./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:58:25,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:25,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 07:58:25,880 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:25,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:25,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:25,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:25,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:25,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:25,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:25,941 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:25,941 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:58:25,942 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:58:25,944 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:58:25,944 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:58:25,945 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:58:25,945 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:58:25,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:25,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:58:25,947 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:58:25,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:58:25,948 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:58:25,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:25,949 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:58:25,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:58:25,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:58:25,950 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:58:25,951 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:58:25,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:58:25,952 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:58:25,952 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:25,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:25,953 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:25,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:25,953 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:58:25,954 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:58:25,954 INFO L153 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_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2023-11-19 07:58:26,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:26,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:26,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:26,324 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:26,325 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:26,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-11-19 07:58:29,504 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:58:29,732 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:58:29,733 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-11-19 07:58:29,746 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/data/fc20936d2/8e727691c62c48279c12b59b562b0d75/FLAG0ba9393b2 [2023-11-19 07:58:29,765 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/data/fc20936d2/8e727691c62c48279c12b59b562b0d75 [2023-11-19 07:58:29,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:58:29,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:58:29,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:29,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:58:29,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:58:29,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:29" (1/1) ... [2023-11-19 07:58:29,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2c4f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:29, skipping insertion in model container [2023-11-19 07:58:29,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:29" (1/1) ... [2023-11-19 07:58:29,831 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:58:30,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:30,037 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:58:30,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:30,108 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:58:30,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:30 WrapperNode [2023-11-19 07:58:30,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:30,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:30,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:58:30,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:58:30,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:30" (1/1) ... [2023-11-19 07:58:30,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:30" (1/1) ... [2023-11-19 07:58:30,179 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 11, calls inlined = 9, statements flattened = 371 [2023-11-19 07:58:30,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:30,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:58:30,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:58:30,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:58:30,190 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:30" (1/1) ... [2023-11-19 07:58:30,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:30" (1/1) ... [2023-11-19 07:58:30,204 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:30" (1/1) ... [2023-11-19 07:58:30,204 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:30" (1/1) ... [2023-11-19 07:58:30,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:30" (1/1) ... [2023-11-19 07:58:30,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:30" (1/1) ... [2023-11-19 07:58:30,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:30" (1/1) ... [2023-11-19 07:58:30,249 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:30" (1/1) ... [2023-11-19 07:58:30,254 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:58:30,266 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:58:30,266 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:58:30,266 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:58:30,267 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:30" (1/1) ... [2023-11-19 07:58:30,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:30,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:30,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:30,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:58:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:58:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:58:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:58:30,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:58:30,430 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:58:30,432 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:58:30,999 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:58:31,009 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:58:31,010 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-19 07:58:31,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:31 BoogieIcfgContainer [2023-11-19 07:58:31,019 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:58:31,020 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:58:31,020 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:58:31,024 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:58:31,025 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:58:31,025 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:58:29" (1/3) ... [2023-11-19 07:58:31,026 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1976cdc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:58:31, skipping insertion in model container [2023-11-19 07:58:31,026 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:58:31,027 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:30" (2/3) ... [2023-11-19 07:58:31,027 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1976cdc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:58:31, skipping insertion in model container [2023-11-19 07:58:31,027 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:58:31,027 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:31" (3/3) ... [2023-11-19 07:58:31,029 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2023-11-19 07:58:31,115 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:58:31,115 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:58:31,115 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:58:31,116 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:58:31,116 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:58:31,116 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:58:31,116 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:58:31,117 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:58:31,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 105 states, 104 states have (on average 1.7403846153846154) internal successors, (181), 104 states have internal predecessors, (181), 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) [2023-11-19 07:58:31,165 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2023-11-19 07:58:31,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:58:31,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:58:31,172 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 07:58:31,173 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:58:31,173 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:58:31,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 105 states, 104 states have (on average 1.7403846153846154) internal successors, (181), 104 states have internal predecessors, (181), 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) [2023-11-19 07:58:31,195 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2023-11-19 07:58:31,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:58:31,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:58:31,196 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 07:58:31,196 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:58:31,205 INFO L748 eck$LassoCheckResult]: Stem: 24#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3); 32#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sb~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sb~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 68#L29true assume !(0 == base2flt_~m#1 % 4294967296); 87#L35true assume !(base2flt_~m#1 % 4294967296 < 16777216); 48#L57-2true [2023-11-19 07:58:31,206 INFO L750 eck$LassoCheckResult]: Loop: 48#L57-2true assume !false; 31#L58true assume base2flt_~m#1 % 4294967296 >= 33554432; 77#L59true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 48#L57-2true [2023-11-19 07:58:31,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:31,213 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2023-11-19 07:58:31,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:31,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922752385] [2023-11-19 07:58:31,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:31,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:31,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:31,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:31,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922752385] [2023-11-19 07:58:31,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922752385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:31,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:31,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:58:31,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489436205] [2023-11-19 07:58:31,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:31,503 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:58:31,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:31,507 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2023-11-19 07:58:31,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:31,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238530521] [2023-11-19 07:58:31,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:31,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:31,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:58:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:31,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:58:31,699 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:31,699 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:31,700 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:31,700 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:31,700 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:58:31,700 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:31,700 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:31,701 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:31,701 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2023-11-19 07:58:31,701 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:31,701 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:31,719 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:31,733 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:31,855 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:31,856 