./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ --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 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:57:54,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:57:54,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:57:54,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:57:54,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:57:54,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:57:54,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:57:54,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:57:54,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:57:54,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:57:54,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:57:54,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:57:54,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:57:54,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:57:54,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:57:54,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:57:54,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:57:54,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:57:54,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:57:54,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:57:54,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:57:54,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:57:54,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:57:54,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:57:54,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:57:54,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:57:54,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:57:54,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:57:54,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:57:54,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:57:54,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:57:54,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:57:54,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:57:54,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:57:54,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:57:54,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:57:54,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:57:54,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:57:54,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:57:54,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:57:54,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:57:54,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-10-17 10:57:54,965 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:57:54,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:57:54,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:57:54,967 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:57:54,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:57:54,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:57:54,969 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:57:54,970 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:57:54,970 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:57:54,970 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:57:54,972 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:57:54,972 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:57:54,972 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:57:54,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:57:54,973 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:57:54,973 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:57:54,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:57:54,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:57:54,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:57:54,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:57:54,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:57:54,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:57:54,975 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:57:54,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:57:54,977 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:57:54,978 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:57:54,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:57:54,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:57:54,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:57:54,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:57:54,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:57:54,981 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:57:54,981 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_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 [2022-10-17 10:57:55,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:57:55,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:57:55,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:57:55,389 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:57:55,389 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:57:55,391 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2022-10-17 10:57:55,473 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/data/81f7e18e2/259105b5aaa94ef4b1901b9cb9a5ce94/FLAGca7f0d48b [2022-10-17 10:57:56,006 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:57:56,006 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2022-10-17 10:57:56,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/data/81f7e18e2/259105b5aaa94ef4b1901b9cb9a5ce94/FLAGca7f0d48b [2022-10-17 10:57:56,347 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/data/81f7e18e2/259105b5aaa94ef4b1901b9cb9a5ce94 [2022-10-17 10:57:56,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:57:56,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:57:56,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:57:56,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:57:56,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:57:56,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:57:56" (1/1) ... [2022-10-17 10:57:56,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c28097f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56, skipping insertion in model container [2022-10-17 10:57:56,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:57:56" (1/1) ... [2022-10-17 10:57:56,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:57:56,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:57:56,635 WARN L230 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_78dc52b3-eb1c-497e-b744-f77650b2ff59/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2022-10-17 10:57:56,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:57:56,709 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:57:56,723 WARN L230 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_78dc52b3-eb1c-497e-b744-f77650b2ff59/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2022-10-17 10:57:56,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:57:56,778 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:57:56,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56 WrapperNode [2022-10-17 10:57:56,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:57:56,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:57:56,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:57:56,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:57:56,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56" (1/1) ... [2022-10-17 10:57:56,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56" (1/1) ... [2022-10-17 10:57:56,869 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 10, calls inlined = 8, statements flattened = 430 [2022-10-17 10:57:56,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:57:56,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:57:56,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:57:56,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:57:56,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56" (1/1) ... [2022-10-17 10:57:56,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56" (1/1) ... [2022-10-17 10:57:56,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56" (1/1) ... [2022-10-17 10:57:56,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56" (1/1) ... [2022-10-17 10:57:56,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56" (1/1) ... [2022-10-17 10:57:56,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56" (1/1) ... [2022-10-17 10:57:56,945 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56" (1/1) ... [2022-10-17 10:57:56,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56" (1/1) ... [2022-10-17 10:57:56,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:57:56,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:57:56,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:57:56,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:57:56,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56" (1/1) ... [2022-10-17 10:57:56,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:57:56,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:57:57,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:57:57,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:57:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:57:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:57:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:57:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:57:57,144 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:57:57,147 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:57:58,067 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:57:58,085 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:57:58,085 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-10-17 10:57:58,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:57:58 BoogieIcfgContainer [2022-10-17 10:57:58,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:57:58,091 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:57:58,091 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:57:58,096 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:57:58,097 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:57:58,098 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:57:56" (1/3) ... [2022-10-17 10:57:58,099 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2311d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:57:58, skipping insertion in model container [2022-10-17 10:57:58,099 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:57:58,099 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:57:56" (2/3) ... [2022-10-17 10:57:58,100 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2311d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:57:58, skipping insertion in model container [2022-10-17 10:57:58,100 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:57:58,100 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:57:58" (3/3) ... [2022-10-17 10:57:58,105 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2022-10-17 10:57:58,195 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:57:58,195 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:57:58,196 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:57:58,196 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:57:58,196 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:57:58,196 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:57:58,196 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:57:58,197 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:57:58,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 131 states, 130 states have (on average 1.8384615384615384) internal successors, (239), 130 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:57:58,261 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-10-17 10:57:58,261 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:57:58,261 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:57:58,268 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 10:57:58,268 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:57:58,269 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:57:58,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 131 states, 130 states have (on average 1.8384615384615384) internal successors, (239), 130 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:57:58,296 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-10-17 10:57:58,298 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:57:58,299 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:57:58,299 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 10:57:58,299 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:57:58,310 INFO L748 eck$LassoCheckResult]: Stem: 114#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 48#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 87#L29true assume !