8e453/b481739856b34f15a305896464af1fa3/FLAG151cdddc5 [2021-10-13 01:06:02,366 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/data/b7bb8e453/b481739856b34f15a305896464af1fa3 [2021-10-13 01:06:02,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:06:02,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:06:02,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:06:02,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:06:02,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:06:02,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:06:02" (1/1) ... [2021-10-13 01:06:02,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343369e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:02, skipping insertion in model container [2021-10-13 01:06:02,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:06:02" (1/1) ... [2021-10-13 01:06:02,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:06:02,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:06:02,647 WARN L228 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_a33739d4-b91f-43a9-be8c-4be432f1f7d1/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[423,436] [2021-10-13 01:06:02,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:06:02,717 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:06:02,733 WARN L228 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_a33739d4-b91f-43a9-be8c-4be432f1f7d1/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[423,436] [2021-10-13 01:06:02,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:06:02,802 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:06:02,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:02 WrapperNode [2021-10-13 01:06:02,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:06:02,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:06:02,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:06:02,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:06:02,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:02" (1/1) ... [2021-10-13 01:06:02,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:02" (1/1) ... [2021-10-13 01:06:02,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:06:02,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:06:02,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:06:02,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:06:02,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:02" (1/1) ... [2021-10-13 01:06:02,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:02" (1/1) ... [2021-10-13 01:06:02,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:02" (1/1) ... [2021-10-13 01:06:02,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:02" (1/1) ... [2021-10-13 01:06:02,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:02" (1/1) ... [2021-10-13 01:06:02,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:02" (1/1) ... [2021-10-13 01:06:02,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:02" (1/1) ... [2021-10-13 01:06:02,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:06:02,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:06:02,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:06:02,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:06:02,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:02" (1/1) ... [2021-10-13 01:06:02,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:03,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:03,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:03,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:06:03,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:06:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:06:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:06:03,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:06:03,794 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:06:03,794 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-13 01:06:03,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:06:03 BoogieIcfgContainer [2021-10-13 01:06:03,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:06:03,798 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:06:03,798 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:06:03,812 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:06:03,813 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:06:03,815 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:06:02" (1/3) ... [2021-10-13 01:06:03,817 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11f04290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:06:03, skipping insertion in model container [2021-10-13 01:06:03,817 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:06:03,818 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:02" (2/3) ... [2021-10-13 01:06:03,818 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11f04290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:06:03, skipping insertion in model container [2021-10-13 01:06:03,818 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:06:03,819 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:06:03" (3/3) ... [2021-10-13 01:06:03,823 INFO L389 chiAutomizerObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2021-10-13 01:06:03,893 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:06:03,894 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:06:03,894 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:06:03,894 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:06:03,894 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:06:03,894 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:06:03,895 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:06:03,895 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:06:03,919 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 71 states, 70 states have (on average 1.7571428571428571) internal successors, (123), 70 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:03,953 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2021-10-13 01:06:03,953 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:03,954 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:03,962 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 01:06:03,962 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:06:03,962 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:06:03,963 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 71 states, 70 states have (on average 1.7571428571428571) internal successors, (123), 70 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:03,971 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2021-10-13 01:06:03,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:03,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:03,973 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 01:06:03,973 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:06:03,982 INFO L791 eck$LassoCheckResult]: Stem: 56#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 40#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 28#L21true assume !(0 == base2flt_~m % 4294967296); 18#L27true assume !(base2flt_~m % 4294967296 < 16777216); 35#L49-2true [2021-10-13 01:06:03,982 INFO L793 eck$LassoCheckResult]: Loop: 35#L49-2true assume !false; 41#L50true assume base2flt_~m % 4294967296 >= 33554432; 34#L51true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 35#L49-2true [2021-10-13 01:06:03,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:03,990 INFO L82 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2021-10-13 01:06:04,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:04,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896411282] [2021-10-13 01:06:04,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:04,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:04,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:04,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:06:04,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896411282] [2021-10-13 01:06:04,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896411282] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:06:04,367 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:06:04,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:06:04,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388030510] [2021-10-13 01:06:04,377 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:06:04,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:04,383 INFO L82 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2021-10-13 01:06:04,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:04,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498956615] [2021-10-13 01:06:04,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:04,386 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:04,418 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:04,468 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:04,579 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:04,580 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:04,580 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:04,581 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:04,581 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:06:04,581 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:04,581 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:04,582 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:04,582 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2021-10-13 01:06:04,582 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:04,582 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:04,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:04,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:04,766 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:04,768 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:06:04,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:04,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:04,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:04,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 01:06:04,865 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:06:04,869 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:04,929 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:06:04,930 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:06:04,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:04,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:04,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:04,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:04,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 01:06:04,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:06:04,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:05,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-13 01:06:05,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:05,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:05,016 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:05,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 01:06:05,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:06:05,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:05,078 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:06:05,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:05,082 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:05,082 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:05,082 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:05,082 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:05,083 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:06:05,083 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:05,083 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:05,083 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:05,083 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2021-10-13 01:06:05,083 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:05,083 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:05,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:05,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:05,212 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:05,219 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:06:05,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:05,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:05,222 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:05,230 