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:58:31,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:31,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:31,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:31,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:58:31,879 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:31,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:58:31,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-19 07:58:31,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:31,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:31,921 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:31,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:58:31,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:58:31,924 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:31,974 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:58:31,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:31,978 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:31,978 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:31,978 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:31,978 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:31,979 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:58:31,979 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:31,979 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:31,979 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:31,979 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration1_Loop [2023-11-19 07:58:31,979 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:31,979 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:31,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:31,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:32,124 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:32,129 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:58:32,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:32,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:32,135 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:32,145 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 [2023-11-19 07:58:32,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:58:32,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:58:32,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:58:32,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:58:32,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:58:32,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:58:32,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:58:32,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:58:32,174 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:58:32,179 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:58:32,180 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:58:32,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:32,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:32,220 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:32,232 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:58:32,232 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:58:32,233 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:58:32,234 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2023-11-19 07:58:32,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:58:32,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:32,268 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:58:32,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:32,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:58:32,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:32,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:32,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:32,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:32,411 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 [2023-11-19 07:58:32,415 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 105 states, 104 states have (on average 1.7403846153846154) internal successors, (181), 104 states have internal predecessors, (181), 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) [2023-11-19 07:58:32,560 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 105 states, 104 states have (on average 1.7403846153846154) internal successors, (181), 104 states have internal predecessors, (181), 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 312 states and 532 transitions. Complement of second has 6 states. [2023-11-19 07:58:32,562 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 [2023-11-19 07:58:32,567 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) [2023-11-19 07:58:32,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 352 transitions. [2023-11-19 07:58:32,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 352 transitions. Stem has 4 letters. Loop has 3 letters. [2023-11-19 07:58:32,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:32,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 352 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-19 07:58:32,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:32,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 352 transitions. Stem has 4 letters. Loop has 6 letters. [2023-11-19 07:58:32,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:32,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 532 transitions. [2023-11-19 07:58:32,584 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2023-11-19 07:58:32,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 109 states and 174 transitions. [2023-11-19 07:58:32,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2023-11-19 07:58:32,593 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2023-11-19 07:58:32,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 174 transitions. [2023-11-19 07:58:32,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:58:32,595 INFO L218 hiAutomatonCegarLoop]: Abstraction has 109 states and 174 transitions. [2023-11-19 07:58:32,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 174 transitions. [2023-11-19 07:58:32,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 93. [2023-11-19 07:58:32,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.6451612903225807) internal successors, (153), 92 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:32,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 153 transitions. [2023-11-19 07:58:32,644 INFO L240 hiAutomatonCegarLoop]: Abstraction has 93 states and 153 transitions. [2023-11-19 07:58:32,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:32,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:32,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:32,648 INFO L87 Difference]: Start difference. First operand 93 states and 153 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:32,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:32,741 INFO L93 Difference]: Finished difference Result 45 states and 66 transitions. [2023-11-19 07:58:32,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 66 transitions. [2023-11-19 07:58:32,743 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2023-11-19 07:58:32,744 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 66 transitions. [2023-11-19 07:58:32,744 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2023-11-19 07:58:32,745 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2023-11-19 07:58:32,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 66 transitions. [2023-11-19 07:58:32,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:58:32,746 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-11-19 07:58:32,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 66 transitions. [2023-11-19 07:58:32,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-19 07:58:32,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 44 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:32,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2023-11-19 07:58:32,750 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-11-19 07:58:32,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:32,752 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-11-19 07:58:32,752 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:58:32,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 66 transitions. [2023-11-19 07:58:32,753 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2023-11-19 07:58:32,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:58:32,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:58:32,754 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:32,754 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:58:32,755 INFO L748 eck$LassoCheckResult]: Stem: 642#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;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); 608#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#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;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#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; 609#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 639#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 633#base2flt_returnLabel#1 main_#t~ret19#1 := 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;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#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; 634#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 616#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 617#L47-3 [2023-11-19 07:58:32,755 INFO L750 eck$LassoCheckResult]: Loop: 617#L47-3 assume !false; 636#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 630#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 617#L47-3 [2023-11-19 07:58:32,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:32,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1807335815, now seen corresponding path program 1 times [2023-11-19 07:58:32,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:32,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727386644] [2023-11-19 07:58:32,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:32,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:32,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:58:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:32,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:58:32,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:32,793 INFO L85 PathProgramCache]: Analyzing trace with hash 134251, now seen corresponding path program 1 times [2023-11-19 07:58:32,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:32,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701180418] [2023-11-19 07:58:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:32,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:32,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:58:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:32,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:58:32,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:32,823 INFO L85 PathProgramCache]: Analyzing trace with hash 631346469, now seen corresponding path program 1 times [2023-11-19 07:58:32,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:32,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602511691] [2023-11-19 07:58:32,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:32,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:32,862 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:58:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:32,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:58:32,918 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:32,919 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:32,919 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:32,919 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:32,919 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:58:32,919 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:32,920 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:32,920 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:32,920 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2023-11-19 07:58:32,920 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:32,920 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:32,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:32,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:33,063 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:33,064 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:58:33,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:33,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:33,065 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:33,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:58:33,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:33,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:58:33,128 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:58:33,128 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:58:33,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:33,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:33,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:33,139 