(0 == base2flt_~m#1 % 4294967296); 111#L35true assume !(base2flt_~m#1 % 4294967296 < 16777216); 62#L57-2true [2022-10-17 10:57:58,310 INFO L750 eck$LassoCheckResult]: Loop: 62#L57-2true assume !false; 46#L58true assume base2flt_~m#1 % 4294967296 >= 33554432; 99#L59true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 62#L57-2true [2022-10-17 10:57:58,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:58,319 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2022-10-17 10:57:58,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:58,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986160433] [2022-10-17 10:57:58,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:58,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:58,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:58,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:57:58,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986160433] [2022-10-17 10:57:58,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986160433] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:57:58,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:57:58,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:57:58,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833472854] [2022-10-17 10:57:58,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:57:58,664 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:57:58,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:58,666 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2022-10-17 10:57:58,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:57:58,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716959755] [2022-10-17 10:57:58,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:57:58,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:57:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:57:58,688 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:57:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:57:58,722 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:57:58,776 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:57:58,777 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:57:58,777 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:57:58,777 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:57:58,777 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:57:58,778 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:57:58,778 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:57:58,778 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:57:58,778 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration1_Loop [2022-10-17 10:57:58,778 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:57:58,779 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:57:58,799 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:57:58,816 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:57:58,967 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:57:58,967 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:57:58,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:57:58,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:57:58,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:57:58,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:57:58,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:57:59,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:57:59,030 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:57:59,031 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-10-17 10:57:59,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:57:59,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:57:59,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:57:59,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:57:59,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:57:59,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:57:59,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:57:59,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:57:59,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:57:59,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:57:59,089 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:57:59,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:57:59,091 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:57:59,091 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:57:59,138 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:57:59,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:57:59,147 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:57:59,148 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:57:59,148 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:57:59,148 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:57:59,148 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:57:59,148 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:57:59,148 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:57:59,148 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:57:59,148 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration1_Loop [2022-10-17 10:57:59,150 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:57:59,151 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:57:59,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:57:59,163 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:57:59,290 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:57:59,295 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:57:59,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:57:59,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:57:59,298 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:57:59,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:57:59,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:57:59,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:57:59,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:57:59,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:57:59,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:57:59,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:57:59,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:57:59,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:57:59,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:57:59,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:57:59,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:57:59,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:57:59,387 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:57:59,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:57:59,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:57:59,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:57:59,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:57:59,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:57:59,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:57:59,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:57:59,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:57:59,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:57:59,413 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:57:59,433 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:57:59,433 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:57:59,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:57:59,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:57:59,436 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:57:59,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:57:59,473 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:57:59,474 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:57:59,474 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:57:59,475 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-10-17 10:57:59,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:57:59,497 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:57:59,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:57:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:59,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:57:59,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:57:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:57:59,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:57:59,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:57:59,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:57:59,618 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-10-17 10:57:59,621 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 131 states, 130 states have (on average 1.8384615384615384) internal successors, (239), 130 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:57:59,915 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 131 states, 130 states have (on average 1.8384615384615384) internal successors, (239), 130 states have internal predecessors, (239), 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 396 states and 717 transitions. Complement of second has 6 states. [2022-10-17 10:57:59,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:57:59,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:57:59,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 476 transitions. [2022-10-17 10:57:59,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 476 transitions. Stem has 4 letters. Loop has 3 letters. [2022-10-17 10:57:59,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:57:59,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 476 transitions. Stem has 7 letters. Loop has 3 letters. [2022-10-17 10:57:59,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:57:59,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 476 transitions. Stem has 4 letters. Loop has 6 letters. [2022-10-17 10:57:59,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:57:59,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 396 states and 717 transitions. [2022-10-17 10:57:59,964 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2022-10-17 10:57:59,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 396 states to 127 states and 216 transitions. [2022-10-17 10:57:59,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 123 [2022-10-17 10:57:59,973 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 124 [2022-10-17 10:57:59,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 127 states and 216 transitions. [2022-10-17 10:57:59,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:57:59,976 INFO L218 hiAutomatonCegarLoop]: Abstraction has 127 states and 216 transitions. [2022-10-17 10:58:00,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states and 216 transitions. [2022-10-17 10:58:00,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 108. [2022-10-17 10:58:00,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 108 states have (on average 1.7407407407407407) internal successors, (188), 107 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:00,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 188 transitions. [2022-10-17 10:58:00,050 INFO L240 hiAutomatonCegarLoop]: Abstraction has 108 states and 188 transitions. [2022-10-17 10:58:00,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:00,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:58:00,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:58:00,056 INFO L87 Difference]: Start difference. First operand 108 states and 188 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:00,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:58:00,235 INFO L93 Difference]: Finished difference Result 65 states and 100 transitions. [2022-10-17 10:58:00,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 100 transitions. [2022-10-17 10:58:00,237 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-10-17 10:58:00,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 65 states and 100 transitions. [2022-10-17 10:58:00,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2022-10-17 10:58:00,244 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2022-10-17 10:58:00,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 100 transitions. [2022-10-17 10:58:00,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:58:00,249 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 100 transitions. [2022-10-17 10:58:00,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 100 transitions. [2022-10-17 10:58:00,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2022-10-17 10:58:00,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 52 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:00,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 82 transitions. [2022-10-17 10:58:00,263 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 82 transitions. [2022-10-17 10:58:00,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:58:00,264 INFO L428 stractBuchiCegarLoop]: Abstraction has 53 states and 82 transitions. [2022-10-17 