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 [2021-10-13 01:06:05,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:06:05,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:06:05,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:06:05,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:06:05,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:06:05,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 01:06:05,253 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:06:05,253 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:06:05,285 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:06:05,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:05,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:05,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:05,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:05,346 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 [2021-10-13 01:06:05,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 01:06:05,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:06:05,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:06:05,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:06:05,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:06:05,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:06:05,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:06:05,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:06:05,365 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:06:05,382 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:06:05,382 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:06:05,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:05,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:05,386 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:05,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 01:06:05,406 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:06:05,406 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:06:05,406 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:06:05,407 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-13 01:06:05,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:05,440 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:06:05,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:05,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:06:05,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:05,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:06:05,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:05,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:05,580 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 01:06:05,583 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 71 states, 70 states have (on average 1.7571428571428571) internal successors, (123), 70 states have internal predecessors, (123), 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) [2021-10-13 01:06:05,712 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 71 states, 70 states have (on average 1.7571428571428571) internal successors, (123), 70 states have internal predecessors, (123), 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 204 states and 344 transitions. Complement of second has 6 states. [2021-10-13 01:06:05,715 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 [2021-10-13 01:06:05,717 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) [2021-10-13 01:06:05,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 228 transitions. [2021-10-13 01:06:05,721 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 228 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-13 01:06:05,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:05,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 228 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 01:06:05,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:05,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 228 transitions. Stem has 4 letters. Loop has 6 letters. [2021-10-13 01:06:05,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:05,725 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 204 states and 344 transitions. [2021-10-13 01:06:05,750 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2021-10-13 01:06:05,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 204 states to 79 states and 120 transitions. [2021-10-13 01:06:05,767 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2021-10-13 01:06:05,768 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 76 [2021-10-13 01:06:05,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 79 states and 120 transitions. [2021-10-13 01:06:05,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:06:05,769 INFO L681 BuchiCegarLoop]: Abstraction has 79 states and 120 transitions. [2021-10-13 01:06:05,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states and 120 transitions. [2021-10-13 01:06:05,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 68. [2021-10-13 01:06:05,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 68 states have (on average 1.588235294117647) internal successors, (108), 67 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:05,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 108 transitions. [2021-10-13 01:06:05,801 INFO L704 BuchiCegarLoop]: Abstraction has 68 states and 108 transitions. [2021-10-13 01:06:05,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:06:05,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:06:05,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:06:05,805 INFO L87 Difference]: Start difference. First operand 68 states and 108 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) [2021-10-13 01:06:05,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:06:05,877 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2021-10-13 01:06:05,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:06:05,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 48 transitions. [2021-10-13 01:06:05,880 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-10-13 01:06:05,881 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 35 states and 48 transitions. [2021-10-13 01:06:05,881 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2021-10-13 01:06:05,881 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-10-13 01:06:05,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 48 transitions. [2021-10-13 01:06:05,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:06:05,882 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-13 01:06:05,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 48 transitions. [2021-10-13 01:06:05,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-13 01:06:05,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 34 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:05,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2021-10-13 01:06:05,887 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-13 01:06:05,887 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-13 01:06:05,887 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:06:05,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 48 transitions. [2021-10-13 01:06:05,888 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-10-13 01:06:05,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:05,889 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:05,889 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:05,889 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:06:05,890 INFO L791 eck$LassoCheckResult]: Stem: 451#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 436#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 437#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 430#L71 base2flt_#res := base2flt_~__retres4~0; 431#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 444#L21-1 assume !(0 == base2flt_~m % 4294967296); 445#L27-1 assume !(base2flt_~m % 4294967296 < 16777216); 432#L49-5 [2021-10-13 01:06:05,890 INFO L793 eck$LassoCheckResult]: Loop: 432#L49-5 assume !false; 433#L50-1 assume base2flt_~m % 4294967296 >= 33554432; 434#L51-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 432#L49-5 [2021-10-13 01:06:05,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:05,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2021-10-13 01:06:05,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:05,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242366435] [2021-10-13 01:06:05,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:05,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:05,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:05,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:06:05,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242366435] [2021-10-13 01:06:05,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242366435] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:06:05,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:06:05,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:06:05,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455082669] [2021-10-13 01:06:05,960 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:06:05,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:05,961 INFO L82 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2021-10-13 01:06:05,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:05,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496104051] [2021-10-13 01:06:05,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:05,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:05,973 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:05,983 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:06,029 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:06,029 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:06,029 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:06,030 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:06,030 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:06:06,030 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:06,030 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:06,030 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:06,030 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2021-10-13 01:06:06,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:06,031 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:06,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:06,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:06,138 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:06,138 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:06:06,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:06,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:06,140 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:06,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:06:06,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:06,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 01:06:06,250 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:06:06,250 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:06:06,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:06,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:06,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:06,262 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:06,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 01:06:06,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:06:06,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:06,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:06,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:06,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:06,308 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:06,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 01:06:06,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:06:06,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:06,367 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:06:06,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-10-13 01:06:06,371 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:06,372 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:06,372 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:06,372 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:06,372 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:06:06,373 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:06,373 