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:33,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:58:33,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:33,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:58:33,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:33,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:33,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:33,193 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:33,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:58:33,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:58:33,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:33,227 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:58:33,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:33,235 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:33,236 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:33,236 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:33,236 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:33,236 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:58:33,236 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:33,236 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:33,236 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:33,236 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration2_Loop [2023-11-19 07:58:33,236 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:33,237 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:33,238 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:33,247 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:33,374 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:33,374 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:58:33,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:33,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:33,379 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:33,389 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 [2023-11-19 07:58:33,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:58:33,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:58:33,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:58:33,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:58:33,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:58:33,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:58:33,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:58:33,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:58:33,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:58:33,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:33,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:33,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:33,441 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:33,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:58:33,446 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 [2023-11-19 07:58:33,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:58:33,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:58:33,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:58:33,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:58:33,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:58:33,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:58:33,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:58:33,471 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:58:33,484 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:58:33,484 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:58:33,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:33,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:33,490 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:33,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:58:33,492 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:58:33,493 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:58:33,493 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:58:33,493 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2023-11-19 07:58:33,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:33,512 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:58:33,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:33,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:58:33,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:33,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:33,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:33,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:33,621 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 [2023-11-19 07:58:33,622 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 66 transitions. cyclomatic complexity: 27 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:33,669 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 66 transitions. cyclomatic complexity: 27. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 89 states and 131 transitions. Complement of second has 5 states. [2023-11-19 07:58:33,670 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 [2023-11-19 07:58:33,672 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) [2023-11-19 07:58:33,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2023-11-19 07:58:33,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-19 07:58:33,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:33,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-19 07:58:33,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:33,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 78 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-19 07:58:33,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:33,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 131 transitions. [2023-11-19 07:58:33,678 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2023-11-19 07:58:33,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 81 states and 118 transitions. [2023-11-19 07:58:33,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 75 [2023-11-19 07:58:33,682 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 78 [2023-11-19 07:58:33,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 81 states and 118 transitions. [2023-11-19 07:58:33,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:58:33,684 INFO L218 hiAutomatonCegarLoop]: Abstraction has 81 states and 118 transitions. [2023-11-19 07:58:33,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states and 118 transitions. [2023-11-19 07:58:33,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 48. [2023-11-19 07:58:33,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 47 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:33,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2023-11-19 07:58:33,695 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 70 transitions. [2023-11-19 07:58:33,695 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 70 transitions. [2023-11-19 07:58:33,695 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 07:58:33,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 70 transitions. [2023-11-19 07:58:33,696 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2023-11-19 07:58:33,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:58:33,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:58:33,698 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:33,698 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:58:33,699 INFO L748 eck$LassoCheckResult]: Stem: 829#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;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); 792#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#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;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#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; 793#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 826#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 819#base2flt_returnLabel#1 main_#t~ret19#1 := 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;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#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; 820#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 800#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 802#L57-5 [2023-11-19 07:58:33,699 INFO L750 eck$LassoCheckResult]: Loop: 802#L57-5 assume !false; 803#L58-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 804#L59-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 802#L57-5 [2023-11-19 07:58:33,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:33,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1807335841, now seen corresponding path program 1 times [2023-11-19 07:58:33,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:33,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124158235] [2023-11-19 07:58:33,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:33,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:33,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:33,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:33,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124158235] [2023-11-19 07:58:33,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124158235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:33,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:33,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:58:33,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725572823] [2023-11-19 07:58:33,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:33,805 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:58:33,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:33,806 INFO L85 PathProgramCache]: Analyzing trace with hash 160010, now seen corresponding path program 1 times [2023-11-19 07:58:33,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:33,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664466716] [2023-11-19 07:58:33,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:33,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:33,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:58:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:33,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:33,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:58:33,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:33,925 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:33,925 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:33,925 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:33,925 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:33,925 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:58:33,926 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:33,926 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:33,926 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:33,926 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2023-11-19 07:58:33,926 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:33,926 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:33,927 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:33,936 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:34,042 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:34,042 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:58:34,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:34,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:34,047 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:34,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:58:34,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:34,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:58:34,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:34,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:34,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:34,108 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:34,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:58:34,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:34,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:58:34,165 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:58:34,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:34,174 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:34,174 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:34,174 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:34,174 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:34,174 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:58:34,174 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:34,174 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:34,174 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:34,174 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration3_Loop [2023-11-19 07:58:34,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:34,175 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:34,175 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:34,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:34,293 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:34,293 