10:58:00,264 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:58:00,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 82 transitions. [2022-10-17 10:58:00,269 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-10-17 10:58:00,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:00,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:00,270 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:00,270 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:58:00,270 INFO L748 eck$LassoCheckResult]: Stem: 794#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 788#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 773#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 774#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 752#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 753#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 789#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 777#L47-3 [2022-10-17 10:58:00,270 INFO L750 eck$LassoCheckResult]: Loop: 777#L47-3 assume !false; 769#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 770#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 777#L47-3 [2022-10-17 10:58:00,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:00,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1807920711, now seen corresponding path program 1 times [2022-10-17 10:58:00,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:00,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949425012] [2022-10-17 10:58:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:00,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:00,300 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:00,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:00,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:00,328 INFO L85 PathProgramCache]: Analyzing trace with hash 153118, now seen corresponding path program 1 times [2022-10-17 10:58:00,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:00,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493172572] [2022-10-17 10:58:00,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:00,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:00,350 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:00,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:00,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:00,356 INFO L85 PathProgramCache]: Analyzing trace with hash 876132888, now seen corresponding path program 1 times [2022-10-17 10:58:00,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:00,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802674970] [2022-10-17 10:58:00,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:00,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:00,383 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:00,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:00,482 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:00,482 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:00,482 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:00,482 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:00,482 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:58:00,482 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:00,482 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:00,482 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:00,482 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration2_Loop [2022-10-17 10:58:00,483 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:00,483 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:00,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-10-17 10:58:00,488 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:00,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:00,575 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:00,575 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:58:00,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:00,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:00,576 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:00,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:00,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:00,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:58:00,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:00,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:00,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:00,653 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:00,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:58:00,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:58:00,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:00,717 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:58:00,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:00,725 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:00,725 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:00,725 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:00,726 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:00,726 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:58:00,726 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:00,726 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:00,726 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:00,726 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration2_Loop [2022-10-17 10:58:00,726 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:00,726 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:00,727 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:00,735 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:00,813 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:00,813 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:58:00,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:00,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:00,815 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:00,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:58:00,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:58:00,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:00,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:58:00,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:00,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:00,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:00,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:58:00,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:58:00,852 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:58:00,855 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:58:00,855 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:58:00,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:00,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:00,857 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:00,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:58:00,861 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:58:00,862 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:58:00,862 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:58:00,862 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-10-17 10:58:00,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:00,897 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:58:00,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:00,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:00,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:00,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:00,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:01,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:01,019 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:58:01,019 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 82 transitions. cyclomatic complexity: 35 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:01,063 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 82 transitions. cyclomatic complexity: 35. 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 109 states and 171 transitions. Complement of second has 5 states. [2022-10-17 10:58:01,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:01,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:01,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2022-10-17 10:58:01,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 99 transitions. Stem has 7 letters. Loop has 3 letters. [2022-10-17 10:58:01,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:01,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 99 transitions. Stem has 10 letters. Loop has 3 letters. [2022-10-17 10:58:01,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:01,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 99 transitions. Stem has 7 letters. Loop has 6 letters. [2022-10-17 10:58:01,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:01,067 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 171 transitions. [2022-10-17 10:58:01,069 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2022-10-17 10:58:01,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 97 states and 150 transitions. [2022-10-17 10:58:01,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 91 [2022-10-17 10:58:01,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2022-10-17 10:58:01,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 150 transitions. [2022-10-17 10:58:01,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:01,072 INFO L218 hiAutomatonCegarLoop]: Abstraction has 97 states and 150 transitions. [2022-10-17 10:58:01,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 150 transitions. [2022-10-17 10:58:01,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 56. [2022-10-17 10:58:01,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.5357142857142858) internal successors, (86), 55 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:01,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 86 transitions. [2022-10-17 10:58:01,077 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 86 transitions. [2022-10-17 10:58:01,077 INFO L428 stractBuchiCegarLoop]: Abstraction has 56 states and 86 transitions. [2022-10-17 10:58:01,077 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:58:01,077 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 86 transitions. [2022-10-17 10:58:01,078 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-10-17 10:58:01,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:01,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:01,079 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:01,079 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:58:01,079 INFO L748 eck$LassoCheckResult]: Stem: 1009#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 1002#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 986#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 987#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 964#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 965#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1003#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 970#L57-5 [2022-10-17 10:58:01,079 INFO L750 eck$LassoCheckResult]: Loop: 970#L57-5 assume !false; 966#L58-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 967#L59-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 970#L57-5 [2022-10-17 10:58:01,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:01,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1807920737, now seen corresponding path program 1 times [2022-10-17 10:58:01,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:01,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24669325] [2022-10-17 10:58:01,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:01,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:01,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:01,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:01,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24669325] [2022-10-17 10:58:01,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24669325] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:58:01,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:58:01,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:58:01,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338720559] [2022-10-17 10:58:01,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:58:01,225 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:58:01,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:01,226 INFO L85 PathProgramCache]: Analyzing trace with hash 178877, now seen corresponding path program 1 times [2022-10-17 10:58:01,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:01,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249634377] [2022-10-17 10:58:01,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:01,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:01,244 