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:06,373 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:06,373 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2021-10-13 01:06:06,373 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:06,373 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:06,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:06,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:06,514 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:06,514 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:06:06,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:06,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:06,517 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:06,530 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 [2021-10-13 01:06:06,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:06:06,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:06:06,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:06:06,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:06:06,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:06:06,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:06:06,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:06:06,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 01:06:06,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:06:06,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:06,606 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:06,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:06,613 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:06,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:06:06,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 01:06:06,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:06:06,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:06:06,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:06:06,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:06:06,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:06:06,692 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:06:06,692 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:06:06,702 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:06:06,705 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:06:06,705 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:06:06,706 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:06,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:06,708 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:06,714 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:06:06,714 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:06:06,715 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:06:06,715 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-13 01:06:06,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 01:06:06,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:06,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:06,766 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:06:06,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:06,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:06:06,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:06,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:06:06,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:06,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:06,882 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 01:06:06,882 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 48 transitions. cyclomatic complexity: 19 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) [2021-10-13 01:06:06,908 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 48 transitions. cyclomatic complexity: 19. 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 63 states and 85 transitions. Complement of second has 5 states. [2021-10-13 01:06:06,915 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 [2021-10-13 01:06:06,915 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) [2021-10-13 01:06:06,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2021-10-13 01:06:06,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 01:06:06,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:06,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-13 01:06:06,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:06,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-13 01:06:06,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:06,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 85 transitions. [2021-10-13 01:06:06,920 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2021-10-13 01:06:06,924 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 60 states and 81 transitions. [2021-10-13 01:06:06,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-10-13 01:06:06,926 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2021-10-13 01:06:06,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 81 transitions. [2021-10-13 01:06:06,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:06:06,927 INFO L681 BuchiCegarLoop]: Abstraction has 60 states and 81 transitions. [2021-10-13 01:06:06,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 81 transitions. [2021-10-13 01:06:06,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 38. [2021-10-13 01:06:06,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.368421052631579) internal successors, (52), 37 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:06,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2021-10-13 01:06:06,941 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 52 transitions. [2021-10-13 01:06:06,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:06:06,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:06:06,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:06:06,947 INFO L87 Difference]: Start difference. First operand 38 states and 52 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) [2021-10-13 01:06:07,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:06:07,011 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2021-10-13 01:06:07,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:06:07,012 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 46 transitions. [2021-10-13 01:06:07,013 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-13 01:06:07,014 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 46 transitions. [2021-10-13 01:06:07,014 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-13 01:06:07,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-13 01:06:07,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 46 transitions. [2021-10-13 01:06:07,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:06:07,016 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-10-13 01:06:07,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 46 transitions. [2021-10-13 01:06:07,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2021-10-13 01:06:07,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.28125) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:07,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2021-10-13 01:06:07,024 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2021-10-13 01:06:07,025 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 41 transitions. [2021-10-13 01:06:07,025 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:06:07,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 41 transitions. [2021-10-13 01:06:07,026 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-13 01:06:07,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:07,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:07,027 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:07,028 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:06:07,028 INFO L791 eck$LassoCheckResult]: Stem: 667#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 653#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 654#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 651#L71 base2flt_#res := base2flt_~__retres4~0; 652#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 662#L21-1 assume !(0 == base2flt_~m % 4294967296); 663#L27-1 assume base2flt_~m % 4294967296 < 16777216; 664#L39-3 [2021-10-13 01:06:07,028 INFO L793 eck$LassoCheckResult]: Loop: 664#L39-3 assume !false; 665#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 672#L39-2 assume base2flt_~m % 4294967296 < 16777216; 664#L39-3 [2021-10-13 01:06:07,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:07,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2021-10-13 01:06:07,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:07,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987803572] [2021-10-13 01:06:07,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:07,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:07,074 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:07,107 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:07,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:07,108 INFO L82 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2021-10-13 01:06:07,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:07,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383285921] [2021-10-13 01:06:07,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:07,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:07,116 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:07,122 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:07,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:07,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2021-10-13 01:06:07,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:07,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288719486] [2021-10-13 01:06:07,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:07,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:07,144 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:07,188 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:07,246 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:07,246 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:07,246 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:07,246 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:07,247 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:06:07,247 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:07,247 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:07,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:07,247 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2021-10-13 01:06:07,248 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:07,248 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:07,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:07,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:07,345 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:07,345 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:06:07,346 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:07,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:07,347 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:07,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:06:07,355 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:07,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 01:06:07,430 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:06:07,430 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:06:07,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:07,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:07,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:07,441 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:07,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 01:06:07,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:06:07,446 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:07,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:07,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:07,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:07,519 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:07,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:06:07,527 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:07,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 01:06:07,581 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:06:07,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-10-13 01:06:07,584 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:07,585 