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:58:34,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:34,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:34,298 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:34,301 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 [2023-11-19 07:58:34,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:58:34,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:58:34,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:58:34,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:58:34,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:58:34,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:58:34,316 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:58:34,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:58:34,326 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:58:34,328 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:58:34,328 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:58:34,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:34,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:34,330 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:34,337 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:58:34,337 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:58:34,337 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:58:34,337 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2023-11-19 07:58:34,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 07:58:34,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:34,361 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:58:34,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:34,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:58:34,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:34,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:34,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:34,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:34,429 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 [2023-11-19 07:58:34,429 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 70 transitions. cyclomatic complexity: 28 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:34,463 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 70 transitions. cyclomatic complexity: 28. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 91 states and 134 transitions. Complement of second has 5 states. [2023-11-19 07:58:34,464 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 [2023-11-19 07:58:34,466 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) [2023-11-19 07:58:34,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2023-11-19 07:58:34,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-19 07:58:34,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:34,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-19 07:58:34,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:34,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 77 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-19 07:58:34,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:34,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 134 transitions. [2023-11-19 07:58:34,472 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2023-11-19 07:58:34,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 83 states and 121 transitions. [2023-11-19 07:58:34,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2023-11-19 07:58:34,476 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2023-11-19 07:58:34,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 121 transitions. [2023-11-19 07:58:34,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:58:34,477 INFO L218 hiAutomatonCegarLoop]: Abstraction has 83 states and 121 transitions. [2023-11-19 07:58:34,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 121 transitions. [2023-11-19 07:58:34,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 51. [2023-11-19 07:58:34,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.4509803921568627) internal successors, (74), 50 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:34,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2023-11-19 07:58:34,488 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 74 transitions. [2023-11-19 07:58:34,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:34,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:34,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:34,489 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:34,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:34,565 INFO L93 Difference]: Finished difference Result 49 states and 67 transitions. [2023-11-19 07:58:34,566 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 67 transitions. [2023-11-19 07:58:34,567 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2023-11-19 07:58:34,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 67 transitions. [2023-11-19 07:58:34,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2023-11-19 07:58:34,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2023-11-19 07:58:34,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2023-11-19 07:58:34,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:58:34,568 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2023-11-19 07:58:34,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2023-11-19 07:58:34,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2023-11-19 07:58:34,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4) internal successors, (63), 44 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:34,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2023-11-19 07:58:34,581 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2023-11-19 07:58:34,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:34,584 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 63 transitions. [2023-11-19 07:58:34,585 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 07:58:34,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 63 transitions. [2023-11-19 07:58:34,585 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2023-11-19 07:58:34,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:58:34,586 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:58:34,586 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:34,587 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:58:34,587 INFO L748 eck$LassoCheckResult]: Stem: 1113#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;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); 1079#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#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;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#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; 1080#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1110#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1103#base2flt_returnLabel#1 main_#t~ret19#1 := 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;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1104#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1087#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1088#L47-3 assume !false; 1106#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1076#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1077#base2flt_returnLabel#2 main_#t~ret20#1 := 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;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#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; 1078#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1098#L35-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1099#L57-8 [2023-11-19 07:58:34,587 INFO L750 eck$LassoCheckResult]: Loop: 1099#L57-8 assume !false; 1092#L58-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 1093#L59-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 1099#L57-8 [2023-11-19 07:58:34,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:34,588 INFO L85 PathProgramCache]: Analyzing trace with hash 780922602, now seen corresponding path program 1 times [2023-11-19 07:58:34,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:34,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033384841] [2023-11-19 07:58:34,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:34,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:34,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:34,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033384841] [2023-11-19 07:58:34,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033384841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:34,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:34,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:34,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915008802] [2023-11-19 07:58:34,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:34,669 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:58:34,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:34,669 INFO L85 PathProgramCache]: Analyzing trace with hash 245408, now seen corresponding path program 1 times [2023-11-19 07:58:34,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:34,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026693585] [2023-11-19 07:58:34,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:34,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:34,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:58:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:34,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:58:34,751 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:34,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:34,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:34,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:34,751 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:58:34,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:34,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:34,751 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:34,751 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2023-11-19 07:58:34,751 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:34,751 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:34,752 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:34,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:34,858 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:34,859 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:58:34,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:34,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:34,861 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:34,869 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:58:34,869 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:34,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-19 07:58:34,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:34,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:34,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:34,915 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:34,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:58:34,924 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:34,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-19 07:58:34,972 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:58:34,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:34,983 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:34,983 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:34,983 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:34,983 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:34,983 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:58:34,983 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:34,983 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:34,983 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:34,983 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration4_Loop [2023-11-19 07:58:34,983 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:34,983 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:34,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:34,992 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:35,089 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:35,089 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:58:35,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:35,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:35,091 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:35,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-19 07:58:35,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-19 07:58:35,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:58:35,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:58:35,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:58:35,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:58:35,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:58:35,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:58:35,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:58:35,122 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:58:35,131 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:58:35,131 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:58:35,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:35,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:35,132 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:35,147 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:58:35,147 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:58:35,148 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:58:35,148 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2023-11-19 07:58:35,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-19 07:58:35,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:35,175 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:58:35,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:35,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:58:35,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:35,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:35,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:35,243 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 [2023-11-19 07:58:35,243 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 63 transitions. cyclomatic complexity: 23 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:35,265 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 63 transitions. cyclomatic complexity: 23. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 101 transitions. Complement of second has 5 states. [2023-11-19 07:58:35,265 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 [2023-11-19 07:58:35,266 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) [2023-11-19 07:58:35,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2023-11-19 07:58:35,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 3 letters. [2023-11-19 07:58:35,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:35,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 16 letters. Loop has 3 letters. [2023-11-19 07:58:35,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:35,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 70 transitions. Stem has 13 letters. Loop has 6 letters. [2023-11-19 07:58:35,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:35,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 101 transitions. [2023-11-19 07:58:35,269 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2023-11-19 07:58:35,269 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 64 states and 88 transitions. [2023-11-19 07:58:35,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2023-11-19 07:58:35,270 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2023-11-19 07:58:35,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 88 transitions. [2023-11-19 07:58:35,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:58:35,270 INFO L218 hiAutomatonCegarLoop]: Abstraction has 64 states and 88 transitions. [2023-11-19 07:58:35,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 88 transitions. [2023-11-19 07:58:35,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 48. [2023-11-19 07:58:35,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 47 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:35,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2023-11-19 07:58:35,272 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 67 transitions. [2023-11-19 07:58:35,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:35,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:35,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:35,273 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:35,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:35,315 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2023-11-19 07:58:35,315 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 68 transitions. [2023-11-19 07:58:35,316 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2023-11-19 07:58:35,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 49 states and 67 transitions. [2023-11-19 07:58:35,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2023-11-19 07:58:35,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2023-11-19 07:58:35,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2023-11-19 07:58:35,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:58:35,317 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2023-11-19 07:58:35,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2023-11-19 07:58:35,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2023-11-19 07:58:35,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.375) internal successors, (66), 47 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:35,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2023-11-19 07:58:35,324 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 66 transitions. [2023-11-19 07:58:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:35,327 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 66 transitions. [2023-11-19 07:58:35,327 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 07:58:35,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 66 transitions. [2023-11-19 07:58:35,328 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2023-11-19 07:58:35,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:58:35,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:58:35,329 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:35,329 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:58:35,329 INFO L748 eck$LassoCheckResult]: Stem: 1397#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;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); 1360#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#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;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#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; 1361#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1393#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1386#base2flt_returnLabel#1 main_#t~ret19#1 := 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;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#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; 1387#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1368#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1369#L47-3 assume !false; 1390#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1377#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1378#L47-3 assume !false; 1389#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1357#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1358#base2flt_returnLabel#2 main_#t~ret20#1 := 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;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#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; 1359#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1381#L35-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1383#L47-5 [2023-11-19 07:58:35,330 INFO L750 eck$LassoCheckResult]: Loop: 1383#L47-5 assume !false; 1388#L38-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1395#L47-4 assume base2flt_~m#1 % 4294967296 < 16777216; 1383#L47-5 [2023-11-19 07:58:35,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:35,330 INFO L85 PathProgramCache]: Analyzing trace with hash 136451054, now seen corresponding path program 1 times [2023-11-19 07:58:35,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:35,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621996199] [2023-11-19 07:58:35,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:35,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:35,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:35,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:35,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621996199] [2023-11-19 07:58:35,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621996199] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:58:35,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811672778] [2023-11-19 07:58:35,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:35,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:58:35,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:35,430 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:58:35,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-19 07:58:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:35,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:35,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:35,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:35,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:58:35,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:35,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811672778] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:58:35,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:58:35,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:58:35,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131518261] [2023-11-19 07:58:35,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:58:35,533 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:58:35,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:35,534 INFO L85 PathProgramCache]: Analyzing trace with hash 219649, now seen corresponding path program 1 times [2023-11-19 07:58:35,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:35,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192077073] [2023-11-19 07:58:35,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:35,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:35,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:58:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:35,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:58:35,570 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:35,571 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:35,571 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:35,571 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:35,571 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:58:35,571 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:35,571 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:35,571 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:35,572 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2023-11-19 07:58:35,572 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:35,572 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:35,573 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:35,579 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:35,690 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:35,690 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:58:35,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:35,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:35,693 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:35,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:58:35,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:35,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-19 07:58:35,734 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:58:35,734 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:58:35,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:35,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:35,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:35,739 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:35,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:58:35,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:35,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-19 07:58:35,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:35,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:35,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:35,800 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:35,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:58:35,812 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:35,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-19 07:58:35,867 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:58:35,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:35,876 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:35,876 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:35,876 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:35,876 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:35,876 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:58:35,876 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:35,876 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:35,876 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:35,877 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration5_Loop [2023-11-19 07:58:35,877 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:35,877 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:35,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:35,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:35,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:35,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-19 