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:01,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:01,301 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:01,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:01,301 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:01,301 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:01,301 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:58:01,301 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:01,301 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:01,301 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:01,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration3_Loop [2022-10-17 10:58:01,302 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:01,302 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:01,304 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:01,311 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:01,427 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:01,427 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:58:01,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:01,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:01,429 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:01,443 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:01,443 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:01,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:58:01,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:01,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:01,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:01,510 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:01,518 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:58:01,518 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:01,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:58:01,589 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:58:01,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:01,596 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:01,596 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:01,596 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:01,597 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:01,597 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:58:01,597 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:01,597 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:01,597 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:01,597 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration3_Loop [2022-10-17 10:58:01,597 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:01,597 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:01,598 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:01,605 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:01,720 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:01,720 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:58:01,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:01,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:01,741 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:01,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:01,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:58:01,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:58:01,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:01,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:58:01,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:01,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:01,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:01,775 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:58:01,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:58:01,789 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:58:01,792 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:58:01,792 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:58:01,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:01,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:01,794 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:01,796 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:58:01,796 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:58:01,797 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:58:01,797 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-10-17 10:58:01,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:58:01,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-10-17 10:58:01,839 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:58:01,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:01,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:01,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:01,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:01,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:01,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:01,907 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-10-17 10:58:01,908 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 86 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:01,941 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 86 transitions. cyclomatic complexity: 36. 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 111 states and 174 transitions. Complement of second has 5 states. [2022-10-17 10:58:01,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:01,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:01,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2022-10-17 10:58:01,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 98 transitions. Stem has 7 letters. Loop has 3 letters. [2022-10-17 10:58:01,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:01,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 98 transitions. Stem has 10 letters. Loop has 3 letters. [2022-10-17 10:58:01,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:01,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 98 transitions. Stem has 7 letters. Loop has 6 letters. [2022-10-17 10:58:01,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:01,945 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 174 transitions. [2022-10-17 10:58:01,947 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-10-17 10:58:01,949 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 99 states and 153 transitions. [2022-10-17 10:58:01,949 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2022-10-17 10:58:01,949 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2022-10-17 10:58:01,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 153 transitions. [2022-10-17 10:58:01,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:01,950 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 153 transitions. [2022-10-17 10:58:01,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 153 transitions. [2022-10-17 10:58:01,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 59. [2022-10-17 10:58:01,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 58 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:01,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 90 transitions. [2022-10-17 10:58:01,955 INFO L240 hiAutomatonCegarLoop]: Abstraction has 59 states and 90 transitions. [2022-10-17 10:58:01,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:01,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:58:01,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:58:01,957 INFO L87 Difference]: Start difference. First operand 59 states and 90 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:02,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:58:02,045 INFO L93 Difference]: Finished difference Result 61 states and 87 transitions. [2022-10-17 10:58:02,045 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 87 transitions. [2022-10-17 10:58:02,046 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-10-17 10:58:02,047 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 61 states and 87 transitions. [2022-10-17 10:58:02,047 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-10-17 10:58:02,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-10-17 10:58:02,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 87 transitions. [2022-10-17 10:58:02,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:02,048 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 87 transitions. [2022-10-17 10:58:02,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 87 transitions. [2022-10-17 10:58:02,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2022-10-17 10:58:02,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.490566037735849) internal successors, (79), 52 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:02,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 79 transitions. [2022-10-17 10:58:02,052 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 79 transitions. [2022-10-17 10:58:02,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:58:02,054 INFO L428 stractBuchiCegarLoop]: Abstraction has 53 states and 79 transitions. [2022-10-17 10:58:02,054 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:58:02,054 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 79 transitions. [2022-10-17 10:58:02,055 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-10-17 10:58:02,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:02,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:02,056 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:02,056 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:58:02,057 INFO L748 eck$LassoCheckResult]: Stem: 1333#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 1304#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1305#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1337#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1309#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1310#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1312#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1313#L47-3 assume !false; 1334#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1311#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1323#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret23#1;havoc main_#t~ret23#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1330#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1327#L35-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1328#L57-8 [2022-10-17 10:58:02,057 INFO L750 eck$LassoCheckResult]: Loop: 1328#L57-8 assume !false; 1320#L58-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 1321#L59-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 1328#L57-8 [2022-10-17 10:58:02,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:02,058 INFO L85 PathProgramCache]: Analyzing trace with hash 359266186, now seen corresponding path program 1 times [2022-10-17 10:58:02,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:02,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730093784] [2022-10-17 10:58:02,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:02,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:02,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:02,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:02,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730093784] [2022-10-17 10:58:02,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730093784] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:58:02,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:58:02,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:58:02,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897231310] [2022-10-17 10:58:02,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:58:02,117 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:58:02,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:02,117 INFO L85 PathProgramCache]: Analyzing trace with hash 283142, now seen corresponding path program 1 times [2022-10-17 10:58:02,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:02,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573558938] [2022-10-17 10:58:02,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:02,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:02,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:02,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:02,194 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:02,194 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:02,194 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:02,194 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:02,195 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:58:02,195 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:02,195 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:02,195 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:02,195 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration4_Loop [2022-10-17 10:58:02,195 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:02,195 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:02,196 