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:07,585 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:07,585 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:07,585 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:06:07,585 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:07,585 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:07,585 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:07,585 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2021-10-13 01:06:07,585 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:07,586 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:07,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:07,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:07,685 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:07,686 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:06:07,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:07,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:07,687 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:07,694 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 [2021-10-13 01:06:07,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:06:07,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:06:07,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:06:07,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:06:07,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:06:07,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 01:06:07,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:06:07,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:06:07,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:06:07,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:07,777 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:07,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:07,779 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:07,787 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 [2021-10-13 01:06:07,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 01:06:07,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:06:07,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:06:07,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:06:07,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:06:07,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:06:07,805 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:06:07,805 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:06:07,807 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:06:07,811 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:06:07,812 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:06:07,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:07,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:07,817 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:07,822 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:06:07,822 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:06:07,822 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:06:07,822 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2021-10-13 01:06:07,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 01:06:07,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:07,852 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:06:07,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:07,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:06:07,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:07,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:06:07,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:08,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:08,033 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 01:06:08,034 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 14 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) [2021-10-13 01:06:08,052 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 41 transitions. cyclomatic complexity: 14. 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 39 states and 50 transitions. Complement of second has 5 states. [2021-10-13 01:06:08,053 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 [2021-10-13 01:06:08,053 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) [2021-10-13 01:06:08,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2021-10-13 01:06:08,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 01:06:08,055 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:08,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-13 01:06:08,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:08,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-13 01:06:08,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:08,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 50 transitions. [2021-10-13 01:06:08,061 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-13 01:06:08,062 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 36 states and 46 transitions. [2021-10-13 01:06:08,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2021-10-13 01:06:08,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-10-13 01:06:08,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 46 transitions. [2021-10-13 01:06:08,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:06:08,067 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-10-13 01:06:08,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 46 transitions. [2021-10-13 01:06:08,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2021-10-13 01:06:08,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:08,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2021-10-13 01:06:08,071 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-10-13 01:06:08,071 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-10-13 01:06:08,071 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 01:06:08,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 45 transitions. [2021-10-13 01:06:08,072 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-13 01:06:08,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:08,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:08,073 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:08,073 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:06:08,073 INFO L791 eck$LassoCheckResult]: Stem: 791#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 775#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 776#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 773#L71 base2flt_#res := base2flt_~__retres4~0; 774#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 782#L21-1 assume !(0 == base2flt_~m % 4294967296); 783#L27-1 assume base2flt_~m % 4294967296 < 16777216; 799#L39-3 assume !false; 787#L30-1 assume base2flt_~e <= -128;base2flt_~__retres4~0 := 0; 795#L71-1 base2flt_#res := base2flt_~__retres4~0; 765#L72-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 766#L21-2 assume !(0 == base2flt_~m % 4294967296); 779#L27-2 assume !(base2flt_~m % 4294967296 < 16777216); 780#L49-8 [2021-10-13 01:06:08,074 INFO L793 eck$LassoCheckResult]: Loop: 780#L49-8 assume !false; 770#L50-2 assume base2flt_~m % 4294967296 >= 33554432; 772#L51-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 780#L49-8 [2021-10-13 01:06:08,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:08,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1421262134, now seen corresponding path program 1 times [2021-10-13 01:06:08,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:08,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517475716] [2021-10-13 01:06:08,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:08,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:08,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:08,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:06:08,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517475716] [2021-10-13 01:06:08,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517475716] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:06:08,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:06:08,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:06:08,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655737563] [2021-10-13 01:06:08,121 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:06:08,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:08,122 INFO L82 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2021-10-13 01:06:08,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:08,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030302897] [2021-10-13 01:06:08,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:08,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:08,131 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:08,144 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:08,194 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:08,194 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:08,194 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:08,195 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:08,195 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:06:08,195 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:08,195 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:08,195 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:08,195 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2021-10-13 01:06:08,195 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:08,196 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:08,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:08,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:08,308 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:08,308 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:06:08,309 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:08,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:08,312 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:08,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:06:08,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:08,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 01:06:08,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:08,399 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:08,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:08,400 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:08,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:06:08,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:08,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 01:06:08,489 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:06:08,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:08,498 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:08,498 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:08,498 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:08,498 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:08,498 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:06:08,498 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:08,499 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:08,499 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:08,499 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2021-10-13 01:06:08,499 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:08,499 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:08,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:08,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:08,595 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:08,595 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:06:08,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:08,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:08,597 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:08,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:06:08,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:06:08,622 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:06:08,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:06:08,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:06:08,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:06:08,623 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:06:08,624 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:06:08,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 01:06:08,640 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:06:08,643 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:06:08,643 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:06:08,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:08,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:08,646 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:08,655 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:06:08,655 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:06:08,656 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:06:08,656 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-13 01:06:08,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 01:06:08,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:08,699 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:06:08,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:08,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:06:08,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:08,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:06:08,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:08,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:08,874 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 01:06:08,874 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 15 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) [2021-10-13 01:06:08,890 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 15. 