07:58:36,042 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:36,042 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:58:36,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:36,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:36,044 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:36,052 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 [2023-11-19 07:58:36,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-19 07:58:36,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:58:36,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:58:36,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:58:36,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:58:36,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:58:36,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:58:36,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:58:36,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:58:36,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:36,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:36,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:36,105 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:36,107 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 [2023-11-19 07:58:36,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:58:36,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:58:36,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:58:36,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:58:36,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:58:36,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:58:36,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:58:36,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-19 07:58:36,134 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:58:36,138 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:58:36,138 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:58:36,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:36,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:36,141 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:36,144 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:58:36,144 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:58:36,144 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:58:36,144 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2023-11-19 07:58:36,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-19 07:58:36,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:36,169 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:58:36,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:36,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:58:36,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:36,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:36,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:36,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:36,268 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 [2023-11-19 07:58:36,268 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 66 transitions. cyclomatic complexity: 23 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:36,290 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 66 transitions. cyclomatic complexity: 23. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 76 states and 105 transitions. Complement of second has 5 states. [2023-11-19 07:58:36,291 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 [2023-11-19 07:58:36,293 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) [2023-11-19 07:58:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2023-11-19 07:58:36,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 3 letters. [2023-11-19 07:58:36,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:36,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 19 letters. Loop has 3 letters. [2023-11-19 07:58:36,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:36,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 71 transitions. Stem has 16 letters. Loop has 6 letters. [2023-11-19 07:58:36,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:36,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 105 transitions. [2023-11-19 07:58:36,299 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2023-11-19 07:58:36,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 68 states and 92 transitions. [2023-11-19 07:58:36,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2023-11-19 07:58:36,300 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2023-11-19 07:58:36,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 92 transitions. [2023-11-19 07:58:36,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:58:36,300 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 92 transitions. [2023-11-19 07:58:36,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 92 transitions. [2023-11-19 07:58:36,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 51. [2023-11-19 07:58:36,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 50 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:36,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2023-11-19 07:58:36,303 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 70 transitions. [2023-11-19 07:58:36,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:36,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:58:36,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:58:36,304 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:36,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:36,408 INFO L93 Difference]: Finished difference Result 96 states and 130 transitions. [2023-11-19 07:58:36,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 130 transitions. [2023-11-19 07:58:36,410 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-19 07:58:36,411 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 90 states and 124 transitions. [2023-11-19 07:58:36,411 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 71 [2023-11-19 07:58:36,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2023-11-19 07:58:36,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 124 transitions. [2023-11-19 07:58:36,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:58:36,412 INFO L218 hiAutomatonCegarLoop]: Abstraction has 90 states and 124 transitions. [2023-11-19 07:58:36,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 124 transitions. [2023-11-19 07:58:36,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 59. [2023-11-19 07:58:36,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 58 states have internal predecessors, (81), 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) [2023-11-19 07:58:36,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2023-11-19 07:58:36,415 INFO L240 hiAutomatonCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-11-19 07:58:36,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:58:36,416 INFO L428 stractBuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-11-19 07:58:36,416 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-19 07:58:36,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2023-11-19 07:58:36,417 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-11-19 07:58:36,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:58:36,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:58:36,418 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] [2023-11-19 07:58:36,418 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:58:36,418 INFO L748 eck$LassoCheckResult]: Stem: 1842#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;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); 1801#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#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;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#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; 1802#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1836#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1826#base2flt_returnLabel#1 main_#t~ret19#1 := 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;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#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; 1827#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1809#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1810#L47-3 assume !false; 1840#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 1846#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1820#$Ultimate##64 assume 0 == base2flt_~m#1 % 4294967296;base2flt_#t~nondet4#1 := 0; 1834#L76-7 base2flt_~m#1 := base2flt_#t~nondet4#1;havoc base2flt_#t~nondet4#1; 1824#L77-5 assume 0 == base2flt_~m#1 % 4294967296 || base2flt_~m#1 % 4294967296 == 16777216 * ((128 + base2flt_~e#1) % 4294967296) % 4294967296;base2flt_#t~nondet5#1 := 16777216 * ((128 + base2flt_~e#1) % 4294967296); 1797#L77-9 base2flt_~res~0#1 := base2flt_#t~nondet5#1;havoc base2flt_#t~nondet5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1; 1798#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1799#base2flt_returnLabel#2 main_#t~ret20#1 := 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;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#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; 1800#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1791#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 1792#base2flt_returnLabel#3 main_#t~ret21#1 := 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;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#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; 1839#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 1803#L35-3 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1804#L57-11 [2023-11-19 07:58:36,418 INFO L750 eck$LassoCheckResult]: Loop: 1804#L57-11 assume !false; 1811#L58-3 assume base2flt_~m#1 % 4294967296 >= 33554432; 1812#L59-3 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 % 4294967296 / 2; 1804#L57-11 [2023-11-19 07:58:36,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:36,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1276938091, now seen corresponding path program 1 times [2023-11-19 07:58:36,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:36,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220823228] [2023-11-19 07:58:36,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:36,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:36,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:36,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:36,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220823228] [2023-11-19 07:58:36,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220823228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:36,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:36,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:58:36,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507552207] [2023-11-19 07:58:36,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:36,458 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:58:36,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:36,459 INFO L85 PathProgramCache]: Analyzing trace with hash 330806, now seen corresponding path program 1 times [2023-11-19 07:58:36,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:36,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721298538] [2023-11-19 07:58:36,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:36,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:36,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:58:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:36,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:58:36,496 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:36,496 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:36,496 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:36,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:36,496 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:58:36,497 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:36,497 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:36,497 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:36,497 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2023-11-19 07:58:36,497 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:36,497 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:36,498 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:36,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:36,589 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:36,589 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:58:36,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:36,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:36,591 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:36,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:58:36,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:36,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-19 