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:02,203 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:02,287 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:02,287 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:58:02,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:02,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:02,289 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:02,301 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:02,301 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:02,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:58:02,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:02,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:02,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:02,359 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:02,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 10:58:02,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:58:02,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:02,421 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:58:02,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:02,426 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:02,426 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:02,426 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:02,427 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:02,427 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:58:02,427 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:02,427 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:02,427 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:02,427 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration4_Loop [2022-10-17 10:58:02,427 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:02,427 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:02,428 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:02,437 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:02,520 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:02,521 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:58:02,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:02,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:02,522 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:02,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 10:58:02,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:58:02,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:02,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:58:02,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:02,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:02,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:02,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:58:02,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:58:02,556 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:58:02,559 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:58:02,559 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:58:02,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:02,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:02,562 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:02,567 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:58:02,567 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:58:02,567 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:58:02,567 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-10-17 10:58:02,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-10-17 10:58:02,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:02,605 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:58:02,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:02,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:02,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:02,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:02,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:02,679 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-10-17 10:58:02,679 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 79 transitions. cyclomatic complexity: 31 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:02,705 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 79 transitions. cyclomatic complexity: 31. 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 88 states and 133 transitions. Complement of second has 5 states. [2022-10-17 10:58:02,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:02,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:02,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2022-10-17 10:58:02,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 91 transitions. Stem has 13 letters. Loop has 3 letters. [2022-10-17 10:58:02,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:02,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 91 transitions. Stem has 16 letters. Loop has 3 letters. [2022-10-17 10:58:02,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:02,711 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 91 transitions. Stem has 13 letters. Loop has 6 letters. [2022-10-17 10:58:02,711 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:02,712 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 133 transitions. [2022-10-17 10:58:02,713 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-10-17 10:58:02,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 76 states and 112 transitions. [2022-10-17 10:58:02,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2022-10-17 10:58:02,714 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2022-10-17 10:58:02,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 112 transitions. [2022-10-17 10:58:02,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:02,715 INFO L218 hiAutomatonCegarLoop]: Abstraction has 76 states and 112 transitions. [2022-10-17 10:58:02,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 112 transitions. [2022-10-17 10:58:02,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 56. [2022-10-17 10:58:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 55 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:02,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 83 transitions. [2022-10-17 10:58:02,728 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 83 transitions. [2022-10-17 10:58:02,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:02,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:58:02,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:58:02,733 INFO L87 Difference]: Start difference. First operand 56 states and 83 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:02,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:58:02,780 INFO L93 Difference]: Finished difference Result 58 states and 84 transitions. [2022-10-17 10:58:02,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 84 transitions. [2022-10-17 10:58:02,781 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-10-17 10:58:02,782 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 57 states and 83 transitions. [2022-10-17 10:58:02,782 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2022-10-17 10:58:02,782 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2022-10-17 10:58:02,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 83 transitions. [2022-10-17 10:58:02,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:02,783 INFO L218 hiAutomatonCegarLoop]: Abstraction has 57 states and 83 transitions. [2022-10-17 10:58:02,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 83 transitions. [2022-10-17 10:58:02,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2022-10-17 10:58:02,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 55 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:02,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 82 transitions. [2022-10-17 10:58:02,787 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 82 transitions. [2022-10-17 10:58:02,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:58:02,789 INFO L428 stractBuchiCegarLoop]: Abstraction has 56 states and 82 transitions. [2022-10-17 10:58:02,789 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 10:58:02,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 82 transitions. [2022-10-17 10:58:02,790 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-10-17 10:58:02,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:02,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:02,791 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:02,791 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:58:02,792 INFO L748 eck$LassoCheckResult]: Stem: 1656#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 1624#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1625#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1660#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1630#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1631#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1633#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1634#L47-3 assume !false; 1658#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1646#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1647#L47-3 assume !false; 1657#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1632#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1649#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret23#1;havoc main_#t~ret23#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1653#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1650#L35-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1652#L47-5 [2022-10-17 10:58:02,792 INFO L750 eck$LassoCheckResult]: Loop: 1652#L47-5 assume !false; 1655#L38-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1663#L47-4 assume base2flt_~m#1 % 4294967296 < 16777216; 1652#L47-5 [2022-10-17 10:58:02,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:02,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1105339009, now seen corresponding path program 1 times [2022-10-17 10:58:02,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:02,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276691343] [2022-10-17 10:58:02,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:02,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:02,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:02,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:02,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:02,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276691343] [2022-10-17 10:58:02,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276691343] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:02,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18369957] [2022-10-17 10:58:02,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:02,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:02,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:02,985 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:58:02,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-10-17 10:58:02,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-17 10:58:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:03,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:03,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:03,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:03,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:58:03,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:03,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18369957] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:58:03,104 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:58:03,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-10-17 10:58:03,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074974352] [2022-10-17 10:58:03,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:58:03,105 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:58:03,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:03,106 INFO L85 PathProgramCache]: Analyzing trace with hash 257383, now seen corresponding path program 1 times [2022-10-17 10:58:03,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:03,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987219595] [2022-10-17 10:58:03,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:03,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:03,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:03,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:03,153 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:03,153 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:03,153 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:03,153 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:03,153 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:58:03,153 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:03,153 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:03,154 