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 52 states and 65 transitions. Complement of second has 5 states. [2021-10-13 01:06:08,891 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 [2021-10-13 01:06:08,892 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) [2021-10-13 01:06:08,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2021-10-13 01:06:08,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 13 letters. Loop has 3 letters. [2021-10-13 01:06:08,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:08,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 16 letters. Loop has 3 letters. [2021-10-13 01:06:08,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:08,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 43 transitions. Stem has 13 letters. Loop has 6 letters. [2021-10-13 01:06:08,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:08,894 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 65 transitions. [2021-10-13 01:06:08,896 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-13 01:06:08,909 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 49 states and 61 transitions. [2021-10-13 01:06:08,909 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2021-10-13 01:06:08,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2021-10-13 01:06:08,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 61 transitions. [2021-10-13 01:06:08,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:06:08,910 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 61 transitions. [2021-10-13 01:06:08,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 61 transitions. [2021-10-13 01:06:08,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2021-10-13 01:06:08,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:08,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 37 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:08,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2021-10-13 01:06:08,937 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 49 transitions. [2021-10-13 01:06:08,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:06:08,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:06:08,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:06:08,938 INFO L87 Difference]: Start difference. First operand 38 states and 49 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) [2021-10-13 01:06:08,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:08,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:06:08,972 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2021-10-13 01:06:08,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:06:08,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2021-10-13 01:06:08,974 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-13 01:06:08,975 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 39 states and 49 transitions. [2021-10-13 01:06:08,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-10-13 01:06:08,975 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2021-10-13 01:06:08,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2021-10-13 01:06:08,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:06:08,976 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2021-10-13 01:06:08,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2021-10-13 01:06:08,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2021-10-13 01:06:08,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.263157894736842) internal successors, (48), 37 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:08,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2021-10-13 01:06:08,979 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2021-10-13 01:06:08,979 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2021-10-13 01:06:08,979 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 01:06:08,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 48 transitions. [2021-10-13 01:06:08,980 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-13 01:06:08,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:08,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:08,981 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:08,981 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:06:08,981 INFO L791 eck$LassoCheckResult]: Stem: 1025#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1011#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1012#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1007#L71 base2flt_#res := base2flt_~__retres4~0; 1008#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1016#L21-1 assume !(0 == base2flt_~m % 4294967296); 1017#L27-1 assume base2flt_~m % 4294967296 < 16777216; 1021#L39-3 assume !false; 1022#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1031#L39-2 assume !(base2flt_~m % 4294967296 < 16777216); 1028#L65-1 base2flt_~m := ~bitwiseAnd(base2flt_~m, ~bitwiseComplement(16777216));base2flt_~res~0 := ~bitwiseOr(base2flt_~m, 16777216 * (128 + base2flt_~e));base2flt_~__retres4~0 := base2flt_~res~0; 1029#L71-1 base2flt_#res := base2flt_~__retres4~0; 997#L72-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 998#L21-2 assume !(0 == base2flt_~m % 4294967296); 1013#L27-2 assume base2flt_~m % 4294967296 < 16777216; 1015#L39-5 [2021-10-13 01:06:08,981 INFO L793 eck$LassoCheckResult]: Loop: 1015#L39-5 assume !false; 999#L30-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1001#L39-4 assume base2flt_~m % 4294967296 < 16777216; 1015#L39-5 [2021-10-13 01:06:08,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:08,982 INFO L82 PathProgramCache]: Analyzing trace with hash 793003697, now seen corresponding path program 1 times [2021-10-13 01:06:08,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:08,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552274638] [2021-10-13 01:06:08,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:08,983 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:09,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:09,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:06:09,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552274638] [2021-10-13 01:06:09,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552274638] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:06:09,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:06:09,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 01:06:09,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163150676] [2021-10-13 01:06:09,050 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:06:09,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:09,051 INFO L82 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2021-10-13 01:06:09,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:09,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006713448] [2021-10-13 01:06:09,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:09,051 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:09,056 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:09,061 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:09,092 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:09,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:09,093 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:09,093 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:09,093 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:06:09,093 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:09,093 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:09,093 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:09,094 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2021-10-13 01:06:09,094 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:09,094 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:09,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:09,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:09,174 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:09,174 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:06:09,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:09,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:09,175 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:09,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:06:09,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:09,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 01:06:09,230 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:06:09,230 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:06:09,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:09,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:09,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:09,235 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:09,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 01:06:09,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:06:09,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:09,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-13 01:06:09,273 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:09,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:09,274 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:09,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 01:06:09,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:06:09,277 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:09,321 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:06:09,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-13 01:06:09,324 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:09,324 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:09,324 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:09,325 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:09,325 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:06:09,325 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:09,325 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:09,325 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:09,325 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2021-10-13 01:06:09,325 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:09,325 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:09,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:09,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:09,411 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:09,411 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:06:09,412 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:09,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:09,413 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:09,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 01:06:09,422 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 [2021-10-13 01:06:09,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:06:09,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:06:09,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:06:09,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:06:09,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:06:09,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:06:09,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:06:09,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:06:09,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:09,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:09,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:09,511 