07:58:36,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:36,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:36,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:36,638 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:36,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:58:36,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:36,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-19 07:58:36,695 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:58:36,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:36,704 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:36,704 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:36,704 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:36,704 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:36,704 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:58:36,704 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:36,704 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:36,704 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:36,704 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration6_Loop [2023-11-19 07:58:36,704 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:36,704 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:36,705 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:36,712 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:36,799 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:36,799 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:58:36,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:36,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:36,803 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:36,806 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 [2023-11-19 07:58:36,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:58:36,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:58:36,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:58:36,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:58:36,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:58:36,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:58:36,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:58:36,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-19 07:58:36,838 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:58:36,841 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:58:36,841 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:58:36,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:36,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:36,842 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:36,844 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:58:36,844 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:58:36,844 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:58:36,844 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2023-11-19 07:58:36,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-19 07:58:36,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:36,867 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:58:36,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:36,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:58:36,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:36,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:36,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:36,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:36,947 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 [2023-11-19 07:58:36,948 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 81 transitions. cyclomatic complexity: 27 Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:36,954 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 81 transitions. cyclomatic complexity: 27. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 62 states and 85 transitions. Complement of second has 4 states. [2023-11-19 07:58:36,954 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 [2023-11-19 07:58:36,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:36,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2023-11-19 07:58:36,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 21 letters. Loop has 3 letters. [2023-11-19 07:58:36,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:36,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 24 letters. Loop has 3 letters. [2023-11-19 07:58:36,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:36,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 59 transitions. Stem has 21 letters. Loop has 6 letters. [2023-11-19 07:58:36,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:36,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 85 transitions. [2023-11-19 07:58:36,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-19 07:58:36,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 56 states and 77 transitions. [2023-11-19 07:58:36,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2023-11-19 07:58:36,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2023-11-19 07:58:36,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 77 transitions. [2023-11-19 07:58:36,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:58:36,959 INFO L218 hiAutomatonCegarLoop]: Abstraction has 56 states and 77 transitions. [2023-11-19 07:58:36,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 77 transitions. [2023-11-19 07:58:36,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-19 07:58:36,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.375) internal successors, (77), 55 states have internal predecessors, (77), 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) [2023-11-19 07:58:36,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2023-11-19 07:58:36,961 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 77 transitions. [2023-11-19 07:58:36,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:36,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:58:36,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:58:36,962 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:37,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:37,028 INFO L93 Difference]: Finished difference Result 63 states and 85 transitions. [2023-11-19 07:58:37,028 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 85 transitions. [2023-11-19 07:58:37,029 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-19 07:58:37,030 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 63 states and 85 transitions. [2023-11-19 07:58:37,030 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2023-11-19 07:58:37,031 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2023-11-19 07:58:37,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 85 transitions. [2023-11-19 07:58:37,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 07:58:37,031 INFO L218 hiAutomatonCegarLoop]: Abstraction has 63 states and 85 transitions. [2023-11-19 07:58:37,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 85 transitions. [2023-11-19 07:58:37,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 58. [2023-11-19 07:58:37,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 58 states have (on average 1.3620689655172413) internal successors, (79), 57 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) [2023-11-19 07:58:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2023-11-19 07:58:37,033 INFO L240 hiAutomatonCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-11-19 07:58:37,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:58:37,034 INFO L428 stractBuchiCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-11-19 07:58:37,034 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-19 07:58:37,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 79 transitions. [2023-11-19 07:58:37,035 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-19 07:58:37,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:58:37,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:58:37,036 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] [2023-11-19 07:58:37,036 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 07:58:37,037 INFO L748 eck$LassoCheckResult]: Stem: 2167#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;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); 2130#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~ret19#1, main_#t~ret20#1, main_#t~ret21#1, main_#t~ret22#1, main_#t~ret23#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;havoc main_#t~nondet15#1;main_~ma~2#1 := main_#t~nondet15#1;havoc main_#t~nondet15#1;havoc main_#t~nondet16#1;main_~ea~2#1 := main_#t~nondet16#1;havoc main_#t~nondet16#1;havoc main_~b~0#1;havoc main_#t~nondet17#1;main_~mb~2#1 := main_#t~nondet17#1;havoc main_#t~nondet17#1;havoc main_#t~nondet18#1;main_~eb~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#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; 2131#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2161#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 2152#base2flt_returnLabel#1 main_#t~ret19#1 := 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;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret19#1;havoc main_#t~ret19#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; 2153#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 2137#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 2138#L47-3 assume !false; 2159#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 2144#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2146#$Ultimate##64 assume !(0 == base2flt_~m#1 % 4294967296); 2160#L76-5 assume !(4278190079 == base2flt_~m#1 % 4294967296);assume base2flt_#t~nondet4#1 % 4294967296 <= base2flt_~m#1 % 4294967296;assume base2flt_#t~nondet4#1 % 4294967296 <= 4278190079; 2162#L76-7 base2flt_~m#1 := base2flt_#t~nondet4#1;havoc base2flt_#t~nondet4#1; 2150#L77-5 assume 0 == base2flt_~m#1 % 4294967296 || base2flt_~m#1 % 4294967296 == 16777216 * ((128 + base2flt_~e#1) % 4294967296) % 4294967296;base2flt_#t~nondet5#1 := 16777216 * ((128 + base2flt_~e#1) % 4294967296); 2126#L77-9 base2flt_~res~0#1 := base2flt_#t~nondet5#1;havoc base2flt_#t~nondet5#1;base2flt_~__retres4~0#1 := base2flt_~res~0#1; 2127#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 2128#base2flt_returnLabel#2 main_#t~ret20#1 := 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;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret20#1;havoc main_#t~ret20#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; 2129#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2120#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 2121#base2flt_returnLabel#3 main_#t~ret21#1 := 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;havoc base2flt_#in~m#1, base2flt_#in~e#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret21#1;havoc main_#t~ret21#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; 2165#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 2132#L35-3 assume base2flt_~m#1 % 4294967296 < 16777216; 2133#L47-7 [2023-11-19 07:58:37,037 INFO L750 eck$LassoCheckResult]: Loop: 2133#L47-7 assume !false; 2124#L38-3 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * (base2flt_~m#1 % 4294967296); 2125#L47-6 assume base2flt_~m#1 % 4294967296 < 16777216; 2133#L47-7 [2023-11-19 07:58:37,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:37,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1472036089, now seen corresponding path program 1 times [2023-11-19 07:58:37,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:37,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720662614] [2023-11-19 07:58:37,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:37,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:37,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:37,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720662614] [2023-11-19 07:58:37,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720662614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:37,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:37,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:37,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457845991] [2023-11-19 07:58:37,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:37,128 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 07:58:37,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:37,128 INFO L85 PathProgramCache]: Analyzing trace with hash 305047, now seen corresponding path program 1 times [2023-11-19 07:58:37,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:37,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040423632] [2023-11-19 07:58:37,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:37,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:37,132 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:58:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:58:37,135 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:58:37,165 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:37,165 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:37,165 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:37,165 