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:03,154 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration5_Loop [2022-10-17 10:58:03,154 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:03,154 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:03,155 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:03,160 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:03,232 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:03,232 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:58:03,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:03,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:03,233 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:03,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-10-17 10:58:03,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:03,249 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:03,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:03,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:03,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:03,317 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:03,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:58:03,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:03,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-10-17 10:58:03,381 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:58:03,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:03,391 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:03,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:03,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:03,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:03,391 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:58:03,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:03,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:03,392 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:03,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration5_Loop [2022-10-17 10:58:03,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:03,392 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:03,393 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:03,398 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:03,460 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:03,460 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:58:03,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:03,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:03,462 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:03,466 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:58:03,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:03,475 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:58:03,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:03,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:03,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:03,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:58:03,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:58:03,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-10-17 10:58:03,493 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:58:03,497 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:58:03,497 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:58:03,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:03,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:03,498 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:03,500 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:58:03,500 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:58:03,500 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:58:03,500 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-10-17 10:58:03,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-10-17 10:58:03,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:03,537 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:58:03,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:03,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:03,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:03,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:03,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:03,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:03,619 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:58:03,619 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 82 transitions. cyclomatic complexity: 31 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:03,646 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 82 transitions. cyclomatic complexity: 31. 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 92 states and 137 transitions. Complement of second has 5 states. [2022-10-17 10:58:03,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:03,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:03,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2022-10-17 10:58:03,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 92 transitions. Stem has 16 letters. Loop has 3 letters. [2022-10-17 10:58:03,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:03,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 92 transitions. Stem has 19 letters. Loop has 3 letters. [2022-10-17 10:58:03,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:03,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 92 transitions. Stem has 16 letters. Loop has 6 letters. [2022-10-17 10:58:03,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:03,650 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 137 transitions. [2022-10-17 10:58:03,651 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-10-17 10:58:03,652 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 80 states and 116 transitions. [2022-10-17 10:58:03,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2022-10-17 10:58:03,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2022-10-17 10:58:03,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 116 transitions. [2022-10-17 10:58:03,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:03,653 INFO L218 hiAutomatonCegarLoop]: Abstraction has 80 states and 116 transitions. [2022-10-17 10:58:03,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 116 transitions. [2022-10-17 10:58:03,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 59. [2022-10-17 10:58:03,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.4576271186440677) internal successors, (86), 58 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:03,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2022-10-17 10:58:03,656 INFO L240 hiAutomatonCegarLoop]: Abstraction has 59 states and 86 transitions. [2022-10-17 10:58:03,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:03,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:58:03,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:58:03,657 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:03,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:58:03,773 INFO L93 Difference]: Finished difference Result 113 states and 158 transitions. [2022-10-17 10:58:03,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 158 transitions. [2022-10-17 10:58:03,775 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-10-17 10:58:03,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 107 states and 152 transitions. [2022-10-17 10:58:03,776 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 88 [2022-10-17 10:58:03,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 88 [2022-10-17 10:58:03,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 152 transitions. [2022-10-17 10:58:03,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:03,777 INFO L218 hiAutomatonCegarLoop]: Abstraction has 107 states and 152 transitions. [2022-10-17 10:58:03,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 152 transitions. [2022-10-17 10:58:03,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 74. [2022-10-17 10:58:03,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 74 states have (on average 1.4594594594594594) internal successors, (108), 73 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) [2022-10-17 10:58:03,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2022-10-17 10:58:03,780 INFO L240 hiAutomatonCegarLoop]: Abstraction has 74 states and 108 transitions. [2022-10-17 10:58:03,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:58:03,781 INFO L428 stractBuchiCegarLoop]: Abstraction has 74 states and 108 transitions. [2022-10-17 10:58:03,781 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 10:58:03,782 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 108 transitions. [2022-10-17 10:58:03,782 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-10-17 10:58:03,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:03,783 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:03,783 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:03,784 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:58:03,784 INFO L748 eck$LassoCheckResult]: Stem: 2151#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 2115#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2116#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2153#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 2122#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2123#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 2124#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 2125#L47-3 assume !false; 2160#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2140#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2128#L73-1 assume 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216);base2flt_~m#1 := 0; 2105#L76-15 assume !((1 == base2flt_~m#1 && (0 == 16777216 * (128 + base2flt_~e#1) || 1 == 16777216 * (128 + base2flt_~e#1))) || ((0 == base2flt_~m#1 || 1 == base2flt_~m#1) && 1 == 16777216 * (128 + base2flt_~e#1))); 2109#L77-9 assume !(0 == base2flt_~m#1 && (0 == 16777216 * (128 + base2flt_~e#1) || 1 == 16777216 * (128 + base2flt_~e#1))); 2110#L77-11 assume !((0 == base2flt_~m#1 || 1 == base2flt_~m#1) && 0 == 16777216 * (128 + base2flt_~e#1)); 2158#L77-13 assume !(base2flt_~m#1 >= 0 && 16777216 * (128 + base2flt_~e#1) >= 0);base2flt_~res~0#1 := base2flt_#t~nondet5#1;havoc base2flt_#t~nondet5#1; 2120#L77-15 base2flt_~__retres4~0#1 := base2flt_~res~0#1; 2121#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 2136#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret23#1;havoc main_#t~ret23#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2142#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2102#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 2103#L80-2 main_#t~ret24#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret24#1;havoc main_#t~ret24#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2152#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 2117#L35-3 assume base2flt_~m#1 % 4294967296 < 16777216; 2118#L47-7 [2022-10-17 10:58:03,784 INFO L750 eck$LassoCheckResult]: Loop: 2118#L47-7 assume !false; 2107#L38-3 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2108#L47-6 assume base2flt_~m#1 % 4294967296 < 16777216; 2118#L47-7 [2022-10-17 10:58:03,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:03,785 INFO L85 PathProgramCache]: Analyzing trace with hash 488953666, now seen corresponding path program 1 times [2022-10-17 10:58:03,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:03,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88328998] [2022-10-17 10:58:03,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:03,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:03,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:03,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88328998] [2022-10-17 10:58:03,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88328998] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:58:03,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:58:03,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:58:03,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912915367] [2022-10-17 10:58:03,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:58:03,938 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:58:03,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:03,939 INFO L85 PathProgramCache]: Analyzing trace with hash 361648, now seen corresponding path program 1 times [2022-10-17 10:58:03,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:03,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775807156] [2022-10-17 10:58:03,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:03,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:03,946 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:03,949 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:03,978 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:03,978 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:03,978 