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:09,517 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 [2021-10-13 01:06:09,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:06:09,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:06:09,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:06:09,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:06:09,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:06:09,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:06:09,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:06:09,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 01:06:09,548 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:06:09,551 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:06:09,551 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:06:09,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:09,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:09,556 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:09,564 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:06:09,565 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:06:09,565 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:06:09,565 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2021-10-13 01:06:09,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 01:06:09,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:09,610 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:06:09,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:09,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:06:09,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:09,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:06:09,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:09,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:09,787 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 01:06:09,788 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15 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) [2021-10-13 01:06:09,807 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15. 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 56 states and 69 transitions. Complement of second has 5 states. [2021-10-13 01:06:09,811 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 [2021-10-13 01:06:09,811 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) [2021-10-13 01:06:09,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2021-10-13 01:06:09,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-13 01:06:09,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:09,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 18 letters. Loop has 3 letters. [2021-10-13 01:06:09,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:09,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 44 transitions. Stem has 15 letters. Loop has 6 letters. [2021-10-13 01:06:09,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:09,813 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 69 transitions. [2021-10-13 01:06:09,814 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-13 01:06:09,815 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 53 states and 65 transitions. [2021-10-13 01:06:09,816 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2021-10-13 01:06:09,816 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2021-10-13 01:06:09,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 65 transitions. [2021-10-13 01:06:09,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:06:09,816 INFO L681 BuchiCegarLoop]: Abstraction has 53 states and 65 transitions. [2021-10-13 01:06:09,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 65 transitions. [2021-10-13 01:06:09,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 41. [2021-10-13 01:06:09,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.2682926829268293) internal successors, (52), 40 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:09,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2021-10-13 01:06:09,820 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 52 transitions. [2021-10-13 01:06:09,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:06:09,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 01:06:09,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 01:06:09,821 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:09,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:06:09,903 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2021-10-13 01:06:09,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 01:06:09,905 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 61 transitions. [2021-10-13 01:06:09,906 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 01:06:09,908 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 61 transitions. [2021-10-13 01:06:09,908 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2021-10-13 01:06:09,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-13 01:06:09,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 61 transitions. [2021-10-13 01:06:09,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:06:09,910 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 61 transitions. [2021-10-13 01:06:09,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 61 transitions. [2021-10-13 01:06:09,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2021-10-13 01:06:09,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 42 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:09,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2021-10-13 01:06:09,913 INFO L704 BuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2021-10-13 01:06:09,913 INFO L587 BuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2021-10-13 01:06:09,913 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 01:06:09,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 55 transitions. [2021-10-13 01:06:09,914 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 01:06:09,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:09,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:09,915 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:09,915 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:06:09,916 INFO L791 eck$LassoCheckResult]: Stem: 1288#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1269#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1270#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1267#L71 base2flt_#res := base2flt_~__retres4~0; 1268#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1278#L21-1 assume !(0 == base2flt_~m % 4294967296); 1279#L27-1 assume base2flt_~m % 4294967296 < 16777216; 1297#L39-3 assume !false; 1293#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1294#L39-2 assume base2flt_~m % 4294967296 < 16777216; 1283#L39-3 assume !false; 1284#L30-1 assume base2flt_~e <= -128;base2flt_~__retres4~0 := 0; 1292#L71-1 base2flt_#res := base2flt_~__retres4~0; 1256#L72-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1257#L21-2 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1259#L71-2 base2flt_#res := base2flt_~__retres4~0; 1271#L72-2 main_#t~ret13 := base2flt_#res;main_~a~0 := main_#t~ret13;havoc main_#t~ret13;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1272#L21-3 assume !(0 == base2flt_~m % 4294967296); 1287#L27-3 assume !(base2flt_~m % 4294967296 < 16777216); 1290#L49-11 [2021-10-13 01:06:09,916 INFO L793 eck$LassoCheckResult]: Loop: 1290#L49-11 assume !false; 1295#L50-3 assume base2flt_~m % 4294967296 >= 33554432; 1289#L51-3 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 1290#L49-11 [2021-10-13 01:06:09,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:09,917 INFO L82 PathProgramCache]: Analyzing trace with hash -399436914, now seen corresponding path program 1 times [2021-10-13 01:06:09,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:09,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322861299] [2021-10-13 01:06:09,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:09,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:09,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:09,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:06:09,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322861299] [2021-10-13 01:06:09,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322861299] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:06:09,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209446679] [2021-10-13 01:06:09,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:09,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:06:09,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:09,965 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:06:09,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-13 01:06:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:10,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:06:10,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:10,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:10,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209446679] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:06:10,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:06:10,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-10-13 01:06:10,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119454368] [2021-10-13 01:06:10,169 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:06:10,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:10,170 INFO L82 PathProgramCache]: Analyzing trace with hash 262289, now seen corresponding path program 1 times [2021-10-13 01:06:10,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:10,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728864026] [2021-10-13 01:06:10,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:10,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:10,178 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:10,185 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:10,223 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:10,224 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:10,224 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:10,224 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:10,224 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:06:10,224 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:10,225 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:10,225 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:10,225 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2021-10-13 01:06:10,225 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:10,225 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:10,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:10,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:10,356 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:10,356 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:06:10,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:10,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:10,361 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:10,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:06:10,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:10,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 01:06:10,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:10,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:10,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:10,439 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:10,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:06:10,443 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:10,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 01:06:10,521 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:06:10,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:10,525 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:10,526 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:10,526 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:10,526 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:10,526 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:06:10,526 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:10,526 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:10,526 