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:37,165 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:58:37,165 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:37,165 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:37,166 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:37,166 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration7_Loop [2023-11-19 07:58:37,166 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:37,166 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:37,167 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:37,172 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:37,287 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:37,288 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:58:37,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:37,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:37,289 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:37,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:58:37,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:37,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-19 07:58:37,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:37,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:37,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:37,342 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:37,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:58:37,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:58:37,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-19 07:58:37,399 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:58:37,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:37,408 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:58:37,408 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:58:37,408 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:58:37,408 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:58:37,408 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:58:37,408 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:37,408 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:58:37,408 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:58:37,408 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_5a.c.cil.c_Iteration7_Loop [2023-11-19 07:58:37,408 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:58:37,408 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:58:37,409 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:37,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:58:37,531 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:58:37,532 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:58:37,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:37,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:37,533 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:37,536 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 [2023-11-19 07:58:37,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-19 07:58:37,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:58:37,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:58:37,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:58:37,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:58:37,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:58:37,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:58:37,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:58:37,556 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:58:37,558 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:58:37,558 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:58:37,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:58:37,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:37,560 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:37,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-19 07:58:37,567 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:58:37,567 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:58:37,567 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:58:37,567 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2023-11-19 07:58:37,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:37,593 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:58:37,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:37,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:37,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:58:37,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:37,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:37,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:37,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:58:37,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:58:37,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:58:37,759 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 [2023-11-19 07:58:37,759 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 79 transitions. cyclomatic complexity: 25 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:37,767 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 79 transitions. cyclomatic complexity: 25. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 62 states and 83 transitions. Complement of second has 4 states. [2023-11-19 07:58:37,767 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 [2023-11-19 07:58:37,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:37,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2023-11-19 07:58:37,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 22 letters. Loop has 3 letters. [2023-11-19 07:58:37,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:37,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 25 letters. Loop has 3 letters. [2023-11-19 07:58:37,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:37,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 55 transitions. Stem has 22 letters. Loop has 6 letters. [2023-11-19 07:58:37,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:58:37,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 83 transitions. [2023-11-19 07:58:37,772 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:58:37,772 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 0 states and 0 transitions. [2023-11-19 07:58:37,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:58:37,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:58:37,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:58:37,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:58:37,773 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:58:37,773 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:58:37,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:37,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:37,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:37,774 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:58:37,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:37,774 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-19 07:58:37,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-19 07:58:37,775 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:58:37,775 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:58:37,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:58:37,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:58:37,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:58:37,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:58:37,776 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:58:37,776 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:58:37,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:58:37,777 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:58:37,777 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-19 07:58:37,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:58:37,777 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:58:37,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:58:37,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:58:37 BoogieIcfgContainer [2023-11-19 07:58:37,787 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:58:37,787 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:58:37,788 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:58:37,788 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:58:37,788 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:31" (3/4) ... [2023-11-19 07:58:37,790 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:58:37,792 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:58:37,792 INFO L158 Benchmark]: Toolchain (without parser) took 8019.64ms. Allocated memory was 195.0MB in the beginning and 241.2MB in the end (delta: 46.1MB). Free memory was 148.0MB in the beginning and 194.1MB in the end (delta: -46.1MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2023-11-19 07:58:37,793 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 151.0MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:37,793 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.78ms. Allocated memory is still 195.0MB. Free memory was 148.0MB in the beginning and 134.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:58:37,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.16ms. Allocated memory is still 195.0MB. Free memory was 134.8MB in the beginning and 132.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:58:37,794 INFO L158 Benchmark]: Boogie Preprocessor took 74.16ms. Allocated memory is still 195.0MB. Free memory was 132.0MB in the beginning and 129.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:58:37,794 INFO L158 Benchmark]: RCFGBuilder took 753.42ms. Allocated memory is still 195.0MB. Free memory was 129.9MB in the beginning and 103.4MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 07:58:37,795 INFO L158 Benchmark]: BuchiAutomizer took 6766.99ms. Allocated memory was 195.0MB in the beginning and 241.2MB in the end (delta: 46.1MB). Free memory was 103.4MB in the beginning and 194.1MB in the end (delta: -90.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:37,795 INFO L158 Benchmark]: Witness Printer took 4.35ms. Allocated memory is still 241.2MB. Free memory is still 194.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:58:37,797 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 151.0MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.78ms. Allocated memory is still 195.0MB. Free memory was 148.0MB in the beginning and 134.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.16ms. Allocated memory is still 195.0MB. Free memory was 134.8MB in the beginning and 132.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.16ms. Allocated memory is still 195.0MB. Free memory was 132.0MB in the beginning and 129.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 753.42ms. Allocated memory is still 195.0MB. Free memory was 129.9MB in the beginning and 103.4MB in the end (delta: 26.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 6766.99ms. Allocated memory was 195.0MB in the beginning and 241.2MB in the end (delta: 46.1MB). Free memory was 103.4MB in the beginning and 194.1MB in the end (delta: -90.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.35ms. Allocated memory is still 241.2MB. Free memory is still 194.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (6 trivial, 7 deterministic, 0 nondeterministic). One deterministic module has affine ranking function ((-2 * e) + 253) and consists of 4 locations. One deterministic module has affine ranking function ((2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function ((-2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function ((-2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function ((2 * e) + 255) and consists of 3 locations. One deterministic module has affine ranking function ((-2 * e) + 253) and consists of 3 locations. One deterministic module has affine ranking function ((2 * e) + 255) and consists of 3 locations. 6 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.6s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 4.9s. Construction of modules took 0.3s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 10. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 155 StatesRemovedByMinimization, 9 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, 635 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 628 mSDsluCounter, 1120 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 283 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 309 IncrementalHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 837 mSDtfsCounter, 309 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp61 ukn100 mio100 lsp100 div612 bol100 ite100 ukn100 eq132 hnf96 smp41 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 103ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-19 07:58:37,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-19 07:58:38,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b8b1a5-4106-4f91-bb41-8c3e4dbc96dc/bin/uautomizer-verify-uCwYo4JHxu/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