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:03,978 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:03,979 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:58:03,979 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:03,979 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:03,979 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:03,979 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration6_Loop [2022-10-17 10:58:03,979 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:03,979 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:03,980 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:03,985 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:04,046 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:04,047 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:58:04,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:04,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:04,049 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:04,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-10-17 10:58:04,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:04,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:04,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:04,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:04,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:04,086 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:04,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-10-17 10:58:04,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:58:04,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:04,149 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:58:04,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:04,156 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:04,156 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:04,156 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:04,156 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:04,156 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:58:04,156 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:04,156 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:04,156 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:04,156 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration6_Loop [2022-10-17 10:58:04,156 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:04,156 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:04,157 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:04,165 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:04,251 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:04,251 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:58:04,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:04,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:04,265 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:04,268 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:58:04,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:04,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-10-17 10:58:04,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:04,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:58:04,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:04,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:04,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:04,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:58:04,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:58:04,281 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:58:04,284 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:58:04,284 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:58:04,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:04,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:04,286 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:04,288 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:58:04,288 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:58:04,288 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:58:04,288 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-10-17 10:58:04,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-10-17 10:58:04,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-10-17 10:58:04,309 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:58:04,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:04,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:04,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:04,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:04,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:04,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:04,409 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-10-17 10:58:04,409 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 108 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:04,415 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 108 transitions. cyclomatic complexity: 39. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 78 states and 112 transitions. Complement of second has 4 states. [2022-10-17 10:58:04,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:04,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:04,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2022-10-17 10:58:04,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 23 letters. Loop has 3 letters. [2022-10-17 10:58:04,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:04,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 26 letters. Loop has 3 letters. [2022-10-17 10:58:04,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:04,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 23 letters. Loop has 6 letters. [2022-10-17 10:58:04,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:04,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 112 transitions. [2022-10-17 10:58:04,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:58:04,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 71 states and 104 transitions. [2022-10-17 10:58:04,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2022-10-17 10:58:04,420 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2022-10-17 10:58:04,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 104 transitions. [2022-10-17 10:58:04,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:04,421 INFO L218 hiAutomatonCegarLoop]: Abstraction has 71 states and 104 transitions. [2022-10-17 10:58:04,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 104 transitions. [2022-10-17 10:58:04,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-10-17 10:58:04,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 71 states have (on average 1.4647887323943662) internal successors, (104), 70 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:04,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2022-10-17 10:58:04,423 INFO L240 hiAutomatonCegarLoop]: Abstraction has 71 states and 104 transitions. [2022-10-17 10:58:04,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:04,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:58:04,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:58:04,424 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:04,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:58:04,491 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2022-10-17 10:58:04,491 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 127 transitions. [2022-10-17 10:58:04,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:58:04,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 89 states and 127 transitions. [2022-10-17 10:58:04,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 72 [2022-10-17 10:58:04,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2022-10-17 10:58:04,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 127 transitions. [2022-10-17 10:58:04,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:58:04,495 INFO L218 hiAutomatonCegarLoop]: Abstraction has 89 states and 127 transitions. [2022-10-17 10:58:04,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 127 transitions. [2022-10-17 10:58:04,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 76. [2022-10-17 10:58:04,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 76 states have (on average 1.4473684210526316) internal successors, (110), 75 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:04,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 110 transitions. [2022-10-17 10:58:04,497 INFO L240 hiAutomatonCegarLoop]: Abstraction has 76 states and 110 transitions. [2022-10-17 10:58:04,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:58:04,498 INFO L428 stractBuchiCegarLoop]: Abstraction has 76 states and 110 transitions. [2022-10-17 10:58:04,498 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-10-17 10:58:04,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states and 110 transitions. [2022-10-17 10:58:04,499 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:58:04,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:58:04,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:58:04,500 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:04,500 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:58:04,501 INFO L748 eck$LassoCheckResult]: Stem: 2557#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 2523#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2524#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2559#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 2529#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2530#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 2531#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 2532#L47-3 assume !false; 2567#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2576#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2577#L73-1 assume 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216);base2flt_~m#1 := 0; 2587#L76-15 assume !((1 == base2flt_~m#1 && (0 == 16777216 * (128 + base2flt_~e#1) || 1 == 16777216 * (128 + base2flt_~e#1))) || ((0 == base2flt_~m#1 || 1 == base2flt_~m#1) && 1 == 16777216 * (128 + base2flt_~e#1))); 2586#L77-9 assume !(0 == base2flt_~m#1 && (0 == 16777216 * (128 + base2flt_~e#1) || 1 == 16777216 * (128 + base2flt_~e#1))); 2585#L77-11 assume !((0 == base2flt_~m#1 || 1 == base2flt_~m#1) && 0 == 16777216 * (128 + base2flt_~e#1)); 2566#L77-13 assume base2flt_~m#1 >= 0 && 16777216 * (128 + base2flt_~e#1) >= 0;abs_77 := (if base2flt_~m#1 < 16777216 * (128 + base2flt_~e#1) then 16777216 * (128 + base2flt_~e#1) else base2flt_~m#1);assume base2flt_~m#1 >= 0 && 16777216 * (128 + base2flt_~e#1) >= 0;assume base2flt_~res~0#1 >= abs_77; 2527#L77-15 base2flt_~__retres4~0#1 := base2flt_~res~0#1; 2528#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 2545#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret23#1;havoc main_#t~ret23#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2549#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2515#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 2516#L80-2 main_#t~ret24#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret24#1;havoc main_#t~ret24#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 2558#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 2525#L35-3 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2526#L57-11 [2022-10-17 10:58:04,501 INFO L750 eck$LassoCheckResult]: Loop: 2526#L57-11 assume !false; 2533#L58-3 assume base2flt_~m#1 % 4294967296 >= 33554432; 2534#L59-3 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 2526#L57-11 [2022-10-17 10:58:04,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:04,501 INFO L85 PathProgramCache]: Analyzing trace with hash -191104678, now seen corresponding path program 1 times [2022-10-17 10:58:04,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:04,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991770565] [2022-10-17 10:58:04,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:04,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:04,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:04,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:04,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991770565] [2022-10-17 10:58:04,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991770565] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:58:04,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:58:04,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:58:04,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493330824] [2022-10-17 10:58:04,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:58:04,584 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:58:04,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:04,584 INFO L85 PathProgramCache]: Analyzing trace with hash 387407, now seen corresponding path program 1 times [2022-10-17 