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:10,526 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2021-10-13 01:06:10,526 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:10,526 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:10,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:10,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:10,616 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:10,617 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:06:10,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:10,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:10,618 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:10,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 01:06:10,623 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 [2021-10-13 01:06:10,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:06:10,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:06:10,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:06:10,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:06:10,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:06:10,637 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:06:10,637 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:06:10,647 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:06:10,650 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:06:10,650 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:06:10,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:10,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:10,654 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:10,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 01:06:10,656 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:06:10,656 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:06:10,656 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:06:10,656 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-13 01:06:10,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:10,682 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:06:10,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:10,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:06:10,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:10,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:06:10,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:10,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:10,851 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 01:06:10,851 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 55 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) [2021-10-13 01:06:10,859 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 55 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) Result 46 states and 59 transitions. Complement of second has 4 states. [2021-10-13 01:06:10,859 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 [2021-10-13 01:06:10,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) [2021-10-13 01:06:10,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 41 transitions. [2021-10-13 01:06:10,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 19 letters. Loop has 3 letters. [2021-10-13 01:06:10,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:10,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 22 letters. Loop has 3 letters. [2021-10-13 01:06:10,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:10,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 41 transitions. Stem has 19 letters. Loop has 6 letters. [2021-10-13 01:06:10,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:10,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 59 transitions. [2021-10-13 01:06:10,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:06:10,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 40 states and 51 transitions. [2021-10-13 01:06:10,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-10-13 01:06:10,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-13 01:06:10,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 51 transitions. [2021-10-13 01:06:10,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:06:10,865 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-10-13 01:06:10,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 51 transitions. [2021-10-13 01:06:10,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-13 01:06:10,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.275) internal successors, (51), 39 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2021-10-13 01:06:10,885 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-10-13 01:06:10,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:06:10,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:06:10,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:06:10,888 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 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) [2021-10-13 01:06:10,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:06:10,926 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2021-10-13 01:06:10,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 01:06:10,927 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2021-10-13 01:06:10,928 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:06:10,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 44 states and 54 transitions. [2021-10-13 01:06:10,929 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2021-10-13 01:06:10,929 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2021-10-13 01:06:10,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 54 transitions. [2021-10-13 01:06:10,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:06:10,930 INFO L681 BuchiCegarLoop]: Abstraction has 44 states and 54 transitions. [2021-10-13 01:06:10,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 54 transitions. [2021-10-13 01:06:10,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2021-10-13 01:06:10,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.25) internal successors, (50), 39 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:10,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2021-10-13 01:06:10,933 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-10-13 01:06:10,933 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2021-10-13 01:06:10,933 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 01:06:10,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2021-10-13 01:06:10,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:06:10,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:10,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:10,935 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:10,936 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:06:10,936 INFO L791 eck$LassoCheckResult]: Stem: 1603#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(22);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1586#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1587#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1582#L71 base2flt_#res := base2flt_~__retres4~0; 1583#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := 1, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1595#L21-1 assume !(0 == base2flt_~m % 4294967296); 1596#L27-1 assume base2flt_~m % 4294967296 < 16777216; 1598#L39-3 assume !false; 1599#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1607#L39-2 assume base2flt_~m % 4294967296 < 16777216; 1600#L39-3 assume !false; 1601#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1610#L39-2 assume !(base2flt_~m % 4294967296 < 16777216); 1604#L65-1 base2flt_~m := ~bitwiseAnd(base2flt_~m, ~bitwiseComplement(16777216));base2flt_~res~0 := ~bitwiseOr(base2flt_~m, 16777216 * (128 + base2flt_~e));base2flt_~__retres4~0 := base2flt_~res~0; 1605#L71-1 base2flt_#res := base2flt_~__retres4~0; 1571#L72-1 main_#t~ret12 := base2flt_#res;main_~one~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1572#L21-2 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 1574#L71-2 base2flt_#res := base2flt_~__retres4~0; 1584#L72-2 main_#t~ret13 := base2flt_#res;main_~a~0 := main_#t~ret13;havoc main_#t~ret13;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 1585#L21-3 assume !(0 == base2flt_~m % 4294967296); 1602#L27-3 assume base2flt_~m % 4294967296 < 16777216; 1608#L39-7 [2021-10-13 01:06:10,936 INFO L793 eck$LassoCheckResult]: Loop: 1608#L39-7 assume !false; 1593#L30-3 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 1594#L39-6 assume base2flt_~m % 4294967296 < 16777216; 1608#L39-7 [2021-10-13 01:06:10,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:10,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1485728147, now seen corresponding path program 1 times [2021-10-13 01:06:10,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:10,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643799499] [2021-10-13 01:06:10,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:10,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:11,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:11,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:06:11,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643799499] [2021-10-13 01:06:11,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643799499] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:06:11,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865927947] [2021-10-13 01:06:11,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:11,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:06:11,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:11,023 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:06:11,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-13 01:06:11,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:11,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:11,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 01:06:11,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:11,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865927947] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:06:11,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:06:11,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-13 01:06:11,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748473743] [2021-10-13 01:06:11,363 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:06:11,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:11,364 INFO L82 PathProgramCache]: Analyzing trace with hash 236530, now seen corresponding path program 1 times [2021-10-13 01:06:11,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:11,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776498955] [2021-10-13 01:06:11,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:11,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:11,386 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:11,390 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:11,420 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:11,420 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:11,421 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:11,421 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:11,421 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:06:11,421 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:11,421 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:11,421 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:11,422 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration7_Loop [2021-10-13 01:06:11,422 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:11,422 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:11,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:11,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:11,499 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:11,499 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:06:11,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:11,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:11,507 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:11,514 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:06:11,514 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:11,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 01:06:11,567 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:06:11,567 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:06:11,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:11,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:11,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:11,571 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:11,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 01:06:11,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:06:11,573 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:11,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:11,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:11,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:11,608 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:11,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:06:11,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:06:11,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 01:06:11,652 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:06:11,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-13 01:06:11,655 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:06:11,655 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:06:11,656 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:06:11,656 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:06:11,656 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:06:11,656 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:11,656 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:06:11,656 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:06:11,656 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration7_Loop [2021-10-13 01:06:11,656 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:06:11,656 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:06:11,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:11,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:06:11,741 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:06:11,741 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:06:11,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:11,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:11,743 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:11,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 01:06:11,752 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 [2021-10-13 01:06:11,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:06:11,762 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:06:11,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:06:11,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:06:11,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:06:11,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:06:11,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:06:11,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:06:11,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:11,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:11,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:11,803 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:11,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 01:06:11,808 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 [2021-10-13 01:06:11,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:06:11,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:06:11,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:06:11,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:06:11,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:06:11,819 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:06:11,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:06:11,821 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:06:11,824 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:06:11,824 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 01:06:11,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:11,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:11,825 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:11,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-13 01:06:11,827 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:06:11,827 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:06:11,828 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:06:11,828 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2021-10-13 01:06:11,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:11,856 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:06:11,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:11,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:06:11,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:12,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:06:12,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:06:12,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:12,047 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 01:06:12,047 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14 Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:12,054 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 44 states and 54 transitions. Complement of second has 4 states. [2021-10-13 01:06:12,054 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 [2021-10-13 01:06:12,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:12,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2021-10-13 01:06:12,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 21 letters. Loop has 3 letters. [2021-10-13 01:06:12,055 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:12,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 24 letters. Loop has 3 letters. [2021-10-13 01:06:12,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:12,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 21 letters. Loop has 6 letters. [2021-10-13 01:06:12,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:06:12,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2021-10-13 01:06:12,058 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:06:12,058 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 0 states and 0 transitions. [2021-10-13 01:06:12,058 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:06:12,058 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:06:12,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:06:12,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:06:12,059 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:06:12,059 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:06:12,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:06:12,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 01:06:12,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:06:12,060 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:12,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:06:12,060 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-13 01:06:12,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 01:06:12,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-13 01:06:12,061 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:06:12,061 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 01:06:12,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:06:12,062 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:06:12,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:06:12,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:06:12,062 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:06:12,062 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:06:12,062 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:06:12,063 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 01:06:12,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:06:12,063 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:06:12,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 01:06:12,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:06:12 BoogieIcfgContainer [2021-10-13 01:06:12,070 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:06:12,071 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:06:12,071 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:06:12,072 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:06:12,072 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:06:03" (3/4) ... [2021-10-13 01:06:12,076 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:06:12,076 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:06:12,078 INFO L168 Benchmark]: Toolchain (without parser) took 9705.03 ms. Allocated memory was 121.6 MB in the beginning and 169.9 MB in the end (delta: 48.2 MB). Free memory was 83.4 MB in the beginning and 96.5 MB in the end (delta: -13.0 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:12,078 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 121.6 MB. Free memory is still 100.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:06:12,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.20 ms. Allocated memory is still 121.6 MB. Free memory was 83.2 MB in the beginning and 94.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:12,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.28 ms. Allocated memory is still 121.6 MB. Free memory was 94.3 MB in the beginning and 92.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:12,080 INFO L168 Benchmark]: Boogie Preprocessor took 81.84 ms. Allocated memory is still 121.6 MB. Free memory was 92.2 MB in the beginning and 90.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:12,080 INFO L168 Benchmark]: RCFGBuilder took 817.07 ms. Allocated memory is still 121.6 MB. Free memory was 90.5 MB in the beginning and 74.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:12,081 INFO L168 Benchmark]: BuchiAutomizer took 8272.30 ms. Allocated memory was 121.6 MB in the beginning and 169.9 MB in the end (delta: 48.2 MB). Free memory was 74.3 MB in the beginning and 96.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:06:12,082 INFO L168 Benchmark]: Witness Printer took 4.83 ms. Allocated memory is still 169.9 MB. Free memory is still 96.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:06:12,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 121.6 MB. Free memory is still 100.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 429.20 ms. Allocated memory is still 121.6 MB. Free memory was 83.2 MB in the beginning and 94.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.28 ms. Allocated memory is still 121.6 MB. Free memory was 94.3 MB in the beginning and 92.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.84 ms. Allocated memory is still 121.6 MB. Free memory was 92.2 MB in the beginning and 90.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 817.07 ms. Allocated memory is still 121.6 MB. Free memory was 90.5 MB in the beginning and 74.8 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 8272.30 ms. Allocated memory was 121.6 MB in the beginning and 169.9 MB in the end (delta: 48.2 MB). Free memory was 74.3 MB in the beginning and 96.5 MB in the end (delta: -22.2 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.83 ms. Allocated memory is still 169.9 MB. Free memory is still 96.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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 253 + -2 * e and consists of 4 locations. One deterministic module has affine ranking function 253 + -2 * e 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 253 + -2 * e 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 253 + -2 * e 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 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.1s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 6.1s. Construction of modules took 0.2s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 9. Automata minimization 106.7ms AutomataMinimizationTime, 11 MinimizatonAttempts, 72 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 43 states and ocurred in iteration 5. Nontrivial modules had stage [7, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 528 SDtfs, 344 SDslu, 161 SDs, 0 SdLazy, 162 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 245.1ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div575 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 65ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 01:06:12,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:12,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:12,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-13 01:06:12,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33739d4-b91f-43a9-be8c-4be432f1f7d1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...