10:58:04,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:04,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937352735] [2022-10-17 10:58:04,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:04,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:04,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:58:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:58:04,594 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:58:04,621 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:04,621 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:04,621 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:04,621 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:04,621 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:58:04,621 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:04,621 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:04,622 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:04,622 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration7_Loop [2022-10-17 10:58:04,622 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:04,622 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:04,623 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:04,628 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:04,710 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:04,710 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:58:04,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:04,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:04,711 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:04,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:58:04,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:04,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-10-17 10:58:04,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:04,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:04,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:04,778 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:04,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:58:04,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:58:04,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-10-17 10:58:04,842 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:58:04,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:04,845 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:58:04,845 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:58:04,845 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:58:04,845 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:58:04,846 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:58:04,846 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:04,846 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:58:04,846 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:58:04,846 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration7_Loop [2022-10-17 10:58:04,846 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:58:04,846 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:58:04,846 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:04,858 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:58:04,938 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:58:04,939 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:58:04,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:04,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:04,940 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:04,950 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:58:04,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:58:04,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:58:04,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:58:04,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:58:04,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:58:04,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:58:04,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:58:04,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-10-17 10:58:04,966 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:58:04,968 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:58:04,968 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:58:04,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:58:04,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:04,969 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:04,970 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:58:04,970 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:58:04,971 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:58:04,971 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-10-17 10:58:04,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-10-17 10:58:04,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-10-17 10:58:04,999 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:58:05,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:05,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:58:05,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:05,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:58:05,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:05,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:05,101 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-10-17 10:58:05,101 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76 states and 110 transitions. cyclomatic complexity: 38 Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:05,108 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76 states and 110 transitions. cyclomatic complexity: 38. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 79 states and 114 transitions. Complement of second has 4 states. [2022-10-17 10:58:05,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-10-17 10:58:05,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:05,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2022-10-17 10:58:05,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 69 transitions. Stem has 23 letters. Loop has 3 letters. [2022-10-17 10:58:05,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:05,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 69 transitions. Stem has 26 letters. Loop has 3 letters. [2022-10-17 10:58:05,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:05,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 69 transitions. Stem has 23 letters. Loop has 6 letters. [2022-10-17 10:58:05,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:58:05,113 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 114 transitions. [2022-10-17 10:58:05,114 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:58:05,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 0 states and 0 transitions. [2022-10-17 10:58:05,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:58:05,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:58:05,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:58:05,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:58:05,114 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:58:05,115 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:58:05,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:05,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:58:05,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:58:05,116 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:58:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:58:05,116 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-10-17 10:58:05,116 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-10-17 10:58:05,116 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:58:05,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 10:58:05,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:58:05,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:58:05,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:58:05,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:58:05,117 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:58:05,117 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:58:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:58:05,118 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:58:05,118 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-10-17 10:58:05,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:58:05,119 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:58:05,119 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-10-17 10:58:05,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:58:05 BoogieIcfgContainer [2022-10-17 10:58:05,126 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:58:05,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:58:05,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:58:05,127 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:58:05,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:57:58" (3/4) ... [2022-10-17 10:58:05,130 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:58:05,131 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:58:05,132 INFO L158 Benchmark]: Toolchain (without parser) took 8779.87ms. Allocated memory was 88.1MB in the beginning and 144.7MB in the end (delta: 56.6MB). Free memory was 51.9MB in the beginning and 53.1MB in the end (delta: -1.2MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. [2022-10-17 10:58:05,134 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 88.1MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:58:05,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.97ms. Allocated memory is still 88.1MB. Free memory was 51.8MB in the beginning and 60.8MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:58:05,135 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.46ms. Allocated memory is still 88.1MB. Free memory was 60.8MB in the beginning and 57.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:58:05,138 INFO L158 Benchmark]: Boogie Preprocessor took 92.57ms. Allocated memory is still 88.1MB. Free memory was 57.6MB in the beginning and 55.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:58:05,138 INFO L158 Benchmark]: RCFGBuilder took 1118.65ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 55.2MB in the beginning and 79.9MB in the end (delta: -24.7MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2022-10-17 10:58:05,139 INFO L158 Benchmark]: BuchiAutomizer took 7035.66ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 79.3MB in the beginning and 53.1MB in the end (delta: 26.2MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2022-10-17 10:58:05,139 INFO L158 Benchmark]: Witness Printer took 3.83ms. Allocated memory is still 144.7MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:58:05,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 88.1MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 425.97ms. Allocated memory is still 88.1MB. Free memory was 51.8MB in the beginning and 60.8MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.46ms. Allocated memory is still 88.1MB. Free memory was 60.8MB in the beginning and 57.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.57ms. Allocated memory is still 88.1MB. Free memory was 57.6MB in the beginning and 55.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1118.65ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 55.2MB in the beginning and 79.9MB in the end (delta: -24.7MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 7035.66ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 79.3MB in the beginning and 53.1MB in the end (delta: 26.2MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. * Witness Printer took 3.83ms. Allocated memory is still 144.7MB. Free memory is still 53.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (6 trivial, 7 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.9s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 4.9s. Construction of modules took 0.4s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 10. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 208 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [7, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 873 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 866 mSDsluCounter, 1446 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 394 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 458 IncrementalHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 1052 mSDtfsCounter, 458 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp56 ukn100 mio100 lsp100 div561 bol100 ite100 ukn100 eq132 hnf96 smp42 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-10-17 10:58:05,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:05,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:05,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-10-17 10:58:05,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78dc52b3-eb1c-497e-b744-f77650b2ff59/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE